Commit Graph

43740 Commits

Author SHA1 Message Date
Asias He
9fdc596ff7 test: Add test_node_ops_metrics.py
It tests the node_ops_metrics_done metric reaches 100% when a node ops
is done.

Refs: #21174
(cherry picked from commit 9868ccbac0)
2024-10-28 09:54:30 +00:00
Asias He
5a2196b94a repair: Make the ranges more consistent in the log
Consider the number of tables for the number of ranges logging. Make it
more consistent with the log when the ops starts.

(cherry picked from commit 1392a6068d)
2024-10-28 09:54:30 +00:00
Asias He
34cb594dd5 repair: Fix finished ranges metrics for removenode
The skipped ranges should be multiplied by the number of tables.

Otherwise the finished ranges ratio will not reach 100%.

Fixes #21174

(cherry picked from commit cffe3dc49f)
2024-10-28 09:54:30 +00:00
Lakshmi Narayanan Sreethar
91c693bf93 [Backport 6.1] replica/table: check memtable before discarding tombstone during read
On the read path, the compacting reader is applied only to the sstable
reader. This can cause an expired tombstone from an sstable to be purged
from the request before it has a chance to merge with deleted data in
the memtable leading to data resurrection.

Fix this by checking the memtables before deciding to purge tombstones
from the request on the read path. A tombstone will not be purged if a
key exists in any of the table's memtables with a minimum live timestamp
that is lower than the maximum purgeable timestamp.

Fixes #20916

`perf-simple-query` stats before and after this fix :

`build/Dev/scylla perf-simple-query --smp=1 --flush` :
```
// Before this Fix
// ---------------
94941.79 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59393 insns/op,   24029 cycles/op,        0 errors)
97551.14 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59376 insns/op,   23966 cycles/op,        0 errors)
96599.92 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59367 insns/op,   23998 cycles/op,        0 errors)
97774.91 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59370 insns/op,   23968 cycles/op,        0 errors)
97796.13 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59368 insns/op,   23947 cycles/op,        0 errors)

         throughput: mean=96932.78 standard-deviation=1215.71 median=97551.14 median-absolute-deviation=842.13 maximum=97796.13 minimum=94941.79
instructions_per_op: mean=59374.78 standard-deviation=10.78 median=59369.59 median-absolute-deviation=6.36 maximum=59393.12 minimum=59367.02
  cpu_cycles_per_op: mean=23981.67 standard-deviation=32.29 median=23967.76 median-absolute-deviation=16.33 maximum=24029.38 minimum=23947.19

// After this Fix
// --------------
95313.53 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59392 insns/op,   24058 cycles/op,        0 errors)
97311.48 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59375 insns/op,   24005 cycles/op,        0 errors)
98043.10 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59381 insns/op,   23941 cycles/op,        0 errors)
96750.31 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59396 insns/op,   24025 cycles/op,        0 errors)
93381.21 tps ( 71.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   59390 insns/op,   24097 cycles/op,        0 errors)

         throughput: mean=96159.93 standard-deviation=1847.88 median=96750.31 median-absolute-deviation=1151.55 maximum=98043.10 minimum=93381.21
instructions_per_op: mean=59386.60 standard-deviation=8.78 median=59389.55 median-absolute-deviation=6.02 maximum=59396.40 minimum=59374.73
  cpu_cycles_per_op: mean=24025.13 standard-deviation=58.39 median=24025.17 median-absolute-deviation=32.67 maximum=24096.66 minimum=23941.22
```

This PR fixes a regression introduced in ce96b472d3 and should be backported to older versions.

Closes scylladb/scylladb#20985

* github.com:scylladb/scylladb:
  topology-custom: add test to verify tombstone gc in read path
  replica/table: check memtable before discarding tombstone during read
  compaction_group: track maximum timestamp across all sstables

(cherry picked from commit 519e167611)

Backported from #20985 to 6.1.

Signed-off-by: Lakshmi Narayanan Sreethar <lakshmi.sreethar@scylladb.com>

Closes scylladb/scylladb#21250
scylla-6.1.3 scylla-6.1.3-candidate-20241028103030
2024-10-25 11:13:54 +03:00
Piotr Dulikowski
77f0533a01 SCYLLA-VERSION-GEN: correct the logic for skipping SCYLLA-*-FILE
The SCYLLA-VERSION-GEN file skips updating the SCYLLA-*-FILE files if
the commit hash from SCYLLA-RELEASE-FILE is the same. The original
reason for this was to prevent the date in the version string from
changing if multiple modes are built across midnight
(scylladb/scylla-pkg#826). However - intentionally or not - it serves
another purpose: it prevents an infinite loop in the build process.

