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In topology on raft, management of CDC generations is moved to the topology coordinator. 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. A node restarting in the recovery mode should learn about the active generation from `system.cdc_local` (or from gossip, but we don't want to rely on it). Then, it should load its data from `system.cdc_generations_v3`. Fixes scylladb/scylladb#17409
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.