Commit Graph

38382 Commits

Author SHA1 Message Date
Raphael S. Carvalho
d3f71ae4ee replica: Switch to chunked_vector for storing compaction groups
We aim for a large number of tablets, therefore let's switch
to chunked_vector to avoid large contiguous allocs.

Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2023-08-15 09:04:05 -03:00
Raphael S. Carvalho
2590eec352 replica: Generate group_id for compaction_group on demand
There are a few good reasons for this change.
1) compaction_group doesn't have to be aware of # of groups
2) thinking forward to dynamic tablets, # of groups cannot be
statically embedded in group id, otherwise it gets stale.

Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
2023-08-15 09:04:05 -03:00
Avi Kivity
d57a951d48 Revert "cql3: Extend the scope of group0_guard during DDL statement execution"
This reverts commit 70b5360a73. It generates
a failure in group0_test .test_concurrent_group0_modifications in debug
mode with about 4% probability.

Fixes #15050
2023-08-15 00:26:45 +03:00
Patryk Jędrzejczak
e7077da12d replica: reduce the size limit of the schema commitlog
The size of the schema commitlog is incorrectly set to 10 TB. To
avoid wasting space, we reduce it to 2 * schema commitlog segment
size.

Closes #14946
2023-08-14 20:41:15 +02:00
Benny Halevy
9f77a32805 compaction_manager: run_offstrategy_compaction: retrieve owned_ranges from compaction_state
perform_offstrategy is called from try_perform_cleanup
when there are sstables in the maintenance set that require
cleanup.

The input sstables are inserted into the compaction_state
`sstables_requiring_cleanup` and `try_perform_cleanup`
expects offstrategy compaction to clean them up along
with reshape compaction.

Otherwise, the maintenance sstables that require cleanup
are not cleaned up by cleanup compaction, since
the reshape output sstable(s) are not analyzed again
after reshape compaction, where that would insert
the output sstable(s) into `sstables_requiring_cleanup`
and trigger their cleanup in the subsequent cleanup compaction.

The latter method is viable too, but it is less effficient
since we can do reshape+cleanup in one pass, vs.
reshape first and cleanup later.

Fixes scylladb/scylladb#15041

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes #15043
2023-08-14 18:37:34 +03:00
Avi Kivity
1937a5c1dd docs: cql: document the relative priority of SELECT clauses
Document how SELECT clauses are considered. For example, given the query

    SELECT * FROM tab WHERE a = 3 LIMIT 1

We'll get different results if we first apply the WHERE clause then LIMIT
the result set, or if we first LIMIT there result set and then apply the
WHERE clause.

Closes #14990
2023-08-14 17:40:37 +03:00
Aleksandra Martyniuk
7a28cc60ec compaction: ignore future explicitly
discard_result ignores only successful futures. Thus, if
perform_compaction<regular_compaction_task_executor> call fails,
a failure is considered abandoned, causing tests to fail.

Explicitly ignore failed future.

Fixes: #14971.

Closes #15000
2023-08-14 16:41:15 +03:00
Pavel Emelyanov
116d08d10f distributed_loader: Mark tables for write in populator
Both, init_system_keyspace() and init_non_system_keyspaces() populate
the keyspaces with the help of distributed_loader::populate_keyspace().
That method, in turn, walks the list of keyspaces' tables to load
sstables from disk and attach to them.

After it both init_...-s take the 2nd pass over keyspaces' tables to
call the table::mark_ready_for_writes() on each. This marking can be
moved into populate_keyspace(), that's much easier and shorter because
that method already has the shard-wide table pointer and can just call
whatever it needs on the table.

This changes the initialization sequence, before the patch all tables
were populated before any of them was marked as ready for write. This
looks safe however, as marking a table for write meaks resetting its
generation generator and different tables' generators are independent
from each other.

