Commit Graph

48496 Commits

Author SHA1 Message Date
Patryk Jędrzejczak
b4e64e5adf test: cluster: util: handle group 0 changes after token ring changes in wait_for_token_ring_and_group0_consistency
In the Raft-based topology, a decommissioning node is removed from group
0 after the decommission request is considered finished (and the token
ring is updated). `wait_for_token_ring_and_group0_consistency` doesn't
handle such a case; it only handles cases where the token ring is
updated later. We fix this in this commit.

We rely on the new implementation of
`wait_for_token_ring_and_group0_consistency` in the following commit to
fix flakiness of some tests.

We also update the obsolete docstring in this commit.

(cherry picked from commit e41fc841cd)
2025-09-10 17:49:12 +00:00
Dawid Mędrek
3dac49c62f test/perf: Adjust tablet_load_balancing.cc to RF-rack-validity
We modify the logic to make sure that all of the keyspaces that the test
creates are RF-rack-valid. For that, we distribute the nodes across two
DCs and as many racks as the provided replication factor.

That may have an effect on the load balancing logic, but since this is
a performance test and since tablet load balancing is still taking place,
it should be acceptable.

This commit also finishes work in adjusting perf tests to pass with
the `rf_rack_valid_keyspaces` configuration option enabled. The remaining
tests either don't attempt to create keyspaces or they already create
RF-rack-valid keyspaces.

We don't need to explicitly enable the configuration option. It's already
enabled by default by `cql_test_config`. The reason why we haven't run into
any issue because of that is that performance tests are not part of our CI.

Fixes scylladb/scylladb#25127

Closes scylladb/scylladb#25728

(cherry picked from commit 789a4a1ce7)

Closes scylladb/scylladb#25922
2025-09-10 10:30:40 +03:00
Asias He
ac88ea8152 streaming: Fix use after move in the tablet_stream_files_handler
The files object is moved before the log when stream finishes. We've
logged the files when the stream starts. Skip it in the end of
streaming.

Fixes #25830

Closes scylladb/scylladb#25835

(cherry picked from commit 451e1ec659)

Closes scylladb/scylladb#25891
2025-09-10 10:30:11 +03:00
Wojciech Mitros
055a6c2cee storage_proxy: send hints to pending replicas
Consider the following scenario:
- Current replica set is [A, B, C]
- write succeeds on [A, B], and a hint is logged for node C
- before the hint is replayed, D bootstraps and the token migrates from C to D
- hint is replayed to node C while D is pending, but it's too late, since streaming for that token is already done
- C is cleaned up, replayed data is lost, and D has a stale copy until next repair.
In the scenario we effectively fail to send the hint. This scenario is also more likely to happen with tablets,
as it can happen for every tablet migration.

This issue is particularly detrimental to materialized views. View updates use hints by default and a specific
view update may be sent to just one view replica (when a single base replica has a different row state due to
reordering or missed writes). When we lose a hint for such a view update, we can generate a persistent inconsistency
between the base and view - ghost rows can appear due to a lost tombstone and rows may be missing in the view due
to a lost row update. Such inconsistencies can't be fixed neither by repairing the view or the base table.

To handle this, in this patch we add the pending replicas to the list of targets of each hint, even if the original
target is still alive.

This will cause some updates to be redundant. These updates are probably unavoidable for now, but they shouldn't
be too common either. The scenarios for them are:
1. managing to send the hint to the source of a migrating replica before streaming that its token - the write will
arrive on the pending replica anyway in streaming
2. the hint target not being the source of the migration - if we managed to apply the original write of the hint to
the actual source of the migration, the pending replica will get it during streaming
3. sending the same hint to many targets at a similar time - while sending to each target, we'll see the same pending
replica for the hint so we'll send it multiple times
4. possible retries where even though the hint was successfully sent to the main target, we failed to send it to the
pending replica, so we need to retry the entire write

This patch handles both tablet migrations and tablet rebuilds. In the future, for tablet migrations, we can avoid
sending the hint to pending replias if the hint target is not the source fo the migration, which would allow us to
avoid the redundant writes 2 and 3. For rack-aware RF, this will be as simple as checking whether the replicas are
in the same rack.

We also add a test case reproducing the issue.

Co-Authored-By: Raphael S. Carvalho <raphaelsc@scylladb.com>

Fixes https://github.com/scylladb/scylladb/issues/19835

Closes scylladb/scylladb#25590

(cherry picked from commit 10b8e1c51c)

Closes scylladb/scylladb#25882
2025-09-10 10:29:52 +03:00
Pavel Emelyanov
81e4c65f8c Merge '[Backport 2025.3] Allow users to SELECT from CDC log tables they created.' from Scylladb[bot]
Before the patch, user with CREATE access could create a table with CDC or alter the table enabling CDC, but could not query a SELECT on the CDC table they created.
It was due to the fact, the SELECT permission was checked on the CDC log, and later it's "parent" - the keyspace, but not the base table, on which the user had SELECT permission automatically granted on CREATE.

