Commit Graph

1418 Commits

Author SHA1 Message Date
Avi Kivity
861fb58e14 Merge 'vector: add support for vector type' from Dawid Pawlik
This pull request is an implementation of vector data type similar to one used by Apache Cassandra.

The patch contains:
- implementation of vector_type_impl class
- necessary functionalities similar to other data types
- support for serialization and deserialization of vectors
- support for Lua and JSON format
- valid CQL syntax for `vector<>` type
- `type_parser` support for vectors
- expression adjustments such as:
    - add `collection_constructor::style_type::vector`
    - rename `collection_constructor::style_type::list` to `collection_constructor::style_type::list_or_vector`
- vector type encoding (for drivers)
- unit tests
- cassandra compatibility tests
- necessary documentation

Co-authored-by: @janpiotrlakomy

Fixes https://github.com/scylladb/scylladb/issues/19455

Closes scylladb/scylladb#22488

* github.com:scylladb/scylladb:
  docs: add vector type documentation
  cassandra_tests: translate tests covering the vector type
  type_codec: add vector type encoding
  boost/expr_test: add vector expression tests
  expression: adjust collection constructor list style
  expression: add vector style type
  test/boost: add vector type cql_env boost tests
  test/boost: add vector type_parser tests
  type_parser: support vector type
  cql3: add vector type syntax
  types: implement vector_type_impl
2025-02-06 20:36:50 +02:00
Pavel Emelyanov
951625ca13 Merge 's3 client: add aws credentials providers' from Ernest Zaslavsky
This update introduces four types of credential providers:

1. Environment variables
2. Configuration file
3. AWS STS
4. EC2 Metadata service

The first two providers should only be used for testing and local runs. **They must NEVER be used in production.**

The last two providers are intended for use on real EC2 instances:

- **AWS STS**: Preferred method for obtaining temporary credentials using IAM roles.
- **EC2 Metadata Service**: Should be used as a last resort.

Additionally, a simple credentials provider chain is created. It queries each provider sequentially until valid credentials are obtained. If all providers fail, it returns an empty result.

fixes: #21828

Closes scylladb/scylladb#21830

* github.com:scylladb/scylladb:
  docs: update the `object_storage.md` and `admin.rst`
  aws creds: add STS and Instance Metadata service credentials providers
  aws creds: add env. and file credentials providers
  s3 creds: move credentials out of endpoint config
2025-02-06 11:12:37 +03:00
Ernest Zaslavsky
d534051bea aws creds: add env. and file credentials providers
This commit entirely removes credentials from the endpoint configuration. It also eliminates all instances of manually retrieving environment credentials. Instead, the construction of file and environment credentials has been moved to their respective providers. Additionally, a new aws_credentials_provider_chain class has been introduced to support chaining of multiple credential providers.
2025-02-05 14:57:19 +02:00
Ernest Zaslavsky
c911fc4f34 s3 creds: move credentials out of endpoint config
This commit refactors the way AWS credentials are managed in Scylla. Previously, credentials were included in the endpoint configuration. However, since credentials and endpoint configurations serve different purposes and may have different lifetimes, it’s more logical to manage them separately. Moving forward, credentials will be completely removed from the endpoint_config to ensure clear separation of concerns.
2025-02-04 16:45:23 +02:00
Ran Regev
edd56a2c1c moved cache files to db
As requested in #22097, moved the files
and fixed other includes and build system.

Fixes: #22097
Signed-off-by: Ran Regev <ran.regev@scylladb.com>

Closes scylladb/scylladb#22495
2025-02-04 12:21:31 +03:00
Kamil Braun
febd45861e test/lib: cql_test_env: make service shutdown more verbose
Introduce `defer_verbose_shutdown` in `cql_test_env` which logs
a message before and after shutting down a service, distinguishing
between success and failure.

The function is similar to the one in `main` but skips special error
handling logic applicable only to the main Scylla binary. The purpose
of the `cql_test_env` version of this function is only more verbose
logging. If necessary it can be extended in the future with additional
logic.

I estimated the impact on the size of produced log files using
`cdc_test` as an example:
```
$ build/dev/test/boost/combined_tests --run_test=cdc_test -- --smp=2 \
    >logfile 2>&1
$ du -b logfile
```

the result before this commit: 1964064 bytes, after: 2196432 bytes,
so estimated ~12% increase of log file size for boost tests that use
`cql_test_env`, assuming that the number of logs printed by each test is
similar to the logs printed by `cdc_test` (but I believe `cdc_test` is
one of the less verbose tests so this is an overestimate).

The motivation for this change is easier debugging of shutdown issues.
When investigating scylladb/scylladb#21983, where an exception is
thrown somewhere during the shutdown procedure, I found it hard to
pinpoint the service from which the exception originates. This change
will make it easier to debug issues like that by wrapping shutdown of
each service in a pair of messages logged when shutdown starts and when
it finishes (including when it fails). We should get more details on
this issue when it reproduces again in CI after this commit is merged
into `master`. (I failed to reproduce it locally with 1000 runs.)

Ref scylladb/scylladb#21983

Closes scylladb/scylladb#22566
2025-01-30 10:27:45 +03:00
Dawid Pawlik
489ab1345e boost/expr_test: add vector expression tests
Add and adjust tests using vector and list_or_vector style types.