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

Closes #15026
2023-08-14 13:22:41 +03:00
Aleksandra Martyniuk
9ec43fd3a7 compaction: update comment in compaction_manager::submit
Closes #15023
2023-08-14 09:34:56 +03:00
Avi Kivity
b120d35c58 Merge 'Relax cql_test_env services maintenance' from Pavel Emelyanov
To add a sharded service to the cql_test_env one needs to patch it in 5 or 6 places

- add cql_test_env reference
- add cql_test_env constructor argument
- initialize the reference in initializer list
- add service variable to do_with method
- pass the variable to cql_test_env constructor
- (optionally) export it via cql_test_env public method

Steps 1 through 5 are annoying, things get much simpler if look like

- add cql_test_env variable
- (optionally) export it via cql_test_env public method

This is what this PR does

refs: #2795

Closes #15028

* github.com:scylladb/scylladb:
  cql_test_env: Drop local *this reference
  cql_test_env: Drop local references
  cql_test_env: Move most of the stuff in run_in_thread()
  cql_test_env: Open-code env start/stop and remove both
  cql_test_env: Keep other services as class variables
  cql_test_env: Keep services as class variables
  cql_test_env: Construct env early
  cql_test_env: De-static fdpinger variable
  cql_test_env: Define all services' variables early
  cql_test_env: Keep group0_client pointer
2023-08-13 20:24:52 +03:00
Benny Halevy
8fbcf1ab9f view: start: ignore also abort_requested_exception
We see the abort_requested_exception error from time
to time, instead of sleep_aborted that was expected
and quietly ignored (in debug log level).

