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https://issues.apache.org/jira/browse/CASSANDRA-14326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-14326:
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Component/s: Observability
> Handle verbose logging at a different level than DEBUG
> ------------------------------------------------------
>
> Key: CASSANDRA-14326
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14326
> Project: Cassandra
> Issue Type: Improvement
> Components: Observability
> Reporter: Alexander Dejanovski
> Priority: Major
> Fix For: 4.x
>
>
> CASSANDRA-10241 introduced debug logging turned on by default to act as a
> verbose system.log and help troubleshoot production issues.
> One of the consequence was to severely affect read performance in 2.2 as
> contributors weren't all up to speed on how to use logging levels
> (CASSANDRA-14318).
> As DEBUG level has a very specific meaning in dev, it is confusing to use it
> for always on verbose logging and should probably not be used this way in
> Cassandra.
> Options so far are :
> # Bring back common loggings to INFO level (compactions, flushes, etc...)
> and disable debug logging by default
> # Use files named as verbose-system.log instead of debug.log and use a
> custom logging level instead of DEBUG for verbose tracing, that would be
> enabled by default. Debug logging would still exist and be disabled by
> default in the root logger (not just filtered at the appender level).
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