Implemented utilities used in expr_test similar to those added
in 8f6309bd66.
2025-01-28 21:14:49 +01:00
Dawid Pawlik
ed49093a01 expression: adjust collection constructor list style
Like mentioned in the previous commit, this changes introduce usage
of vector style type and adjusts the functions using list style type
to distinguish vectors from lists.

Rename collection constructor style list to list_or_vector.
2025-01-28 21:14:49 +01:00
Botond Dénes
9fc14f203b Merge 'Simplify loading_cache_test and use manual_clock' from Benny Halevy
This series exposes a Clock template parameter for loading_cache so that the test could use
the manual_clock rather than the lowres_clock, since relying on the latter is flaky.

In addition, the test load function is simplified to sleep some small random time and co_return the expected string,
rather than reading it from a real file, since the latter's timing might also be flaky, and it out-of-scope for this test.

Fixes #20322

* The test was flaky forever, so backport is required for all live versions.

Closes scylladb/scylladb#22064

* github.com:scylladb/scylladb:
  tests: loading_cache_test: use manual_clock
  utils: loading_cache: make clock_type a template parameter
  test: loading_cache_test: use function-scope loader
  test: loading_cache_test: simlute loader using sleep
  test: lib: eventually: add sleep function param
  test: lib: eventually: make *EVENTUALLY_EQUAL inline functions
2025-01-27 13:13:41 +01:00
Pavel Emelyanov
ca9b59f3b2 storage_service: Drop sys_dist_ks argument from join_cluster()
Storage service has _sys_dist_ks onboard and can just use it

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2025-01-24 12:26:32 +03:00
Benny Halevy
32b7cab917 tests: loading_cache_test: use manual_clock
Relying on a real-time clock like lowres_clock
can be flaky (in particular in debug mode).
Use manual_clock instead to harden the test against
timing issues.

Fixes #20322

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
2025-01-23 09:28:08 +02:00
Benny Halevy
934a9d3fd6 test: lib: eventually: add sleep function param
To allow support for manual_clock instead of seastar::sleep.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
2025-01-23 09:28:05 +02:00
Benny Halevy
b509644972 test: lib: eventually: make *EVENTUALLY_EQUAL inline functions
rather then macros.

This is a first cleanup step before adding a sleep function
parameter to support also manual_clock.

Also, add a call to BOOST_REQUIRE_EQUAL/BOOST_CHECK_EQUAL,
respectively, to make an error more visible in the test log
since those entry points print the offending values
when not equal.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
2025-01-22 12:47:33 +02:00
Piotr Dulikowski
6aa962f5f4 Merge 'Add audit subsystem for database operations' from Paweł Zakrzewski
Introduces a comprehensive audit system to track database operations for security
and compliance purposes. This change includes:

Core Components:
- New audit subsystem for logging database operations
- Service level integration for proper resource management
- CQL statement tracking with operation categories
- Login process integration for tenant management

Key Features:
- Configurable audit logging (syslog/table)
- Operation categorization (QUERY/DML/DDL/DCL/AUTH/ADMIN)
- Selective auditing by keyspace/table
- Password sanitization in audit logs
- Service level shares support (1-1000) for workload prioritization
- Proper lifecycle management and cleanup

I ran the dtests for audit (manually enabled) and they pass.
The in-repo tests pass.

Notably, there should be no non-whitespace changes between this and scylla-enterprise

Fixes scylladb/scylla-enterprise#4999

Closes scylladb/scylladb#22147

* github.com:scylladb/scylladb:
  audit: Add shares support to service level management
  audit: Add service level support to CQL login process
  audit: Add support to CQL statements
  audit: Integrate audit subsystem into Scylla main process
  audit: Add documentation for the audit subsystem
  audit: Add the audit subsystem
2025-01-17 13:14:55 +01:00
Kamil Braun
89ee2a6834 Merge 'drop ip addresses from token metadata' from Gleb
Now that all topology related code uses host ids there is not point to
maintain ip to id (and back) mappings in the token metadata. After the
patch the mapping will be maintained in the gossiper only. The rest of
the system will use host ids and in rare cases where translation is
needed (mostly for UX compatibility reasons) the translation will be
done using gossiper.

Fixes: scylladb/scylla#21777

* 'gleb/drop-ip-from-tm-v3' of github.com:scylladb/scylla-dev: (57 commits)
  hint manager: do not translate ip to id in case hint manager is stopped already
  locator: token_metadata: drop update_host_id() function that does nothing now
  locator: topology: drop indexing by ips
  repair: drop unneeded code
  storage_service: use host_id to look for a node in on_alive handler
  storage_proxy: translate ips to ids in forward array using gossiper
  locator: topology: remove unused functions
  storage_service: check for outdated ip in on_change notification in the peers table
  storage_proxy: translate id to ip using address map in tablets's describe_ring code instead of taking one from the topology
  topology coordinator: change connection dropping code to work on host ids
  cql3: report host id instead of ip in error during SELECT FROM MUTATION_FRAGMENTS query
  locator: drop unused function from tablet_effective_replication_map
  api: view_build_statuses: do not use IP from the topology, but translate id to ip using address map instead
  locator: token_metadata: remove unused ip based functions
  locator: network_topology_strategy: use host_id based function to check number of endpoints in dcs
  gossiper: drop get_unreachable_token_owners functions
  storage_service: use gossiper to map ip to id in node_ops operations
  storage_service: fix indentation after the last patch
  storage_service: drop loops from node ops replace_prepare handling since there can be only one replacing node
  token_metadata: drop no longer used functions
  ...
2025-01-17 11:00:52 +01:00
Gleb Natapov
50fb22c8f9 locator: topology: drop indexing by ips
Do not track id to ip mapping in the topology class any longer. There
are no remaining users.
2025-01-16 16:37:08 +02:00
Gleb Natapov
1b6e1456e5 messaging_service: drop the usage of ip based token_metadata APIs
We want to drop ips from token_metadata so move to use host id based
counterparts. Messaging service gets a function that maps from ips to id
when is starts listening.
2025-01-16 16:37:06 +02:00
Paweł Zakrzewski
28bd699c51 audit: Add service level support to CQL login process
This change integrates service level functionality into the CQL authentication and connection handling:

- Add scheduling_group_name to client_data to track service level assignments
- Extend SASL challenge interface to expose authenticated username
- Modify connection processing to support tenant switching:
  - Add switch_tenant() method to handle scheduling group changes
  - Add process_until_tenant_switch() to handle request processing boundaries
  - Implement no_tenant() default executor
  - Add execute_under_tenant_type for scheduling group management

- Update connection lifecycle to properly handle service level changes:
  - Initialize connections with default scheduling group
  - Support dynamic scheduling group updates when service levels change
  - Ensure proper cleanup of scheduling group assignments

The changes enable proper scheduling group assignment and management based on
authenticated users' service levels, while maintaining backward compatibility
for connections without service level assignments.
2025-01-15 11:10:36 +01:00
Paweł Zakrzewski
384641194a audit: Add the audit subsystem
This change introduces a new audit subsystem that allows tracking and logging of database operations for security and compliance purposes. Key features include:

- Configurable audit logging to either syslog or a dedicated system table (audit.audit_log)
- Selective auditing based on:
  - Operation categories (QUERY, DML, DDL, DCL, AUTH, ADMIN)
  - Specific keyspaces
  - Specific tables
- New configuration options:
  - audit: Controls audit destination (none/syslog/table)
  - audit_categories: Comma-separated list of operation categories to audit
  - audit_tables: Specific tables to audit
  - audit_keyspaces: Specific keyspaces to audit
  - audit_unix_socket_path: Path for syslog socket
  - audit_syslog_write_buffer_size: Buffer size for syslog writes

The audit logs capture details including:
- Operation timestamp
- Node and client IP addresses
- Operation category and query
- Username
- Success/failure status
- Affected keyspace and table names
2025-01-15 11:10:35 +01:00
Piotr Dulikowski
72f28ce81e Merge 'main, view: Pair view builder drain with its start' from Dawid Mędrek
In this PR, we pair draining the view builder with its start.
To better understand what was done and why, let's first look at the
situation before this commit and the context of it:

(a) The following things happened in order:

    1. The view builder would be constructed.
    2. Right after that, a deferred lambda would be created to stop the
       view builder during shutdown.
    3. group0_service would be started.
    4. A deferred lambda stopping group0_service would be created right
       after that.
    5. The view builder would be started.

(b) Because the view builder depends on group0_client, it couldn't be
    started before starting group0_service. On the other hand, other
    services depend on the view builder, e.g. the stream manager. That
    makes changing the order of initialization a difficult problem,
    so we want to avoid doing that unless we're sure it's the right
    choice.

(c) Since the view builder uses group0_client, there was a possibility
    of running into a segmentation fault issue in the following
    scenario:

    1. A call to `view_builder::mark_view_build_success()` is issued.
    2. We stop group0_service.
    3. `view_builder::mark_view_build_success()` calls
       `announce_with_raft()`, which leads to a use-after-free because
       group0_service has already been destroyed.

      This very scenario took place in scylladb/scylladb#20772.

Initially, we decided to solve the issue by initializing
group0_service a bit earlier (scylladb/scylladb@7bad8378c7).
Unfortunately, it led to other issues described in scylladb/scylladb#21534,
so we revert that patch. These changes are the second attempt
to the problem where we want to solve it in a safer manner.

The solution we came up with is to pair the start of the view builder
with a deferred lambda that deinitializes it by calling
`view_builder::drain()`. No other component of the system should be
able to use the view builder anymore, so it's safe to do that.
Furthermore, that pairing makes the analysis of
initialization/deinitialization order much easier. We also solve the
aformentioned use-after-free issue because the view builder itself
will no longer attempt to use group0_client.

Note that we still pair a deferred lambda calling `view_builder::stop()`
with the construction of the view builder; that function will also call
`view_builder::drain()`. Another notable thing is `view_builder::drain()`
may be called earlier by `storage_service::do_drain()`. In other words,
these changes cover the situation when Scylla runs into a problem when
starting up.

Backport: The patch I'm reverting made it to 6.2, so we want to backport this one there too.