Treat abort_requested_exception the same way since
the error is expected on shutdown and to reduce
test flakiness, as seen for example, in
https://jenkins.scylladb.com/job/scylla-master/job/scylla-ci/3033/artifact/logs-full.release.010/1691896356104_repair_additional_test.py%3A%3ATestRepairAdditional%3A%3Atest_repair_schema/node2.log
```
INFO  2023-08-13 03:12:29,151 [shard 0] compaction_manager - Asked to stop
WARN  2023-08-13 03:12:29,152 [shard 0] gossip - failure_detector_loop: Got error in the loop, live_nodes={}: seastar::sleep_aborted (Sleep is aborted)
INFO  2023-08-13 03:12:29,152 [shard 0] gossip - failure_detector_loop: Finished main loop
WARN  2023-08-13 03:12:29,152 [shard 0] cdc - Aborted update CDC description table with generation (2023/08/13 03:12:17, d74aad4b-6d30-4f22-947b-282a6e7c9892)
INFO  2023-08-13 03:12:29,152 [shard 1] compaction_manager - Asked to stop
INFO  2023-08-13 03:12:29,152 [shard 1] compaction_manager - Stopped
INFO  2023-08-13 03:12:29,153 [shard 0] init - Signal received; shutting down
INFO  2023-08-13 03:12:29,153 [shard 0] init - Shutting down view builder ops
INFO  2023-08-13 03:12:29,153 [shard 0] view - Draining view builder
INFO  2023-08-13 03:12:29,153 [shard 1] view - Draining view builder
INFO  2023-08-13 03:12:29,153 [shard 0] compaction_manager - Stopped
ERROR 2023-08-13 03:12:29,153 [shard 0] view - start failed: seastar::abort_requested_exception (abort requested)
ERROR 2023-08-13 03:12:29,153 [shard 1] view - start failed: seastar::abort_requested_exception (abort requested)
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes #15029
2023-08-13 18:39:09 +03:00
Gleb Natapov
70b5360a73 cql3: Extend the scope of group0_guard during DDL statement execution
Currently we hold group0_guard only during DDL statement's execute()
function, but unfortunately some statements access underlying schema
state also during check_access() and validate() calls which are called
by the query_processor before it calls execute. We need to cover those
calls with group0_guard as well and also move retry loop up. This patch
does it by introducing new function to cql_statement class take_guard().
Schema altering statements return group0 guard while others do not
return any guard. Query processor takes this guard at the beginning of a
statement execution and retries if service::group0_concurrent_modification
is thrown. The guard is passed to the execute in query_state structure.

Fixes: #13942

Message-ID: <ZNSWF/cHuvcd+g1t@scylladb.com>
2023-08-13 14:19:39 +03:00
Patryk Jędrzejczak
2e2271f639 raft: make a replaced node a non-voter early
We make a replaced node a non-voter early, just as a removed node
in 377f87c91a.

Closes #15022
2023-08-12 22:03:46 +02:00
Avi Kivity
0cd0be6275 Merge 'Remove some stale sugar from cql_test_env' from Pavel Emelyanov
There are some asserting checks for keyspace and table existence on cql_test_env that perform some one-linee work in a complex manner, tests can do better on their own. Removing it makes cql_test_env simpler

refs: #2795

Closes #15027

* github.com:scylladb/scylladb:
  test: Remove require_..._exists from cql_test_env
  test: Open-code ks.cf name parse into cdc_test
  test: Don't use require_table_exists() in test/lib/random_schema
  test: Use BOOST_REQUIRE(!db.has_schema())
  test: Use BOOST_REQUIRE(db.has_schema())
  test: Use BOOST_REQUIRE(db.has_keyspace())
  test: Threadify cql_query_test::test_compact_storage case
  test: Threadify some cql_query_test cases
2023-08-12 22:32:47 +03:00
Pavel Emelyanov
64ddc9e4b4 cql_test_env: Drop local *this reference
The auto& env = *this is also now excessive, so drop it

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:30:34 +03:00
Pavel Emelyanov
de679d7c36 cql_test_env: Drop local references
The local auto& foo = env._foo references in run_in_thread() a no longer
needed, the code that uses foo can be switched to use _foo (this->_foo)
instead

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:29:42 +03:00
Pavel Emelyanov
487ecae517 cql_test_env: Move most of the stuff in run_in_thread()
Thw do_with() method is static and cannot just access cql_test_env
variable's fields, using local references instead. To simplify this,
most of the method's content is moved to non-static run_in_thread()
method

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:28:40 +03:00
Pavel Emelyanov
2c175660f2 cql_test_env: Open-code env start/stop and remove both
These two just make more churn in next patch, so drop both

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:28:03 +03:00
Pavel Emelyanov
10f9292fe8 cql_test_env: Keep other services as class variables
There are more services on do_with() stack that are not referenced from
the cql_test_env. Move them to be class variables too

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:27:19 +03:00
Pavel Emelyanov