If the build.ninja file needs to be rebuilt, the configure.py script
unconditionally calls ./SCYLLA-VERSION-GEN. On the other hand, if one
of the SCYLLA-*-FILE files is updated then this triggers rebuild
of build.ninja. Apparently, this is sufficient for ninja to enter an
infinite loop.

However, the check assumes that the RELEASE is in the format

  <build identifier>.<date>.<commit hash>

and assumes that none of the components have a dot inside - otherwise it
breaks and just works incorrectly. Specifically, when building a private
version, it is recommended to set the build identifier to
`count.yourname`.

Previously, before 85219e9, this problem wasn't noticed most likely
because reconfigure process was broken and stopped overwriting
the build.ninja file after the first iteration.

Fix the problem by fixing the logic that extracts the commit hash -
instead of looking at the third dot-separated field counting from the
left side, look at the last field.

Fixes: scylladb/scylladb#21027
(cherry picked from commit 64ca58125e)

Closes scylladb/scylladb#21104
2024-10-25 11:09:51 +03:00
Benny Halevy
145230e032 storage_service: rebuild: warn about tablets-enabled keyspaces
Until we automatically support rebuild for tablets-enabled
keyspaces, warn the user about them.

The reason this is not an error, is that after
increasing RF in a new datacenter, the current procedure
is to run `nodetool rebuild` on all nodes in that dc
to rebuild the new vnode replicas.
This is not required for tablets, since the additional
replicas are rebuilt automatically as part of ALTER KS.

However, `nodetool rebuild` is also run after local
data loss (e.g. due to corruption and removal of sstables).
In this case, rebuild is not supported for tablets-enabled
keyspaces, as tablet replicas that had lost data may have
already been migrated to other nodes, and rebuilding the
requested node will not know about it.
It is advised to repair all nodes in the datacenter instead.

Refs scylladb/scylladb#17575

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit ed1e9a1543)

Closes scylladb/scylladb#20723
2024-10-25 11:06:38 +03:00
Tomasz Grabiec
39c1a448f6 Merge '[Backport 6.1] replica: Fix tombstone GC during tablet split preparation' from Raphael Raph Carvalho
During split prepare phase, there will be more than 1 compaction group with
overlapping token range for a given replica.

Assume tablet 1 has sstable A containing deleted data, and sstable B containing
a tombstone that shadows data in A.

Then split starts:

sstable B is split first, and moved from main (unsplit) group to a
split-ready group
now compaction runs in split-ready group before sstable A is split
tombstone GC logic today only looks at underlying group, so compaction is step
2 will discard the deleted data in A, since it belongs to another group (the
unsplit one), and so the tombstone can be purged incorrectly.

To fix it, compaction will now work with all uncompacting sstables that belong
to the same replica, since tombstone GC requires all sstables that possibly
contain shadowed data to be available for correct decision to be made.

Fixes https://github.com/scylladb/scylladb/issues/20044.

Please replace this line with justification for the backport/* labels added to this PR
Branches 6.0, 6.1 and 6.2 are vulnerable, so backport is needed.

(cherry picked from commit bcd358595f)

(cherry picked from commit 93815e0649)

Refs https://github.com/scylladb/scylladb/pull/20939

Closes scylladb/scylladb#21205

* github.com:scylladb/scylladb:
  replica: Fix tombstone GC during tablet split preparation
  service: Improve error handling for split
2024-10-23 11:41:36 +02:00
Botond Dénes
03f370e971 Merge '[Backport 6.1] Check system.tablets update before putting it into the table' from ScyllaDB
Having tablet metadata with more than 1 pending replica will prevent this metadata from being (re)loaded due to sanity check on load. This patch fails the operation which tries to save the wrong metadata with a similar sanity check. For that, changes submitted to raft are validated, and if it's topology_change that affects system.tablets, the new "replicas" and "new_replicas" values are checked similarly to how they will be on (re)load.

fixes #20043

(cherry picked from commit f09fe4f351)

(cherry picked from commit e5bf376cbc)

(cherry picked from commit 1863ccd900)

 Refs #21020

Closes scylladb/scylladb#21110

* github.com:scylladb/scylladb:
  tablets: Validate system.tablets update
  group0_client: Introduce change validation
  group0_client: Add shared_token_metadata dependency
  replica/tablets: Add to_tablet_metadata_(row_)?key helpers
  replica/tablets: extract tablet_replica_set_from_cell()
2024-10-23 10:02:13 +03:00
Pavel Emelyanov
c52e5a8a87 tablets: Validate system.tablets update
Implement change validation for raft topology_change command. For now
the only check is that the "pending replicas" contains at most one
entry. The check mirrors similar one in `process_one_row` function.