This patch matches the behavior of querying the CDC log to the one implemented for Materialized Views:
1. No new permissions are granted on CREATE.
2. When querying SELECT, the permissions on base table SELECT are checked.

Fixes: https://github.com/scylladb/scylladb/issues/19798
Fixes: VECTOR-151

- (cherry picked from commit be54346846)

- (cherry picked from commit 5e72d71188)

Parent PR: #25797

Closes scylladb/scylladb#25870

* github.com:scylladb/scylladb:
  cqlpy/test_permissions: run the reproducer tests for #19798
  select_statement: check for access to CDC base table
2025-09-10 10:29:10 +03:00
Pavel Emelyanov
6977c5eaf1 s3: Export memory usage gauge (metrics)
The memory usage is tracked with the help of a semaphore, so just export
its "consumed" units.

One tricky place here is the need to skip metrics registration for
scylla-sstable tool. The thing is that the tools starts the storage
manager and sstables manager on start and then some of tool's operations
may want to start both managers again (via cql environment) causing
double metrics registration exception.

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

Closes scylladb/scylladb#25769

(cherry picked from commit b26816f80d)

Closes scylladb/scylladb#25865
2025-09-10 10:28:39 +03:00
Yaron Kaikov
bdec3b2bc5 build_docker.sh: enable debug symboles installation
Adding the latest scylla.repo location to our docker container, this
will allow installation scylla-debuginfo package in case it's needed

Fixes: https://github.com/scylladb/scylladb/issues/24271

Closes scylladb/scylladb#25646

(cherry picked from commit d57741edc2)

Closes scylladb/scylladb#25893
2025-09-09 11:41:17 +03:00
Patryk Jędrzejczak
2792fd6383 Merge '[Backport 2025.3] gossiper: fix issues in processing gossip status during the startup and when messages are delayed to avoid empty host ids' from Scylladb[bot]
Populate the local state during gossiper initialization in start_gossiping, preventing an empty state from being added to _endpoint_state_map and returned in get_endpoint_states responses, that was causing an 'empty host id issue' on the other nodes during nodes restart.

Check for a race condition in do_apply_state_locally In do_apply_state_locally, a race condition can occur if a task is suspended at a preemption point while the node entry is not locked.
During this time, the host may be removed from _endpoint_state_map. When the task resumes, this can lead to inserting an entry with an empty host ID into the map, causing various errors, including a node crash.

This change adds a check after locking the map entry: if a gossip ACK update does not contain a host ID, we verify that an entry with that host ID still exists in the gossiper’s _endpoint_state_map.

Fixes https://github.com/scylladb/scylladb/issues/25831
Fixes https://github.com/scylladb/scylladb/issues/25803
Fixes https://github.com/scylladb/scylladb/issues/25702
Fixes https://github.com/scylladb/scylladb/issues/25621

Ref https://github.com/scylladb/scylla-enterprise/issues/5613

Backport: The issue affects all current releases(2025.x), therefore this PR needs to be backported to all 2025.1-2025.3.

- (cherry picked from commit 28e0f42a83)

- (cherry picked from commit f08df7c9d7)

- (cherry picked from commit 775642ea23)

- (cherry picked from commit b34d543f30)

Parent PR: #25849

Closes scylladb/scylladb#25898

* https://github.com/scylladb/scylladb:
  gossiper: fix empty initial local node state
  gossiper: add test for a race condition in start_gossiping
  gossiper: check for a race condition in `do_apply_state_locally`
  test/gossiper: add reproducible test for race condition during node decommission
2025-09-09 10:00:30 +02:00
Sergey Zolotukhin
41dd29f5a3 gossiper: fix empty initial local node state
This change removes the addition of an empty state to `_endpoint_state_map`.
Instead, a new state is created locally and then published via replicate,
avoiding the issue of an empty state existing in `_endpoint_state_map`
before the preemption point. Since this resolves the issue tested in
`test_gossiper_empty_self_id_on_shadow_round`, the `xfail` mark has been removed.

Fixes: scylladb/scylladb#25831
(cherry picked from commit b34d543f30)
2025-09-08 21:55:16 +00:00
Sergey Zolotukhin
13f43e2872 gossiper: add test for a race condition in start_gossiping
This change adds a test for a race condition in `start_gossiping` that
can lead to an empty self state sent in `gossip_get_endpoint_states_response`.

Test for scylladb/scylladb#25831

(cherry picked from commit 775642ea23)
2025-09-08 21:55:16 +00:00
Sergey Zolotukhin
ec85ebf419 gossiper: check for a race condition in do_apply_state_locally
In do_apply_state_locally, a race condition can occur if a task is
suspended at a preemption point while the node entry is not locked.
During this time, the host may be removed from _endpoint_state_map.
When the task resumes, this can lead to inserting an entry with an
empty host ID into the map, causing various errors, including a node
crash.

This change
1. adds a check after locking the map entry: if a gossip ACK update
   does not contain a host ID, we verify that an entry with that host ID
   still exists in the gossiper’s _endpoint_state_map.
2. Removes xfail from the test_gossiper_race test since the issue is now
   fixed.
3. Adds exception handling in `do_shadow_round` to skip responses from
   nodes that sent an empty host ID.

