release: prepare for 3.1.0.rc1

The relocatable Python is built from Fedora packages. Unfortunately TLS
certificates are in a different location on Debian variants, which
causes "node_exporter_install" to fail as follows:

  Traceback (most recent call last):
    File "/usr/lib/scylla/libexec/node_exporter_install", line 58, in <module>
      data = curl('https://github.com/prometheus/node_exporter/releases/download/v{version}/node_exporter-{version}.linux-amd64.tar.gz'.format(version=VERSION), byte=True)
    File "/usr/lib/scylla/scylla_util.py", line 40, in curl
      with urllib.request.urlopen(req) as res:
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 222, in urlopen
      return opener.open(url, data, timeout)
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 525, in open
      response = self._open(req, data)
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 543, in _open
      '_open', req)
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 503, in _call_chain
      result = func(*args)
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 1360, in https_open
      context=self._context, check_hostname=self._check_hostname)
    File "/opt/scylladb/python3/lib64/python3.7/urllib/request.py", line 1319, in do_open
      raise URLError(err)
  urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)>
  Unable to retrieve version information
  node exporter setup failed.

Fix the problem by overriding the SSL_CERT_FILE environment variable to
point to the correct location of the TLS bundle.

Message-Id: <20190604175434.24534-1-penberg@scylladb.com>
(cherry picked from commit eb00095bca)

SCYLLA-VERSION-GEN

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 PRODUCT=scylla
-VERSION=666.development
+VERSION=3.1.0.rc1
 
 if test -f version
 then

cql3/statements/raw/select_statement.hh

@@ -76,7 +76,7 @@ public:
         const bool _is_distinct;
         const bool _allow_filtering;
         const bool _is_json;
-        bool _bypass_cache;
+        bool _bypass_cache = false;
     public:
         parameters();
         parameters(orderings_type orderings,

db/batchlog_manager.cc

@@ -396,10 +396,8 @@ std::unordered_set<gms::inet_address> db::batchlog_manager::endpoint_filter(cons
 
     // grab a random member of up to two racks
     for (auto& rack : racks) {
-        auto rack_members = validated.bucket(rack);
-        auto n = validated.bucket_size(rack_members);
         auto cpy = boost::copy_range<std::vector<gms::inet_address>>(validated.equal_range(rack) | boost::adaptors::map_values);
-        std::uniform_int_distribution<size_t> rdist(0, n - 1);
+        std::uniform_int_distribution<size_t> rdist(0, cpy.size() - 1);
         result.emplace(cpy[rdist(_e1)]);
     }
 

db/schema_features.hh

@@ -26,11 +26,17 @@
 namespace db {
 
 enum class schema_feature {
-    VIEW_VIRTUAL_COLUMNS
+    VIEW_VIRTUAL_COLUMNS,
+
+    // When set, the schema digest is calcualted in a way such that it doesn't change after all
+    // tombstones in an empty partition expire.
+    // See https://github.com/scylladb/scylla/issues/4485
+    DIGEST_INSENSITIVE_TO_EXPIRY,
 };
 
 using schema_features = enum_set<super_enum<schema_feature,
-    schema_feature::VIEW_VIRTUAL_COLUMNS
+    schema_feature::VIEW_VIRTUAL_COLUMNS,
+    schema_feature::DIGEST_INSENSITIVE_TO_EXPIRY
     >>;
 
 }

db/schema_tables.cc

@@ -587,9 +587,9 @@ future<utils::UUID> calculate_schema_digest(distributed<service::storage_proxy>&
             return mutations;
         });
     };
-    auto reduce = [] (auto& hash, auto&& mutations) {
+    auto reduce = [features] (auto& hash, auto&& mutations) {
         for (const mutation& m : mutations) {
-            feed_hash_for_schema_digest(hash, m);
+            feed_hash_for_schema_digest(hash, m, features);
         }
     };
     return do_with(md5_hasher(), all_table_names(features), [features, map, reduce] (auto& hash, auto& tables) {
@@ -778,6 +778,13 @@ mutation compact_for_schema_digest(const mutation& m) {
     return m_compacted;
 }
 
+void feed_hash_for_schema_digest(hasher& h, const mutation& m, schema_features features) {
+    auto compacted = compact_for_schema_digest(m);
+    if (!features.contains<schema_feature::DIGEST_INSENSITIVE_TO_EXPIRY>() || !compacted.partition().empty()) {
+        feed_hash(h, compact_for_schema_digest(m));
+    }
+}
+
 // Applies deletion of the "version" column to a system_schema.scylla_tables mutation.
 static void delete_schema_version(mutation& m) {
     if (m.column_family_id() != scylla_tables()->id()) {
@@ -2727,8 +2734,9 @@ namespace legacy {
 
 table_schema_version schema_mutations::digest() const {
     md5_hasher h;
-    db::schema_tables::feed_hash_for_schema_digest(h, _columnfamilies);
-    db::schema_tables::feed_hash_for_schema_digest(h, _columns);
+    const db::schema_features no_features;
+    db::schema_tables::feed_hash_for_schema_digest(h, _columnfamilies, no_features);
+    db::schema_tables::feed_hash_for_schema_digest(h, _columns, no_features);
     return utils::UUID_gen::get_name_UUID(h.finalize());
 }
 

db/schema_tables.hh

@@ -215,10 +215,7 @@ index_metadata_kind deserialize_index_kind(sstring kind);
 
 mutation compact_for_schema_digest(const mutation& m);
 
-template<typename Hasher>
-void feed_hash_for_schema_digest(Hasher& h, const mutation& m) {
-    feed_hash(h, compact_for_schema_digest(m));
-}
+void feed_hash_for_schema_digest(hasher&, const mutation&, schema_features);
 
 } // namespace schema_tables
 } // namespace db

db/view/view.cc

@@ -143,10 +143,9 @@ void view_info::initialize_base_dependent_fields(const schema& base) {
 }
 
 bool view_info::is_index() const {
-    if (!_is_index) {
-        _is_index = service::get_local_storage_service().db().local().find_column_family(base_id()).get_index_manager().is_index(_schema);
-    }
-    return *_is_index;
+    //TODO(sarna): result of this call can be cached instead of calling index_manager::is_index every time
+    column_family& base_cf = service::get_local_storage_service().db().local().find_column_family(base_id());
+    return base_cf.get_index_manager().is_index(view_ptr(_schema.shared_from_this()));
 }
 
 namespace db {

dist/ami/build_ami.sh

@@ -1,6 +1,7 @@
 #!/bin/bash -e
 
-PRODUCT=$(cat SCYLLA-PRODUCT-FILE)
+./SCYLLA-VERSION-GEN
+PRODUCT=$(cat build/SCYLLA-PRODUCT-FILE)
 
 if [ ! -e dist/ami/build_ami.sh ]; then
     echo "run build_ami.sh in top of scylla dir"
@@ -16,6 +17,7 @@ print_usage() {
     exit 1
 }
 LOCALRPM=0
+REPO_FOR_INSTALL=
 while [ $# -gt 0 ]; do
     case "$1" in
         "--localrpm")
@@ -23,10 +25,12 @@ while [ $# -gt 0 ]; do
             shift 1
             ;;
         "--repo")
+            REPO_FOR_INSTALL=$2
             INSTALL_ARGS="$INSTALL_ARGS --repo $2"
             shift 2
             ;;
         "--repo-for-install")
+            REPO_FOR_INSTALL=$2
             INSTALL_ARGS="$INSTALL_ARGS --repo-for-install $2"
             shift 2
             ;;
@@ -123,6 +127,43 @@ if [ $LOCALRPM -eq 1 ]; then
         cd ../..
         cp build/$PRODUCT-ami/build/RPMS/noarch/$PRODUCT-ami-`cat build/$PRODUCT-ami/build/SCYLLA-VERSION-FILE`-`cat build/$PRODUCT-ami/build/SCYLLA-RELEASE-FILE`.*.noarch.rpm dist/ami/files/$PRODUCT-ami.noarch.rpm
     fi
+    if [ ! -f dist/ami/files/$PRODUCT-python3.x86_64.rpm ]; then
+        reloc/python3/build_reloc.sh
+        reloc/python3/build_rpm.sh
+        cp build/redhat/RPMS/x86_64/$PRODUCT-python3*.x86_64.rpm dist/ami/files/$PRODUCT-python3.x86_64.rpm
+    fi
+
+    SCYLLA_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} dist/ami/files/$PRODUCT.x86_64.rpm || true)
+    SCYLLA_AMI_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} dist/ami/files/$PRODUCT-ami.noarch.rpm || true)
+    SCYLLA_JMX_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} dist/ami/files/$PRODUCT-jmx.noarch.rpm || true)
+    SCYLLA_TOOLS_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} dist/ami/files/$PRODUCT-tools.noarch.rpm || true)
+    SCYLLA_PYTHON3_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} dist/ami/files/$PRODUCT-python3.x86_64.rpm || true)
+else
+    if [ -z "$REPO_FOR_INSTALL" ]; then
+        print_usage
+        exit 1
+    fi
+    if [ ! -f /usr/bin/yumdownloader ]; then
+        if is_redhat_variant; then
+            sudo yum install /usr/bin/yumdownloader
+        else
+            sudo apt-get install yum-utils
+        fi
+    fi
+    if [ ! -f /usr/bin/curl ]; then
+        pkg_install curl
+    fi
+    TMPREPO=$(mktemp -u -p /etc/yum.repos.d/ --suffix .repo)
+    sudo curl -o $TMPREPO $REPO_FOR_INSTALL
+    rm -rf build/ami_packages
+    mkdir -p build/ami_packages
+    yumdownloader --downloaddir build/ami_packages/ $PRODUCT $PRODUCT-kernel-conf $PRODUCT-conf $PRODUCT-server $PRODUCT-debuginfo $PRODUCT-ami $PRODUCT-jmx $PRODUCT-tools-core $PRODUCT-tools $PRODUCT-python3
+    sudo rm -f $TMPREPO
+    SCYLLA_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} build/ami_packages/$PRODUCT-[0-9]*.rpm || true)
+    SCYLLA_AMI_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} build/ami_packages/$PRODUCT-ami-*.rpm || true)
+    SCYLLA_JMX_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} build/ami_packages/$PRODUCT-jmx-*.rpm || true)
+    SCYLLA_TOOLS_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} build/ami_packages/$PRODUCT-tools-[0-9]*.rpm || true)
+    SCYLLA_PYTHON3_VERSION=$(rpm -q --qf %{VERSION}-%{RELEASE} build/ami_packages/$PRODUCT-python3-*.rpm || true)
 fi
 
 cd dist/ami
@@ -147,4 +188,4 @@ if [ ! -d packer ]; then
     cd -
 fi
 
-env PACKER_LOG=1 PACKER_LOG_PATH=../../build/ami.log packer/packer build -var-file=variables.json -var install_args="$INSTALL_ARGS" -var region="$REGION" -var source_ami="$AMI" -var ssh_username="$SSH_USERNAME" scylla.json
+env PACKER_LOG=1 PACKER_LOG_PATH=../../build/ami.log packer/packer build -var-file=variables.json -var install_args="$INSTALL_ARGS" -var region="$REGION" -var source_ami="$AMI" -var ssh_username="$SSH_USERNAME" -var scylla_version="$SCYLLA_VERSION" -var scylla_ami_version="$SCYLLA_AMI_VERSION" -var scylla_jmx_version="$SCYLLA_JMX_VERSION" -var scylla_tools_version="$SCYLLA_TOOLS_VERSION" -var scylla_python3_version="$SCYLLA_PYTHON3_VERSION" scylla.json

dist/ami/scylla.json

@@ -56,7 +56,15 @@
       "ssh_username": "{{user `ssh_username`}}",
       "subnet_id": "{{user `subnet_id`}}",
       "type": "amazon-ebs",
-      "user_data_file": "user_data.txt"
+      "user_data_file": "user_data.txt",
+      "ami_description": "scylla-{{user `scylla_version`}} scylla-ami-{{user `scylla_ami_version`}} scylla-jmx-{{user `scylla_jmx_version`}} scylla-tools-{{user `scylla_tools_version`}} scylla-python3-{{user `scylla_python3_version`}}",
+      "tags": {
+          "ScyllaVersion": "{{user `scylla_version`}}",
+          "ScyllaAMIVersion": "{{user `scylla_ami_version`}}",
+          "ScyllaJMXVersion": "{{user `scylla_jmx_version`}}",
+          "ScyllaToolsVersion": "{{user `scylla_tools_version`}}",
+          "ScyllaPython3Version": "{{user `scylla_python3_version`}}"
+      }
     }
   ],
   "provisioners": [