If not passed, this prevents system.tablets from being updated with the
mutation(s) that will not be loaded later.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2024-10-22 13:17:00 +03:00
Pavel Emelyanov
337c777635 group0_client: Introduce change validation
Add validate_change() methods (well, a template and an overload) that
are called by prepare_command() and are supposed to validate the
proposed change before it hits persistent storage

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2024-10-22 13:16:56 +03:00
Pavel Emelyanov
881ec8600f group0_client: Add shared_token_metadata dependency
It will be needed later to get tablet_metadata from.
The dependency is "OK", shared_token_metadata is low-level sharded
service. Client already references db::system_keyspace, which in turn
references replica::database which, finally, references token_metadata

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2024-10-22 13:16:52 +03:00
Pavel Emelyanov
4bed029b56 replica/tablets: Add to_tablet_metadata_(row_)?key helpers
Extraceted from larger patch f5976aa87b (replica/tablets: add
get_tablet_metadata_change_hint() and update_tablet_metadata_change_hint())
by Botond. The helpers are needed to decode mutations with tablets
update to validate them later.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2024-10-22 13:16:47 +03:00
Kefu Chai
751f1fda16 replica/tablets: extract tablet_replica_set_from_cell()
so it can be reused to implement a low-level tool which reads tablets
data from sstables

Refs scylladb/scylladb#16488
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
2024-10-22 13:16:44 +03:00
Botond Dénes
0d41447e1a Merge '[Backport 6.1] atomic_delete: allow deletion of sstables from several prefixes' from ScyllaDB
Allow create_pending_deletion_log to delete a bunch of sstables
potentially resides in different prefixes (e.g. in the base directory
and under staging/).

The motivation arises from table::cleanup_tablet that calls compaction_group::cleanup on all cg:s via cleanup_compaction_groups.  Cleanup, in turn, calls delete_sstables_atomically on all sstables in the compaction_group, in all states, including the normal state as well as staging - hence the requirement to support deleting sstables in different sub-directories.

Also, apparently truncate calls delete_atomically for all sstables too, via table::discard_sstables, so if it happened to be executed during view update generation, i.e. when there are sstables in staging, it should hit the assertion failure reported in https://github.com/scylladb/scylladb/issues/18862 as well (although I haven't seen it yet, but I see no reason why it would happen). So the issue was apparently present since the initial implementation of the pending_delete_log. It's just that with tablet migration it is more likely to be hit.

Fixes scylladb/scylladb#18862

Needs backport to 6.0 since tablets require this capability

(cherry picked from commit a7b92d7b6f)

(cherry picked from commit 027e64876a)

(cherry picked from commit 44bd183187)

(cherry picked from commit f47b5e60bc)

 Refs #19555

Closes scylladb/scylladb#20644

* github.com:scylladb/scylladb:
  sstable_directory: create_pending_deletion_log: place pending_delete log under the base directory
  sstables: storage: keep base directory in base class
  sstables: storage: define opened_directory in header file
  sstable_directory: use only dirlog
2024-10-22 09:17:26 +03:00
Benny Halevy
71d90b2fbc view: check_needs_view_update_path: get token_metadata_ptr
check_needs_view_update_path is async and might yield
so the token_metadata reference passed to it must be kept
alive throughout the call.

Fixes scylladb/scylladb#20979

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit d34878e96c)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes scylladb/scylladb#21039
2024-10-22 09:16:40 +03:00
Daniel Reis
a22486a6d3 docs: fix redirect from cert-based auth to security/enable-auth page
(cherry picked from commit 28a265ccd8)

Closes scylladb/scylladb#21123
2024-10-22 09:13:42 +03:00
Raphael S. Carvalho
5106d40577 replica: Fix tombstone GC during tablet split preparation
During split prepare phase, there will be more than 1 compaction group with
overlapping token range for a given replica.

Assume tablet 1 has sstable A containing deleted data, and sstable B containing
a tombstone that shadows data in A.

Then split starts:
1) sstable B is split first, and moved from main (unsplit) group to a
split-ready group
2) now compaction runs in split-ready group before sstable A is split

tombstone GC logic today only looks at underlying group, so compaction is step
2 will discard the deleted data in A, since it belongs to another group (the
unsplit one), and so the tombstone can be purged incorrectly.