This re-applies the commit 13392a40d4 that
was reverted in 46aa59fe49, after fixing
the issues that caused the CI to fail.

Fixes: scylladb/scylladb#25702
Fixes: scylladb/scylladb#25621

Ref: scylladb/scylla-enterprise#5613
(cherry picked from commit f08df7c9d7)
2025-09-08 21:55:16 +00:00
Emil Maskovsky
b53a5f9b3d test/gossiper: add reproducible test for race condition during node decommission
This change introduces a targeted test that simulates the gossiper race
condition observed during node decommissioning. The test delays gossip
state application and host ID lookup to reliably reproduce the scenario
where `gossiper::get_host_id()` is called on a removed endpoint,
potentially triggering an abort in `apply_new_states`.

There is a specific error injection added to widen the race window, in
order to increase the likelihood of hitting the race condition. The
error injection is designed to delay the application of gossip state
updates, for the specific node that is being decommissioned. This should
then result in the server abort in the gossiper.

This re-applies the commit 5dac4b38fb that
was reverted in dc44fca67c, but modified
to relax the check from "on_internal_error" to a just warning log. The
more strict can be re-introduced later once we are sure that all
remaining problems are resolved and it will not break the CI.

Refs: scylladb/scylladb#25621
Fixes: scylladb/scylladb#25721
(cherry picked from commit 28e0f42a83)
2025-09-08 21:55:16 +00:00
Anna Stuchlik
acd4cbbbe1 doc: add support for i7i instances
This commit adds currently supported i7i and i7ie instances
to the list of instance recommendations.

Fixes https://github.com/scylladb/scylladb/issues/25808

Closes scylladb/scylladb#25817

(cherry picked from commit f66580a28f)

Closes scylladb/scylladb#25853
2025-09-08 10:40:52 +03:00
Dawid Pawlik
4303bb7d56 cqlpy/test_permissions: run the reproducer tests for #19798
Since the previous commit fixes the issue, we can remove the xfail mark.
The tests should pass now.

(cherry picked from commit 5e72d71188)
2025-09-08 07:39:52 +00:00
Dawid Pawlik
675f74b4b7 select_statement: check for access to CDC base table
Before the patch, user with CREATE access could create a table
with CDC or alter the table enabling CDC, but could not query
a SELECT on the CDC table they created.
It was due to the fact, the SELECT permission was checked on
the CDC log, and later it's "parent" - the keyspace,
but not thebase table, on which the user had SELECT permission
automatically granted on CREATE.

This patch matches the behaviour of querying the CDC log
to the one implemented for Materialized Views:
    1. No new permissions are granted on CREATE.
    2. When querying SELECT, the permissions on base table
SELECT are checked.

Fixes: #19798
(cherry picked from commit be54346846)
2025-09-08 07:39:52 +00:00
Avi Kivity
0900a88884 Merge 'auth: move passwords::check call to alien thread' from Andrzej Jackowski
Analysis of customer stalls revealed that the function `detail::hash_with_salt` (invoked by `passwords::check`) often blocks the reactor. Internally, this function uses the external `crypt_r` function to compute password hashes, which is CPU-intensive.

This PR addresses the issue in two ways:
1) `sha-512` is now the only password hashing scheme for new passwords (it was already the common-case).
2) `passwords::check` is moved to a dedicated alien thread.

Regarding point 1: before this change, the following hashing schemes were supported by     `identify_best_supported_scheme()`: bcrypt_y, bcrypt_a, SHA-512, SHA-256, and MD5. The reason for this was that the `crypt_r` function used for password hashing comes from an external library (currently `libxcrypt`), and the supported hashing algorithms vary depending on the library in use. However:
- The bcrypt schemes never worked properly because their prefixes lack the required round count (e.g. `$2y$` instead of `$2y$05$`). Moreover, bcrypt is slower than SHA-512, so it  not good idea to fix or use it.
- SHA-256 and SHA-512 both belong to the SHA-2 family. Libraries that support one almost always support the other, so it’s very unlikely to find SHA-256 without SHA-512.
- MD5 is no longer considered secure for password hashing.

Regarding point 2: the `passwords::check` call now runs on a shared alien thread created at database startup. An `std::mutex` synchronizes that thread with the shards. In theory this could introduce a frequent lock contention, but in practice each shard handles only a few hundred new connections per second—even during storms. There is already `_conns_cpu_concurrency_semaphore` in `generic_server` limits the number of concurrent connection handlers.

Fixes https://github.com/scylladb/scylladb/issues/24524

Backport not needed, as it is a new feature.