08a3be3b17 cql_test_env: Keep services as class variables
Now they are duplicated -- variables exist on do_with() stack and the
class references some of them. This patch makes is vice-versa -- all the
variables are on the cql_test_env and do_with() references them. The
latter will change soon

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:26:21 +03:00
Pavel Emelyanov
b31d2097b8 cql_test_env: Construct env early
Its constructor is _just_ assigning references and setting up rlimits.
Both can happen early

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:25:49 +03:00
Pavel Emelyanov
49d4760655 cql_test_env: De-static fdpinger variable
So that it could be moved onto cql_test_env as a class member

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:25:25 +03:00
Pavel Emelyanov
749c5baf21 cql_test_env: Define all services' variables early
Nowadays they are all scattered along the .do_with() function. Keeping
them in one early place makes it possible to relocate them onto the
cql_test_env later

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:23:54 +03:00
Pavel Emelyanov
d36737f094 cql_test_env: Keep group0_client pointer
It's now reference, but some time later it won't be able to get
initialized construction-time, so turn it into pointer

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 15:23:16 +03:00
Pavel Emelyanov
da98355bc8 test: Remove require_..._exists from cql_test_env
Not used by any code anymore. This makes cql_test_env shorter and nicer

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:36 +03:00
Pavel Emelyanov
64c8a59e9b test: Open-code ks.cf name parse into cdc_test
The test uses qualified ks.cf name to find the schema, but it's the only
test case that does it. There's no point in maintaining a dedicated
helper on the cql_test_env just for that

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:36 +03:00
Pavel Emelyanov
6ead9a5255 test: Don't use require_table_exists() in test/lib/random_schema
This check is pointless. The subsequent call to find_column_family()
would call on_internal_error() in case schema is not found, and since
cql_test_env sets abort-on-internal-error to true, this would fail just
like that

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:36 +03:00
Pavel Emelyanov
b4c84f9174 test: Use BOOST_REQUIRE(!db.has_schema())
Surprisingly there's a dedicated helper for the check opposite to the
one fixed in the previous patch. Fix one too

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:36 +03:00
Pavel Emelyanov
063baabaee test: Use BOOST_REQUIRE(db.has_schema())
Same as in previous patch, the cql_test_env::require_table_exists()
helper is exactly the same, but returns future and asserts on failures
for no gain

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:32 +03:00
Pavel Emelyanov
a128108acd test: Use BOOST_REQUIRE(db.has_keyspace())
The cql_test_env::require_keyspace_exists() performs exactly the same
check, but is future-returning function for no reason and it assert()s
on failure, that's less informative (not that it ever failed) than
BOOST_REQUIRE

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:46:29 +03:00
Pavel Emelyanov
53c309063e test: Threadify cql_query_test::test_compact_storage case
It's like in previous patch, and for the same reason, but the change is
a bit more complicated because it uses resolved futures' results in few
places, so it likely deserves separate commit

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:39:40 +03:00
Pavel Emelyanov
59db35fba0 test: Threadify some cql_query_test cases
Those two use straight .then-s sequences, no point in keeping them that
long. Being threads makes next patches shorter and nicer

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2023-08-12 11:38:51 +03:00
Aleksandra Martyniuk
db932c7106 compaction: hold gate immediately after task executor is created
If make_task call in compaction_manager::perform_compaction yields,
compaction_task_executor::_compaction_state may be gone and gate
won't be held.

Hold gate immediately after compaction_task_executor is created.
Add comment not to call prepare_task without preparation.

Refs: #14971.
Fixes: #14977.

Closes #14999
2023-08-11 13:56:38 +02:00
Kefu Chai
17c1b15c81 create-relocatable-package.py: add version file with tempfile
before this change, we build multiple relocatable package for
different builds in parallel using ninja. all these relocatable
packages are built using the same script of
`create-relocatable-package.py`. but this script always use the
same directory and file for the `.relocatable_package_version`
file.

so there are chances that these jobs building the relocatable
package can race and writing / accessing the same file at the same
time. so, in this change, instead of using a fixed file path
for this temporary file, we use a NamedTemporaryFile for this purpose.
this should helps us avoid the build failures like