To fix it, compaction will now work with all uncompacting sstables that belong
to the same replica, since tombstone GC requires all sstables that possibly
contain shadowed data to be available for correct decision to be made.

Fixes #20044.

Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
(cherry picked from commit 93815e0649)
2024-10-20 20:44:44 -03:00
Benny Halevy
a8e472178f sstable_directory: create_pending_deletion_log: place pending_delete log under the base directory
To be able to atomically delete sstables both in
base table directory and in its sub-directories,
like `staging/`, use a shared pending_delete_dir
under under the base directory.

Note that this requires loading and processing
the base directory first.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit f47b5e60bc)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

# Conflicts:
#	sstables/sstable_directory.hh
2024-10-20 09:10:47 +03:00
Benny Halevy
8c646c2942 sstables: storage: keep base directory in base class
so we can use the base (table) directory for
e.g. pending_delete logs, in the next patch.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit 44bd183187)
2024-10-20 09:09:06 +03:00
Benny Halevy
334d56fcfd sstables: storage: define opened_directory in header file
So it can be used outside the storage module
in the following patches.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit 027e64876a)
2024-10-20 09:09:00 +03:00
Benny Halevy
e141e97f2d sstable_directory: use only dirlog
Currently, there are leftover log messages using
sstlog rather than dirlog, that was introduced
in aebd965f0e,
and that makes debugging harder.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
(cherry picked from commit a7b92d7b6f)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

# Conflicts:
#	sstables/sstable_directory.cc
2024-10-20 09:08:49 +03:00
Botond Dénes
7367544ea2 Merge '[Backport 6.1] tablet: Fix single-sstable split when attaching new unsplit sstables' from ScyllaDB
To fix a race between split and repair here c1de4859d8, a new sstable
  generated during streaming can be split before being attached to the sstable
  set. That's to prevent an unsplit sstable from reaching the set after the
  tablet map is resized.

  So we can think this split is an extension of the sstable writer. A failure
  during split means the new sstable won't be added. Also, the duration of split
  is also adding to the time erm is held. For example, repair writer will only
  release its erm once the split sstable is added into the set.

  This single-sstable split is going through run_custom_job(), which serializes
  with other maintenance tasks. That was a terrible decision, since the split may
  have to wait for ongoing maintenance task to finish, which means holding erm
  for longer. Additionally, if split monitor decides to run split on the entire
  compaction group, it can cause single-sstable split to be aborted since the
  former wants to select all sstables, propagating a failure to the streaming
  writer.
  That results in new sstable being leaked and may cause problems on restart,
  since the underlying tablet may have moved elsewhere or multiple splits may
  have happened. We have some fragility today in cleaning up leaked sstables on
  streaming failure, but this single-sstable split made it worse since the
  failure can happen during normal operation, when there's e.g. no I/O error.

  It makes sense to kill run_custom_job() usage, since the single-sstable split
  is offline and an extension of sstable writing, therefore it makes no sense to
  serialize with maintenance tasks. It must also inherit the sched group of the
  process writing the new sstable. The inheritance happens today, but is fragile.

  Fixes #20626.

(cherry picked from commit 999f1f1318)

(cherry picked from commit 38ce2c605d)

 Refs #20737

Closes scylladb/scylladb#20802

* github.com:scylladb/scylladb:
  tablet: Fix single-sstable split when attaching new unsplit sstables
  replica: Fix tablet split execute after restart
2024-10-17 19:36:47 +03:00
Piotr Smaron
f8d6215242 test: fix flaky test_multidc_alter_tablets_rf
The testcase is flaky due to a known python driver issue:
https://github.com/scylladb/python-driver/issues/317.
This issue causes the `CREATE KEYSPACE` statement to be sometimes
executed twice in a row, and the 2nd CREATE statement causes the test to
fail.
In order to work around it, it's enough to add `if not exists` when
creating a ks.

Fixes: #21034

Needs to be backported to all 6.x branches, as the PR introducing this flakiness is backported to every 6.x branch.

(cherry picked from commit 3969ffb39f)

Closes scylladb/scylladb#21106
2024-10-17 10:59:52 +03:00
Piotr Smaron
750ff26371 cql/tablets: handle MVs in ALTER tablets KEYSPACE
ALTERing tablets-enabled KEYSPACES (KS) didn't account for materialized
views (MV), and only produced tablets mutations changing tables.
With this patch we're producing tablets mutations for both tables and
MVs, hence when e.g. we change the replication factor (RF) of a KS, both the
tables' RFs and MVs' RFs are updated along with tablets replicas.
The `test_tablet_rf_change` testcase has been extended to also verify
that MVs' tablets replicas are updated when RF changes.