dist/common/scripts/scylla_io_setup

@@ -60,6 +60,17 @@ if __name__ == "__main__":
                 disk_properties["read_bandwidth"] = 2015342735 * nr_disks
                 disk_properties["write_iops"] = 181500 * nr_disks
                 disk_properties["write_bandwidth"] = 808775652 * nr_disks
+            elif idata.instance_class() == "i3en":
+                if idata.instance() in ("i3en.large", "i3.xlarge", "i3en.2xlarge"):
+                    disk_properties["read_iops"] = 46489
+                    disk_properties["read_bandwidth"] = 353437280
+                    disk_properties["write_iops"] = 36680
+                    disk_properties["write_bandwidth"] = 164766656
+                else:
+                    disk_properties["read_iops"] = 278478 * nr_disks
+                    disk_properties["read_bandwidth"] = 3029172992 * nr_disks
+                    disk_properties["write_iops"] = 221909 * nr_disks
+                    disk_properties["write_bandwidth"] = 1020482432 * nr_disks
             elif idata.instance_class() == "i2":
                 disk_properties["read_iops"] = 64000 * nr_disks
                 disk_properties["read_bandwidth"] = 507338935 * nr_disks

dist/common/scripts/scylla_setup

@@ -252,22 +252,22 @@ if __name__ == '__main__':
     if not os.path.exists('/etc/scylla.d/housekeeping.cfg'):
         version_check = interactive_ask_service('Do you want to enable Scylla to check if there is a newer version of Scylla available?', 'Yes - start the Scylla-housekeeping service to check for a newer version. This check runs periodically. No - skips this step.', version_check)
         args.no_version_check = not version_check
-    if version_check:
-        with open('/etc/scylla.d/housekeeping.cfg', 'w') as f:
-            f.write('[housekeeping]\ncheck-version: True\n')
-        if is_systemd():
-            systemd_unit('scylla-housekeeping-daily.timer').unmask()
-            systemd_unit('scylla-housekeeping-restart.timer').unmask()
-    else:
-        with open('/etc/scylla.d/housekeeping.cfg', 'w') as f:
-            f.write('[housekeeping]\ncheck-version: False\n')
-        if is_systemd():
-            hk_daily = systemd_unit('scylla-housekeeping-daily.timer')
-            hk_daily.mask()
-            hk_daily.stop()
-            hk_restart = systemd_unit('scylla-housekeeping-restart.timer')
-            hk_restart.mask()
-            hk_restart.stop()
+        if version_check:
+            with open('/etc/scylla.d/housekeeping.cfg', 'w') as f:
+                f.write('[housekeeping]\ncheck-version: True\n')
+            if is_systemd():
+                systemd_unit('scylla-housekeeping-daily.timer').unmask()
+                systemd_unit('scylla-housekeeping-restart.timer').unmask()
+        else:
+            with open('/etc/scylla.d/housekeeping.cfg', 'w') as f:
+                f.write('[housekeeping]\ncheck-version: False\n')
+            if is_systemd():
+                hk_daily = systemd_unit('scylla-housekeeping-daily.timer')
+                hk_daily.mask()
+                hk_daily.stop()
+                hk_restart = systemd_unit('scylla-housekeeping-restart.timer')
+                hk_restart.mask()
+                hk_restart.stop()
 
     cur_version=out('scylla --version', exception=False)
     if len(cur_version) > 0:

dist/common/scripts/scylla_util.py

@@ -119,7 +119,7 @@ class aws_instance:
         return self._type.split(".")[0]
 
     def is_supported_instance_class(self):
-        if self.instance_class() in ['i2', 'i3']:
+        if self.instance_class() in ['i2', 'i3', 'i3en']:
             return True
         return False
 
@@ -128,7 +128,7 @@ class aws_instance:
         instance_size = self.instance_size()
         if instance_class in ['c3', 'c4', 'd2', 'i2', 'r3']:
             return 'ixgbevf'
-        if instance_class in ['c5', 'c5d', 'f1', 'g3', 'h1', 'i3', 'm5', 'm5d', 'p2', 'p3', 'r4', 'x1']:
+        if instance_class in ['c5', 'c5d', 'f1', 'g3', 'h1', 'i3', 'i3en', 'm5', 'm5d', 'p2', 'p3', 'r4', 'x1']:
             return 'ena'
         if instance_class == 'm4':
             if instance_size == '16xlarge':
@@ -304,7 +304,7 @@ def parse_os_release_line(line):
     val = shlex.split(data)[0]
     return (id, val.split(' ') if id == 'ID' or id == 'ID_LIKE' else val)
 
-os_release = dict([parse_os_release_line(x) for x in open('/etc/os-release').read().splitlines()])
+os_release = dict([parse_os_release_line(x) for x in open('/etc/os-release').read().splitlines() if re.match(r'\w+=', x) ])
 
 def is_debian_variant():
     d = os_release['ID_LIKE'] if 'ID_LIKE' in os_release else os_release['ID']

dist/debian/control.mustache

@@ -16,7 +16,7 @@ Conflicts: {{product}}-server (<< 1.1)
 
 Package: {{product}}-server
 Architecture: amd64
-Depends: ${shlibs:Depends}, ${misc:Depends}, adduser, hwloc-nox, {{product}}-conf, python-yaml, python-urwid, python-requests, curl, util-linux, python3-yaml, python3, uuid-runtime, pciutils, python3-pyudev, gzip, realpath | coreutils, num-utils, file
+Depends: ${shlibs:Depends}, ${misc:Depends}, adduser, hwloc-nox, {{product}}-conf, {{product}}-python3, curl, util-linux, uuid-runtime, pciutils, gzip, realpath | coreutils, num-utils, file
 Description: Scylla database server binaries 
  Scylla is a highly scalable, eventually consistent, distributed,
  partitioned row DB.

dist/debian/python3/build_deb.sh

@@ -0,0 +1,140 @@
+#!/bin/bash -e
+
+PRODUCT=$(cat SCYLLA-PRODUCT-FILE)
+
+. /etc/os-release
+print_usage() {
+    echo "build_deb.sh --reloc-pkg build/release/scylla-python3-package.tar.gz"
+    echo "  --reloc-pkg specify relocatable package path"
+    exit 1
+}
+
+TARGET=stable
+RELOC_PKG=
+while [ $# -gt 0 ]; do
+    case "$1" in
+        "--reloc-pkg")
+            RELOC_PKG=$2
+            shift 2
+            ;;
+        *)
+            print_usage
+            ;;
+    esac
+done
+
+is_redhat_variant() {
+    [ -f /etc/redhat-release ]
+}
+is_debian_variant() {
+    [ -f /etc/debian_version ]
+}
+pkg_install() {
+    if is_redhat_variant; then
+        sudo yum install -y $1
+    elif is_debian_variant; then
+        sudo apt-get install -y $1
+    else
+        echo "Requires to install following command: $1"
+        exit 1
+    fi
+}
+
+if [ ! -e SCYLLA-RELOCATABLE-FILE ]; then
+    echo "do not directly execute build_deb.sh, use reloc/build_deb.sh instead."
+    exit 1
+fi
+
+if [ "$(arch)" != "x86_64" ]; then
+    echo "Unsupported architecture: $(arch)"
+    exit 1
+fi
+
+if [ -z "$RELOC_PKG" ]; then
+    print_usage
+    exit 1
+fi
+if [ ! -f "$RELOC_PKG" ]; then
+    echo "$RELOC_PKG is not found."
+    exit 1
+fi
+
+if [ -e debian ]; then
+    rm -rf debian
+fi
+if is_debian_variant; then
+    sudo apt-get -y update
+fi
+# this hack is needed since some environment installs 'git-core' package, it's
+# subset of the git command and doesn't works for our git-archive-all script.
+if is_redhat_variant && [ ! -f /usr/libexec/git-core/git-submodule ]; then
+    sudo yum install -y git
+fi
+if [ ! -f /usr/bin/git ]; then
+    pkg_install git
+fi
+if [ ! -f /usr/bin/python ]; then
+    pkg_install python
+fi
+if [ ! -f /usr/bin/debuild ]; then
+    pkg_install devscripts
+fi
+if [ ! -f /usr/bin/dh_testdir ]; then
+    pkg_install debhelper
+fi
+if [ ! -f /usr/bin/fakeroot ]; then
+    pkg_install fakeroot
+fi
+if [ ! -f /usr/bin/pystache ]; then
+    if is_redhat_variant; then
+        sudo yum install -y /usr/bin/pystache
+    elif is_debian_variant; then
+        sudo apt-get install -y python-pystache
+    fi
+fi
+if [ ! -f /usr/bin/file ]; then
+    pkg_install file
+fi
+if is_debian_variant && [ ! -f /usr/share/doc/python-pkg-resources/copyright ]; then
+    sudo apt-get install -y python-pkg-resources
+fi
+
+if [ "$ID" = "ubuntu" ] && [ ! -f /usr/share/keyrings/debian-archive-keyring.gpg ]; then
+    sudo apt-get install -y debian-archive-keyring
+fi
+if [ "$ID" = "debian" ] && [ ! -f /usr/share/keyrings/ubuntu-archive-keyring.gpg ]; then
+    sudo apt-get install -y ubuntu-archive-keyring
+fi
+
+if [ -z "$TARGET" ]; then
+    if is_debian_variant; then
+        if [ ! -f /usr/bin/lsb_release ]; then
+            pkg_install lsb-release
+        fi
+        TARGET=`lsb_release -c|awk '{print $2}'`
+    else
+        echo "Please specify target"
+        exit 1
+    fi
+fi
+RELOC_PKG_FULLPATH=$(readlink -f $RELOC_PKG)
+RELOC_PKG_BASENAME=$(basename $RELOC_PKG)
+SCYLLA_VERSION=$(cat SCYLLA-VERSION-FILE)
+SCYLLA_RELEASE=$(cat SCYLLA-RELEASE-FILE)
+
+ln -fv $RELOC_PKG_FULLPATH ../$PRODUCT-python3_$SCYLLA_VERSION-$SCYLLA_RELEASE.orig.tar.gz
+
+cp -al dist/debian/python3/debian debian
+if [ "$PRODUCT" != "scylla" ]; then
+    for i in debian/scylla-*;do
+        mv $i ${i/scylla-/$PRODUCT-}
+    done
+fi
+REVISION="1"
+MUSTACHE_DIST="\"debian\": true, \"product\": \"$PRODUCT\", \"$PRODUCT\": true"
+pystache dist/debian/python3/changelog.mustache "{ $MUSTACHE_DIST, \"version\": \"$SCYLLA_VERSION\", \"release\": \"$SCYLLA_RELEASE\", \"revision\": \"$REVISION\", \"codename\": \"$TARGET\" }" > debian/changelog
+pystache dist/debian/python3/rules.mustache "{ $MUSTACHE_DIST }" > debian/rules
+pystache dist/debian/python3/control.mustache "{ $MUSTACHE_DIST }" > debian/control
+chmod a+rx debian/rules
+
+debuild -rfakeroot -us -uc

dist/debian/python3/changelog.mustache

@@ -0,0 +1,5 @@
+{{product}}-python3 ({{version}}-{{release}}-{{revision}}) {{codename}}; urgency=medium
+
+  * Initial release.
+
+ -- Takuya ASADA <syuu@scylladb.com>  Mon, 24 Aug 2015 09:22:55 +0000

dist/debian/python3/control.mustache

@@ -0,0 +1,16 @@
+Source: {{product}}-python3
+Maintainer: Takuya ASADA <syuu@scylladb.com>
+Homepage: http://scylladb.com
+Section: python
+Priority: optional
+X-Python3-Version: >= 3.4
+Standards-Version: 3.9.5
+
+Package: {{product}}-python3
+Architecture: amd64
+Description: A standalone python3 interpreter that can be moved around different Linux machines
+ This is a self-contained python interpreter that can be moved around
+ different Linux machines as long as they run a new enough kernel (where
+ new enough is defined by whichever Python module uses any kernel
+ functionality). All shared libraries needed for the interpreter to
+ operate are shipped with it.