Closes scylladb/scylladb#24924

* github.com:scylladb/scylladb:
  main: utils: add thread names to alien workers
  auth: move passwords::check call to alien thread
  test: wait for 3 clients with given username in test_service_level_api
  auth: refactor password checking in password_authenticator
  auth: make SHA-512 the only password hashing scheme for new passwords
  auth: whitespace change in identify_best_supported_scheme()
  auth: require scheme as parameter for `generate_salt`
  auth: check password hashing scheme support on authenticator start

(cherry picked from commit c762425ea7)
2025-09-07 13:38:33 +03:00
Calle Wilund
2bbf3cf669 system_keyspace: Prune dropped tables from truncation on start/drop
Fixes #25683

Once a table drop is complete, there should be no reason to retain
truncation records for it, as any replay should skip mutations
anyway (no CF), and iff we somehow resurrect a dropped table,
this replay-resurrected data is the least problem anyway.

Adds a prune phase to the startup drop_truncation_rp_records run,
which ignores updating, and instead deletes records for non-existant
tables (which should patch any existing servers with lingering data
as well).

Also does an explicit delete of records on actual table DROP, to
ensure we don't grow this table more than needed even in long
uptime nodes.

Small unit test included.

Closes scylladb/scylladb#25699

(cherry picked from commit bc20861afb)

Closes scylladb/scylladb#25815
scylla-2025.3.1 scylla-2025.3.1-candidate-20250907021632
2025-09-05 19:02:39 +03:00
Botond Dénes
c30c1ec40a Merge '[Backport 2025.3] drop table: fix crash on drop table with concurrent cleanup' from Scylladb[bot]
Consider the following scenario:

- A tablet is migrated away from a shard
- The tablet cleanup stage closes the storage group's async_gate
- A drop table runs truncate which attempts to disable compaction on the tablet with its gate closed. This fails, because table::parallel_foreach_compaction_group() ultimately calls storage_group_manager::parallel_foreach_storage_group() which will not disable compaction if it can't hold the storage group's gate
- Truncate calls table::discard_sstables() which checks if the compaction has been disabled, and because it hasn't, it then runs on_internal_error() with "compaction not disabled on table ks.cf during TRUNCATE" which causes a crash

Fixes: #25706

This needs to be backported to all supported versions with tablets

- (cherry picked from commit a0934cf80d)

- (cherry picked from commit 1b8a44af75)

Parent PR: #25708

Closes scylladb/scylladb#25785

* github.com:scylladb/scylladb:
  test: reproducer and test for drop with concurrent cleanup
  truncate: check for closed storage group's gate in discard_sstables
2025-09-05 19:02:04 +03:00
Andrei Chekun
2ee1082561 test.py: modify run to use different junit output filenames
Currently, run will execute twice pytest without modifying the path of the
JUnit XML report. This leads that the second execution of the pytest
will override the report. This PR fixing this issue so both reports will
be stored.

Closes scylladb/scylladb#25726

(cherry picked from commit e55c8a9936)

Closes scylladb/scylladb#25778
2025-09-05 19:01:22 +03:00
Pavel Emelyanov
f1e3dedcd6 Revert "test/gossiper: add reproducible test for race condition during node decommission"
This reverts commit 4e17330a1b because
parent PR had been reverted as per #25803
2025-09-05 10:08:29 +03:00
Nadav Har'El
5d6aa6e8c2 utils, alternator: fix detection of invalid base-64
This patch fixes an error-path bug in the base-64 decoding code in
utils/base64.cc, which among other things is used in Alternator to decode
blobs in JSON requests.

The base-64 decoding code has a lookup table, which was wrongly sized 255
bytes, but needed to be 256 bytes. This meant that if the byte 255 (0xFF)
was included in an invalid base-64 string, instead of detecting that this
is an invalid byte (since the only valid bytes in a base-64 string are
A-Z,a-z,0-9,+,/ and =), the code would either think it's valid with a
nonsense 6-bit part, or even crash on an out-of-bounds read.

Besides the trivial fix, this patch also includes a reproducing test,
which tries to write a blob as a supposedly base-64 encoded string with
a 0xFF byte in it. The test fails before this patch (the write succeeds,
unexpectedly), and passes after this patch (the write fails as
expected). The test also passes on DynamoDB.

Fixes #25701

Signed-off-by: Nadav Har'El <nyh@scylladb.com>

Closes scylladb/scylladb#25705

(cherry picked from commit ff91027eac)

Closes scylladb/scylladb#25767
2025-09-04 11:38:55 +03:00
Pavel Emelyanov
1c8e10231a Merge '[Backport 2025.3] service/qos: Modularize service level controller to avoid invalid access to auth::service' from Scylladb[bot]
Move management over effective service levels from `service_level_controller`
to a new dedicated type -- `auth_integration`.

Before these changes, it was possible for the service level controller to try
to access `auth::service` after it was deinitialized. For instance, it could
happen when reloading the cache. That HAS happened as described in the following
issue: scylladb/scylladb#24792.

Although the problem might have been mitigated or even resolved in
scylladb/scylladb@10214e13bd, it's not clear
how the service will be used in the future. It's best to prevent similar bugs
than trying to fix them later on.

The logic responsible for preventing to access an uninitialized `auth::service`
was also either non-existent, complex, or non-sufficient.

To prevent accessing `auth::service` by the service level controller, we extract
the relevant portion of the code to a separate entity -- `auth_integration`.
It's an internal helper type whose sole purpose is to manage effective service
levels.

