Commit Graph

13602 Commits

Author SHA1 Message Date
Tomasz Grabiec
a790b8cd20 Merge "Remove sstable::read_rows" from Piotr
* seastar-dev.git haaawk/flat_reader_remove_read_rows:
  sstable_mutation_test: use read_rows_flat instead of read_rows
  perf_sstable: use read_rows_flat instead of read_rows
  Remove sstable::read_rows

(cherry picked from commit e9ffe36d65)
2017-11-22 16:11:31 +01:00
Tomasz Grabiec
a10ea80a63 Merge "Migrate sstables to flat_mutation_reader" from Piotr
Introduce sstable::read_row_flat and sstable::read_range_rows_flat methods
and use them in sstable::as_mutation_source.

* https://github.com/scylladb/seastar-dev/tree/haaawk/flat_reader_sstables_v3:
  Introduce conversion from flat_mutation_reader to streamed_mutation
  Add sstables::read_rows_flat and sstables::read_range_rows_flat
  Turn sstable_mutation_reader into a flat_mutation_reader
  sstable: add getter for filter_tracker
  Move mp_row_consumer methods implementations to the bottom
  Remove unused sstable_mutation_reader constructor
  Replace "sm" with "partition" in get_next_sm and on_sm_finished
  Move advance_to_upper_bound above sstable_mutation_reader
  Store sstable_mutation_reader pointer in mp_row_consumer
  Stop using streamed_mutation in consumer and reader
  Stop using streamed_mutation in sstable_data_source
  Delete sstable_streamed_mutation
  Introduce sstable::read_row_flat
  Migrate sstable::as_mutation_source to flat_mutation_reader
  Remove single_partition_reader_adaptor
  Merge data_consume_context::impl into data_consume_context
  Create data_consume_context_opt.
  Merge on_partition_finished into mark_partition_finished
  Check _partition_finished instead of _current_partition_key
  Merge sstable_data_source into sstable_mutation_reader
  Remove sstable_data_source
  Remove get_next_partition and partition_header

(cherry picked from commit aa8c2cbc16)
2017-11-22 15:49:22 +01:00
Takuya ASADA
91a5c9d20c dist/redhat: avoid hardcoding GPG key file path on scylla-epel-7-x86_64.cfg
Since we want to support cross building, we shouldn't hardcode GPG file path,
even these files provided on recent version of mock.

This fixes build error on some older build environment such as CentOS-7.2.

Fixes #3002

Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1511277722-22917-1-git-send-email-syuu@scylladb.com>
(cherry picked from commit c1b97d11ea)
2017-11-21 17:26:53 +02:00
Takuya ASADA
f846b897bf configure.py: suppress 'nonnull-compare' warning on antlr3
We get following warning from antlr3 header when we compile Scylla with gcc-7.2:
/opt/scylladb/include/antlr3bitset.inl: In member function 'antlr3::BitsetList<AllocatorType>::BitsetType* antlr3::BitsetList<AllocatorType>::bitsetLoad() [with ImplTraits = antlr3::TraitsBase<antlr3::CustomTraitsBase>]':
/opt/scylladb/include/antlr3bitset.inl:54:2: error: nonnull argument 'this' compared to NULL [-Werror=nonnull-compare]

To make it compilable we need to specify '-Wno-nonnull-compare' on cflags.

Message-Id: <1510952411-20722-2-git-send-email-syuu@scylladb.com>
(cherry picked from commit f26cde582f)
2017-11-21 17:26:53 +02:00
Takuya ASADA
8d7c34bf68 dist/debian: switch Debian 3rdparty packages to external build service
Switch Debian 3rdparty packages to our OBS repo
(https://build.opensuse.org/project/subprojects/home:scylladb).

We don't use 3rdparty packages on dist/debian/dep, so dropped them.
Also we switch Debian to gcc-7.2/boost-1.63 on same time.