```
[2023-08-10T09:38:00.019Z] FAILED: build/debug/dist/tar/scylla-unstripped-5.4.0~dev-0.20230810.116c10a2b0c6.x86_64.tar.gz
[2023-08-10T09:38:00.019Z] scripts/create-relocatable-package.py --mode debug 'build/debug/dist/tar/scylla-unstripped-5.4.0~dev-0.20230810.116c10a2b0c6.x86_64.tar.gz'
[2023-08-10T09:38:00.019Z] Traceback (most recent call last):
[2023-08-10T09:38:00.019Z]   File "/jenkins/workspace/scylla-master/scylla-ci/scylla/scripts/create-relocatable-package.py", line 130, in <module>
[2023-08-10T09:38:00.019Z]     os.makedirs(f'build/{SCYLLA_DIR}')
[2023-08-10T09:38:00.019Z]   File "<frozen os>", line 225, in makedirs
[2023-08-10T09:38:00.019Z] FileExistsError: [Errno 17] File exists:
'build/scylla-package'
```

Fixes #15018
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes #15007
2023-08-11 12:57:28 +03:00
Aleksandra Martyniuk
ae67f5d47e api: ignore future in task_manager_json::wait_task
Before returning task status, wait_task waits for it to finish with
done() method and calls get() on a resulting future.

If requested task fails, an exception will be thrown and user will
get internal server error instead of failed task status.

Result of done() method is ignored.

Fixes: #14914.

Closes #14915
2023-08-11 08:18:51 +03:00
Patryk Jędrzejczak
d1d1b6cf6e raft: remove a replaced node from group 0 earlier
The topology coordinator only marks a replaced node as LEFT
during the replace operation and actually removes it from the
group 0 config in cleanup_group0_config_if_needed. If this
function is called before raft has committed a replacing node as
a voter, it does not remove the replaced node from the group 0
config. Then, the coordinator can decide that it has no work to
do and starts sleeping, leaving us with an outdated config.

This behavior reduces group 0 availability and causes problems in
tests (see  #14885). Also, it makes the coordinator's logic
confusing - it claims that it has no work to do when it has some
work to do. Therefore, we modify the coordinator so that it
removes the replaced node earlier in handle_topology_transition.

Fixes #14885
Fixes #14975

Closes #15009
2023-08-11 01:32:24 +02:00
Botond Dénes
403ba9b055 Merge 'gossiper: lock_endpoint: fix review comments' from Benny Halevy
This series fixes a couple of review comments on #14845

Closes #14976

* github.com:scylladb/scylladb:
  gossiper: lock_endpoint: fix comment regarding permit_id mismatch
  gossiper: lock_endpoint: change assert to on_internal_error
2023-08-10 17:37:32 +03:00
Kamil Braun
8f658fb139 Merge 's3/client: check for available port before starting minio server' from Kefu Chai
there is chance that the default port of 9000 has been used on the host
running the test, in that case, we should try to use another available
port.

so, in this change, we try ports in the ranges of [9000, 9000+1000), and
use the first one which is not connectable.

Fixes #14985
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes #14997

* github.com:scylladb/scylladb:
  test: stop using HostRegistry in MinioServer
  s3/client: check for available port before starting minio server
2023-08-10 14:01:13 +02:00
Alejo Sanchez
e2122163f5 test/pylib: protect double call to cluster stop
test.py schedules calls to cluster .uninstall() and .stop() making
double calls to it running at the same time. Mark the cluster as not
running early on.

While there, do the same for .stop_gracefully() for consistency.

Signed-off-by: Alejo Sanchez <alejo.sanchez@scylladb.com>

Closes #14987
2023-08-10 13:37:49 +02:00
Kamil Braun
39330b9c11 Merge 'gossiper: convict: lock_endpoint' from Benny Halevy
Currently, `mark_dead` is called with null_permit_id
from `convict`, and in this case, by contract,
it should lock the endpoint, same as `mark_as_shutdown`.

This change somehow escaped #14845 so it amends it.

Fixes #14838

Closes #15001

* github.com:scylladb/scylladb:
  gossiper: verify permit_id in all private functions
  gossiper: convict: lock_endpoint
2023-08-10 13:09:05 +02:00
Benny Halevy
623ed1a249 gossiper: verify permit_id in all private functions
Instead of acquiring the permit is the permit_id arg is null,
like in mark_as_shutdown, just asssert that the permit_id is
non-null. The functions are both private and we control all callers.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
2023-08-10 08:17:04 +03:00
Benny Halevy
42c1c5ead8 gossiper: convict: lock_endpoint
Currently, `mark_dead` is called with null_permit_id
from `convict`, and in this case, by contract,
it should lock the endpoint, same as `mark_as_shutdown`.

This change somehow escaped #14845 so it amends it.

Fixes #14838

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
2023-08-10 07:50:33 +03:00
Kefu Chai
0c0a59bf62 test: stop using HostRegistry in MinioServer
since MinioServer find a free port by itself, there is no need to
provide it an IP address for it anymore -- we can always use
127.0.0.1.

so, in this change, we just drop the HostRegistry parameter passed
to the constructor of MinioServer, and pass the host address in place
of it.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
2023-08-09 23:40:22 +08:00
Kamil Braun
59c410fb97 Merge 'migration_manager: announce: provide descriptions for all calls' from Patryk Jędrzejczak
