9fc70a28ca
This test in topology_experimental_raft/test_alternator.py wants to check that during Alternator TTL's expiration scans, ALL of the CPU was used in the "streaming" scheduling group and not in the "statement" scheduling group. But to allow for some fluke requests (e.g., from the driver), the test actually allows work in the statement group to be up to 1% of the work. Unfortunately, in one test run - a very slow debug+aarch64 run - we saw the work on the statement group reach 1.4%, failing the test. I don't know exactly where this work comes from, perhaps the driver, but before this bug was fixed we saw more than 58% of the work in the wrong scheduling group, so neither 1% or 1.4% is a sign that the bug came back. In fact, let's just change the threshold in the test to 10%, which is also much lower than the pre-fix value of 58%, so is still a valid regression test. Fixes #19307 Signed-off-by: Nadav Har'El <nyh@scylladb.com> Closes scylladb/scylladb#19323
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.