Due to packaging issues following packages doesn't renamed our 3rdparty
package naming rule for now:
 - gcc-7: renamed as 'xxx-scylla72', instead of scylla-xxx-72.
 - boost1.63: doesn't renamed, also doesn't changed prefix to /opt/scylladb

Message-Id: <1510952411-20722-1-git-send-email-syuu@scylladb.com>
(cherry picked from commit ab9d7cdc65)
2017-11-21 17:26:53 +02:00
Duarte Nunes
7449586a26 thrift/server: Handle exception within gate
The exception handling code inspects server state, which could be
destroyed before the handle_exception() task runs since it runs after
exiting the gate. Move the exception handling inside the gate and
avoid scheduling another accept if the server has been stopped.

Signed-off-by: Duarte Nunes <duarte@scylladb.com>
Message-Id: <20171116122921.21273-1-duarte@scylladb.com>
(cherry picked from commit 34a0b85982)
2017-11-21 15:52:38 +02:00
Daniel Fiala
b601b9f078 utils/big_decimal: Fix compilation issue with converion of cpp_int to uint64_t.
Signed-off-by: Daniel Fiala <daniel@scylladb.com>
Message-Id: <20171121134854.16278-1-daniel@scylladb.com>
(cherry picked from commit 21ea05ada1)
2017-11-21 15:52:01 +02:00
Tomasz Grabiec
1ec81cda37 Merge "Convert queries to flat mutation readers" from Paweł
These patches convert queries (data, mutation and counter) to flat
mutation readers. All of them already use consume_flattened() to
consume a flat stream of data, so the only major missing thing
 was adding support for reversed partitions to
flat_mutation_reader::consume().

* pdziepak flat_mutation_reader-queries/v3-rebased:
  flat_mutation_reader: keep reference to decorated key valid
  flat_muation_reader: support consuming reversed partitions
  tests/flat_mutation_reader: add test for
    flat_mutation_reader::consume()
  mutation_partition: convert queries to flat_mutation_readers
  tests/row_cache_stress_test: do not use consume_flattened()
  mutation_reader: drop consume_flattened()
  streamed_mutation: drop reverse_streamed_mutation()

(cherry picked from commit 6969a235f3)
2017-11-21 12:58:41 +01:00
Paweł Dziepak
e87a2bc9c0 streamed_mutation: make emit_range_tombstone() exception safe
For a time range tombstone that was already removed from a tree
is owned by a raw pointer. This doesn't end well if creation of
a mutation fragment or a call to push_mutation_fragment() throw.
Message-Id: <20171121105749.16559-1-pdziepak@scylladb.com>

(cherry picked from commit 1b936876b7)
2017-11-21 12:35:47 +01:00
Tomasz Grabiec
b84d13d325 Merge "Fix reversed queries with range tombstones" from Paweł
This series reworks handling of range tombstones in reversed queries
so that they are applied to correct rows. Additionally, the concept
of flipped range tombstones is removed, since it only made it harder
to reason about the code.

Fixes #2982.

* https://github.com/pdziepak/scylla fix-reverse-query-range-tombstone/v2:
  streamed_mutation: fix reversing range tombstones
  range_tombstone: drop flip()
  tests/cql_query_test: test range tombstones and reverse queries
  tests/range_tombstone_list: add test for range_tombstone_accumulator

(cherry picked from commit cec5b0a5b8)
2017-11-21 12:35:37 +01:00
Botond Dénes
b5abf6541d Add fast-forwarding with no data test to mutation_source_test
Signed-off-by: Botond Dénes <bdenes@scylladb.com>
Message-Id: <9cb630bf9441e178b2040709f92767d4a740a875.1511180262.git.bdenes@scylladb.com>
(cherry picked from commit f059e71056)
2017-11-21 12:34:46 +01:00
Botond Dénes
8cf869cb37 flat_mutation_reader_assertions: add fast_forward_to(position_range)
Signed-off-by: Botond Dénes <bdenes@scylladb.com>
Message-Id: <7b530909cf188887377aec3985f9f8c0e3b9b1e8.1511180262.git.bdenes@scylladb.com>
(cherry picked from commit a1a0d445d6)
2017-11-21 12:34:43 +01:00
Botond Dénes
df509761b0 flat_mutation_reader_from_mutation_reader(): make ff more resilient
Currently flat_mutation_reader_from_mutation_reader()'s
converting_reader will throw std::runtime_error if fast_forward_to() is
called when its internal streamed_mutation_opt is disengaged. This can
create problems if this reader is a sub-reader of a combined reader as the
latter has no way to determine the source of a sub-reader EOS. A reader
can be in EOS either because it reached the end of the current
position_range or because it doesn't have any more data.
To avoid this, instead of throwing we just silently ignore the fact that
the streamed_mutation_opt is disengaged and set _end_of_stream to true
which is still correct.