Fixes: #20240
(cherry picked from commit 5ac16e29e6)

Closes scylladb/scylladb#21023
2024-10-16 10:39:07 +03:00
Kefu Chai
e22d8a3de3 install.sh: install seastar/scripts/addr2line.py as well
seastar extracted `addr2line` python module out back in
e078d7877273e4a6698071dc10902945f175e8bc. but `install.sh` was
not updated accordingly. it still installs `seastar-addr2line`
without installing its new dependency. this leaves us with a
broken `seastar-addr2line` in the relocatable tarball.
```console
$ /opt/scylladb/scripts/seastar-addr2line
Traceback (most recent call last):
  File "/opt/scylladb/scripts/libexec/seastar-addr2line", line 26, in <module>
    from addr2line import BacktraceResolver
ModuleNotFoundError: No module named 'addr2line'
```

in this change, we redistribute `addr2line.py` as well. this
should address the issue above.

Fixes scylladb/scylladb#21077

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
(cherry picked from commit da433aad9d)

Closes scylladb/scylladb#21087
2024-10-14 13:31:17 +03:00
Michał Chojnowski
9f0b19b7f7 reader_concurrency_semaphore: in stats, fix swapped count_resources and memory_resources
can_admit_read() returns reason::memory_resources when the permit is queued due
to lack of count resources, and it returns reason::count_resources when the
permit is queued due to lack of memory resources. It's supposed to be the other
way around.

This bug is causing the two counts to be swapped in the stat dumps printed to
the logs when semaphores time out.

(cherry picked from commit c2ba300f1c)

Closes scylladb/scylladb#21031
2024-10-11 14:45:31 +03:00
Botond Dénes
1e847d0253 Merge '[Backport 6.1] cql: improve validating RF's change in ALTER tablets KS' from ScyllaDB
This patch series fixes a couple of bugs around validating if RF is not changed by too much when performing ALTER tablets KS.
RF cannot change by more than 1 in total, because tablets load balancer cannot handle more work at once.

Fixes: #20039

Should be backported to 6.0 & 6.1 (wherever tablets feature is present), as this bug may break the cluster.

(cherry picked from commit 042825247f)

(cherry picked from commit adf453af3f)

(cherry picked from commit 9c5950533f)

(cherry picked from commit 47acdc1f98)

(cherry picked from commit 93d61d7031)

(cherry picked from commit 6676e47371)

(cherry picked from commit 2aabe7f09c)

(cherry picked from commit ee56bbfe61)

 Refs #20208

Closes scylladb/scylladb#21010

* github.com:scylladb/scylladb:
  cql: sum of abs RFs diffs cannot exceed 1 in ALTER tablets KS
  cql: join new and old KS options in ALTER tablets KS
  cql: fix validation of ALTERing RFs in tablets KS
  cql: harden `alter_keyspace_statement.cc::validate_rf_difference`
  cql: validate RF change for new DCs in ALTER tablets KS
  cql: extend test_alter_tablet_keyspace_rf
  cql: refactor test_tablets::test_alter_tablet_keyspace
  cql: remove unused helper function from test_tablets
2024-10-11 14:44:48 +03:00
Botond Dénes
b32304bdda repair/row_level: remove reader timeout
This timeout was added to catch reader related deadlocks. We have not
seen such deadlocks for a long time, but we did see false-timeouts
caused by this, see explanation below. Since the cost now outweight the
benefit, remove the timeout altogether.

The false timeout happens during mixed-shard repair. The
`reader_permit::set_timeout()` call is called on the top-level permit
which repair has a handle on. In the case of the mixed-shard repair,
this belongs to the multishard reader. Calling set_timeout() on the
multishard reader has no effect on the actual shard readers, except in
one case: when the shard reader is created, it inherits the multishard
reader's current timeout. As the shard reader can be alive for a long
time, this timeout is not refreshed and ultimately causes a timeout and
fails the repair.

Refs: #18269
(cherry picked from commit 3ebb124eb2)

Closes scylladb/scylladb#20956
2024-10-11 14:42:06 +03:00
Kefu Chai
ef549dbeac auth: capture boost::regex_error not std::regex_error
in a3db5401, we introduced the TLS certi authenticator, which is
configured using `auth_certificate_role_queries` option . the
value of this option contains a regular expression. so there are
chances the regular expression is malformatted. in that case,
when converting its value presenting the regular expression to an
instance of `boost::regex`, Boost.Regex throws a `boost::regex_error`
exception, not `std::regex_error`.

since we decided to use Boost.Regex, let's catch `boost::regex_error`.

