David Capwell created CASSANDRA-21130:
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Summary: Fix flakey tests due to tests updating SSTable format
dynamically
Key: CASSANDRA-21130
URL: https://issues.apache.org/jira/browse/CASSANDRA-21130
Project: Apache Cassandra
Issue Type: Bug
Components: CI
Reporter: David Capwell
Assignee: David Capwell
There are several tests that set the SSTable format for the test, but this is a
global field and a background compaction can read the format and make different
decisions; leading to flakey failures.
The motivating issue is that the new compaction cursor logic checks that the
format is BIG and then enables, else it falls back to previous logic. When the
test changes to BTI this can cause a race with compaction leading to type cast
issues.
Switching the format at runtime is currently not supported and something done
specifically by tests, so need to make sure tests do it in a safe way to make
CI stable.
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