Jacek Lewandowski created CASSANDRA-16575:
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Summary: "compression" configuration in unit tests is incorrect
and actually redundant
Key: CASSANDRA-16575
URL: https://issues.apache.org/jira/browse/CASSANDRA-16575
Project: Cassandra
Issue Type: Bug
Components: Test/unit
Reporter: Jacek Lewandowski
When running unit tests with "compression" configuration, we actually not use
compression at all we run just unit tests without compression (which is
redundant when running on CI).
The reason is that for the compression configuration we (try to) do the
following:
{code:xml}
<property name="compressed_yaml"
value="${build.test.dir}/cassandra.compressed.yaml"/>
<concat destfile="${compressed_yaml}">
<fileset file="${test.conf}/cassandra.yaml"/>
<fileset file="${test.conf}/commitlog_compression.yaml"/>
</concat>
{code:xml}
however, {{cassandra.compressed.yaml}} has been replaced in CASSANDRA-14482 by
two files {{commitlog_compression_LZ4.yaml}} and
{{commitlog_compression_Zstd.yaml}} without changing build configuration.
All in all we could fix that but I doubt it makes any sense since {{cdc}}
configuration already uses compressed commit log anyway so it feels redundant
to test compression alone for each CI run.
I vote for removing compression configuration and actually allow to manually
specify yaml file to be used for testing as a test property, as well as allow
to manually specify extra system properties to be passed to the test. That
would make the build more flexible and remove a bit of redundant code.
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