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https://issues.apache.org/jira/browse/CASSANDRA-21624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18108861#comment-18108861
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Brandon Williams commented on CASSANDRA-21624:
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PR for 5.0, clean merges forward.
> Reduce CI console output volume
> -------------------------------
>
> Key: CASSANDRA-21624
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21624
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: CI
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Normal
> Fix For: 5.0.x, 6.0.x, 7.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Analysis of a (Jenkins console
> log)[https://ci-cassandra.apache.org/job/Cassandra-5.0/654/] shows ~43MB
> (41%) is two classes of pure-noise output that stream through the controller
> and are buffered in the controller heap per the in-flight sh step:
> * Python dtest runs stream the cassandra-driver's reconnect loop at DEBUG
> level. A single flapping dtest-novnode cell produced 14,875 full Python
> tracebacks (~22MB) plus ~80k cassandra.cluster log lines (~11MB), peak
> 4.2MB/min.
>
>
>
> * Every forked test JVM logs the complete ant command line including the
> full ~17KB classpath ("Forking using command: [...]") = 1,296 lines = 21.4MB,
> identical content every time.
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