Thanks to that, we were able to nest the lifetime of `auth_integration` within
the lifetime of `auth::service`. It's now impossible to attempt to dereference
it while it's uninitialized.

If a bug related to an invalid access is spotted again, though, it might also
be easier to debug it now.

There should be no visible change to the users of the interface of the service
level controller. We strived to make the patch minimal, and the only affected
part of the logic should be related to how `auth::service` is accessed.

The relevant portion of the initialization and deinitialization flow:

(a) Before the changes:

1. Initialize `service_level_controller`. Pass a reference to an uninitialized
   `auth::service` to it.
2. Initialize other services.
3. Initialize and start `auth::service`.
4. (work)
5. Stop and deinitialize `auth::service`.
6. Deinitialize other services.
7. Deinitialize `service_level_controller`.

(b) After the changes:

1. Initialize `service_level_controller`. Pass a reference to an uninitialized
   `auth::service` to it. (*)
2. Initialize other services.
3. Initialize and start `auth::service`.
4. Initialize `auth_integration`. Register it in `service_level_controller`.
5. (work)
6. Unregister `auth_integration` in `service_level_controller` and deinitialize
   it.
7. Stop and deinitialize `auth::service`.
8. Deinitialize other services.
9. Deinitialize `service_level_controller`.

(*):
    The reference to `auth::service` in `service_level_controller` is still
    necessary. We need to access the service when dropping a distributed
    service level.

    Although it would be best to cut that link between the service level
    controller and `auth::service` too, effectively separating the entities,
    it would require more work, so we leave it as-is for now.

    It shouldn't prove problematic as far as accessing an uninitialized service
    goes. Trying to drop a service level at the point when we're de-initializing
    auth should be impossible.

    For more context, see the function `drop_distributed_service_level` in
    `service_level_controller`.

A trivial test has been included in the PR. Although its value is questionable
as we only try to reload the service level cache at a specific moment, it's
probably the best we can deliver to provide a reproducer of the issue this patch
is resolving.

Fixes scylladb/scylladb#24792

Backport: The impact of the bug was minimal as it only affected the shutdown.
However, since CI is failing because of it, let's backport the change to all
supported versions.

- (cherry picked from commit 7d0086b093)

- (cherry picked from commit 34afb6cdd9)

- (cherry picked from commit e929279d74)

- (cherry picked from commit dd5a35dc67)

- (cherry picked from commit fc1c41536c)

Parent PR: #25478

Closes scylladb/scylladb#25753

* github.com:scylladb/scylladb:
  service/qos: Move effective SL cache to auth_integration
  service/qos: Add auth::service to auth_integration
  service/qos: Reload effective SL cache conditionally
  service/qos: Add gate to auth_integration
  service/qos: Introduce auth_integration
2025-09-04 11:38:17 +03:00
Pavel Emelyanov
d484837a2a Merge '[Backport 2025.3] db/hints: Improve logs' from Scylladb[bot]
Before these changes, the logs in hinted handoff often didn't provide
crucial information like the identifier of the node that hints were
being sent to. Also, some of the logs were misleading and referred to
other places in the code than the one where an exception or some other
situation really occurred.

We modify those logs, extending them by more valuable information
and fixing existing issues. What's more, all of the logs in
`hint_endpoint_manager` and `hint_sender` follow a consistent format
now:

```
<class_name>[<destination host ID>]:<function_name>: <message>
```

This way, we should always have AT LEAST the basic information.

Fixes scylladb/scylladb#25466

Backport:
There is no risk in backporting these changes. They only have
impact on the logs. On the other hand, they might prove helpful
when debugging an issue in hinted handoff.

- (cherry picked from commit 2327d4dfa3)

- (cherry picked from commit d7bc9edc6c)

- (cherry picked from commit 6f1fb7cfb5)

Parent PR: #25470

Closes scylladb/scylladb#25538

* github.com:scylladb/scylladb:
  db/hints: Add new logs
  db/hints: Adjust log levels
  db/hints: Improve logs
2025-09-04 11:36:30 +03:00
Pavel Emelyanov
ad6dbcfdc5 Merge '[Backport 2025.3] generic server: 2 step shutdown' from Scylladb[bot]
This PR implements solution proposed in scylladb/scylladb#24481

Instead of terminating connections immediately, the shutdown now proceeds in two stages: first closing the receive (input) side to stop new requests, then waiting for all active requests to complete before fully closing the connections.

The updated shutdown process is as follows:

1. Initial Shutdown Phase
   * Close the accept gate to block new incoming connections.
   * Abort all accept() calls.
   * For all active connections:
      * Close only the input side of the connection to prevent new requests.
      * Keep the output side open to allow responses to be sent.

