921d07a26b
In some uses of SELECT, such as aggregation (sum() et al.), GROUP BY or secondary index, it needs to perform internal scans. It uses an "internal page size" which before this patch was always DEFAULT_COUNT_PAGE_SIZE = 10000. There was an ad-hoc and undocumented way to override this default in C++ tests, using functions in test/lib/select_statement_utils.hh, but it was so non-obvious that the test that most needed to override this default - the very slow test test_indexing_paging_and_aggregation which would have been must faster with a lower setting - never used it. So in this patch we replace the ad-hoc configuration functions by a bona-fide Scylla configuration option named "select_internal_page_size". The few C++ tests that used the old configuration functions were modified to use the new configuration parameters. The slow test test_indexing_paging_and_aggregation still doesn't use the new configuration to become faster - we'll do this in the next patch. Another benefit of having this "internal page size" as a configuration option is that one day a user might realize that the default choice 10,000 is bad for some reason (which I can't envision right now), so having it configurable might come it handy. Signed-off-by: Nadav Har'El <nyh@scylladb.com>
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.