Fixes scylladb/scylladb#20772
Fixes scylladb/scylladb#21534

Closes scylladb/scylladb#21909

* github.com:scylladb/scylladb:
  test/topology_custom: Add test for Scylla with disabled view building
  main, view: Pair view builder drain with its start
  Revert "main,cql_test_env: start group0_service before view_builder"
2025-01-15 09:50:26 +01:00
Dawid Mędrek
06ce976370 main, view: Pair view builder drain with its start
In these changes, we pair draining the view builder with its start.
To better understand what was done and why, let's first look at the
situation before this commit and the context of it:

(a) The following things happened in order:

    1. The view builder would be constructed.
    2. Right after that, a deferred lambda would be created to stop the
       view builder during shutdown.
    3. group0_service would be started.
    4. A deferred lambda stopping group0_service would be created right
       after that.
    5. The view builder would be started.

(b) Because the view builder depends on group0_client, it couldn't be
    started before starting group0_service. On the other hand, other
    services depend on the view builder, e.g. the stream manager. That
    makes changing the order of initialization a difficult problem,
    so we want to avoid doing that unless we're sure it's the right
    choice.

(c) Since the view builder uses group0_client, there was a possibility
    of running into a segmentation fault issue in the following
    scenario:

    1. A call to `view_builder::mark_view_build_success()` is issued.
    2. We stop group0_service.
    3. `view_builder::mark_view_build_success()` calls
       `announce_with_raft()`, which leads to a use-after-free because
       group0_service has already been destroyed.

      This very scenario took place in scylladb/scylladb#20772.

Initially, we decided to solve the issue by initializing
group0_service a bit earlier (scylladb/scylladb@7bad8378c7).
Unfortunately, it led to other issues described in scylladb/scylladb#21534.
We reverted that change in the previous commit. These changes are the
second attempt to the problem where we want to solve it in a safer manner.

The solution we came up with is to pair the start of the view builder
with a deferred lambda that deinitializes it by calling
`view_builder::drain()`. No other component of the system should be
able to use the view builder anymore, so it's safe to do that.
Furthermore, that pairing makes the analysis of
initialization/deinitialization order much easier. We also solve the
aformentioned use-after-free issue because the view builder itself
will no longer attempt to use group0_client.

Note that we still pair a deferred lambda calling `view_builder::stop()`
with the construction of the view builder; that function will also call
`view_builder::drain()`. Another notable thing is `view_builder::drain()`
may be called earlier by `storage_service::do_drain()`. In other words,
these changes cover the situation when Scylla runs into a problem when
starting up.

Fixes scylladb/scylladb#20772
2025-01-13 00:41:22 +01:00
Dawid Mędrek
a5715086a4 Revert "main,cql_test_env: start group0_service before view_builder"
The patch solved a problem related to an initialization order
(scylladb/scylladb#20772), but we ran into another one: scylladb/scylladb#21534.
After moving the initialization of group0_service, it ended up being destroyed
AFTER the CDC generation service would. Since CDC generations are accessed
in `storage_service::topology_state_load()`:

```
for (const auto& gen_id : _topology_state_machine._topology.committed_cdc_generations) {
    rtlogger.trace("topology_state_load: process committed cdc generation {}", gen_id);
    co_await _cdc_gens.local().handle_cdc_generation(gen_id);
```

we started getting the following failure:

```
Service &seastar::sharded<cdc::generation_service>::local() [Service = cdc::generation_service]: Assertion `local_is_initialized()' failed.
```

We're reverting the patch to go back to a more stable version of Scylla
and in the following commit, we'll solve the original issue in a more
systematic way.

This reverts commit 7bad8378c7.
2025-01-12 18:13:56 +01:00
Avi Kivity
814942505f Merge 'Introduce Encryption-at-Rest (EAR) for sstables and commitlog' from Calle Wilund
Fixes https://github.com/scylladb/scylla-enterprise/issues/5016#issuecomment-2558464631

EAR - encryption at rest. Allows on-disk file encryption of sstables and commitlog data.
Introduces OpenSSL based file level encrypted storage, managed via a set of providers
ranging from local files to cloud KMS providers.

For a more comprehensive explanation, see the included docs (or if possible, original
source tree).

Manual bulk merge of EAR feature from enterprise repo to main scylla repo.

Breaks some features apart, but main EAR is still a humongous commit, because to separate this
I would have to mess with code incrementally, adding time and risk.

This PR includes the local file gen tool, tests and also p11 validation.

Note: CI will not execute the full tests unless master CI is set to provide the same environment
as the enterprise one. Not sure about the status of this ATM.

Note: Includes code to compile against cryptsoft kmipc SDK, but not the SDK. If you happen to
check out this tree in the scylla folder and configure, it will be linked against and KMIP functionality
will be enabled, otherwise not.

Closes scylladb/scylladb#22233

* github.com:scylladb/scylladb:
  docs: Add EAR docs
  main/build: Add p11-kit and initialize
  tools: Add local-file-key-generator tool
  tests: Add EAR tests
  tmpdir: shorten test tempdir path
  EAR: port the ear feature from enterprise
  cql_test_env: Add optional query timeout
  schema/migration_manager: Add schema validate
  sstables: add get_shared_components accessor
  config/config_file: Add exports and definitions of config_type_for<>
2025-01-12 16:10:46 +02:00
Benny Halevy
8d2ff8a915 utils: add disk_space_monitor
Instantiated only on shard 0.
Currently, only subscribe from unit test

Manual unit test using loop mount was added.
Note that the test requires sudo access
and root access to /dev/loop, so it cannot
run in rootless podman instance, and it'd
fail with Permission denied.

