The API already promises this, the comment on effective_replication_map says: "Excludes replicas which are in the left state". Tablet replicas on the replaced node are rebuilt after the node already left. We may no longer have the IP mapping for the left node so we should not include that node in the replica set. Otherwise, storage_proxy may try to use the empty IP and fail: storage_proxy - No mapping for :: in the passed effective replication map It's fine to not include it, because storage proxy uses keyspace RF and not replica list size to determine quorum. The node is not coming up, so noone should need to contact it. Users which need replica list stability should use the host_id-based API. Fixes #18843
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.