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https://issues.apache.org/jira/browse/SOLR-5277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782485#comment-13782485
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Robert Muir commented on SOLR-5277:
-----------------------------------
I think for the query case you get a jetty thread name.. i mean im not really
sure who names it, but i just suspect that (e.g. qtp1640764503-13617). But the
update cases seem like something is created by solr (e.g.
commitScheduler-7-thread-1).
If either or both of these when created, could include the name of the core,
then the logging classes wouldn't have to concern themselves with adding the
core's name and it would just be in one place.
> Stamp core names on log entries for certain classes
> ---------------------------------------------------
>
> Key: SOLR-5277
> URL: https://issues.apache.org/jira/browse/SOLR-5277
> Project: Solr
> Issue Type: Bug
> Components: search, update
> Affects Versions: 4.3.1, 4.4, 4.5
> Reporter: Dmitry Kan
> Attachments: SOLR-5277.patch
>
>
> It is handy that certain Java classes stamp a [coreName] on a log entry. It
> would be useful for multicore setup if more classes would stamp this
> information.
> In particular we came accross a situaion with commits coming in a quick
> succession to the same multicore shard and found it to be hard time figuring
> out was it the same core or different cores.
> The classes in question with log sample output:
> o.a.s.c.SolrCore
> 06:57:53.577 [qtp1640764503-13617] INFO org.apache.solr.core.SolrCore -
> SolrDeletionPolicy.onCommit: commits:num=2
> 11:53:19.056 [coreLoadExecutor-3-thread-1] INFO
> org.apache.solr.core.SolrCore - Soft AutoCommit: if uncommited for 1000ms;
> o.a.s.u.UpdateHandler
> 14:45:24.447 [commitScheduler-9-thread-1] INFO
> org.apache.solr.update.UpdateHandler - start
> commit{,optimize=false,openSearcher=true,waitSearcher=true,expungeDeletes=false,softCommit=true,prepareCommit=false}
> 06:57:53.591 [qtp1640764503-13617] INFO org.apache.solr.update.UpdateHandler
> - end_commit_flush
> o.a.s.s.SolrIndexSearcher
> 14:45:24.553 [commitScheduler-7-thread-1] INFO
> org.apache.solr.search.SolrIndexSearcher - Opening Searcher@1067e5a9 main
> The original question was posted on #solr and on SO:
> http://stackoverflow.com/questions/19026577/how-to-output-solr-core-name-with-log4j
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