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The config variable `components_memory_reclaim_threshold` limits the memory available to the sstable bloom filters. Any change to its value is not immediately propagated to the sstable manager, despite it being a LiveUpdate variable. The updated value takes effect only when a new sstable is created or deleted. This PR first refactors the reclaim and reload logic into a single background fiber. It then updates the sstable manager to subscribe to changes in the `components_memory_reclaim_threshold` configuration value and immediately triggers the reclaim/reload fiber when a change is detected. Fixes #21947 This is an improvement and does not need to be backported. Closes scylladb/scylladb#22725 * github.com:scylladb/scylladb: sstables_manager: trigger reclaim/reload on `components_memory_reclaim_threshold` update sstables_manager: maybe_reclaim_components: yield between iterations sstables_manager: rename `increment_total_reclaimable_memory_and_maybe_reclaim()` sstables_manager: move reclaim logic into `components_reclaim_reload_fiber()` sstables_manager: rename `_sstable_deleted_event` condition variable sstables_manager: rename `components_reloader_fiber()` sstables_manager: fix `maybe_reclaim_components()` indentation sstables_manager: reclaim components memory until usage falls below threshold sstables_manager: introduce `get_components_memory_reclaim_threshold()` sstables_manager: extract `maybe_reclaim_components()` sstables_manager: fix `maybe_reload_components()` indentation sstables_manager: extract out `maybe_reload_components()`
Scylla in-source tests.
For details on how to run the tests, see docs/dev/testing.md
Shared C++ utils, libraries are in lib/, for Python - pylib/
alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cqlpy - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool
If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).
To add a new folder, create a new directory, and then
copy & edit its suite.ini.