Currently, we can not have more than one global topology operation at the same time. This means that we can not have concurrent truncate operations because truncate is implemented as a global topology operation. Truncate excludes with other topology operations, and has to wait for those to complete before truncate starts executing. This can lead to truncate timeouts. In these cases the client retries the truncate operation, which will check for ongoing global topology operations, and will fail with an "Another global topology request is ongoing, please retry." error. This can be avoided by truncate checking if the ongoing global topology operation is a truncate running for the same table who's truncate has just been requested again. In this case, we can wait for the ongoing truncate to complete instead of immediately failing the operation, and provide a better user experience. This is an improvement, backport is not needed. Closes #22166 Closes scylladb/scylladb#22371 * github.com:scylladb/scylladb: test: add test for re-cycling ongoing truncate operations truncate: add additional logging and improve error message during truncate storage_proxy: wait on already running truncate for the same table storage_proxy: allow multiple truncate table fibers per shard
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.