Soon, we will make consistent cluster management mandatory on master. Before this, we have to change all tests in the topology_raft_disabled suite so that they do not depend on the consistent_cluster_management=false config. Adapting test_raft_upgrade_majority_loss is simple. We only have to get rid of the initial upgrade. This initial upgrade didn't test anything. Every test in topology_raft_disabled had to do it at the beginning because of consistent_cluster_management=false. Adapting test_raft_upgrade_basic and test_raft_upgrade_stuck is more difficult. It requires changing the initial upgrade to clearing Raft data in RECOVERY mode on all servers and restarting them. Then, the servers will run the same upgrade procedure as before. After changing the tests, we also update their names appropriately. test_raft_upgrade_stuck becomes a bit slower, so we remove the comment about running time. Also, one TODO was fixed in the process of rewriting the test. This fix forced us to skip the test in the release mode since we cannot update the list of error injections through manager.server_update_config in this mode.
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.