This PR ensures that CDC keeps working correctly in the recovery mode after leaving the raft-based topology. We update `system.cdc_local` in `topology_state_load` to ensure a node restarting in the recovery mode sees the last CDC generation created by the topology coordinator. Additionally, we extend the topology recovery test to verify that the CDC keeps working correctly during the whole recovery process. In particular, we test that after restarting nodes in the recovery mode, they correctly use the active CDC generation created by the topology coordinator. Fixes scylladb/scylladb#17409 Fixes scylladb/scylladb#17819 (cherry picked from commit4351eee1f6) (cherry picked from commit68b6e8e13e) (cherry picked from commit388db33dec) (cherry picked from commit2111cb01df) Refs #18820 Closes scylladb/scylladb#18938 * github.com:scylladb/scylladb: test: test_topology_recovery_basic: test CDC during recovery test: util: start_writes_to_cdc_table: add FIXME to increase CL test: util: start_writes_to_cdc_table: allow restarting with new cql storage_service: update system.cdc_local in topology_state_load
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++ cql-pytest - 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.