Stefan Podkowinski created CASSANDRA-14558:
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Summary: dtest: log-watching thread leak and thread starvation
Key: CASSANDRA-14558
URL: https://issues.apache.org/jira/browse/CASSANDRA-14558
Project: Cassandra
Issue Type: Bug
Components: Testing
Reporter: Stefan Podkowinski
Assignee: Stefan Podkowinski
We get occasional build timeouts on b.a.o after pytest becomes unresponsive for
over 20 minutes. This will result in a thread dump like this one:
[https://builds.apache.org/view/A-D/view/Cassandra/job/Cassandra-2.2-dtest/117/consoleFull]
If you look for "Log-watching thread starting" messages and the dump, it
becomes quite obvious whats the issue here.
I had a quick look at the python3 / pytest related changes in CASSANDRA-14134
and it seems that some of the handling around dtest_setup's
{{log_watch_thread}} var has been changed in a way that would prevent
eventually yielding the allocated thread.
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