2. Drain Phase
   * Wait for all in-progress requests to either complete or fail.

3. Final Shutdown Phase
   * Fully close all connections.

Fixes scylladb/scylladb#24481

- (cherry picked from commit 122e940872)

- (cherry picked from commit 3848d10a8d)

- (cherry picked from commit 3610cf0bfd)

- (cherry picked from commit 27b3d5b415)

- (cherry picked from commit 061089389c)

- (cherry picked from commit 7334bf36a4)

- (cherry picked from commit ea311be12b)

- (cherry picked from commit 4f63e1df58)

Parent PR: #24499

Closes scylladb/scylladb#25519

* github.com:scylladb/scylladb:
  test: Set `request_timeout_on_shutdown_in_seconds` to `request_timeout_in_ms`,  decrease request timeout.
  generic_server: Two-step connection shutdown.
  transport: consmetic change, remove extra blanks.
  transport: Handle sleep aborted exception in sleep_until_timeout_passes
  generic_server: replace empty destructor with `= default`
  generic_server: refactor connection::shutdown to use `shutdown_input` and `shutdown_output`
  generic_server: add `shutdown_input` and `shutdown_output` functions to `connection` class.
  test: Add test for query execution during CQL server shutdown
2025-09-04 11:35:55 +03:00
Ran Regev
a79cbd9a9a docs: backup and restore feature
added backup and restore as a feature
to documentation

Signed-off-by: Ran Regev <ran.regev@scylladb.com>

Closes scylladb/scylladb#25608

(cherry picked from commit 515d9f3e21)

Closes scylladb/scylladb#25748
2025-09-03 12:37:45 +03:00
Emil Maskovsky
4e17330a1b test/gossiper: add reproducible test for race condition during node decommission
This change introduces a targeted test that simulates the gossiper race
condition observed during node decommissioning. The test delays gossip
state application and host ID lookup to reliably reproduce the scenario
where `gossiper::get_host_id()` is called on a removed endpoint,
potentially triggering an abort in `apply_new_states`.

There is a specific error injection added to widen the race window, in
order to increase the likelihood of hitting the race condition. The
error injection is designed to delay the application of gossip state
updates, for the specific node that is being decommissioned. This should
then result in the server abort in the gossiper.

Refs: scylladb/scylladb#25621
Fixes: scylladb/scylladb#25721

Backport: The test is primarily for an issue found in 2025.1, so it
needs to be backported to all the 2025.x branches.

Closes scylladb/scylladb#25685

(cherry picked from commit 5dac4b38fb)

Closes scylladb/scylladb#25781
2025-09-02 08:29:27 +02:00
Ferenc Szili
6a7a5f5edc test: reproducer and test for drop with concurrent cleanup
This change adds a reproducer and test for issue #25706

(cherry picked from commit 1b8a44af75)
2025-09-02 02:18:56 +00:00
Ferenc Szili
34b403747a truncate: check for closed storage group's gate in discard_sstables
Consider the following scenario:

- A tablet is migrated away from a shard
- The tablet cleanup stage closes the storage group's async_gate
- A drop table runs truncate which attempts to disable compaction on the
  tablet with its gate closed. This fails, because
  table::parallel_foreach_compaction_group() ultimately calls
  storage_group_manager::parallel_foreach_storage_group() which will not
  disable compaction if it can't hold the storage group's gate
- Truncate calls table::discard_sstables() which checks if the compaction
  has been disabled, and because it hasn't, it then runs
  on_internal_error() with "compaction not disabled on table ks.cf during
  TRUNCATE" which causes a crash

This patch makes dicard_sstables check if the storage group's gate is
closed whend checking for disabled compaction.

(cherry picked from commit a0934cf80d)
2025-09-02 02:18:56 +00:00
Piotr Dulikowski
debc637ac1 Merge '[Backport 2025.3] system_keyspace: add peers cache to get_ip_from_peers_table' from Scylladb[bot]
The gossiper can call `storage_service::on_change` frequently (see  scylladb/scylla-enterprise#5613), which may cause high CPU load and even trigger OOMs or related issues.

This PR adds a temporary cache for `system.peers` to resolve host_id -> ip without hitting storage on every call. The cache is short-lived to handle the unlikely case where `system.peers` is updated directly via CQL.

This is a temporary fix; a more thorough solution is tracked in https://github.com/scylladb/scylladb/issues/25620.

Fixes scylladb/scylladb#25660

backport: this patch needs to be backported to all supported versions (2025.1/2/3).

- (cherry picked from commit 91c633371e)

- (cherry picked from commit de5dc4c362)

- (cherry picked from commit 4b907c7711)

Parent PR: #25658

Closes scylladb/scylladb#25766

* github.com:scylladb/scylladb:
  storage_service: move get_host_id_to_ip_map to system_keyspace
  system_keyspace: use peers cache in get_ip_from_peers_table
  storage_service: move get_ip_from_peers_table to system_keyspace
2025-09-01 21:21:26 +02:00
Taras Veretilnyk
ddb7c8ea12 keys: from_nodetool_style_string don't split single partition keys
Users with single-column partition keys that contain colon characters
were unable to use certain REST APIs and 'nodetool' commands, because the
API split key by colon regardless of the partition key schema.

Affected commands:
- 'nodetool getendpoints'
- 'nodetool getsstables'
Affected endpoints:
- '/column_family/sstables/by_key'
- '/storage_service/natural_endpoints'

Refs: #16596 - This does not fully fix the issue, as users with compound
keys will face the issue if any column of the partition key contains
a colon character.