dist/debian/python3/debian/compat

@@ -0,0 +1 @@
+9

dist/debian/python3/debian/copyright

@@ -0,0 +1,995 @@
+This package was put together by Klee Dienes <klee@debian.org> from 
+sources from ftp.python.org:/pub/python, based on the Debianization by 
+the previous maintainers Bernd S. Brentrup <bsb@uni-muenster.de> and 
+Bruce Perens. Current maintainer is Matthias Klose <doko@debian.org>. 
+
+It was downloaded from http://python.org/
+
+Copyright:
+
+Upstream Author: Guido van Rossum <guido@cwi.nl> and others.
+
+License:
+
+The following text includes the Python license and licenses and
+acknowledgements for incorporated software. The licenses can be read
+in the HTML and texinfo versions of the documentation as well, after
+installing the pythonx.y-doc package. Licenses for files not licensed
+under the Python Licenses are found at the end of this file.
+
+
+Python License
+==============
+
+A. HISTORY OF THE SOFTWARE
+==========================
+
+Python was created in the early 1990s by Guido van Rossum at Stichting
+Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
+as a successor of a language called ABC.  Guido remains Python's
+principal author, although it includes many contributions from others.
+
+In 1995, Guido continued his work on Python at the Corporation for
+National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
+in Reston, Virginia where he released several versions of the
+software.
+
+In May 2000, Guido and the Python core development team moved to
+BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
+year, the PythonLabs team moved to Digital Creations (now Zope
+Corporation, see http://www.zope.com).  In 2001, the Python Software
+Foundation (PSF, see http://www.python.org/psf/) was formed, a
+non-profit organization created specifically to own Python-related
+Intellectual Property.  Zope Corporation is a sponsoring member of
+the PSF.
+
+All Python releases are Open Source (see http://www.opensource.org for
+the Open Source Definition).  Historically, most, but not all, Python
+releases have also been GPL-compatible; the table below summarizes
+the various releases.
+
+    Release         Derived     Year        Owner       GPL-
+                    from                                compatible? (1)
+
+    0.9.0 thru 1.2              1991-1995   CWI         yes
+    1.3 thru 1.5.2  1.2         1995-1999   CNRI        yes
+    1.6             1.5.2       2000        CNRI        no
+    2.0             1.6         2000        BeOpen.com  no
+    1.6.1           1.6         2001        CNRI        yes (2)
+    2.1             2.0+1.6.1   2001        PSF         no
+    2.0.1           2.0+1.6.1   2001        PSF         yes
+    2.1.1           2.1+2.0.1   2001        PSF         yes
+    2.2             2.1.1       2001        PSF         yes
+    2.1.2           2.1.1       2002        PSF         yes
+    2.1.3           2.1.2       2002        PSF         yes
+    2.2 and above   2.1.1       2001-now    PSF         yes
+
+Footnotes:
+
+(1) GPL-compatible doesn't mean that we're distributing Python under
+    the GPL.  All Python licenses, unlike the GPL, let you distribute
+    a modified version without making your changes open source.  The
+    GPL-compatible licenses make it possible to combine Python with
+    other software that is released under the GPL; the others don't.
+
+(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
+    because its license has a choice of law clause.  According to
+    CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
+    is "not incompatible" with the GPL.
+
+Thanks to the many outside volunteers who have worked under Guido's
+direction to make these releases possible.
+
+
+B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
+===============================================================
+
+PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+--------------------------------------------
+
+1. This LICENSE AGREEMENT is between the Python Software Foundation
+("PSF"), and the Individual or Organization ("Licensee") accessing and
+otherwise using this software ("Python") in source or binary form and
+its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, PSF
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python alone
+or in any derivative version, provided, however, that PSF's License
+Agreement and PSF's notice of copyright, i.e., "Copyright (c) 2001,
+2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+2013, 2014 Python Software Foundation; All Rights Reserved" are
+retained in Python alone or in any derivative version prepared by
+Licensee.
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python.
+
+4. PSF is making Python available to Licensee on an "AS IS"
+basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. Nothing in this License Agreement shall be deemed to create any
+relationship of agency, partnership, or joint venture between PSF and
+Licensee.  This License Agreement does not grant permission to use PSF
+trademarks or trade name in a trademark sense to endorse or promote
+products or services of Licensee, or any third party.
+
+8. By copying, installing or otherwise using Python, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
+-------------------------------------------
+
+BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
+
+1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
+office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
+Individual or Organization ("Licensee") accessing and otherwise using
+this software in source or binary form and its associated
+documentation ("the Software").
+
+2. Subject to the terms and conditions of this BeOpen Python License
+Agreement, BeOpen hereby grants Licensee a non-exclusive,
+royalty-free, world-wide license to reproduce, analyze, test, perform
+and/or display publicly, prepare derivative works, distribute, and
+otherwise use the Software alone or in any derivative version,
+provided, however, that the BeOpen Python License is retained in the
+Software, alone or in any derivative version prepared by Licensee.
+
+3. BeOpen is making the Software available to Licensee on an "AS IS"
+basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
+SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
+AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
+DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+5. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+6. This License Agreement shall be governed by and interpreted in all
+respects by the law of the State of California, excluding conflict of
+law provisions.  Nothing in this License Agreement shall be deemed to
+create any relationship of agency, partnership, or joint venture
+between BeOpen and Licensee.  This License Agreement does not grant
+permission to use BeOpen trademarks or trade names in a trademark
+sense to endorse or promote products or services of Licensee, or any
+third party.  As an exception, the "BeOpen Python" logos available at
+http://www.pythonlabs.com/logos.html may be used according to the
+permissions granted on that web page.
+
+7. By copying, installing or otherwise using the software, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
+---------------------------------------
+
+1. This LICENSE AGREEMENT is between the Corporation for National
+Research Initiatives, having an office at 1895 Preston White Drive,
+Reston, VA 20191 ("CNRI"), and the Individual or Organization
+("Licensee") accessing and otherwise using Python 1.6.1 software in
+source or binary form and its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, CNRI
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python 1.6.1
+alone or in any derivative version, provided, however, that CNRI's
+License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
+1995-2001 Corporation for National Research Initiatives; All Rights
+Reserved" are retained in Python 1.6.1 alone or in any derivative
+version prepared by Licensee.  Alternately, in lieu of CNRI's License
+Agreement, Licensee may substitute the following text (omitting the
+quotes): "Python 1.6.1 is made available subject to the terms and
+conditions in CNRI's License Agreement.  This Agreement together with
+Python 1.6.1 may be located on the Internet using the following
+unique, persistent identifier (known as a handle): 1895.22/1013.  This
+Agreement may also be obtained from a proxy server on the Internet
+using the following URL: http://hdl.handle.net/1895.22/1013".
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python 1.6.1 or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python 1.6.1.
+
+4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
+basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. This License Agreement shall be governed by the federal
+intellectual property law of the United States, including without
+limitation the federal copyright law, and, to the extent such
+U.S. federal law does not apply, by the law of the Commonwealth of
+Virginia, excluding Virginia's conflict of law provisions.
+Notwithstanding the foregoing, with regard to derivative works based
+on Python 1.6.1 that incorporate non-separable material that was
+previously distributed under the GNU General Public License (GPL), the
+law of the Commonwealth of Virginia shall govern this License
+Agreement only as to issues arising under or with respect to
+Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in this
+License Agreement shall be deemed to create any relationship of
+agency, partnership, or joint venture between CNRI and Licensee.  This
+License Agreement does not grant permission to use CNRI trademarks or
+trade name in a trademark sense to endorse or promote products or
+services of Licensee, or any third party.
+
+8. By clicking on the "ACCEPT" button where indicated, or by copying,
+installing or otherwise using Python 1.6.1, Licensee agrees to be
+bound by the terms and conditions of this License Agreement.
+
+        ACCEPT
+
+
+CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
+--------------------------------------------------
+
+Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
+The Netherlands.  All rights reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Licenses and Acknowledgements for Incorporated Software
+=======================================================
+
+Mersenne Twister
+----------------
+
+The `_random' module includes code based on a download from
+`http://www.math.keio.ac.jp/~matumoto/MT2002/emt19937ar.html'.  The
+following are the verbatim comments from the original code:
+
+     A C-program for MT19937, with initialization improved 2002/1/26.
+     Coded by Takuji Nishimura and Makoto Matsumoto.
+
+     Before using, initialize the state by using init_genrand(seed)
+     or init_by_array(init_key, key_length).
+
+     Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
+     All rights reserved.
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions
+     are met:
+
+      1. Redistributions of source code must retain the above copyright
+         notice, this list of conditions and the following disclaimer.
+
+      2. Redistributions in binary form must reproduce the above copyright
+         notice, this list of conditions and the following disclaimer in the
+         documentation and/or other materials provided with the distribution.
+
+      3. The names of its contributors may not be used to endorse or promote
+         products derived from this software without specific prior written
+         permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+     A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
+     OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+     TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+     LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+     NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+     Any feedback is very welcome.
+     http://www.math.keio.ac.jp/matumoto/emt.html
+     email: matumoto@math.keio.ac.jp
+
+
+Sockets
+-------
+
+The `socket' module uses the functions, `getaddrinfo', and
+`getnameinfo', which are coded in separate source files from the WIDE
+Project, `http://www.wide.ad.jp/about/index.html'.
+
+     Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+     All rights reserved.
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions
+     are met:
+     1. Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+     2. Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+     3. Neither the name of the project nor the names of its contributors
+        may be used to endorse or promote products derived from this software
+        without specific prior written permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+     GAI_ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+     ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+     FOR GAI_ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+     INTERRUPTION) HOWEVER CAUSED AND ON GAI_ANY THEORY OF LIABILITY, WHETHER
+     IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+     ARISING IN GAI_ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+     OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Floating point exception control
+--------------------------------
+
+The source for the `fpectl' module includes the following notice:
+
+     ---------------------------------------------------------------------  
+    /                       Copyright (c) 1996.                           \ 
+   |          The Regents of the University of California.                 |
+   |                        All rights reserved.                           |
+   |                                                                       |
+   |   Permission to use, copy, modify, and distribute this software for   |
+   |   any purpose without fee is hereby granted, provided that this en-   |
+   |   tire notice is included in all copies of any software which is or   |
+   |   includes  a  copy  or  modification  of  this software and in all   |
+   |   copies of the supporting documentation for such software.           |
+   |                                                                       |
+   |   This  work was produced at the University of California, Lawrence   |
+   |   Livermore National Laboratory under  contract  no.  W-7405-ENG-48   |
+   |   between  the  U.S.  Department  of  Energy and The Regents of the   |
+   |   University of California for the operation of UC LLNL.              |
+   |                                                                       |
+   |                              DISCLAIMER                               |
+   |                                                                       |
+   |   This  software was prepared as an account of work sponsored by an   |
+   |   agency of the United States Government. Neither the United States   |
+   |   Government  nor the University of California nor any of their em-   |
+   |   ployees, makes any warranty, express or implied, or  assumes  any   |
+   |   liability  or  responsibility  for the accuracy, completeness, or   |
+   |   usefulness of any information,  apparatus,  product,  or  process   |
+   |   disclosed,   or  represents  that  its  use  would  not  infringe   |
+   |   privately-owned rights. Reference herein to any specific  commer-   |
+   |   cial  products,  process,  or  service  by trade name, trademark,   |
+   |   manufacturer, or otherwise, does not  necessarily  constitute  or   |
+   |   imply  its endorsement, recommendation, or favoring by the United   |
+   |   States Government or the University of California. The views  and   |
+   |   opinions  of authors expressed herein do not necessarily state or   |
+   |   reflect those of the United States Government or  the  University   |
+   |   of  California,  and shall not be used for advertising or product   |
+    \  endorsement purposes.                                              / 
+     ---------------------------------------------------------------------
+
+
+Cookie management
+-----------------
+
+The `Cookie' module contains the following notice:
+
+      Copyright 2000 by Timothy O'Malley <timo@alum.mit.edu>
+
+                     All Rights Reserved
+
+      Permission to use, copy, modify, and distribute this software
+      and its documentation for any purpose and without fee is hereby
+      granted, provided that the above copyright notice appear in all
+      copies and that both that copyright notice and this permission
+      notice appear in supporting documentation, and that the name of
+      Timothy O'Malley  not be used in advertising or publicity
+      pertaining to distribution of the software without specific, written
+      prior permission.
+
+      Timothy O'Malley DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+      SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+      AND FITNESS, IN NO EVENT SHALL Timothy O'Malley BE LIABLE FOR
+      ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+      WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+      WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+      ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+      PERFORMANCE OF THIS SOFTWARE.
+
+
+Execution tracing
+-----------------
+
+The `trace' module contains the following notice:
+
+      portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
+      err...  reserved and offered to the public under the terms of the
+      Python 2.2 license.
+      Author: Zooko O'Whielacronx
+      http://zooko.com/
+      mailto:zooko@zooko.com
+
+      Copyright 2000, Mojam Media, Inc., all rights reserved.
+      Author: Skip Montanaro
+
+      Copyright 1999, Bioreason, Inc., all rights reserved.
+      Author: Andrew Dalke
+
+      Copyright 1995-1997, Automatrix, Inc., all rights reserved.
+      Author: Skip Montanaro
+
+      Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
+
+      Permission to use, copy, modify, and distribute this Python software and
+      its associated documentation for any purpose without fee is hereby
+      granted, provided that the above copyright notice appears in all copies,
