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https://issues.apache.org/jira/browse/SOLR-7381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671925#comment-16671925
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Ted Yu commented on SOLR-7381:
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I was looking at MDCAwareFixedThreadPool and found this JIRA.
I wonder if what was stated here is relevant:
http://ashtonkemerling.com/blog/2017/09/01/mdc-and-threadpools/
Thanks
> Improve Debuggability of SolrCloud using MDC
> --------------------------------------------
>
> Key: SOLR-7381
> URL: https://issues.apache.org/jira/browse/SOLR-7381
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Priority: Critical
> Fix For: 5.2, 6.0
>
> Attachments: SOLR-7381-forbid-threadpoolexecutor.patch,
> SOLR-7381-submitter-stacktrace.patch, SOLR-7381-thread-names.patch,
> SOLR-7381-thread-names.patch, SOLR-7381-thread-names.patch, SOLR-7381.patch,
> SOLR-7381.patch
>
>
> SOLR-6673 added MDC based logging in a few places but we have a lot of ground
> to cover.
> # Threads created via thread pool executors do not inherit MDC values and
> those are some of the most interesting places to log MDC context.
> # We must expose node names (in tests) so that we can debug faster
> # We can expose more information via thread names so that a thread dump has
> enough context to help debug problems in production
> This is critical to help debug SolrCloud failures.
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