Signed-off-by: Botond Dénes <bdenes@scylladb.com>
Message-Id: <83d309b225950bdbbd931f1c5e7fb91c9929ba1c.1511180262.git.bdenes@scylladb.com>
(cherry picked from commit 8065dca4a1)
2017-11-21 12:34:40 +01:00
Vlad Zolotarov
b90e11264e cql_transport::cql_server: fix the distributed prepared statements cache population
Don't std::move() the "query" string inside the parallel_for_each() lambda.
parallel_for_each is going to invoke the given callback object for each element of the range
and as a result the first call of lambda that std::move()s the "query" is going to destroy it for
all other calls.

Fixes #2998

Signed-off-by: Vlad Zolotarov <vladz@scylladb.com>
Message-Id: <1511225744-1159-1-git-send-email-vladz@scylladb.com>
(cherry picked from commit 941aa20252)
2017-11-21 10:53:50 +02:00
Shlomi Livne
84b2bff0a6 release: prepare for 2.1.rc0
Signed-off-by: Shlomi Livne <shlomi@scylladb.com>
2017-11-19 18:53:20 +02:00
Tomasz Grabiec
2113299b61 sstables: index_reader: Reset lower bound for promoted index lookups from advance_to_next_partition()
_current_pi_idx was not reset from advance_to_next_partition(), which
is used when we skip to the next partition before fully consuming
it. As a result, if we try to skip to a clustering position which is
before the index block used by the last skip in the previous
partition, we would not skip assuming that the new position is in the
current block. This may result in more data being read from the
sstable than necessary.

Fixes #2984
Message-Id: <1510915793-20159-1-git-send-email-tgrabiec@scylladb.com>
2017-11-17 11:00:26 +00:00
Avi Kivity
6950389a3f Update seastar submodule
* seastar 11ad0b1...78cd87f (3):
  > Merge "http: Use output stream for files" from Amnon
  > tutorial: a section about when_all() and when_all_succeed()
  > Merge "Power8 related changes (what's left of them)" from Vlad
2017-11-16 16:31:46 +02:00
Avi Kivity
f18b3928d0 Merge 2017-11-16 14:55:45 +02:00
Avi Kivity
beffe469af index_entry: add move constructor, assigment operators
As can be seen in one of the traces in #2958, the copy constructor
of index_entry is called in response to std::vector<index_entry>::push_back(index_entry&&).

This is wasteful. Fix by providing the full suite of constructors/assignment operators.
Message-Id: <20171116121608.5580-1-avi@scylladb.com>
2017-11-16 13:54:05 +01:00
Avi Kivity
bbcfc57cb4 Merge "Free auth and its use from global variables" from Jesse
"This patch series addresses #2929. The objective is to eliminate global
state from the implementation and use of all access-control functionlity.

I've made every effort to make these patches logically independent and
incremental, but the final patch is big: this was necessary because
eliminating the global instances themselves is an atomic change."

* 'jhk/non_global_auth/v2' of https://github.com/hakuch/scylla:
  auth: Switch to sharded service
  tracing/trace_keyspace_helper: Use internal `client_state`
  auth: Make the QP an explicit dependency
  auth: Unify Java class name attributes
  auth: Make life-time control more consistent
  auth: Move metadata constants
  auth: Don't expose internal constant
  auth: Extract `permissions_cache`
  utils/loading_cache: Include necessary dependency
  auth: Fix static constant initialization
  auth: Extract `delayed_tasks` from `auth.cc`
2017-11-16 14:52:34 +02:00
Jesse Haber-Kucharsky
ba6a41d397 auth: Switch to sharded service
This change appears quite large, but is logically fairly simple.