+      and that both that copyright notice and this permission notice appear in
+      supporting documentation, and that the name of neither Automatrix,
+      Bioreason or Mojam Media be used in advertising or publicity pertaining
+      to distribution of the software without specific, written prior
+      permission.
+
+
+UUencode and UUdecode functions
+-------------------------------
+
+The `uu' module contains the following notice:
+
+      Copyright 1994 by Lance Ellinghouse
+      Cathedral City, California Republic, United States of America.
+                             All Rights Reserved
+      Permission to use, copy, modify, and distribute this software and its
+      documentation for any purpose and without fee is hereby granted,
+      provided that the above copyright notice appear in all copies and that
+      both that copyright notice and this permission notice appear in
+      supporting documentation, and that the name of Lance Ellinghouse
+      not be used in advertising or publicity pertaining to distribution
+      of the software without specific, written prior permission.
+      LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
+      THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+      FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE
+      FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+      WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+      ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+      OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+      Modified by Jack Jansen, CWI, July 1995:
+      - Use binascii module to do the actual line-by-line conversion
+        between ascii and binary. This results in a 1000-fold speedup. The C
+        version is still 5 times faster, though.
+      - Arguments more compliant with python standard
+
+
+XML Remote Procedure Calls
+--------------------------
+
+The `xmlrpclib' module contains the following notice:
+
+          The XML-RPC client interface is
+
+      Copyright (c) 1999-2002 by Secret Labs AB
+      Copyright (c) 1999-2002 by Fredrik Lundh
+
+      By obtaining, using, and/or copying this software and/or its
+      associated documentation, you agree that you have read, understood,
+      and will comply with the following terms and conditions:
+
+      Permission to use, copy, modify, and distribute this software and
+      its associated documentation for any purpose and without fee is
+      hereby granted, provided that the above copyright notice appears in
+      all copies, and that both that copyright notice and this permission
+      notice appear in supporting documentation, and that the name of
+      Secret Labs AB or the author not be used in advertising or publicity
+      pertaining to distribution of the software without specific, written
+      prior permission.
+
+      SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+      TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
+      ABILITY AND FITNESS.  IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
+      BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+      DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+      WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+      ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+      OF THIS SOFTWARE.
+
+Licenses for Software linked to
+===============================
+
+Note that the choice of GPL compatibility outlined above doesn't extend
+to modules linked to particular libraries, since they change the
+effective License of the module binary.
+
+
+GNU Readline
+------------
+
+The 'readline' module makes use of GNU Readline.
+
+      The GNU Readline Library is free software; you can redistribute it
+      and/or modify it under the terms of the GNU General Public License as
+      published by the Free Software Foundation; either version 2, or (at
+      your option) any later version.
+
+      On Debian systems, you can find the complete statement in
+      /usr/share/doc/readline-common/copyright'. A copy of the GNU General
+      Public License is available in /usr/share/common-licenses/GPL-2'.
+
+
+OpenSSL
+-------
+
+The '_ssl' module makes use of OpenSSL.
+
+      The OpenSSL toolkit stays under a dual license, i.e. both the
+      conditions of the OpenSSL License and the original SSLeay license
+      apply to the toolkit. Actually both licenses are BSD-style Open
+      Source licenses. Note that both licenses are incompatible with
+      the GPL.
+
+      On Debian systems, you can find the complete license text in
+      /usr/share/doc/openssl/copyright'.
+
+
+Files with other licenses than the Python License
+-------------------------------------------------
+
+Files: Include/dynamic_annotations.h
+Files: Python/dynamic_annotations.c
+Copyright: (c) 2008-2009, Google Inc.
+License: Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+ 
+      * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+      * Neither the name of Google Inc. nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+ 
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Files: Include/unicodeobject.h
+Copyright: (c) Corporation for National Research Initiatives.
+Copyright: (c) 1999 by Secret Labs AB.
+Copyright: (c) 1999 by Fredrik Lundh.
+License: By obtaining, using, and/or copying this software and/or its
+  associated documentation, you agree that you have read, understood,
+  and will comply with the following terms and conditions:
+ 
+  Permission to use, copy, modify, and distribute this software and its
+  associated documentation for any purpose and without fee is hereby
+  granted, provided that the above copyright notice appears in all
+  copies, and that both that copyright notice and this permission notice
+  appear in supporting documentation, and that the name of Secret Labs
+  AB or the author not be used in advertising or publicity pertaining to
+  distribution of the software without specific, written prior
+  permission.
+ 
+  SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
+  THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+  FITNESS.  IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+  OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: Lib/logging/*
+Copyright: 2001-2010 by Vinay Sajip. All Rights Reserved.
+License: Permission to use, copy, modify, and distribute this software and
+ its documentation for any purpose and without fee is hereby granted,
+ provided that the above copyright notice appear in all copies and that
+ both that copyright notice and this permission notice appear in
+ supporting documentation, and that the name of Vinay Sajip
+ not be used in advertising or publicity pertaining to distribution
+ of the software without specific, written prior permission.
+ VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: Lib/multiprocessing/*
+Files: Modules/_multiprocessing/*
+Copyright: (c) 2006-2008, R Oudkerk. All rights reserved.
+License: Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+ 3. Neither the name of author nor the names of any contributors may be
+    used to endorse or promote products derived from this software
+    without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+Files: Lib/sqlite3/*
+Files: Modules/_sqlite/*
+Copyright: (C) 2004-2005 Gerhard Häring <gh@ghaering.de>
+License: This software is provided 'as-is', without any express or implied
+ warranty.  In no event will the authors be held liable for any damages
+ arising from the use of this software.
+ 
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+ 
+ 1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+Files: Lib/async*
+Copyright: Copyright 1996 by Sam Rushing
+License: Permission to use, copy, modify, and distribute this software and
+ its documentation for any purpose and without fee is hereby
+ granted, provided that the above copyright notice appear in all
+ copies and that both that copyright notice and this permission
+ notice appear in supporting documentation, and that the name of Sam
+ Rushing not be used in advertising or publicity pertaining to
+ distribution of the software without specific, written prior
+ permission.
+ 
+ SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: Lib/tarfile.py
+Copyright: (C) 2002 Lars Gustaebel <lars@gustaebel.de>
+License: Permission  is  hereby granted,  free  of charge,  to  any person
+ obtaining a  copy of  this software  and associated documentation
+ files  (the  "Software"),  to   deal  in  the  Software   without
+ restriction,  including  without limitation  the  rights to  use,
+ copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies  of  the  Software,  and to  permit  persons  to  whom the
+ Software  is  furnished  to  do  so,  subject  to  the  following
+ conditions:
+ 
+ The above copyright  notice and this  permission notice shall  be
+ included in all copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS  IS", WITHOUT WARRANTY OF ANY  KIND,
+ EXPRESS OR IMPLIED, INCLUDING  BUT NOT LIMITED TO  THE WARRANTIES
+ OF  MERCHANTABILITY,  FITNESS   FOR  A  PARTICULAR   PURPOSE  AND
+ NONINFRINGEMENT.  IN  NO  EVENT SHALL  THE  AUTHORS  OR COPYRIGHT
+ HOLDERS  BE LIABLE  FOR ANY  CLAIM, DAMAGES  OR OTHER  LIABILITY,
+ WHETHER  IN AN  ACTION OF  CONTRACT, TORT  OR OTHERWISE,  ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
+
+Files: Lib/turtle.py
+Copyright: (C) 2006 - 2010  Gregor Lingl
+License: This software is provided 'as-is', without any express or implied
+ warranty.  In no event will the authors be held liable for any damages
+ arising from the use of this software.
+ 
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+ 
+ 1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ is copyright Gregor Lingl and licensed under a BSD-like license
+
+Files: Modules/_ctypes/libffi/*
+Copyright: Copyright (C) 1996-2011 Red Hat, Inc and others.
+    Copyright (C) 1996-2011 Anthony Green
+    Copyright (C) 1996-2010 Free Software Foundation, Inc
+    Copyright (c) 2003, 2004, 2006, 2007, 2008 Kaz Kojima
+    Copyright (c) 2010, 2011, Plausible Labs Cooperative , Inc.
+    Copyright (c) 2010 CodeSourcery
+    Copyright (c) 1998 Andreas Schwab
+    Copyright (c) 2000 Hewlett Packard Company
+    Copyright (c) 2009 Bradley Smith
+    Copyright (c) 2008 David Daney
+    Copyright (c) 2004 Simon Posnjak
+    Copyright (c) 2005 Axis Communications AB
+    Copyright (c) 1998 Cygnus Solutions
+    Copyright (c) 2004 Renesas Technology
+    Copyright (c) 2002, 2007  Bo Thorsen <bo@suse.de>
+    Copyright (c) 2002 Ranjit Mathew
+    Copyright (c) 2002 Roger Sayle
+    Copyright (c) 2000, 2007 Software AG
+    Copyright (c) 2003 Jakub Jelinek
+    Copyright (c) 2000, 2001 John Hornkvist
+    Copyright (c) 1998 Geoffrey Keating
+    Copyright (c) 2008 Björn König
+
+License: Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software and associated documentation files (the
+   ``Software''), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be included
+   in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+   DEALINGS IN THE SOFTWARE.
+
+   Documentation:
+   Permission is granted to copy, distribute and/or modify this document
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.  A copy of the license is included in the
+   section entitled ``GNU General Public License''.
+
+Files: Modules/_gestalt.c
+Copyright: 1991-1997 by Stichting Mathematisch Centrum, Amsterdam.
+License: Permission to use, copy, modify, and distribute this software and its
+ documentation for any purpose and without fee is hereby granted,
+ provided that the above copyright notice appear in all copies and that
+ both that copyright notice and this permission notice appear in
+ supporting documentation, and that the names of Stichting Mathematisch
+ Centrum or CWI not be used in advertising or publicity pertaining to
+ distribution of the software without specific, written prior permission.
+ 
+ STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+ FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: Modules/syslogmodule.c
+Copyright: 1994 by Lance Ellinghouse
+License: Permission to use, copy, modify, and distribute this software and its
+ documentation for any purpose and without fee is hereby granted,
+ provided that the above copyright notice appear in all copies and that
+ both that copyright notice and this permission notice appear in
+ supporting documentation, and that the name of Lance Ellinghouse
+ not be used in advertising or publicity pertaining to distribution
+ of the software without specific, written prior permission.
+ 
+ LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE BE LIABLE FOR ANY SPECIAL,
+ INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: Modules/zlib/*
+Copyright: (C) 1995-2010 Jean-loup Gailly and Mark Adler
+License: This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+ If you use the zlib library in a product, we would appreciate *not* receiving
+ lengthy legal documents to sign.  The sources are provided for free but without
+ warranty of any kind.  The library has been entirely written by Jean-loup
+ Gailly and Mark Adler; it does not include third-party code.
+
+Files: Modules/expat/*
+Copyright: Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd
+  and Clark Cooper
+  Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006 Expat maintainers
+License: Permission is hereby granted, free of charge, to any person obtaining
+  a copy of this software and associated documentation files (the
+  "Software"), to deal in the Software without restriction, including
+  without limitation the rights to use, copy, modify, merge, publish,
+  distribute, sublicense, and/or sell copies of the Software, and to
+  permit persons to whom the Software is furnished to do so, subject to
+  the following conditions:
+ 
+  The above copyright notice and this permission notice shall be included
+  in all copies or substantial portions of the Software.
+ 
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Files: Modules/_decimal/libmpdec/*
+Copyright: Copyright (c) 2008-2012 Stefan Krah. All rights reserved.
+License: Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ .
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+ .
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+ ,
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+Files: Misc/python-mode.el
+Copyright: Copyright (C) 1992,1993,1994  Tim Peters
+License: This software is provided as-is, without express or implied
+	warranty.  Permission to use, copy, modify, distribute or sell this
+	software, without fee, for any purpose and by any individual or
+	organization, is hereby granted, provided that the above copyright
+	notice and this paragraph appear in all copies.
+
+Files: Python/dtoa.c
+Copyright: (c) 1991, 2000, 2001 by Lucent Technologies.
+License: Permission to use, copy, modify, and distribute this software for any
+  purpose without fee is hereby granted, provided that this entire notice
+  is included in all copies of any software which is or includes a copy
+  or modification of this software and in all copies of the supporting
+  documentation for such software.
+  
+  THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+  WARRANTY.  IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY
+  REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
+  OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+
+Files: Python/getopt.c
+Copyright: 1992-1994, David Gottner
+License: Permission to use, copy, modify, and distribute this software and its
+  documentation for any purpose and without fee is hereby granted,
+  provided that the above copyright notice, this permission notice and
+  the following disclaimer notice appear unmodified in all copies.
+  
+  I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL I
+  BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+  DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER
+  IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+  OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: PC/_subprocess.c
+Copyright: Copyright (c) 2004 by Fredrik Lundh <fredrik@pythonware.com>
+	Copyright (c) 2004 by Secret Labs AB, http://www.pythonware.com
+	Copyright (c) 2004 by Peter Astrand <astrand@lysator.liu.se>
+License:
+ * Permission to use, copy, modify, and distribute this software and
+ * its associated documentation for any purpose and without fee is
+ * hereby granted, provided that the above copyright notice appears in
+ * all copies, and that both that copyright notice and this permission
+ * notice appear in supporting documentation, and that the name of the
+ * authors not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission.
+ *
+ * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Files: PC/winsound.c
+Copyright: Copyright (c) 1999 Toby Dickenson
+License:  * Permission to use this software in any way is granted without
+ * fee, provided that the copyright notice above appears in all
+ * copies. This software is provided "as is" without any warranty.
+ */
+
+/* Modified by Guido van Rossum */
+/* Beep added by Mark Hammond */
+/* Win9X Beep and platform identification added by Uncle Timmy */
+
+Files: Tools/pybench/*
+Copyright: (c), 1997-2006, Marc-Andre Lemburg (mal@lemburg.com)
+  (c), 2000-2006, eGenix.com Software GmbH (info@egenix.com)
+License: Permission to use, copy, modify, and distribute this software and its
+  documentation for any purpose and without fee or royalty is hereby
+  granted, provided that the above copyright notice appear in all copies
+  and that both that copyright notice and this permission notice appear
+  in supporting documentation or portions thereof, including
+  modifications, that you make.
+  
+  THE AUTHOR MARC-ANDRE LEMBURG DISCLAIMS ALL WARRANTIES WITH REGARD TO
+  THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+  FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
+  INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+  FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+  NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+  WITH THE USE OR PERFORMANCE OF THIS SOFTWARE !

