4c8dba15f1
This patch fixes 2 issues within strong consistency state machine: - it might happen that apply is called before the schema is delivered to the node - on the other hand, the apply may be called after the schema was changed and purged from the schema registry The first problem is fixed by doing `group0.read_barrier()` before applying the mutations. The second one is solved by upgrading the mutations using column mappings in case the version of the mutations' schema is older. Fixes SCYLLADB-428 Strong consistency is in experimental phase, no need to backport. Closes scylladb/scylladb#28546 * https://github.com/scylladb/scylladb: test/cluster/test_strong_consistency: add reproducer for old schema during apply test/cluster/test_strong_consistency: add reproducer for missing schema during apply test/cluster/test_strong_consistency: extract common function raft_group_registry: allow to drop append entries requests for specific raft group strong_consistency/state_machine: find and hold schemas of applying mutations strong_consistency/state_machine: pull necessary dependencies db/schema_tables: add `get_column_mapping_if_exists()`
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.