Closes scylladb/scylladb#24829

Closes scylladb/scylladb#25565
2025-09-01 15:36:56 +03:00
Petr Gusev
c4386c2aa4 storage_service: move get_host_id_to_ip_map to system_keyspace
Reimplemented the function to use the peers cache. It could be replaced
with get_ip_from_peers_table, but that would create a coroutine frame for
each call.

(cherry picked from commit 4b907c7711)
2025-09-01 11:22:55 +02:00
Petr Gusev
7ec3e166c6 system_keyspace: use peers cache in get_ip_from_peers_table
The storage_service::on_change method can be called quite often
by the gossiper, see scylladb/scylla-enterprise#5613. In this commit
we introduce a temporal cache for system.peers so that we don't have
to go to the storage each time we need to resolve host_id -> ip.
We keep the cache only for a small amount of time to handle the
(unlikely) scenario when the user wants to update system.peers table
from CQL.

Fixes scylladb/scylladb#25660

(cherry picked from commit de5dc4c362)
2025-09-01 11:22:05 +02:00
Petr Gusev
5f8664757a storage_service: move get_ip_from_peers_table to system_keyspace
We plan to add a cache to get_ip_from_peers_table in upcoming commits.
It's more convenient to do this from system_keyspace, since the only two
methods that mutate system.peers (remove_endpoint and update_peers_info)
are already there.

(cherry picked from commit 91c633371e)
2025-09-01 11:21:55 +02:00
Calle Wilund
2e08d651a8 system_keyspace: Limit parallelism in drop_truncation_records
Fixes #25682
Refs scylla-enterprise#5580

If the truncation table is large in entries, we might create a
huge parallel execution, quite possibly consuming loads of resources
doing something quite trivial.
Limit concurrency to a small-ish number

Closes scylladb/scylladb#25678

(cherry picked from commit 2eccd17e70)

Closes scylladb/scylladb#25751
2025-09-01 09:13:44 +03:00
Emil Maskovsky
05f8b0d543 storage: pass host_id as parameter to maybe_reconnect_to_preferred_ip()
Previously, `maybe_reconnect_to_preferred_ip()` retrieved the host ID
using `gossiper::get_host_id()`. Since the host ID is already available
in the calling function, we now pass it directly as a parameter.

This change simplifies the code and eliminates a potential race condition
where `gossiper::get_host_id()` could fail, as described in scylladb/scylladb#25621.

Refs: scylladb/scylladb#25621
Fixes: scylladb/scylladb#25715

Backport: Recommended for 2025.x release branches to avoid potential issues
from unnecessary calls to `gossiper::get_host_id()` in subscribers.

(cherry picked from commit cfc87746b6)

Closes scylladb/scylladb#25718
2025-09-01 09:13:21 +03:00
kendrick-ren
d7a36c6d8e Update launch-on-gcp.rst
Add the missing '=' mark in --zone option. Otherwise the command complains.

Closes scylladb/scylladb#25471

(cherry picked from commit d6e62aeb6a)

Closes scylladb/scylladb#25645
2025-09-01 09:11:21 +03:00
Benny Halevy
2a6791d246 api: storage_service: fix token_range documentation
Note that the token_range type is used only by describe_ring.

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

Closes scylladb/scylladb#25609

(cherry picked from commit 45c496c276)

Closes scylladb/scylladb#25640
2025-09-01 09:11:12 +03:00
Pavel Emelyanov
95d953b7b9 Merge '[Backport 2025.3] cql3: Warn when creating RF-rack-invalid keyspace' from Scylladb[bot]
Although RF-rack-valid keyspaces are not universally enforced
yet (they're governed by the configuration option
`rf_rack_valid_keyspaces`), we'd like to encourage the user to
abide by the restriction.

To that end, we're introducing a warning when creating or
altering a keyspace. If the configuration option is disabled,
but the user is trying to create an RF-rack-invalid keyspace,
they'll receive a warning.

If the option is turned off, we will also log all of the
RF-rack-invalid keyspaces at start-up.

We provide validation tests.

Fixes scylladb/scylladb#23330

Backport: we'd like to encourage the user to abide by the restriction
even when they don't enforce it to make it easier in the future to
adjust the schema when there's no way to disable it anymore. Because
of that, we'd like to backport it to all relevant versions, starting with 2025.1.

- (cherry picked from commit 60ea22d887)

- (cherry picked from commit af8a3dd17b)

- (cherry picked from commit 837d267cbf)

Parent PR: #24785

Closes scylladb/scylladb#25635

* github.com:scylladb/scylladb:
  main: Log RF-rack-invalid keyspaces at startup
  cql3/statements: Fix indentation
  cql3: Warn when creating RF-rack-invalid keyspace
2025-09-01 09:11:01 +03:00
David Garcia
3db935f30f docs: expose alternator metrics
Renders in the docs some metrics introduced in https://github.com/scylladb/scylladb/pull/24046/files that were not being displayed in https://docs.scylladb.com/manual/stable/reference/metrics.html

Closes scylladb/scylladb#25561

(cherry picked from commit c3c70ba73f)

Closes scylladb/scylladb#25629
2025-09-01 09:10:41 +03:00
Michał Chojnowski
05ea29ee8d sstables/types.hh: fix fmt::formatter<sstables::deletion_time>
Obvious typo.