dist/debian/python3/debian/scylla-python3.dirs

@@ -0,0 +1,3 @@
+opt/scylladb/python3/bin
+opt/scylladb/python3/lib64
+opt/scylladb/python3/libexec

dist/debian/python3/debian/scylla-python3.install

@@ -0,0 +1,3 @@
+bin/* opt/scylladb/python3/bin
+lib64/* opt/scylladb/python3/lib64
+libexec/* opt/scylladb/python3/libexec

dist/debian/python3/rules.mustache

@@ -0,0 +1,22 @@
+#!/usr/bin/make -f
+
+export PYBUILD_DISABLE=1
+
+override_dh_auto_configure:
+
+override_dh_auto_build:
+
+override_dh_strip:
+
+override_dh_makeshlibs:
+
+override_dh_shlibdeps:
+
+override_dh_fixperms:
+	dh_fixperms
+	chmod 755 $(CURDIR)/debian/{{product}}-python3/opt/scylladb/python3/libexec/ld.so
+
+override_dh_strip_nondeterminism:
+
+%:
+	dh $@

dist/debian/rules.mustache

@@ -15,6 +15,14 @@ override_dh_auto_install:
 	ln -sf /opt/scylladb/bin/scylla $(CURDIR)/debian/scylla-server/usr/bin/scylla
 	ln -sf /opt/scylladb/bin/iotune $(CURDIR)/debian/scylla-server/usr/bin/iotune
 	ln -sf /usr/lib/scylla/scyllatop/scyllatop.py $(CURDIR)/debian/scylla-server/usr/bin/scyllatop
+	find ./dist/common/scripts -type f -exec ./relocate_python_scripts.py \
+	--installroot $(CURDIR)/debian/scylla-server/usr/lib/scylla/ --with-python3 "$(CURDIR)/debian/scylla-server/opt/scylladb/python3/bin/python3" {} +
+	./relocate_python_scripts.py \
+	--installroot $(CURDIR)/debian/scylla-server/usr/lib/scylla/ --with-python3 "$(CURDIR)/debian/scylla-server/opt/scylladb/python3/bin/python3" \
+	seastar/scripts/perftune.py seastar/scripts/seastar-addr2line seastar/scripts/perftune.py
+	./relocate_python_scripts.py \
+	--installroot $(CURDIR)/debian/scylla-server/usr/lib/scylla/scyllatop/ --with-python3 "$(CURDIR)/debian/scylla-server/opt/scylladb/python3/bin/python3" \
+	tools/scyllatop/scyllatop.py
 
 override_dh_installinit:
 {{#scylla}}

dist/debian/scylla-server.install.mustache

@@ -1,11 +1,7 @@
 dist/common/limits.d/scylla.conf etc/security/limits.d
 dist/common/scylla.d/*.conf etc/scylla.d
 seastar/dpdk/usertools/dpdk-devbind.py usr/lib/scylla
-seastar/scripts/perftune.py usr/lib/scylla
-seastar/scripts/seastar-addr2line usr/lib/scylla
 seastar/scripts/seastar-cpu-map.sh usr/lib/scylla
-dist/common/scripts/* usr/lib/scylla
-tools/scyllatop usr/lib/scylla
 swagger-ui/dist usr/lib/scylla/swagger-ui
 api/api-doc usr/lib/scylla/api
 bin/* opt/scylladb/bin

gc_clock.hh

@@ -22,6 +22,7 @@
 #pragma once
 
 #include "clocks-impl.hh"
+#include "hashing.hh"
 
 #include <seastar/core/lowres_clock.hh>
 
@@ -71,3 +72,17 @@ using ttl_opt = std::optional<gc_clock::duration>;
 static constexpr gc_clock::duration max_ttl = gc_clock::duration{20 * 365 * 24 * 60 * 60};
 
 std::ostream& operator<<(std::ostream& os, gc_clock::time_point tp);
+
+template<>
+struct appending_hash<gc_clock::time_point> {
+    template<typename Hasher>
+    void operator()(Hasher& h, gc_clock::time_point t) const {
+        // Remain backwards-compatible with the 32-bit duration::rep (refs #4460).
+        uint64_t d64 = t.time_since_epoch().count();
+        feed_hash(h, uint32_t(d64 & 0xffff'ffff));
+        uint32_t msb = d64 >> 32;
+        if (msb) {
+            feed_hash(h, msb);
+        }
+    }
+};

hashers.cc

@@ -29,7 +29,7 @@ template <typename T> struct hasher_traits;
 template <> struct hasher_traits<md5_hasher> { using impl_type = CryptoPP::Weak::MD5; };
 template <> struct hasher_traits<sha256_hasher> { using impl_type = CryptoPP::SHA256; };
 
-template <typename T, size_t size> struct hasher<T, size>::impl {
+template <typename T, size_t size> struct cryptopp_hasher<T, size>::impl {
     using impl_type = typename hasher_traits<T>::impl_type;
 
     impl_type hash{};
@@ -53,35 +53,35 @@ template <typename T, size_t size> struct hasher<T, size>::impl {
     }
 };
 
-template <typename T, size_t size> hasher<T, size>::hasher() : _impl(std::make_unique<impl>()) {}
+template <typename T, size_t size> cryptopp_hasher<T, size>::cryptopp_hasher() : _impl(std::make_unique<impl>()) {}
 
-template <typename T, size_t size> hasher<T, size>::~hasher() = default;
+template <typename T, size_t size> cryptopp_hasher<T, size>::~cryptopp_hasher() = default;
 
-template <typename T, size_t size> hasher<T, size>::hasher(hasher&& o) noexcept = default;
+template <typename T, size_t size> cryptopp_hasher<T, size>::cryptopp_hasher(cryptopp_hasher&& o) noexcept = default;
 
-template <typename T, size_t size> hasher<T, size>::hasher(const hasher& o) : _impl(std::make_unique<hasher<T, size>::impl>(*o._impl)) {}
+template <typename T, size_t size> cryptopp_hasher<T, size>::cryptopp_hasher(const cryptopp_hasher& o) : _impl(std::make_unique<cryptopp_hasher<T, size>::impl>(*o._impl)) {}
 
-template <typename T, size_t size> hasher<T, size>& hasher<T, size>::operator=(hasher&& o) noexcept = default;
+template <typename T, size_t size> cryptopp_hasher<T, size>& cryptopp_hasher<T, size>::operator=(cryptopp_hasher&& o) noexcept = default;
 
-template <typename T, size_t size> hasher<T, size>& hasher<T, size>::operator=(const hasher& o) {
-    _impl = std::make_unique<hasher<T, size>::impl>(*o._impl);
+template <typename T, size_t size> cryptopp_hasher<T, size>& cryptopp_hasher<T, size>::operator=(const cryptopp_hasher& o) {
+    _impl = std::make_unique<cryptopp_hasher<T, size>::impl>(*o._impl);
     return *this;
 }
 
-template <typename T, size_t size> bytes hasher<T, size>::finalize() { return _impl->finalize(); }
+template <typename T, size_t size> bytes cryptopp_hasher<T, size>::finalize() { return _impl->finalize(); }
 
-template <typename T, size_t size> std::array<uint8_t, size> hasher<T, size>::finalize_array() {
+template <typename T, size_t size> std::array<uint8_t, size> cryptopp_hasher<T, size>::finalize_array() {
     return _impl->finalize_array();
 }
 
-template <typename T, size_t size> void hasher<T, size>::update(const char* ptr, size_t length) { _impl->update(ptr, length); }
+template <typename T, size_t size> void cryptopp_hasher<T, size>::update(const char* ptr, size_t length) { _impl->update(ptr, length); }
 
-template <typename T, size_t size> bytes hasher<T, size>::calculate(const std::string_view& s) {
-    typename hasher<T, size>::impl::impl_type hash;
+template <typename T, size_t size> bytes cryptopp_hasher<T, size>::calculate(const std::string_view& s) {
+    typename cryptopp_hasher<T, size>::impl::impl_type hash;
     unsigned char digest[size];
     hash.CalculateDigest(digest, reinterpret_cast<const unsigned char*>(s.data()), s.size());
     return std::move(bytes{reinterpret_cast<const int8_t*>(digest), size});
 }
 
-template class hasher<md5_hasher, 16>;
-template class hasher<sha256_hasher, 32>;
+template class cryptopp_hasher<md5_hasher, 16>;
+template class cryptopp_hasher<sha256_hasher, 32>;

hashers.hh

@@ -22,29 +22,30 @@
 #pragma once
 
 #include "bytes.hh"
+#include "hashing.hh"
 
 class md5_hasher;
 
-template <typename T, size_t size> class hasher {
+template <typename T, size_t size> class cryptopp_hasher : public hasher {
     struct impl;
     std::unique_ptr<impl> _impl;
 
 public:
-    hasher();
-    ~hasher();
-    hasher(hasher&&) noexcept;
-    hasher(const hasher&);
-    hasher& operator=(hasher&&) noexcept;
-    hasher& operator=(const hasher&);
+    cryptopp_hasher();
+    ~cryptopp_hasher();
+    cryptopp_hasher(cryptopp_hasher&&) noexcept;
+    cryptopp_hasher(const cryptopp_hasher&);
+    cryptopp_hasher& operator=(cryptopp_hasher&&) noexcept;
+    cryptopp_hasher& operator=(const cryptopp_hasher&);
 
     bytes finalize();
     std::array<uint8_t, size> finalize_array();
-    void update(const char* ptr, size_t length);
+    void update(const char* ptr, size_t length) override;
 
     // Use update and finalize to compute the hash over the full view.
     static bytes calculate(const std::string_view& s);
 };
 
-class md5_hasher : public hasher<md5_hasher, 16> {};
+class md5_hasher final : public cryptopp_hasher<md5_hasher, 16> {};
 
-class sha256_hasher : public hasher<sha256_hasher, 32> {};
+class sha256_hasher final : public cryptopp_hasher<sha256_hasher, 32> {};

hashing.hh

@@ -27,6 +27,7 @@
 #include <seastar/core/byteorder.hh>
 #include <seastar/core/sstring.hh>
 #include "seastarx.hh"
+#include <seastar/util/gcc6-concepts.hh>
 
 //
 // This hashing differs from std::hash<> in that it decouples knowledge about
@@ -41,24 +42,38 @@
 // appending_hash<T> is machine-independent.
 //
 
-// The Hasher concept
-struct Hasher {
-    void update(const char* ptr, size_t size);
+GCC6_CONCEPT(
+    template<typename H>
+    concept bool Hasher() {
+        return requires(H& h, const char* ptr, size_t size) {
+            { h.update(ptr, size) } -> void
+        };
+    }
+)
+
+class hasher {
+public:
+    virtual ~hasher() = default;
+    virtual void update(const char* ptr, size_t size) = 0;
 };
 
+GCC6_CONCEPT(static_assert(Hasher<hasher>());)
+
 template<typename T, typename Enable = void>
 struct appending_hash;
 