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

Closes scylladb/scylladb#21523
2025-01-12 14:51:15 +02:00
Calle Wilund
ee62b61c84 tmpdir: shorten test tempdir path
To make certain python tests work in CI
2025-01-09 10:37:35 +00:00
Calle Wilund
e734fc11ec cql_test_env: Add optional query timeout
Some tests need queries to actually fail.
2025-01-08 12:50:03 +00:00
Kefu Chai
353b522ca0 treewide: migrate from boost::adaptors::reversed to std::views::reverse
now that we are allowed to use C++23. we now have the luxury of using
`std::views::reverse`.

- replace `boost::adaptors::transformed` with `std::views::transform`
- remove unused `#include <boost/range/adaptor/reversed.hpp>`

this change is part of our ongoing effort to modernize our codebase
and reduce external dependencies where possible.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
2025-01-07 13:22:00 +02:00
Kefu Chai
e4463b11af treewide: replace boost::algorithm::join() with fmt::join()
Replace usages of `boost::algorithm::join()` with `fmt::join()` to improve
performance and reduce dependency on Boost. `fmt::join()` allows direct
formatting of ranges and tuples with custom separators without creating
intermediate strings.

When formatting comma-separated values into another string, fmt::join()
avoids the overhead of temporary string creation that
`boost::algorithm::join()` requires. This change also helps streamline
our dependencies by leveraging the existing fmt library instead of
Boost.Algorithm.

To avoid the ambiguity, some caller sites were updated to call
`seastar::format()` explicitly.

See also

- boost::algorithm::join():
  https://www.boost.org/doc/libs/1_87_0/doc/html/string_algo/reference.html#doxygen.join_8hpp
- fmt::join():
  https://fmt.dev/11.0/api/#ranges-api

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

Closes scylladb/scylladb#22082
2025-01-07 12:45:05 +02:00
Piotr Dulikowski
bbc655ff32 test/boost: update service_level_controller_test for workload prio
Adjust some of the existing tests in service_level_controller_test.cc
and add some more in order to test the workload prioritization features,
i.e. the service level shares.
2025-01-02 07:13:34 +01:00
Piotr Dulikowski
f1b9737e07 messaging_service: use separate set of connections per service levels
In order to make sure that the scheduling group carries over RPC, and
also to prevent priority inversion issues between different service
levels, modify the messaging service to use separate RPC connections for
each service level in order to serve user traffic.

The above is achieved by reusing the existing concept of "tenants" in
messaging service: when a new service level (or, more accurately,
service-level specific scheduling group) is first used in an RPC, a
new tenant is created.

In addition, extend the service level controller to be able to quickly
look up the service level name of the currently active scheduling group
in order to speed up the logic for choosing the tenant.
2025-01-02 07:13:34 +01:00
Piotr Dulikowski
7383013f43 replica/database: add reader concurrency semaphore groups
Replace the reader concurrency semaphores for user reads and view
updates with the newly introduced reader concurrency semaphore group,
which assigns a semaphore for each service level.

Each group is statically assigned to some pool of memory on startup and
dynamically distribute this memory between the semaphores, relative to
the number of shares of the corresponding scheduling group.

The intent of having a separate reader concurrency semaphore for each
scheduling group is to prevent priority inversion issues due to reads
with different priorities waiting on the same semaphore, as well as make
memory allocation more fair between service levels due to the adjusted
number of shares.
2025-01-02 07:13:34 +01:00
Piotr Dulikowski
4cfd26efaf qos: manage and assign scheduling groups to service levels
Introduce the core logic of workload prioritization, responsible for
assigning scheduling groups to service levels.

The service level controller maintains a pool of scheduling groups for
the currently present service levels, as well as a pool of unused
scheduling groups which were previously used by some service level that
was deleted during node's lifetime.

When a new service level is created, the SL controller either assigns a
scheduling group from the unused SG pool, or creates a new one if the
pool is empty. The scheduling group is renamed to "sl:<scheduling group
name>".

When updating shares of a service level (and also when creating a new
service level), the shares of the corresponding scheduling group are
synchronized with those of the service level.

When a service level is deleted, its group is released to the
aforementioned pool of unused scheduling groups and the prefix of its
name is changed from "sl:" to "sl_deleted:".

For now, these scheduling groups are not used by any user operations.
This will be changed in subsequent commits.
2025-01-02 07:13:34 +01:00
Piotr Dulikowski
ff51551a94 qos: use the shares field in service level reads/writes
Now, the newly introduced `shares` field is used when service levels are
either read from or written into system tables.
2025-01-02 07:13:34 +01:00
Avi Kivity
76cf5148e1 Merge 'message: introduce advanced rpc compression' from Michał Chojnowski
This is a forward port (from scylla-enterprise) of additional compression options (zstd, dictionaries shared across messages) for inter-node network traffic. It works as follows:

After the patch, messaging_service (Scylla's interface for all inter-node communication)
compresses its network traffic with compressors managed by
the new advanced_rpc_compression::tracker. Those compressors compress with lz4,
but can also be configured to use zstd as long as a CPU usage limit isn't crossed.

