Files
scylladb/test
Nadav Har'El d01915131a test/cqlpy: make test_indexing_paging_and_aggregation much faster
Currently, test_secondary_index.py::test_indexing_paging_and_aggregation
is very slow, and the slowest test in the test/cqlpy framework: It takes
around 13 seconds on dev build, and because it is CPU-bound (doesn't sleep),
it is much slower on debug builds. The reason for this slowness is that it
needs to set up and read over 10,000 rows which is the default
select_internal_page_size.

But after the patches in pull request (#25368), we can configure
select_internal_page_size, so in this patch we change the test to
temporarily reduce this option to just 50, and then the test can reach
the same code paths with just 142 rows instead of 20120 rows before this
patch.

As a result, the test should now be 140 times faster than it was before.
In practice, because of some fixed overheads (the test creates several
tables and indexes), in dev build mode the test run speedup is "only"
26-fold (to around half a second).

I verified that removing the code added in bb08af7 indeed makes the new
shorter test fail - and this is the only test in test_secondary_index.py
that starts to fail besides test_index_paging_group_by which is also
related (so my revert didn't just break secondary indexing completely).
So the shorter test is still a good regression test.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>

Closes scylladb/scylladb#28268
2026-02-20 15:44:53 +02:00
..

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.