-template<typename Hasher, typename T, typename... Args>
+template<typename H, typename T, typename... Args>
+GCC6_CONCEPT(requires Hasher<H>())
 inline
-void feed_hash(Hasher& h, const T& value, Args&&... args) {
+void feed_hash(H& h, const T& value, Args&&... args) {
     appending_hash<T>()(h, value, std::forward<Args>(args)...);
 };
 
 template<typename T>
 struct appending_hash<T, std::enable_if_t<std::is_arithmetic<T>::value>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, T value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, T value) const {
         auto value_le = cpu_to_le(value);
         h.update(reinterpret_cast<const char*>(&value_le), sizeof(T));
     }
@@ -66,24 +81,27 @@ struct appending_hash<T, std::enable_if_t<std::is_arithmetic<T>::value>> {
 
 template<>
 struct appending_hash<bool> {
-    template<typename Hasher>
-    void operator()(Hasher& h, bool value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, bool value) const {
         feed_hash(h, static_cast<uint8_t>(value));
     }
 };
 
 template<typename T>
 struct appending_hash<T, std::enable_if_t<std::is_enum<T>::value>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, const T& value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const T& value) const {
         feed_hash(h, static_cast<std::underlying_type_t<T>>(value));
     }
 };
 
 template<typename T>
 struct appending_hash<std::optional<T>>  {
-    template<typename Hasher>
-    void operator()(Hasher& h, const std::optional<T>& value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const std::optional<T>& value) const {
         if (value) {
             feed_hash(h, true);
             feed_hash(h, *value);
@@ -95,8 +113,9 @@ struct appending_hash<std::optional<T>>  {
 
 template<size_t N>
 struct appending_hash<char[N]>  {
-    template<typename Hasher>
-    void operator()(Hasher& h, const char (&value) [N]) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const char (&value) [N]) const {
         feed_hash(h, N);
         h.update(value, N);
     }
@@ -104,8 +123,9 @@ struct appending_hash<char[N]>  {
 
 template<typename T>
 struct appending_hash<std::vector<T>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, const std::vector<T>& value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const std::vector<T>& value) const {
         feed_hash(h, value.size());
         for (auto&& v : value) {
             appending_hash<T>()(h, v);
@@ -115,8 +135,9 @@ struct appending_hash<std::vector<T>> {
 
 template<typename K, typename V>
 struct appending_hash<std::map<K, V>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, const std::map<K, V>& value) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const std::map<K, V>& value) const {
         feed_hash(h, value.size());
         for (auto&& e : value) {
             appending_hash<K>()(h, e.first);
@@ -127,8 +148,9 @@ struct appending_hash<std::map<K, V>> {
 
 template<>
 struct appending_hash<sstring> {
-    template<typename Hasher>
-    void operator()(Hasher& h, const sstring& v) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const sstring& v) const {
         feed_hash(h, v.size());
         h.update(reinterpret_cast<const char*>(v.cbegin()), v.size() * sizeof(sstring::value_type));
     }
@@ -136,8 +158,9 @@ struct appending_hash<sstring> {
 
 template<>
 struct appending_hash<std::string> {
-    template<typename Hasher>
-    void operator()(Hasher& h, const std::string& v) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, const std::string& v) const {
         feed_hash(h, v.size());
         h.update(reinterpret_cast<const char*>(v.data()), v.size() * sizeof(std::string::value_type));
     }
@@ -145,16 +168,18 @@ struct appending_hash<std::string> {
 
 template<typename T, typename R>
 struct appending_hash<std::chrono::duration<T, R>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, std::chrono::duration<T, R> v) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, std::chrono::duration<T, R> v) const {
         feed_hash(h, v.count());
     }
 };
 
 template<typename Clock, typename Duration>
 struct appending_hash<std::chrono::time_point<Clock, Duration>> {
-    template<typename Hasher>
-    void operator()(Hasher& h, std::chrono::time_point<Clock, Duration> v) const {
+    template<typename H>
+    GCC6_CONCEPT(requires Hasher<H>())
+    void operator()(H& h, std::chrono::time_point<Clock, Duration> v) const {
         feed_hash(h, v.time_since_epoch().count());
     }
 };

reloc/python3/build_deb.sh

@@ -0,0 +1,37 @@
+#!/bin/bash -e
+
+. /etc/os-release
+print_usage() {
+    echo "build_deb.sh --reloc-pkg build/release/scylla-python3-package.tar.gz"
+    echo "  --reloc-pkg specify relocatable package path"
+    exit 1
+}
+
+RELOC_PKG=build/release/scylla-python3-package.tar.gz
+OPTS=""
+while [ $# -gt 0 ]; do
+    case "$1" in
+        "--reloc-pkg")
+            OPTS="$OPTS $1 $(readlink -f $2)"
+            RELOC_PKG=$2
+            shift 2
+            ;;
+        *)
+            print_usage
+            ;;
+    esac
+done
+
+if [ ! -e $RELOC_PKG ]; then
+    echo "$RELOC_PKG does not exist."
+    echo "Run ./reloc/python3/build_reloc.sh first."
+    exit 1
+fi
+RELOC_PKG=$(readlink -f $RELOC_PKG)
+if [[ ! $OPTS =~ --reloc-pkg ]]; then
+    OPTS="$OPTS --reloc-pkg $RELOC_PKG"
+fi
+mkdir -p build/debian/scylla-python3-package
+tar -C build/debian/scylla-python3-package -xpf $RELOC_PKG
+cd build/debian/scylla-python3-package
+exec ./dist/debian/python3/build_deb.sh $OPTS

repair/row_level.cc

@@ -643,6 +643,8 @@ public:
         }
         return parallel_for_each(*repair_metas, [repair_metas] (auto& rm) {
             return rm->stop();
+        }).then([repair_metas, from] {
+            rlogger.debug("Removed all repair_meta for single node {}", from);
         });
     }
 
@@ -655,6 +657,8 @@ public:
         repair_meta_map().clear();
         return parallel_for_each(*repair_metas, [repair_metas] (auto& rm) {
             return rm->stop();
+        }).then([repair_metas] {
+            rlogger.debug("Removed all repair_meta for all nodes");
         });
     }
 

schema_mutations.cc

@@ -69,19 +69,30 @@ table_schema_version schema_mutations::digest() const {
     }
 
     md5_hasher h;
-    db::schema_tables::feed_hash_for_schema_digest(h, _columnfamilies);
-    db::schema_tables::feed_hash_for_schema_digest(h, _columns);
+    db::schema_features sf = db::schema_features::full();
+
+    // Disable this feature so that the digest remains compactible with Scylla
+    // versions prior to this feature.
+    // This digest affects the table schema version calculation and it's important
+    // that all nodes arrive at the same table schema version to avoid needless schema version
+    // pulls. Table schema versions are calculated on boot when we don't yet
+    // know all the cluster features, so we could get different table versions after reboot
+    // in an already upgraded cluster.
+    sf.remove<db::schema_feature::DIGEST_INSENSITIVE_TO_EXPIRY>();
+
+    db::schema_tables::feed_hash_for_schema_digest(h, _columnfamilies, sf);
+    db::schema_tables::feed_hash_for_schema_digest(h, _columns, sf);
     if (_view_virtual_columns && !_view_virtual_columns->partition().empty()) {
-        db::schema_tables::feed_hash_for_schema_digest(h, *_view_virtual_columns);
+        db::schema_tables::feed_hash_for_schema_digest(h, *_view_virtual_columns, sf);
     }
     if (_indices && !_indices->partition().empty()) {
-        db::schema_tables::feed_hash_for_schema_digest(h, *_indices);
+        db::schema_tables::feed_hash_for_schema_digest(h, *_indices, sf);
     }
     if (_dropped_columns && !_dropped_columns->partition().empty()) {
-        db::schema_tables::feed_hash_for_schema_digest(h, *_dropped_columns);
+        db::schema_tables::feed_hash_for_schema_digest(h, *_dropped_columns, sf);
     }
     if (_scylla_tables) {
-        db::schema_tables::feed_hash_for_schema_digest(h, *_scylla_tables);
+        db::schema_tables::feed_hash_for_schema_digest(h, *_scylla_tables, sf);
     }
     return utils::UUID_gen::get_name_UUID(h.finalize());
 }

scripts/create-relocatable-package-python3.py

@@ -231,9 +231,15 @@ ar = tarfile.open(args.output, mode='w|gz')
 pathlib.Path('build/SCYLLA-RELOCATABLE-FILE').touch()
 ar.add('build/SCYLLA-RELOCATABLE-FILE', arcname='SCYLLA-RELOCATABLE-FILE')
 ar.add('dist/redhat/python3')
+ar.add('dist/debian/python3')
 ar.add('build/python3/SCYLLA-RELEASE-FILE', arcname='SCYLLA-RELEASE-FILE')
 ar.add('build/python3/SCYLLA-VERSION-FILE', arcname='SCYLLA-VERSION-FILE')
 ar.add('build/SCYLLA-PRODUCT-FILE', arcname='SCYLLA-PRODUCT-FILE')
+for p in ['pyhton3-libs'] + packages:
+    pdir = pathlib.Path('/usr/share/licenses/{}/'.format(p))
+    if pdir.exists():
+        for f in pdir.glob('*'):
+            ar.add(f, arcname='licenses/{}/{}'.format(p, f.name))
 
 for f in file_list:
     copy_file_to_python_env(ar, f)

scripts/relocate_python_scripts.py

@@ -34,7 +34,15 @@ class FilesystemFixup:
 x="$(readlink -f "$0")"
 b="$(basename "$x")"
 d="$(dirname "$x")"
-PYTHONPATH="${{d}}:${{d}}/libexec:$PYTHONPATH" PATH="${{d}}/{pythonpath}:${{PATH}}" exec -a "$0" "${{d}}/libexec/${{b}}" "$@"
+CENTOS_SSL_CERT_FILE="/etc/pki/tls/cert.pem"
+if [ -f "${{CENTOS_SSL_CERT_FILE}}" ]; then
+  c=${{CENTOS_SSL_CERT_FILE}}
+fi
+DEBIAN_SSL_CERT_FILE="/etc/ssl/certs/ca-certificates.crt"
+if [ -f "${{DEBIAN_SSL_CERT_FILE}}" ]; then
+  c=${{DEBIAN_SSL_CERT_FILE}}
+fi
+PYTHONPATH="${{d}}:${{d}}/libexec:$PYTHONPATH" PATH="${{d}}/{pythonpath}:${{PATH}}" SSL_CERT_FILE="${{c}}" exec -a "$0" "${{d}}/libexec/${{b}}" "$@"
 '''
         self.python_path = python_path
         self.installroot = installroot

service/cache_hitrate_calculator.hh

@@ -30,11 +30,24 @@ using namespace seastar;
 namespace service {
 
 class cache_hitrate_calculator : public seastar::async_sharded_service<cache_hitrate_calculator> {
+    struct stat {
+        float h = 0;
+        float m = 0;
+        stat& operator+=(stat& o) {
+            h += o.h;
+            m += o.m;
+            return *this;
+        }
+    };
+
     seastar::sharded<database>& _db;
     seastar::sharded<cache_hitrate_calculator>& _me;
     timer<lowres_clock> _timer;
     bool _stopped = false;
     float _diff = 0;
+    std::unordered_map<utils::UUID, stat> _rates;
+    size_t _slen = 0;
+    std::string _gstate;
     future<> _done = make_ready_future();
 
     future<lowres_clock::duration> recalculate_hitrates();

service/migration_manager.cc

@@ -82,12 +82,16 @@ future<> migration_manager::stop()
 void migration_manager::init_messaging_service()
 {
     auto& ss = service::get_local_storage_service();
-    _feature_listeners.push_back(ss.cluster_supports_view_virtual_columns().when_enabled([this, &ss] {
+
+    auto update_schema = [this, &ss] {
         with_gate(_background_tasks, [this, &ss] {
-            mlogger.debug("view_virtual_columns feature enabled, recalculating schema version");
+            mlogger.debug("features changed, recalculating schema version");
             return update_schema_version(get_storage_proxy(), ss.cluster_schema_features());
         });
-    }));
+    };
+
+    _feature_listeners.push_back(ss.cluster_supports_view_virtual_columns().when_enabled(update_schema));
+    _feature_listeners.push_back(ss.cluster_supports_digest_insensitive_to_expiry().when_enabled(update_schema));
 
     auto& ms = netw::get_local_messaging_service();
     ms.register_definitions_update([this] (const rpc::client_info& cinfo, std::vector<frozen_mutation> m) {

service/misc_services.cc

@@ -113,16 +113,6 @@ void cache_hitrate_calculator::run_on(size_t master, lowres_clock::duration d) {
 }
 
 future<lowres_clock::duration> cache_hitrate_calculator::recalculate_hitrates() {
-    struct stat {
-        float h = 0;
-        float m = 0;
-        stat& operator+=(stat& o) {
-            h += o.h;
-            m += o.m;
-            return *this;
-        }
-    };
-
     auto non_system_filter = [&] (const std::pair<utils::UUID, lw_shared_ptr<column_family>>& cf) {
         return _db.local().find_keyspace(cf.second->schema()->ks_name()).get_replication_strategy().get_type() != locator::replication_strategy_type::local;
     };
@@ -144,15 +134,18 @@ future<lowres_clock::duration> cache_hitrate_calculator::recalculate_hitrates()
 