A precomputed compression dictionary can be fed to the tracker. Each connection
handled by the tracker will then start a negotiation with the other end to switch
to this dictionary, and when it succeeds, the connection will start being compressed using that dictionary.

All traffic going through the tracker is passed as a single merged "stream" through dict_sampler.
dictionary_service has access to the dict_sampler.
On chosen nodes (in the "usual" configuration: the Raft leader), it uses the sampler to maintain
a random multi-megabyte sample of the sampler's stream. Every several minutes,
it copies the sample, trains a compression dictionary on it (by calling zstd's
training library via the alien_worker thread) and publishes the new dictionary
to system.dicts via Raft's write_mutation command.

This update triggers (eventually) a callback on all nodes, which feeds the new dictionary
to advanced_rpc_compression::tracker, and this switches (eventually) all inter-node connections
to this dictionary.

Closes scylladb/scylladb#22032

* github.com:scylladb/scylladb:
  messaging_service: use advanced_rpc_compression::tracker for compression
  message/dictionary_service: introduce dictionary_service
  service: make Raft group 0 aware of system.dicts
  db/system_keyspace: add system.dicts
  utils: add advanced_rpc_compressor
  utils: add dict_trainer
  utils: introduce reservoir_sampling
  utils: introduce alien_worker
  utils: add stream_compressor
2024-12-31 15:02:57 +02:00
Michał Chojnowski
fdb2d2209c messaging_service: use advanced_rpc_compression::tracker for compression
This patch sets up an `alien_worker`, `advanced_rpc_compression::tracker`,
`dict_sampler` and `dictionary_service` in `main()`, and wires them to each other
and to `messaging_service`.

`messaging_service` compresses its network traffic with compressors managed by
the `advanced_rpc_compression::tracker`. All this traffic is passed as a single
merged "stream" through `dict_sampler`.

`dictionary_service` has access to `dict_sampler`.
On chosen nodes (by default: the Raft leader), it uses the sampler to maintain
a random multi-megabyte sample of the sampler's stream. Every several minutes,
it copies the sample, trains a compression dictionary on it (by calling zstd's
training library via the `alien_worker` thread) and publishes the new dictionary
to `system.dicts` via Raft.

This update triggers a callback into `advanced_rpc_compression::tracker` on all nodes,
which updates the dictionary used by the compressors it manages.
2024-12-27 10:17:58 +01:00
Kefu Chai
6acc5294a4 treewide: migrate from boost::copy_range to std::ranges::to
now that we are allowed to use C++23. we now have the luxury of using
`std::ranges::to`.

in this change, we:

- replace `boost::copy_range` to `std::ranges::to`
- remove unused `#include` of boost headers

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

Closes scylladb/scylladb#21880
2024-12-26 11:46:26 +02:00
Botond Dénes
d4129ddaa6 Merge 'sstables_manager: do not reclaim unlinked sstables' from Lakshmi Narayanan Sreethar
When an sstable is unlinked, it remains in the _active list of the
sstable manager. Its memory might be reclaimed and later reloaded,
causing issues since the sstable is already unlinked. This patch updates
the on_unlink method to reclaim memory from the sstable upon unlinking,
remove it from memory tracking, and thereby prevent the issues described
above.

Added a testcase to verify the fix.

Fixes #21887

This is a bug fix in the bloom filter reload/reclaim mechanism and should be backported to older versions.

Closes scylladb/scylladb#21895

* github.com:scylladb/scylladb:
  sstables_manager: reclaim memory from sstables on unlink
  sstables_manager: introduce reclaim_memory_and_stop_tracking_sstable()
  sstables: introduce disable_component_memory_reload()
  sstables_manager: log sstable name when reclaiming components
2024-12-19 15:18:16 +02:00
Avi Kivity
f3eade2f62 treewide: relicense to ScyllaDB-Source-Available-1.0
Drop the AGPL license in favor of a source-available license.
See the blog post [1] for details.

[1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
2024-12-18 17:45:13 +02:00
Lakshmi Narayanan Sreethar
4fe4367242 sstables_manager: reclaim memory from sstables on unlink
When an sstable is unlinked, it remains in the _active list of the
sstable manager. Its memory might be reclaimed and later reloaded,
causing issues since the sstable is already unlinked. This patch updates
the on_unlink method to reclaim memory from the sstable upon unlinking,
remove it from memory tracking, and thereby prevent the issues described
above.

Added a testcase to verify the fix.

Fixes #21887

Signed-off-by: Lakshmi Narayanan Sreethar <lakshmi.sreethar@scylladb.com>
2024-12-17 18:14:43 +05:30
Tomasz Grabiec
8e60a0b831 Merge 'truncate: make TRUNCATE TABLE safe with tablets' from Ferenc Szili
Currently truncating a table works by issuing an RPC to all the nodes which call `database::truncate_table_on_all_shards()`, which makes sure that older writes are dropped.

It works with tablets, but is not safe. A concurrent replication process may bring back old data.

This change makes makes TRUNCATE TABLE a topology operation, so that it excludes with other processes in the system which could interfere with it. More specifically, it makes TRUNCATE a global topology request.

Backporting is not needed.

