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https://issues.apache.org/jira/browse/SOLR-15477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kevin Risden updated SOLR-15477:
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Status: Patch Available (was: Open)
> Logging Performance
> -------------------
>
> Key: SOLR-15477
> URL: https://issues.apache.org/jira/browse/SOLR-15477
> Project: Solr
> Issue Type: Sub-task
> Reporter: Mark Robert Miller
> Priority: Major
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Once you remove almost all performance issues and unnecessary garbage
> generation, logging starts to sit at the top of method and gc perf profiling
> (well, xml config still competes on gc - you can improve that 90% and it's
> still fights to be king of the hill) during test runs. This is the case even
> with fairly reduced logging and configuration optimizations.
> At that point, exception logging is the big killer (no garbage free option),
> so in a mostly clean running system this will likely be less the case.
> There are a variety of configuration options that can boost the logging
> impact. Fairly critical to it all is telling log4j2 that no, Solr is not a
> webapp, please dont punish.
>
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