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From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-12055) Enable async logging by default
Date Wed, 12 Sep 2018 15:24:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16612321#comment-16612321
] 

Erick Erickson commented on SOLR-12055:
---------------------------------------

Forgot to attach the rollback patch last week, it's there now. People can probably ignore
it.

I'll be starting this up again today locally, although anyone with knowledge here please chime
in.

> Enable async logging by default
> -------------------------------
>
>                 Key: SOLR-12055
>                 URL: https://issues.apache.org/jira/browse/SOLR-12055
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: logging
>            Reporter: Erick Erickson
>            Assignee: Erick Erickson
>            Priority: Minor
>         Attachments: SOLR-12055-rollback.patch, SOLR-12055-slh-interim1.patch, SOLR-12055-slh-interim1.patch,
SOLR-12055.patch, SOLR-12055.patch
>
>
> When SOLR-7887 is done, switching to async logging will be a simple change to the config
files for log4j2. This will reduce contention and increase throughput generally and logging
in particular.
> There's a discussion of the pros/cons here: https://logging.apache.org/log4j/2.0/manual/async.html
> An alternative is to put a note in the Ref Guide about how to enable async logging.
> I guess even if we enable async by default the ref guide still needs a note about how
to _disable_ it.....



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