Refs a3db5401
Fixes scylladb/scylladb#20941
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
(cherry picked from commit c7eafc4dc1)

Closes scylladb/scylladb#20953
2024-10-11 14:38:28 +03:00
Anna Stuchlik
65c047f911 doc: document the option to run ScyllaDB in Docker on macOS
This commit adds a description of a workaround to create a multi-node ScyllaDB cluster
with Docker on macOS.

Refs https://github.com/scylladb/scylladb/issues/16806
See https://forum.scylladb.com/t/running-3-node-scylladb-in-docker/1057/4

(cherry picked from commit 7eb1dc2ae5)

Closes scylladb/scylladb#20932
2024-10-11 14:37:55 +03:00
Calle Wilund
6ea4e4a289 database: Also forced new schema commitlog segment on user initiated memtable flush
Refs #20686
Refs #15607

In #15060 we added forced new commitlog segment on user initated flush,
mainly so that tests can verify tombstone gc and other compaction related
things, without having to wait for "organic" segment deletion.
Schema commitlog was not included, mainly because we did not have tests
featuring compaction checks of schema related tables, but also because
it was assumed to be lower general througput.
There is however no real reason to not include it, and it will make some
testing much quicker and more predictable.

(cherry picked from commit 60f8a9f39d)

Closes scylladb/scylladb#20704
2024-10-11 14:36:26 +03:00
Avi Kivity
e31d6c278f Merge '[Backport 6.1] scylla_raid_setup: configure SELinux file context' from ScyllaDB
On RHEL9, systemd-coredump fails to coredump on /var/lib/scylla/coredump because the service only have write acess with systemd_coredump_var_lib_t. To make it writable, we need to add file context rule for /var/lib/scylla/coredump, and run restorecon on /var/lib/scylla.

Fixes #19325

(cherry picked from commit 56c971373c)

(cherry picked from commit 0ac450de05)

 Refs #20528

Closes scylladb/scylladb#20871

* github.com:scylladb/scylladb:
  scylla_raid_setup: configure SELinux file context
  scylla_coredump_setup: fix SELinux configuration for RHEL9
2024-10-10 19:01:40 +03:00
Gleb Natapov
592d925516 storage_proxy: make sure there is no end iterator in _live_iterators array
storage_proxy::cancellable_write_handlers_list::update_live_iterators
assumes that iterators in _live_iterators can be dereferenced, but
the code does not make any attempt to make sure this is the case. The
iterator can be the end iterator which cannot be dereferenced.

The patch makes sure that there is no end iterator in _live_iterators.

Fixes scylladb/scylladb#20874

(cherry picked from commit da084d6441)

Closes scylladb/scylladb#21004
2024-10-09 20:16:53 +03:00
Piotr Smaron
08165851fb cql: sum of abs RFs diffs cannot exceed 1 in ALTER tablets KS
Tablets load balancer is unable to process more than a single pending
replica, thus ALTER tablets KS cannot accept an ALTER statement which
would result in creating 2+ pending replicas, hence it has to validate
if the sum of absoulte differences of RFs specified in the statement is
not greter than 1.

(cherry picked from commit ee56bbfe61)
2024-10-08 18:06:54 +00:00
Piotr Smaron
1f6befe16d cql: join new and old KS options in ALTER tablets KS
A bug has been discovered while trying to ALTER tablets KS and
specifying only 1 out of 2 DCs - the not specified DC's RF has been
zeroed. This is because ALTER tablets KS updated the KS only with the
RF-per-DC mapping specified in the ALTER tablets KS statement, so if a
DC was ommitted, it was assigned a value of RF=0.
This commit fixes that plus additionally passes all the KS options, not
only the replication options, to the topology coordinator, where the KS
update is performed.
`initial_tablets` is a special case, which requires a special handling
in the source code, as we cannot simply update old initial_tablet's
settings with the new ones, because if only ` and TABLETS = {'enabled':
true}` is specified in the ALTER tablets KS statement, we should not zero the `initial_tablets`, but
rather keep the old value - this is tested by the
`test_alter_preserves_tablets_if_initial_tablets_skipped` testcase.
Other than that, the above mentioned testcase started to fail with
these changes, and it appeared to be an issue with the test not waiting
until ALTER is completed, and thus reading the old value, hence the
test's body has been modified to wait for ALTER to complete before
performing validation.

