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In this patch we add various tests for checking how strongly consistent tables work while allowing their tablets to reside on non-0 shards and while using the new persistent storage for their raft metadata. The tests verify that: - strongly consistent tables' tablets can be allocated on different shards and we can write/read from them - the raft metadata is persistent across restarts even with disruptions - the sharder correctly routes metadata queries to specified shards - we can correctly perform multi-shard reads from the metadata tables - we can read using just the group_id (without shard) using ALLOW FILTERING For the tests we add logging to the sharder and partitioner and we add some extra logs for observability.
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.