     return _db.map_reduce0(cf_to_cache_hit_stats, std::unordered_map<utils::UUID, stat>(), sum_stats_per_cf).then([this, non_system_filter] (std::unordered_map<utils::UUID, stat> rates) mutable {
         _diff = 0;
+        _gstate.reserve(_slen); // assume length did not change from previous iteration
+        _slen = 0;
+        _rates = std::move(rates);
         // set calculated rates on all shards
-        return _db.invoke_on_all([this, rates = std::move(rates), cpuid = engine().cpu_id(), non_system_filter] (database& db) {
-            sstring gstate;
-            for (auto& cf : db.get_column_families() | boost::adaptors::filtered(non_system_filter)) {
-                auto it = rates.find(cf.first);
-                if (it == rates.end()) { // a table may be added before map/reduce compltes and this code runs
-                    continue;
+        return _db.invoke_on_all([this, cpuid = engine().cpu_id(), non_system_filter] (database& db) {
+            return do_for_each(_rates, [this, cpuid, &db] (auto&& r) mutable {
+                auto it = db.get_column_families().find(r.first);
+                if (it == db.get_column_families().end()) { // a table may be added before map/reduce completes and this code runs
+                    return;
                 }
-                stat s = it->second;
+                auto& cf = *it;
+                stat& s = r.second;
                 float rate = 0;
                 if (s.h) {
                     rate = s.h / (s.h + s.m);
@@ -160,24 +153,25 @@ future<lowres_clock::duration> cache_hitrate_calculator::recalculate_hitrates()
                 if (engine().cpu_id() == cpuid) {
                     // calculate max difference between old rate and new one for all cfs
                     _diff = std::max(_diff, std::abs(float(cf.second->get_global_cache_hit_rate()) - rate));
-                    gstate += format("{}.{}:{:f};", cf.second->schema()->ks_name(), cf.second->schema()->cf_name(), rate);
+                    _gstate += format("{}.{}:{:0.6f};", cf.second->schema()->ks_name(), cf.second->schema()->cf_name(), rate);
                 }
                 cf.second->set_global_cache_hit_rate(cache_temperature(rate));
-            }
-            if (gstate.size()) {
-                auto& g = gms::get_local_gossiper();
-                auto& ss = get_local_storage_service();
-                return g.add_local_application_state(gms::application_state::CACHE_HITRATES, ss.value_factory.cache_hitrates(std::move(gstate)));
-            }
-            return make_ready_future<>();
+            });
         });
     }).then([this] {
+        auto& g = gms::get_local_gossiper();
+        auto& ss = get_local_storage_service();
+        _slen = _gstate.size();
+        g.add_local_application_state(gms::application_state::CACHE_HITRATES, ss.value_factory.cache_hitrates(_gstate));
         // if max difference during this round is big schedule next recalculate earlier
         if (_diff < 0.01) {
             return std::chrono::milliseconds(2000);
         } else {
             return std::chrono::milliseconds(500);
         }
+    }).finally([this] {
+        _gstate = std::string(); // free memory, do not trust clear() to do that for string
+        _rates.clear();
     });
 }
 

service/storage_service.cc

@@ -110,6 +110,7 @@ static const sstring TRUNCATION_TABLE = "TRUNCATION_TABLE";
 static const sstring CORRECT_STATIC_COMPACT_IN_MC = "CORRECT_STATIC_COMPACT_IN_MC";
 static const sstring UNBOUNDED_RANGE_TOMBSTONES_FEATURE = "UNBOUNDED_RANGE_TOMBSTONES";
 static const sstring VIEW_VIRTUAL_COLUMNS = "VIEW_VIRTUAL_COLUMNS";
+static const sstring DIGEST_INSENSITIVE_TO_EXPIRY = "DIGEST_INSENSITIVE_TO_EXPIRY";
 
 static const sstring SSTABLE_FORMAT_PARAM_NAME = "sstable_format";
 
@@ -162,6 +163,7 @@ storage_service::storage_service(distributed<database>& db, gms::gossiper& gossi
         , _correct_static_compact_in_mc(_feature_service, CORRECT_STATIC_COMPACT_IN_MC)
         , _unbounded_range_tombstones_feature(_feature_service, UNBOUNDED_RANGE_TOMBSTONES_FEATURE)
         , _view_virtual_columns(_feature_service, VIEW_VIRTUAL_COLUMNS)
+        , _digest_insensitive_to_expiry(_feature_service, DIGEST_INSENSITIVE_TO_EXPIRY)
         , _la_feature_listener(*this, _feature_listeners_sem, sstables::sstable_version_types::la)
         , _mc_feature_listener(*this, _feature_listeners_sem, sstables::sstable_version_types::mc)
         , _replicate_action([this] { return do_replicate_to_all_cores(); })
@@ -208,6 +210,7 @@ void storage_service::enable_all_features() {
         std::ref(_correct_static_compact_in_mc),
         std::ref(_unbounded_range_tombstones_feature),
         std::ref(_view_virtual_columns),
+        std::ref(_digest_insensitive_to_expiry),
     })
     {
         if (features.count(f.name())) {
@@ -311,6 +314,7 @@ std::set<sstring> storage_service::get_config_supported_features_set() {
         TRUNCATION_TABLE,
         CORRECT_STATIC_COMPACT_IN_MC,
         VIEW_VIRTUAL_COLUMNS,
+        DIGEST_INSENSITIVE_TO_EXPIRY,
     };
 
     // Do not respect config in the case database is not started
@@ -3479,6 +3483,7 @@ void storage_service::notify_cql_change(inet_address endpoint, bool ready)
 db::schema_features storage_service::cluster_schema_features() const {
     db::schema_features f;
     f.set_if<db::schema_feature::VIEW_VIRTUAL_COLUMNS>(bool(_view_virtual_columns));
+    f.set_if<db::schema_feature::DIGEST_INSENSITIVE_TO_EXPIRY>(bool(_digest_insensitive_to_expiry));
     return f;
 }
 

service/storage_service.hh

@@ -323,6 +323,7 @@ private:
     gms::feature _correct_static_compact_in_mc;
     gms::feature _unbounded_range_tombstones_feature;
     gms::feature _view_virtual_columns;
+    gms::feature _digest_insensitive_to_expiry;
 
     sstables::sstable_version_types _sstables_format = sstables::sstable_version_types::ka;
     seastar::semaphore _feature_listeners_sem = {1};
@@ -2338,6 +2339,9 @@ public:
     const gms::feature& cluster_supports_view_virtual_columns() const {
         return _view_virtual_columns;
     }
+    const gms::feature& cluster_supports_digest_insensitive_to_expiry() const {
+        return _digest_insensitive_to_expiry;
+    }
     // Returns schema features which all nodes in the cluster advertise as supported.
     db::schema_features cluster_schema_features() const;
 private:

sstables/compaction.cc

@@ -104,16 +104,6 @@ static bool belongs_to_current_node(const dht::token& t, const dht::token_range_
     return false;
 }
 
-static void delete_sstables_for_interrupted_compaction(std::vector<shared_sstable>& new_sstables, sstring& ks, sstring& cf) {
-    // Delete either partially or fully written sstables of a compaction that
-    // was either stopped abruptly (e.g. out of disk space) or deliberately
-    // (e.g. nodetool stop COMPACTION).
-    for (auto& sst : new_sstables) {
-        clogger.debug("Deleting sstable {} of interrupted compaction for {}.{}", sst->get_filename(), ks, cf);
-        sst->mark_for_deletion();
-    }
-}
-
 static std::vector<shared_sstable> get_uncompacting_sstables(column_family& cf, std::vector<shared_sstable> sstables) {
     auto all_sstables = boost::copy_range<std::vector<shared_sstable>>(*cf.get_sstables_including_compacted_undeleted());
     boost::sort(all_sstables, [] (const shared_sstable& x, const shared_sstable& y) {
@@ -317,6 +307,9 @@ protected:
     column_family& _cf;
     schema_ptr _schema;
     std::vector<shared_sstable> _sstables;
+    // Unused sstables are tracked because if compaction is interrupted we can only delete them.
+    // Deleting used sstables could potentially result in data loss.
+    std::vector<shared_sstable> _new_unused_sstables;
     lw_shared_ptr<sstable_set> _compacting;
     uint64_t _max_sstable_size;
     uint32_t _sstable_level;
@@ -347,6 +340,7 @@ protected:
 
     void setup_new_sstable(shared_sstable& sst) {
         _info->new_sstables.push_back(sst);
+        _new_unused_sstables.push_back(sst);
         sst->get_metadata_collector().set_replay_position(_rp);
         sst->get_metadata_collector().sstable_level(_sstable_level);
         for (auto ancestor : _ancestors) {
@@ -488,6 +482,16 @@ private:
     const schema_ptr& schema() const {
         return _schema;
     }
+
+    void delete_sstables_for_interrupted_compaction() {
+        // Delete either partially or fully written sstables of a compaction that
+        // was either stopped abruptly (e.g. out of disk space) or deliberately
+        // (e.g. nodetool stop COMPACTION).
+        for (auto& sst : _new_unused_sstables) {
+            clogger.debug("Deleting sstable {} of interrupted compaction for {}.{}", sst->get_filename(), _info->ks_name, _info->cf_name);
+            sst->mark_for_deletion();
+        }
+    }
 public:
     static future<compaction_info> run(std::unique_ptr<compaction> c);
 
@@ -521,7 +525,6 @@ void compacting_sstable_writer::consume_end_of_stream() {
 class regular_compaction : public compaction {
     std::function<shared_sstable()> _creator;
     replacer_fn _replacer;
-    std::vector<shared_sstable> _unreplaced_new_tables;
     std::unordered_set<shared_sstable> _compacting_for_max_purgeable_func;
     // store a clone of sstable set for column family, which needs to be alive for incremental selector.
     sstable_set _set;
@@ -625,8 +628,6 @@ private:
     }
 
     void maybe_replace_exhausted_sstables() {
-        _unreplaced_new_tables.push_back(_sst);
-
         // Replace exhausted sstable(s), if any, by new one(s) in the column family.
         auto not_exhausted = [s = _schema, &dk = _sst->get_last_decorated_key()] (shared_sstable& sst) {
             return sst->get_last_decorated_key().tri_compare(*s, dk) > 0;
@@ -668,7 +669,7 @@ private:
                 _compacting->erase(sst);
                 _monitor_generator.remove_sstable(_info->tracking, sst);
             });
-            _replacer(std::vector<shared_sstable>(exhausted, _sstables.end()), std::move(_unreplaced_new_tables));
+            _replacer(std::vector<shared_sstable>(exhausted, _sstables.end()), std::move(_new_unused_sstables));
             _sstables.erase(exhausted, _sstables.end());
         }
     }
@@ -677,7 +678,7 @@ private:
         if (!_sstables.empty()) {
             std::vector<shared_sstable> sstables_compacted;
             std::move(_sstables.begin(), _sstables.end(), std::back_inserter(sstables_compacted));
-            _replacer(std::move(sstables_compacted), std::move(_unreplaced_new_tables));
+            _replacer(std::move(sstables_compacted), std::move(_new_unused_sstables));
         }
     }
 
@@ -877,7 +878,7 @@ future<compaction_info> compaction::run(std::unique_ptr<compaction> c) {
             auto r = std::move(reader);
             r.consume_in_thread(std::move(cfc), c->filter_func(), db::no_timeout);
         } catch (...) {
-            delete_sstables_for_interrupted_compaction(c->_info->new_sstables, c->_info->ks_name, c->_info->cf_name);
+            c->delete_sstables_for_interrupted_compaction();
             c = nullptr; // make sure writers are stopped while running in thread context
             throw;
         }

sstables/compaction_strategy.cc

@@ -479,11 +479,6 @@ public:
             auto itw = writes_per_window.find(bound);
             if (itw != writes_per_window.end()) {
                 ow_this_window = &itw->second;
-                // We will erase here so we can keep track of which
-                // writes belong to existing windows. Writes that don't belong to any window
-                // are writes in progress to new windows and will be accounted in the final
-                // loop before we return
-                writes_per_window.erase(itw);
             }
             auto* oc_this_window = &no_oc;
             auto itc = compactions_per_window.find(bound);
@@ -491,6 +486,13 @@ public:
                 oc_this_window = &itc->second;
             }
             b += windows.second.backlog(*ow_this_window, *oc_this_window);
+            if (itw != writes_per_window.end()) {
+                // We will erase here so we can keep track of which
+                // writes belong to existing windows. Writes that don't belong to any window
+                // are writes in progress to new windows and will be accounted in the final
+                // loop before we return
+                writes_per_window.erase(itw);
+            }
         }
 
         // Partial writes that don't belong to any window are accounted here.

sstables/mc/writer.cc

@@ -983,7 +983,7 @@ void writer::write_cell(bytes_ostream& writer, const clustering_key_prefix* clus
                        properties.local_deletion_time == cell.deletion_time();
 
     cell_flags flags = cell_flags::none;
-    if (!has_value) {
+    if ((!has_value && !cdef.is_counter()) || is_deleted) {
         flags |= cell_flags::has_empty_value_mask;
     }
     if (is_deleted) {
@@ -1017,15 +1017,17 @@ void writer::write_cell(bytes_ostream& writer, const clustering_key_prefix* clus
         write(_sst.get_version(), writer, cell_path);
     }
 
-    if (has_value) {
-        if (cdef.is_counter()) {
+    if (cdef.is_counter()) {
+        if (!is_deleted) {
             assert(!cell.is_counter_update());
             counter_cell_view::with_linearized(cell, [&] (counter_cell_view ccv) {
                 write_counter_value(ccv, writer, sstable_version_types::mc, [] (bytes_ostream& out, uint32_t value) {
                     return write_vint(out, value);
                 });
             });
-        } else {
+        }
+    } else {
+        if (has_value) {
             write_cell_value(writer, *cdef.type, cell.value());
         }
     }

sstables/mp_row_consumer.cc

@@ -44,6 +44,14 @@ namespace sstables {
 atomic_cell make_counter_cell(api::timestamp_type timestamp, bytes_view value) {
     static constexpr size_t shard_size = 32;
 