(cherry picked from commit 2aabe7f09c)
2024-10-08 18:06:53 +00:00
Piotr Smaron
97b37fbbd0 cql: fix validation of ALTERing RFs in tablets KS
The validation has been corrected with:
1. Checking if a DC specified in ALTER exists.
2. Removing `REPLICATION_STRATEGY_CLASS_KEY` key from a map of RFs that
   needs their RFs to be validated.

(cherry picked from commit 6676e47371)
2024-10-08 18:06:47 +00:00
Piotr Smaron
7c837837eb cql: harden alter_keyspace_statement.cc::validate_rf_difference
This function assumed that strings passed as arguments will be of
integer types, but that wasn't the case, and we missed that because this
function didn't have any validation, so this change adds proper
validation and error logging.
Arguments passed to this function were forwarded from a call to
`ks_prop_defs::get_replication_options`, which, among rf-per-dc mapping, returns also
`class:replication_strategy` pair. Second pair's member has been casted
into an `int` type and somehow the code was still running fine, but only
extra testing added later discovered a bug in here.

(cherry picked from commit 93d61d7031)
2024-10-08 18:06:47 +00:00
Piotr Smaron
0e0fe4d756 cql: validate RF change for new DCs in ALTER tablets KS
ALTER tablets KS validated if RF is not changed by more than 1 for DCs
that already had replicas, but not for DCs that didn't have them yet, so
specifying an RF jump from 0 to 2 was possible when listing a new DC in
ALTER tablets KS statement, which violated internal invariants of
tablets load balancer.
This PR fixes that bug and adds a multi-dc testcases to check if adding
replicas to a new DC and removing replicas from a DC is honoring the RF
change constraints.

Refs: #20039
(cherry picked from commit 47acdc1f98)
2024-10-08 18:06:46 +00:00
Piotr Smaron
78bf036419 cql: extend test_alter_tablet_keyspace_rf
Added cases to also test decreasing RF and setting the same RF.
Also added extra explanatory comments.

(cherry picked from commit 9c5950533f)
2024-10-08 18:06:45 +00:00
Piotr Smaron
4fc45b6fa6 cql: refactor test_tablets::test_alter_tablet_keyspace
1. Renamed the testcase to emphasize that it only focuses on testing
   changing RF - there are other tests that test ALTER tablets KS
in general.
2. Fixed whitespaces according to PEP8

(cherry picked from commit adf453af3f)
2024-10-08 18:06:44 +00:00
Piotr Smaron
dbb912c8dd cql: remove unused helper function from test_tablets
`change_default_rf` is not used anywhere, moreover it uses
`replication_factor` tag, which is forbidden in ALTER tablets KS
statement.

(cherry picked from commit 042825247f)
2024-10-08 18:06:42 +00:00
Raphael S. Carvalho
684b16d709 service: Improve error handling for split
Retry wasn't really happening since the loop was broken and sleep
part was skipped on error. Also, we were treating abort of split
during shutdown as if it were an actual error and that confused
longevity tests that parse for logs with error level. The fix is
about demoting the level of logs when we know the exception comes
from shutdown.

Fixes #20890.

(cherry picked from commit bcd358595f)
2024-10-04 11:17:37 +00:00
Pavel Emelyanov
190385ee2b cql: Check that CREATEing tablets/vnodes is consistent with the CLI
There are two bits that control whenter replication strategy for a
keyspace will use tablets or not -- the configuration option and CQL
parameter. This patch tunes its parsing to implement the logic shown
below:

    if (strategy.supports_tablets) {
         if (cql.with_tablets) {
             if (cfg.enable_tablets) {
                 return create_keyspace_with_tablets();
             } else {
                 throw "tablets are not enabled";
             }
         } else if (cql.with_tablets = off) {
              return create_keyspace_without_tablets();
         } else { // cql.with_tablets is not specified
              if (cfg.enable_tablets) {
                  return create_keyspace_with_tablets();
              } else {
                  return create_keyspace_without_tablets();
              }
         }
     } else { // strategy doesn't support tablets
         if (cql.with_tablets == on) {
             throw "invalid cql parameter";
         } else if (cql.with_tablets == off) {
             return create_keyspace_without_tablets();
         } else { // cql.with_tablets is not specified
             return create_keyspace_without_tablets();
         }
     }

closes: #20088

In order to enable tablets "by default" for NetworkTopologyStrategy
there's explicit check near ks_prop_defs::get_initial_tablets(), that's
not very nice. It needs more care to fix it, e.g. provide feature
service reference to abstract_replication_strategy constructor. But
since ks_prop_defs code already highjacks options specifically for that
strategy type (see prepare_options() helper), it's OK for now.