Previously, the `auth` module was structured around global state in a
number of ways:

- There existed global instances for the authenticator and the
  authorizer, which were accessed pervasively throughout the system
  through `auth::authenticator::get()` and `auth::authorizer::get()`,
  respectively. These instances needed to be initialized before they
  could be used with `auth::authenticator::setup(sstring type_name)`
  and `auth::authorizer::setup(sstring type_name)`.

- The implementation of the `auth::auth` functions and the authenticator
  and authorizer depended on resources accessed globally through
  `cql3::get_local_query_processor()` and
  `service::get_local_migration_manager()`.

- CQL statements would check for access and manage users through static
  functions in `auth::auth`. These functions would access the global
  authenticator and authorizer instances and depended on the necessary
  systems being started before they were used.

This change eliminates global state from all of these.

The specific changes are:

- Move out `allow_all_authenticator` and `allow_all_authorizer` into
  their own files so that they're constructed like any other
  authenticator or authorizer.

- Delete `auth.hh` and `auth.cc`. Constants and helper functions useful
  for implementing functionality in the `auth` module have moved to
  `common.hh`.

- Remove silent global dependency in
  `auth::authenticated_user::is_super()` on the auth* service in favour
  of a new function `auth::is_super_user()` with an explicit auth*
  service argument.

- Remove global authenticator and authorizer instances, as well as the
  `setup()` functions.

- Expose dependency on the auth* service in
  `auth::authorizer::authorize()` and `auth::authorizer::list()`, which
  is necessary to check for superuser status.

- Add an explicit `service::migration_manager` argument to the
  authenticators and authorizers so they can announce metadata tables.

- The permissions cache now requires an auth* service reference instead
  of just an authorizer since authorizing also requires this.

- The permissions cache configuration can now easily be created from the
  DB configuration.

- Move the static functions in `auth::auth` to the new `auth::service`.
  Where possible, previously static resources like the `delayed_tasks`
  are now members.

- Validating `cql3::user_options` requires an authenticator, which was
  previously accessed globally.

- Instances of the auth* service are accessed through `external`
  instances of `client_state` instead of globally. This includes several
  CQL statements including `alter_user_statement`,
  `create_user_statement`, `drop_user_statement`, `grant_statement`,
  `list_permissions_statement`, `permissions_altering_statement`, and
  `revoke_statement`. For `internal` `client_state`, this is `nullptr`.

- Since the `cql_server` is responsible for instantiating connections
  and each connection gets a new `client_state`, the `cql_server` is
  instantiated with a reference to the auth* service.

- Similarly, the Thrift server is now also instantiated with a reference
  to the auth* service.

- Since the storage service is responsible for instantiating and
  starting the sharded servers, it is instantiated with the sharded
  auth* service which it threads through. All relevant factory functions
  have been updated.

- The storage service is still responsible for starting the auth*
  service it has been provided, and shutting it down.

- The `cql_test_env` is now instantiated with an instance of the auth*
  service, and can be accessed through a member function.

- All unit tests have been updated and pass.

Fixes #2929.
2017-11-15 23:22:42 -05:00
Jesse Haber-Kucharsky
1dd181bd7b tracing/trace_keyspace_helper: Use internal client_state 2017-11-15 23:19:18 -05:00
Jesse Haber-Kucharsky
41612ee577 auth: Make the QP an explicit dependency
Rather than have all uses of the QP in auth reference global variables,
we supply a QP reference to both the authenticator and authorizer on
construction.

The caller still references a global variable when constructing the
instances, but fixing this problem is a much larger task that is out of
scope of this change.
2017-11-15 23:19:13 -05:00
Jesse Haber-Kucharsky
157e22a4f0 auth: Unify Java class name attributes 2017-11-15 23:19:00 -05:00
Jesse Haber-Kucharsky
9aff5d9a77 auth: Make life-time control more consistent 2017-11-15 23:18:44 -05:00
Jesse Haber-Kucharsky
5825e37310 auth: Move metadata constants
This change is motivated partly be aesthetics, but more significantly
due to the future work to refactor `auth` into a sharded service. Since
doing so will require writing `auth::auth` from scratch, these
constants (and other common functionality) need a new home.
2017-11-15 23:18:42 -05:00
Jesse Haber-Kucharsky
22670cae82 auth: Don't expose internal constant 2017-11-15 23:17:52 -05:00
Jesse Haber-Kucharsky
20b7f92b9c auth: Extract permissions_cache
In addition to improving clarity, this makes the cache testable.

