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https://issues.apache.org/jira/browse/CASSANDRA-14326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439032#comment-16439032
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Kurt Greaves commented on CASSANDRA-14326:
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As a user/operator I can't see the need to split out a subset of logs to a
verbose-system.log.
If it helps the operator it should just be in the system.log. If those logs are
making system.log too noisy then thought needs to go into better log messages.
A bit of code refactoring for clearer/less noisy log messages is preferable to
just shipping them off to another file.
More log files is just a nightmare for operators in my experience, and most
will just end up pumping them all into journald/[insert log service here]
defeating the purpose anyway.
The proposals so far mostly just sound to me like keeping the debug logging but
with a different name. Debug logs are for developers, not operators.
> 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
> 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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