Fixes #16411

Closes scylladb/scylladb#19789

* github.com:scylladb/scylladb:
  docs: docs: topology-over-raft: Document truncate_table request
  storage_proxy: fix indentation and remove empty catch/rethrow
  test: add tests for truncate with tablets
  storage_proxy: use new TRUNCATE for tablets
  truncate: make TRUNCATE a global topology operation
  storage_service: move logic of wait_for_topology_request_completion()
  RPC: add truncate_with_tablets RPC with frozen_topology_guard
  feature_service: added cluster feature for system.topology schema change
  system.topology_requests: change schema
  storage_proxy: propagate group0 client and TSM dependency
2024-12-10 17:50:50 +01:00
Avi Kivity
9024e4940c counters.hh: drop unused boost includes
Re-add them to source files that need them.

Closes scylladb/scylladb#21738
2024-12-05 12:27:41 +02:00
Ferenc Szili
7f29b7d8f6 storage_proxy: propagate group0 client and TSM dependency
This commit makes storage_proxy::remote dependent on raft_group0_client
and topology_state_machine. storage_proxy::remote gets references to these via
the call to start_remote(). These references will be needed to call
storage_service::truncate_table_with_tablets().
2024-12-04 11:30:06 +01:00
Botond Dénes
f55dc71c3f Merge 'Use checksummed input streams in validate_checksums()' from Nikos Dragazis
With commits ed7d352e7d and bb1867c7c7, we now have input streams for both compressed and uncompressed SSTables that provide seamless checksum and digest checking. The code for these was based on `validate_checksums()`, which implements its own validation logic over raw streams. This has led to some duplicate code.

This PR deduplicates the uncompressed case by modifying `validate_checksums()` to use a checksummed input stream instead of a raw stream. The same cannot be done for compressed SSTables though. The reason is that `validate_checksums()` needs to examine the whole data file, even if an invalid chunk is encountered. In the checksummed case we support that by offloading the error handling logic from the data source via a function parameter. In the compressed data source we cannot do that because it needs to return decompressed data and decompression may fail if the data are invalid.

This PR also enables `validate_checksums()` to partially verify SSTables with just the per-chunk checksums if the digest is missing.

In more detail, this PR consists of:
* Port of some integrity checks from `do_validate_uncompressed()` to the checksummed data source. It should now be able to detect corruption due to truncated or appended chunks (expected number of chunks is retrieved from the CRC component).
* Introduction of `error_handler` parameter in checksummed data source and `data_stream()`.
* Refactoring of `validate_checksums()`. The JSON response of `sstable validate-checksums` was also modified to report a missing digest.
*  Tests for `validate_checksums()` against SSTables with truncated data, appended data, invalid digests, or no digest.

Refs #19058.

This PR is a hybrid of cleanup and feature. No backport is needed.

Closes scylladb/scylladb#20933

* github.com:scylladb/scylladb:
  tools/scylla-sstable: Rename valid_checksums -> valid
  test: Check validate_checksums() with missing digest
  sstables: Allow validate_checksums() to report missing digests
  sstables: Refactor validate_checksums() to use checksummed data stream
  sstables: Add error_handler parameter to data_stream()
  sstables: Add error handler in checksummed data source
  sstables: Check for excessive chunks in checksummed data source
  sstables: Check for premature EOF in checksummed data source
  test: test_validate_checksums: Check SSTable with invalid digest
  test: test_validate_checksums: Check SSTable with appended data
  test: test_validate_checksums: Complement test for truncated SSTable
2024-12-04 10:46:18 +02:00
Avi Kivity
841481c202 Merge "move storage proxy and adjacent services to identify hosts by ids" from Gleb
"
This rather large patch series moves storage proxy and some adjacent
services (like migration manager) to use host ids to identify nodes rather
than ips. Messaging service gains a capability to address nodes by host
ids (which allows dropping translations from topology coordinator code
that worked on host ids already) and also makes sure that a node with
incorrect host id will reject a message (can happen during address
changes).

The series gets rid of the raft address map completely and replaces it with
the gossiper address map which is managed by the gossiper since translation
is now done in the layer below raft.

Fixes: scylladb/scylladb#6403

perf-simple-query -- smp 1 -m 1G output

Before:

enable-cache=1
Running test with config: {partitions=10000, concurrency=100, mode=read, frontend=cql, query_single_key=no, counters=no}
Disabling auto compaction
Creating 10000 partitions...
64336.82 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   41291 insns/op,   24485 cycles/op,        0 errors)
62669.58 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   41277 insns/op,   24695 cycles/op,        0 errors)
69172.12 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.2 tasks/op,   41326 insns/op,   24463 cycles/op,        0 errors)
56706.60 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   41143 insns/op,   24513 cycles/op,        0 errors)
56416.65 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   41186 insns/op,   24851 cycles/op,        0 errors)

         throughput: mean=61860.35 standard-deviation=5395.48 median=62669.58 median-absolute-deviation=5153.75 maximum=69172.12 minimum=56416.65
instructions_per_op: mean=41244.62 standard-deviation=76.90 median=41276.94 median-absolute-deviation=58.55 maximum=41326.19 minimum=41142.80
  cpu_cycles_per_op: mean=24601.35 standard-deviation=167.39 median=24512.64 median-absolute-deviation=116.65 maximum=24851.45 minimum=24462.70

