5dac4b38fb
This change introduces a targeted test that simulates the gossiper race condition observed during node decommissioning. The test delays gossip state application and host ID lookup to reliably reproduce the scenario where `gossiper::get_host_id()` is called on a removed endpoint, potentially triggering an abort in `apply_new_states`. There is a specific error injection added to widen the race window, in order to increase the likelihood of hitting the race condition. The error injection is designed to delay the application of gossip state updates, for the specific node that is being decommissioned. This should then result in the server abort in the gossiper. Refs: scylladb/scylladb#25621 Fixes: scylladb/scylladb#25721 Backport: The test is primarily for an issue found in 2025.1, so it needs to be backported to all the 2025.x branches. Closes scylladb/scylladb#25685
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.