There shouldn't be any functional changes.
2017-11-15 23:17:41 -05:00
Jesse Haber-Kucharsky
6f4241574c utils/loading_cache: Include necessary dependency 2017-11-15 23:17:05 -05:00
Jesse Haber-Kucharsky
5c39a2cc15 auth: Fix static constant initialization
Using "Meyer's singletons" eliminate the problem of static constant
initialization order because static variables inside functions are
initialized only the first time control flow passes over their
declaration.

Fixes #2966.
2017-11-15 23:16:52 -05:00
Jesse Haber-Kucharsky
507e1ef8d5 auth: Extract delayed_tasks from auth.cc
This simple task scheduler is used by the auth module to delay metadata
creation until the system is settled.

Extracting it out allows the `auth` module to be refactored into a
sharded service and for other components of `auth` to make use of it.

Fixes #2965.
2017-11-15 23:16:46 -05:00
Botond Dénes
7f60fb19b4 flat_mutation_reader::fast_forward_buffer_to: remove schema parameter
e7a0732f72 added the schema to
flat_mutation_reader::impl so the schema doesn't need to be provided
externally anymore.

Signed-off-by: Botond Dénes <bdenes@scylladb.com>
Message-Id: <04933512d3485d85629a9945b8ecb211aa2aab50.1510732121.git.bdenes@scylladb.com>
2017-11-15 10:40:02 +01:00
Tomasz Grabiec
a061be688d Merge "Prepare sstables read path for flat_mutation_reader" from Piotr
This patchset prepares sstables read path for flat_mutation_reader.
It cuts some dependencies between classes and replaces
sstables::mutation_reader with ::mutation_reader.  This will make it
possible to gradually convert the code to flat_mutation_reader because
we have converters between flat_mutation_reader and ::mutation_reader.

* seastar-dev.git haaawk/flat_reader_prepare_sstables_rebased
  Reduce dependencies from mp_row_consumer to sstable_streamed_mutation
  Replace sstables::mutation_reader with ::mutation_reader
  Remove range_reader_adaptor
  Remove sstable_range_wrapping_reader
2017-11-15 10:40:02 +01:00
Piotr Jastrzebski
6cd4b6b09c Remove sstable_range_wrapping_reader
The wrapper is no longer needed because
read_range_rows returns ::mutation_reader instead of
sstables::mutation_reader and the reader returned from
it keeps the pointer to shared_sstable that was used to
create the reader.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2017-11-15 10:40:02 +01:00
Piotr Jastrzebski
6d85e4fb0c Remove range_reader_adaptor
The wrapper is no longer needed because
read_range_rows returns ::mutation_reader instead of
sstables::mutation_reader and the reader returned from
it keeps the pointer to shared_sstable that was used to
create the reader.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2017-11-15 10:40:02 +01:00
Piotr Jastrzebski
ea449c9cce Replace sstables::mutation_reader with ::mutation_reader
This will make migration to flat_mutation_reader much
easier and sstables::mutation_reader is going away with
this migration anyway.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2017-11-15 10:40:01 +01:00
Piotr Jastrzebski
228f0737f4 Reduce dependencies from mp_row_consumer to sstable_streamed_mutation
Before this patch mp_row_consumer was using sstable_streamed_mutation
in two ways:

1. Populate sstable_streamed_mutation's buffer with mutation_fragments
2. Advance sstable_streamed_mutation's sstable_data_source to new position.

We can easily reduce those dependencies only to the first one.
This will reduce the coupling between those classes and simplify
the flow of execution.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2017-11-15 10:40:01 +01:00
Takuya ASADA
07c191af41 dist/common/scripts/scylla_dev_mode_setup: include scylla_lib.sh
To use verify_args function we requires scylla_lib.sh, so include it.

Fixes #2945

Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1510154173-18017-1-git-send-email-syuu@scylladb.com>
2017-11-15 11:31:14 +02:00
Avi Kivity
7caf3a543e Merge "Respect size-tiered options in strategies that rely on its functionality" from Raphael
"Otherwise, such strategies couldn't behave as expected when it needs to do STCS."

