There used to be a problem with restarting a node after decommissioning some other node - the restarting node tries to apply the raft log, this log contains a record about the decommissioned node, and we got stuck trying to resolve its IP. This was fixed in #16639 - we excluded IPs from the RAFt log application code and moved it entirely to host_id-s. In this commit we add a regression test for this case. We move the decommission_node call before server_stop/server_start. We need to add one more server to retain majority when the node is decommissioned, otherwise the topology coordinator won't migrate from the stopped node before replacing it, and we'll get an error. closes #14803
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.