There's also #20768 misbehavior that's preserved in this patch, but
should be fixed eventually as well.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

Closes scylladb/scylladb#20928
2024-10-03 17:09:21 +03:00
Calle Wilund
4a1e83d6be commitlog: Fix buffer_list_bytes not updated correctly
Fixes #20862

With the change in 60af2f3cb2 the bookkeep
for buffer memory was changed subtly, the problem here that we would
shrink buffer size before we after flush use said buffer's size to
decrement the buffer_list_bytes value, previously inc:ed by the full,
allocated size. I.e. we would slowly grow this value instead of adjusting
properly to actual used bytes.

Test included.

(cherry picked from commit ee5e71172f)

Closes scylladb/scylladb#20914
2024-10-03 09:11:40 +03:00
Kamil Braun
a96654bea3 Merge '[Backport 6.1] Populate raft address map from gossiper on raft configuration change' from ScyllaDB
For each new node added to the raft config populate it's ID to IP mapping in raft address map from the gossiper. The mapping may have expired if a node is added to the raft configuration long after it first appears in the gossiper.

Fixes scylladb/scylladb#20600

Backport to all supported versions since the bug may cause bootstrapping failure.

(cherry picked from commit bddaf498df)

(cherry picked from commit 9e4cd32096)

 Refs #20601

Closes scylladb/scylladb#20848

* github.com:scylladb/scylladb:
  test: extend existing test to check that a joining node can map addresses of all pre-existing nodes during join
  group0: make sure that address map has an entry for each new node in the raft configuration
2024-09-30 17:03:03 +02:00
Takuya ASADA
295993d7f9 scylla_raid_setup: configure SELinux file context
On RHEL9, systemd-coredump fails to coredump on /var/lib/scylla/coredump
because the service only have write acess with systemd_coredump_var_lib_t.
To make it writable, we need to add file context rule for
/var/lib/scylla/coredump, and run restorecon on /var/lib/scylla.

Fixes #20573

(cherry picked from commit 0ac450de05)
2024-09-29 13:23:03 +00:00
Takuya ASADA
bd7e1cfc5f scylla_coredump_setup: fix SELinux configuration for RHEL9
Seems like specific version of systemd pacakge on RHEL9 has a bug on
SELinux configuration, it introduced "systemd-container-coredump" module
to provide rule for systemd-coredump, but not enabled by default.
We have to manually load it, otherwise it causes permission error.

Fixes #19325

(cherry picked from commit 56c971373c)
2024-09-29 13:23:03 +00:00
Kamil Braun
79119f58e8 Merge '[Backport 6.1] mark node as being replaced earlier' from Gleb Natapov
Before 17f4a151ce the node was marked as
been replaced in join_group0 state, before it actually joins the group0,
so by the time it actually joins and starts transferring snapshot/log no
traffic is sent to it. The commit changed this to mark the node as
being replaced after the snapshot/log is already transferred so we can
get the traffic to the node while it sill did not caught up with a
leader and this may causes problems since the state is not complete.
Mark the node as being replaced earlier, but still add the new node to
the topology later as the commit above intended.

Fixes: https://github.com/scylladb/scylladb/issues/20629

Need to be backported since this is a regression

(cherry picked from commit 644e7a2012)

(cherry picked from commit c0939d86f9)

(cherry picked from commit 1b4c255ffd)

Closes scylladb/scylladb#20834

* github.com:scylladb/scylladb:
  test: amend test_replace_reuse_ip test to check that there is no stale writes after snapshot transfer starts
  topology coordinator:: mark node as being replaced earlier
  topology coordinator: do metadata barrier before calling finish_accepting_node() during replace
2024-09-27 16:10:07 +02:00
Andrei Chekun
392d95d2cd test.py: Increase workers for cluster cleaning
Increase workers for that used in method async_rmtree() that is used for
cleaning directories. This should help to reduce flakiness.
Increasing the workers count was introduced in f54b7f5427
but there is no need to backport the whole commit.

Closes scylladb/scylladb#20795
2024-09-27 14:47:08 +02:00
Kamil Braun
be76d6f9d9 service: raft: fix rpc error message
What it called "leader" is actually the destination of the RPC.

Trivial fix, should be backported to all affected versions.

(cherry picked from commit 84dd0e922b)

Closes scylladb/scylladb#20827
2024-09-27 11:22:02 +02:00