* 'respecting_stcs_options_v2' of github.com:raphaelsc/scylla:
  tests: enable twcs test that relied on size-tiered properties
  twcs: respect stcs options by forwarding them to stcs method
  lcs: forward stcs options to respect them
  stcs: make most_interesting_bucket respect size-tiered options
  stcs: make most_interesting_bucket respect thresholds
  compaction: make size_tiered_most_interesting_bucket static method of stcs class
  stcs: introduce new ctor
  stcs: make header self contained
  stcs: inline function definition so as not to break one definition rule
2017-11-14 17:57:57 +02:00
Raphael S. Carvalho
1f478d5daa tests: enable twcs test that relied on size-tiered properties
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:27:27 -02:00
Raphael S. Carvalho
8165af1d08 twcs: respect stcs options by forwarding them to stcs method
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:27:27 -02:00
Raphael S. Carvalho
9cdc047a4c lcs: forward stcs options to respect them
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:27:27 -02:00
Raphael S. Carvalho
2b7f87474b stcs: make most_interesting_bucket respect size-tiered options
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:27:25 -02:00
Raphael S. Carvalho
d8ec913c34 stcs: make most_interesting_bucket respect thresholds
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:26:04 -02:00
Raphael S. Carvalho
cb6d060d8e compaction: make size_tiered_most_interesting_bucket static method of stcs class
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:24:03 -02:00
Raphael S. Carvalho
b69dbf8b99 stcs: introduce new ctor
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2017-11-14 13:21:59 -02:00
Avi Kivity
0dc888f963 Merge 2017-11-14 15:59:52 +02:00
Tomasz Grabiec
7323fe76db gossiper: Replicate endpoint_state::is_alive()
Broken in f570e41d18.

Not replicating this may cause coordinator to treat a node which is
down as alive, or vice verse.

Fixes regression in dtest:

  consistency_test.py:TestAvailability.test_simple_strategy

which was expected to get "unavailable" exception but it was getting a
timeout.

Message-Id: <1510666967-1288-1-git-send-email-tgrabiec@scylladb.com>
2017-11-14 15:58:00 +02:00
Vlad Zolotarov
c6c41aa877 tests: loading_cache_test: make it more robust
Make sure loading_cache::stop() is always called where appropriate:
regardless whether the test failed or there was an exception during the test.
Otherwise a false-alarm use-after-free error may occur.

Fixes #2955

Signed-off-by: Vlad Zolotarov <vladz@scylladb.com>
Message-Id: <1510625736-3109-1-git-send-email-vladz@scylladb.com>
2017-11-14 11:35:49 +00:00
Avi Kivity
09e730f9f2 Merge "Fix bugs in cache related to handling of bad_alloc" from Tomasz
"Fixes #2944."

* tag 'tgrabiec/cache-exception-safety-fixes-v2' of github.com:scylladb/seastar-dev:
  tests: row_cache: Add test for exception safety of multi-partition scans
  tests: row_cache: Add test for exception safety of single-partition reads
  tests: mutation_source_tests: Always print the seed
  tests: Disable alloc failure injection in test assertions
  tests: Avoid needless copies
  row_cache: Fix exception safety of cache_entry::read()
  row_cache: scanning_and_populating_reader: Fix exception unsafety causing read to skip data
  row_cache: partition_range_cursor: Extract valid() and advance_to() from refresh()
  cache_streamed_mutation: Add trace-level logging to cache_streamed_mutation
  mvcc: Lift noexcept off partition_snapshot_row_weakref assignment/constructors
  cache_streamed_mutation: Make advancing to the next range exception-safe
  cache_streamed_mutation: Make add_clustering_row_to_buffer() exception-safe
  cache_streamed_mutation: Make drain_tombstones() exception-safe
  cache_streamed_mutation: Return void from start_reading_from_underlying()
  cache_streamed_mutation: Document invariants related to exception-safety
  streamed_mutation: Add reserve_one()
  lsa: Guarantee invalidated references on allocating section retry
  mvcc: partition_snapshot_row_cursor: Mark allocation points
2017-11-14 11:42:13 +02:00