Files
scylladb/test
Patryk Jędrzejczak a2c23793ab raft_group0: join_group0: fix join hang when node joins group 0 before post_server_start
A joining node hung forever if the topology coordinator added it to the
group 0 configuration before the node reached `post_server_start`. In
that case, `server->get_configuration().contains(my_id)` returned true
and the node broke out of the join loop early, skipping
`post_server_start`. `_join_node_group0_started` was therefore never set,
so the node's `join_node_response` RPC handler blocked indefinitely.
Meanwhile the topology coordinator's `respond_to_joining_node` call
(which has no timeout) hung forever waiting for the reply that never came.

Fix by only taking the early-break path when not starting as a follower
(i.e. when the node is the discovery leader or is restarting). A joining
node must always reach `post_server_start`.

We also provide a regression test. It takes 6s in dev mode.

Fixes SCYLLADB-959

Closes scylladb/scylladb#29266

(cherry picked from commit b9f82f6f23)

Closes scylladb/scylladb#29291

Closes scylladb/scylladb#29308
2026-04-09 15:53:43 +02:00
..

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.