The `system.group0_history` table provides useful descriptions for each
command committed to Raft group 0. One way of applying a command to
group 0 is by calling `migration_manager::announce`. This function has
the `description` parameter set to empty string by default. Some calls
to `announce` use this default value which causes `null` values in
`system.group0_history`. We want `system.group0_history` to have an
actual description for every command, so we change all default
descriptions to reasonable ones.

Going further, We remove the default value for the `description`
parameter of `migration_manager::announce` to avoid using it in the
future. Thanks to this, all commands in `system.group0_history` will
have a non-null description.

Fixes #13370

Closes #14979

* github.com:scylladb/scylladb:
  migration_manager: announce: remove the default value of description
  test: always pass empty description to migration_manager::announce
  migration_manager: announce: provide descriptions for all calls
2023-08-09 16:58:41 +02:00
Kefu Chai
29554b0fc6 s3/client: check for available port before starting minio server
there is chance that the default port of 9000 has been used on the
host running the test, in that case, we should try to use another
available port.

so, in this change, we try ports in the ranges of [9000, 9000+1000),
and use the first one which is not connectable.

Fixes #14985
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
2023-08-09 17:33:42 +08:00
Botond Dénes
108e510a23 Merge 'Update sstable_requiring_cleanup on compaction completion' from Benny Halevy
Currently `sstable_requiring_cleanup` is updated using `compacting_sstable_registration`, but that mechanism is not used by offstrategy compaction, leading to #14304.

This series introduces `compaction_manager::on_compaction_completion` that intercepts the call
to the table::on_compaction_completion. This allows us to update `sstable_requiring_cleanup` right before the compacted sstables are deleted, making sure they are no leaked to `sstable_requiring_cleanup`, which would hold a reference to them until cleanup attempts to clean them up.

`cleanup_incremental_compaction_test` was adjusted to observe the sstables `on_delete` (by adding a new observer event) to detect the case where cleanup attempts to delete the leaked sstables and fails since they were already deleted from the file system by offstrategy compaction. The test fails with the fix and passes with it.

Fixes #14304

Closes #14858

* github.com:scylladb/scylladb:
  compaction_manager: on_compaction_completion: erase sstables from sstables_requiring_cleanup
  compaction/leveled_compaction_strategy: ideal_level_for_input: special case max_sstable_size==0
  sstable: add on_delete observer
  compaction_manager: add on_compaction_completion
  sstable_compaction_test: cleanup_incremental_compaction_test: verify sstables_requiring_cleanup is empty
2023-08-09 11:03:45 +03:00
Botond Dénes
69d6778daf Merge 'build: cmake: fixes for the release build' from Kefu Chai
before this change, we use generator expression to initialize CMAKE_CXX_FLAGS_RELEASE, this has two problems:

1. the generator expression is not expanded when setting a regular variable.
2. the ending ">" is missing in one of the generator expression.
3. the parameters are not separated with ";"

so address them, let's just

* use `add_compile_options()` directly, as the corresponding `mode.${build_mode}.cmake` is only included when the "${build_mode}" is used.
* add comma in between the command line options.
* add the missing closing ">"

Closes #14996

* github.com:scylladb/scylladb:
  build: cmake: pass --gc-sections to ld not ar
  build: cmake: use add_compile_options() in release build
2023-08-09 09:55:02 +03:00
Kefu Chai
47c9b25bac compaction_manager: correct comment on compaction_task_executor::state
when it comes to `regular_compaction_task_executor`, we repeat the
compaction until the compaction can not proceed, so after an iteration
of compaction completes successfully, the task can still continue with
yet another round of the compaction as it sees appropriate. so let's
update the comment to reflect this fact.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes #14891
2023-08-09 09:49:18 +03:00
Kefu Chai
6dc885a8e2 compaction: mark more member variables const
quite a few member variables serves as the configuration for
a given compaction, they are immutable in the life cycle of it,
so for better readability, let's mark them `const`.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes #14981
2023-08-09 09:28:44 +03:00
Botond Dénes
5f65ac73ed Merge 'Remove qctx' from Pavel Emelyanov
The only place that still calls it is static force_blocking_flush method. If can be made non-static already. Also, while at it, coroutinize some system_keyspace methods and fix a FIXME regarding replica::database access in it.

Closes #14984

* github.com:scylladb/scylladb:
  code: Remove query-context.hh
  code: Remove qctx
  system_keyspace: Use system_keyspace's container() to flush
  system_keyspace: Make force_blocking_flush() non-static
  system_keyspace: Coroutinize update_tokens()
  system_keyspace: Coroutinize save_truncation_record()
2023-08-09 09:27:53 +03:00