+    if (value.empty()) {
+        // This will never happen in a correct MC sstable but
+        // we had a bug #4363 that caused empty counters
+        // to be incorrectly stored inside sstables.
+        counter_cell_builder ccb;
+        return ccb.build(timestamp);
+    }
+
     data_input in(value);
 
     auto header_size = in.read<int16_t>();
@@ -59,8 +67,6 @@ atomic_cell make_counter_cell(api::timestamp_type timestamp, bytes_view value) {
         throw marshal_exception("encountered remote shards in a counter cell");
     }
 
-    std::vector<counter_shard> shards;
-    shards.reserve(shard_count);
     counter_cell_builder ccb(shard_count);
     for (auto i = 0u; i < shard_count; i++) {
         auto id_hi = in.read<int64_t>();

sstables/types.hh

@@ -458,7 +458,8 @@ enum sstable_feature : uint8_t {
     NonCompoundRangeTombstones = 1, // See #2986
     ShadowableTombstones = 2, // See #3885
     CorrectStaticCompact = 3, // See #4139
-    End = 4,
+    CorrectEmptyCounters = 4, // See #4363
+    End = 5,
 };
 
 // Scylla-specific features enabled for a particular sstable.

tests/perf/perf_fast_forward.cc

@@ -184,6 +184,7 @@ using stats_values = std::tuple<
     double, // frags_per_second mad
     double, // frags_per_second max
     double, // frags_per_second min
+    double, // average aio
     uint64_t, // aio
     uint64_t, // kb
     uint64_t, // blocked
@@ -223,6 +224,7 @@ std::array<sstring, std::tuple_size<stats_values>::value> stats_formats =
     "{:.0f}",
     "{:.0f}",
     "{:.0f}",
+    "{:.1f}", // average aio
     "{}",
     "{}",
     "{}",
@@ -573,6 +575,7 @@ private:
     double _fragment_rate_mad = 0;
     double _fragment_rate_max = 0;
     double _fragment_rate_min = 0;
+    double _average_aio_operations = 0;
     sstring_vec _params;
     std::optional<sstring> _error;
 public:
@@ -602,6 +605,9 @@ public:
         _fragment_rate_min = min;
     }
 
+    double average_aio_operations() const { return _average_aio_operations; }
+    void set_average_aio_operations(double aio) { _average_aio_operations = aio; }
+
     uint64_t aio_reads() const { return after.io.aio_reads - before.io.aio_reads; }
     uint64_t aio_read_bytes() const { return after.io.aio_read_bytes - before.io.aio_read_bytes; }
     uint64_t aio_writes() const { return after.io.aio_writes - before.io.aio_writes; }
@@ -632,6 +638,7 @@ public:
             {"mad f/s",  "{:>10}"},
             {"max f/s",  "{:>10}"},
             {"min f/s",  "{:>10}"},
+            {"avg aio",  "{:>10}"},
             {"aio",      "{:>6}"},
             {"(KiB)",    "{:>10}"},
             {"blocked",  "{:>7}"},
@@ -661,6 +668,7 @@ public:
             fragment_rate_mad(),
             fragment_rate_max(),
             fragment_rate_min(),
+            average_aio_operations(),
             aio_reads() + aio_writes(),
             (aio_read_bytes() + aio_written_bytes()) / 1024,
             reads_blocked(),
@@ -1138,6 +1146,11 @@ public:
     void done() {
         for (auto&& result : results) {
             print_all(result);
+
+            auto average_aio = boost::accumulate(result, 0., [&] (double a, const test_result& b) {
+                return a + b.aio_reads() + b.aio_writes();
+            }) / (result.empty() ? 1 : result.size());
+
             boost::sort(result, [] (const test_result& a, const test_result& b) {
                 return a.fragment_rate() < b.fragment_rate();
             });
@@ -1153,6 +1166,7 @@ public:
             auto fragment_rate_mad = deviation[deviation.size() / 2];
             median.set_fragment_rate_stats(fragment_rate_mad, fragment_rate_max, fragment_rate_min);
             median.set_iteration_count(result.size());
+            median.set_average_aio_operations(average_aio);
             print(median);
         }
     }

tests/schema_change_test.cc

@@ -34,6 +34,8 @@
 #include "schema_registry.hh"
 #include "types/list.hh"
 #include "types/user.hh"
+#include "db/config.hh"
+#include "tmpdir.hh"
 
 SEASTAR_TEST_CASE(test_new_schema_with_no_structural_change_is_propagated) {
     return do_with_cql_env([](cql_test_env& e) {
@@ -505,3 +507,83 @@ SEASTAR_TEST_CASE(test_prepared_statement_is_invalidated_by_schema_change) {
         });
     });
 }
+
+// We don't want schema digest to change between Scylla versions because that results in a schema disagreement
+// during rolling upgrade.
+SEASTAR_TEST_CASE(test_schema_digest_does_not_change) {
+    using namespace db;
+    using namespace db::schema_tables;
+
+    auto tmp = tmpdir();
+    const bool regenerate = false;
+
+    sstring data_dir = "./tests/sstables/schema_digest_test";
+
+    db::config db_cfg;
+    if (regenerate) {
+        db_cfg.data_file_directories({data_dir}, db::config::config_source::CommandLine);
+    } else {
+        fs::copy(std::string(data_dir), std::string(tmp.path().string()), fs::copy_options::recursive);
+        db_cfg.data_file_directories({tmp.path().string()}, db::config::config_source::CommandLine);
+    }
+
+    return do_with_cql_env_thread([regenerate](cql_test_env& e) {
+        if (regenerate) {
+            // Exercise many different kinds of schema changes.
+            e.execute_cql(
+                "create keyspace tests with replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };").get();
+            e.execute_cql("create table tests.table1 (pk int primary key, c1 int, c2 int);").get();
+            e.execute_cql("create type tests.basic_info (c1 timestamp, v2 text);").get();
+            e.execute_cql("create index on tests.table1 (c1);").get();
+            e.execute_cql("create table ks.tbl (a int, b int, c float, PRIMARY KEY (a))").get();
+            e.execute_cql(
+                "create materialized view ks.tbl_view AS SELECT c FROM ks.tbl WHERE c IS NOT NULL PRIMARY KEY (c, a)").get();
+            e.execute_cql(
+                "create materialized view ks.tbl_view_2 AS SELECT a FROM ks.tbl WHERE a IS NOT NULL PRIMARY KEY (a)").get();
+            e.execute_cql(
+                "create keyspace tests2 with replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };").get();
+            e.execute_cql("drop keyspace tests2;").get();
+        }
+
+        auto expect_digest = [&] (schema_features sf, utils::UUID expected) {
+            auto actual = calculate_schema_digest(service::get_storage_proxy(), sf).get0();
+            if (regenerate) {
+                std::cout << "Digest is " << actual << "\n";
+            } else {
+                BOOST_REQUIRE_EQUAL(actual, expected);
+            }
+        };
+
+        auto expect_version = [&] (sstring ks_name, sstring cf_name, utils::UUID expected) {
+            auto actual = e.local_db().find_column_family(ks_name, cf_name).schema()->version();
+            if (regenerate) {
+                std::cout << "Version of " << ks_name << "." << cf_name << " is " << actual << "\n";
+            } else {
+                BOOST_REQUIRE_EQUAL(actual, expected);
+            }
+        };
+
+        schema_features sf = schema_features::of<schema_feature::DIGEST_INSENSITIVE_TO_EXPIRY>();
+
+        expect_digest(sf, utils::UUID("492719e5-0169-30b1-a15e-3447674c0c0c"));
+
+        sf.set<schema_feature::VIEW_VIRTUAL_COLUMNS>();
+        expect_digest(sf, utils::UUID("be3c0af4-417f-31d5-8e0e-4ac257ec00ad"));
+
+        expect_digest(schema_features::full(), utils::UUID("be3c0af4-417f-31d5-8e0e-4ac257ec00ad"));
+
+        // Causes tombstones to become expired
+        // This is in order to test that schema disagreement doesn't form due to expired tombstones being collected
+        // Refs https://github.com/scylladb/scylla/issues/4485
+        forward_jump_clocks(std::chrono::seconds(60*60*24*31));
+
+        expect_digest(schema_features::full(), utils::UUID("be3c0af4-417f-31d5-8e0e-4ac257ec00ad"));
+
+        // FIXME: schema_mutations::digest() is still sensitive to expiry, so we can check versions only after forward_jump_clocks()
+        // otherwise the results would not be stable.
+        expect_version("tests", "table1", utils::UUID("4198e26c-f214-3888-9c49-c396eb01b8d7"));
+        expect_version("ks", "tbl", utils::UUID("5c9cadec-e5df-357e-81d0-0261530af64b"));
+        expect_version("ks", "tbl_view", utils::UUID("1d91ad22-ea7c-3e7f-9557-87f0f3bb94d7"));
+        expect_version("ks", "tbl_view_2", utils::UUID("2dcd4a37-cbb5-399b-b3c9-8eb1398b096b"));
+    }, db_cfg).then([tmp = std::move(tmp)] {});
+}

tests/sstable_3_x_test.cc

@@ -3676,6 +3676,32 @@ SEASTAR_THREAD_TEST_CASE(test_write_missing_columns_large_set) {
     validate_stats_metadata(s, written_sst, table_name);
 }
 
+SEASTAR_THREAD_TEST_CASE(test_write_empty_counter) {
+    auto abj = defer([] { await_background_jobs().get(); });
+    sstring table_name = "empty_counter";
+    // CREATE TABLE empty_counter (pk text, ck text, val counter, PRIMARY KEY (pk, ck)) WITH compression = {'sstable_compression': ''};
+    schema_builder builder("sst3", table_name);
+    builder.with_column("pk", utf8_type, column_kind::partition_key);
+    builder.with_column("ck", utf8_type, column_kind::clustering_key);
+    builder.with_column("val", counter_type);
+    builder.set_compressor_params(compression_parameters::no_compression());
+    schema_ptr s = builder.build(schema_builder::compact_storage::no);
+
+    lw_shared_ptr<memtable> mt = make_lw_shared<memtable>(s);
+    auto key = partition_key::from_exploded(*s, {to_bytes("key")});
+    mutation mut{s, key};
+
+    const column_definition& cdef = *s->get_column_definition("val");
+    auto ckey = clustering_key::from_exploded(*s, {to_bytes("ck")});
+
+    counter_cell_builder b;
+    mut.set_clustered_cell(ckey, cdef, b.build(write_timestamp));
+
+    mt->apply(mut);
+    tmpdir tmp = write_and_compare_sstables(s, mt, table_name);
+    validate_read(s, tmp.path(), {mut});
+}
+
 SEASTAR_THREAD_TEST_CASE(test_write_counter_table) {
     auto abj = defer([] { await_background_jobs().get(); });
     sstring table_name = "counter_table";

tests/sstables/3.x/uncompressed/write_empty_counter/mc-1-big-Digest.crc32

@@ -0,0 +1 @@
+4022779186

tests/sstables/3.x/uncompressed/write_empty_counter/mc-1-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CRC.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db

tests/sstables/schema_digest_test/system/IndexInfo-9f5c6374d48532299a0a5094af9ad1e3/mc-1-big-Digest.crc32

@@ -0,0 +1 @@
+1212887992

tests/sstables/schema_digest_test/system/IndexInfo-9f5c6374d48532299a0a5094af9ad1e3/mc-1-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CompressionInfo.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db

tests/sstables/schema_digest_test/system/built_views-4b3c50a9ea873d7691016dbc9c38494a/mc-1-big-Digest.crc32

@@ -0,0 +1 @@
+656138629

tests/sstables/schema_digest_test/system/built_views-4b3c50a9ea873d7691016dbc9c38494a/mc-1-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CompressionInfo.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db

tests/sstables/schema_digest_test/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/mc-1-big-Digest.crc32

@@ -0,0 +1 @@
+652552477

tests/sstables/schema_digest_test/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/mc-1-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CompressionInfo.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db

tests/sstables/schema_digest_test/system/local-7ad54392bcdd35a684174e047860b377/mc-7-big-Digest.crc32

@@ -0,0 +1 @@
+2059996906

tests/sstables/schema_digest_test/system/local-7ad54392bcdd35a684174e047860b377/mc-7-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CompressionInfo.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db

tests/sstables/schema_digest_test/system/local-7ad54392bcdd35a684174e047860b377/mc-8-big-Digest.crc32

@@ -0,0 +1 @@
+1163745904

tests/sstables/schema_digest_test/system/local-7ad54392bcdd35a684174e047860b377/mc-8-big-TOC.txt

@@ -0,0 +1,9 @@
+Scylla.db
+CompressionInfo.db
+Filter.db
+Statistics.db
+TOC.txt
+Digest.crc32
+Index.db
+Summary.db
+Data.db