After:

enable-cache=1
Running test with config: {partitions=10000, concurrency=100, mode=read, frontend=cql, query_single_key=no, counters=no}
Disabling auto compaction
Creating 10000 partitions...
65237.35 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.2 tasks/op,   40733 insns/op,   23145 cycles/op,        0 errors)
59283.09 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   40624 insns/op,   23948 cycles/op,        0 errors)
70851.03 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   40625 insns/op,   23027 cycles/op,        0 errors)
70549.61 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   40650 insns/op,   23266 cycles/op,        0 errors)
68634.96 tps ( 63.1 allocs/op,   0.0 logallocs/op,  14.1 tasks/op,   40622 insns/op,   22935 cycles/op,        0 errors)

         throughput: mean=66911.21 standard-deviation=4814.60 median=68634.96 median-absolute-deviation=3638.40 maximum=70851.03 minimum=59283.09
instructions_per_op: mean=40650.89 standard-deviation=47.55 median=40624.60 median-absolute-deviation=27.11 maximum=40733.37 minimum=40622.33
  cpu_cycles_per_op: mean=23264.16 standard-deviation=402.12 median=23145.29 median-absolute-deviation=237.63 maximum=23947.96 minimum=22934.59

CI: https://jenkins.scylladb.com/job/scylla-master/job/scylla-ci/13531/
SCT (longevity-100gb-4h with nemesis_selector: ['topology_changes']): https://jenkins.scylladb.com/view/staging/job/scylla-staging/job/gleb/job/move-to-host-id/3/

Tested mixed cluster manually.
"

* 'gleb/move-to-host-id-v2' of github.com:scylladb/scylla-dev: (55 commits)
  group0: drop unused field from replace_info struct
  test: rename raft_address_map_test to address_map_test and move if from raft tests
  raft_address_map: remove raft address map
  topology coordinator: do not modify expire state for left/new nodes any more in raft address map
  topology coordinator: drop expiring entries in gossiper address map on error injections since raft one is no longer used
  group0: drop raft address map dependency from raft_rpc
  group0: move raft_ticker_type definition from raft_address_map.hh
  storage_service: do not update raft address map on gossiper events
  group0: drop raft address map dependency from raft_server_with_timeouts
  group0: move group0 upgrade code to host ids
  repair: drop raft address map dependency
  group0: remove unused raft address map getter from raft_group0
  group0: drop raft address map from group0_state_machine dependency since it is not used there any more
  group0: remove dependency on raft address map from group0_state_id_handler
  gossiper: add get_application_state_ptr that searches by host_id
  gossiper: change get_live_token_owners to return host ids
  view: move view building to host id
  hints: use host id to send hints
  storage_proxy: remove id_vector_to_addr since it is no longer used
  db: consistency_level: change is_sufficient_live_nodes to work on host ids
  ...
2024-12-03 18:18:48 +02:00
Kefu Chai
bab12e3a98 treewide: migrate from boost::adaptors::transformed to std::views::transform
now that we are allowed to use C++23. we now have the luxury of using
`std::views::transform`.

in this change, we:

- replace `boost::adaptors::transformed` with `std::views::transform`
- use `fmt::join()` when appropriate where `boost::algorithm::join()`
  is not applicable to a range view returned by `std::view::transform`.
- use `std::ranges::fold_left()` to accumulate the range returned by
  `std::view::transform`
- use `std::ranges::fold_left()` to get the maximum element in the
  range returned by `std::view::transform`
- use `std::ranges::min()` to get the minimal element in the range
  returned by `std::view::transform`
- use `std::ranges::equal()` to compare the range views returned
  by `std::view::transform`
- remove unused `#include <boost/range/adaptor/transformed.hpp>`
- use `std::ranges::subrange()` instead of `boost::make_iterator_range()`,
  to feed `std::views::transform()` a view range.

to reduce the dependency to boost for better maintainability, and
leverage standard library features for better long-term support.

this change is part of our ongoing effort to modernize our codebase
and reduce external dependencies where possible.

limitations:

there are still a couple places where we are still using
`boost::adaptors::transformed` due to the lack of a C++23 alternative
for `boost::join()` and `boost::adaptors::uniqued`.

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

Closes scylladb/scylladb#21700
2024-12-03 09:41:32 +02:00
Gleb Natapov
96309224ff raft_address_map: remove raft address map
It is no longer used.
2024-12-02 10:31:14 +02:00
Gleb Natapov
c65f64cc5f storage_service: do not update raft address map on gossiper events
Raft address map is not use any longer to resolve addresses anyway, so
drop dependency on it from raft_ip_address_updater and rename it to
reflect that it is no longer raft address map specific.
2024-12-02 10:31:13 +02:00
Gleb Natapov
1c5a7826dc storage_service: pass gossip_address_map
It will be used in the following patches.
2024-12-02 10:31:11 +02:00
Gleb Natapov
79358278f2 service: raft: move raft pinger to sending messages by host id
This allows us to drop dependency on raft_address_map from direct_fd_pinger.
2024-12-02 10:31:11 +02:00
Gleb Natapov
76aa41dfcf messaging_service: pass gossip_address_map to the mm and introduce send by id functions
The function looks up provided host id in gossip_address_map and throws
unknown_address if the mapping is not available. Otherwise it sends the
message by IP found.
2024-12-01 12:12:30 +02:00