Fixes scylladb/scylladb#25556

Closes scylladb/scylladb#25557

(cherry picked from commit c1b513048c)

Closes scylladb/scylladb#25588
2025-09-01 09:10:21 +03:00
Dawid Mędrek
7f58681482 db/commitlog: Extend error messages for corrupted data
We're providing additional information in error messages when throwing
an exception related to data corruption: when a segment is truncated
and when it's content is invalid. That might prove helpful when debugging.

Closes scylladb/scylladb#25190

(cherry picked from commit 408b45fa7e)

Closes scylladb/scylladb#25461
2025-09-01 09:08:29 +03:00
Andrei Chekun
8163f4edaa test.py: use unique hostname for Minio
To avoid situation that port is occupied on localhost, use unique
hostname for Minio

(cherry picked from commit c6c3e9f492)

Closes scylladb/scylladb#24775
2025-09-01 08:59:00 +03:00
Pavel Emelyanov
0c6c507704 Merge '[Backport 2025.3] test.py: add missed parameters that should be passed from test.py to pytest' from Scylladb[bot]
Several parameters that `test.py` should pass to pytest->boost were missing. This PR adds handling these parameters: `--random-seed` and `--x-log2-compaction-groups`

Since this code affected with this issue in 2025.3 and this is only framework change, backport for that version needed.

Fixes: https://github.com/scylladb/scylladb/issues/24927

- (cherry picked from commit 71b875c932)

- (cherry picked from commit f7c7877ba6)

Parent PR: #24928

Closes scylladb/scylladb#25035

* github.com:scylladb/scylladb:
  test.py: add bypassing x_log2_compaction_groups to boost tests
  test.py: add bypassing random seed to boost tests
2025-09-01 08:58:48 +03:00
Jenkins Promoter
3da82e8572 Update pgo profiles - aarch64 2025-09-01 05:24:53 +03:00
Jenkins Promoter
16c7bd4c6e Update pgo profiles - x86_64 2025-09-01 05:01:14 +03:00
Jenkins Promoter
3c922d68f0 Update ScyllaDB version to: 2025.3.1 2025-08-31 11:05:24 +03:00
Calle Wilund
fe87af4674 commitlog: Ensure segment deletion is re-entrant
Fixes #25709

If we have large allocations, spanning more than one segment, and
the internal segment references from lead to secondary are the
only thing keeping a segment alive, the implicit drop in
discard_unused_segments and orphan_all can cause a recursive call
to discard_unused_segments, which in turn can lead to vector
corruption/crash, or even double free of segment (iterator confusion).

Need to separate the modification of the vector (_segments) from
actual releasing of objects. Using temporaries is the easiest
solution.

To further reduce recursion, we can also do an early clear of
segment dependencies in callbacks from segment release (cf release).

Closes scylladb/scylladb#25719

(cherry picked from commit cc9eb321a1)

Closes scylladb/scylladb#25756
2025-08-30 18:50:47 +03:00
Dawid Mędrek
5c947a936e service/qos: Move effective SL cache to auth_integration
Since `auth_integration` manages effective service levels, let's move
the relevant cache from `service_level_controller` to it.

(cherry picked from commit fc1c41536c)
2025-08-29 22:58:21 +00:00
Dawid Mędrek
fcdd21948d service/qos: Add auth::service to auth_integration
The new service, `auth_integration`, has taken over the responsibility
over managing effective service levels from `service_level_controller`.
However, before these changes, it still accessed `auth::service` via
the service level controller. Let's change that.

Note that we also remove a check that `auth::service` has been
initialized. It's not necessary anymore because the lifetime of
`auth_integration` is strictly nested within the lifetime of `auth::service`.

In actuality, `service_level_controller` should lose its reference to
`auth::service` completely. All of the management over effective service
levels has already been moved to `auth_integration`. However, the
referernce is still needed when dropping a distributed service level
because we need to update the corresponding attribute for relevant
roles.

That should not lead to invalid accesses, though. Dropping a service level
should not be possible when `auth::service` is not initialized.

(cherry picked from commit dd5a35dc67)
2025-08-29 22:58:21 +00:00
Dawid Mędrek
aea5805c1f service/qos: Reload effective SL cache conditionally
Since `service_level_controller` outlives `auth_integration`, it may
happen that we try to access it when it has already been deinitialized.
To prevent that, we only try to reload or clear the effective service
level cache when the object is still alive.

These changes solve an existing problem with an invalid memory access.
For more context, see issue scylladb/scylladb#24792.

We provide a reproducer test that consistently fails before these
changes but passes after them.

Fixes scylladb/scylladb#24792

(cherry picked from commit e929279d74)
2025-08-29 22:58:20 +00:00