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https://issues.apache.org/jira/browse/SOLR-13712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16914380#comment-16914380
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Jeremy Branham commented on SOLR-13712:
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Thanks for tracking this down -
It sounds like a workaround may be to configure log4j2 to register it's mbeans
earlier.
I'm not sure if this can be done through configuration, but I'll do some tests
and post my results.
> JMX MBeans are not exposed because of race condition between creating
> platform mbean server and registering mbeans
> ------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-13712
> URL: https://issues.apache.org/jira/browse/SOLR-13712
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: JMX
> Affects Versions: 6.6, 6.6.2, 6.6.5, 7.7.2, 8.2, 8.1.1
> Reporter: Shalin Shekhar Mangar
> Priority: Major
>
> This is quite easy to reproduce.
> {code}
> wget https://archive.apache.org/dist/lucene/solr/6.6.0/solr-6.6.0.tgz
> tar xvf solr-6.6.0.tgz
> cd solr-6.6.0
> {code}
> Enable jmx reporting by editing the server/solr/solr.xml and adding the
> following under the "<solr>" tag:
> {code}
> <metrics>
> <reporter id="jmx"
> class="org.apache.solr.metrics.reporters.SolrJmxReporter" />
> </metrics>
> {code}
> Start solr with:
> {code}
> ./bin/solr start -e cloud -noprompt
> {code}
> Open jconsole and inspect mbeans for solr nodes running on port 8983 and
> 7574. You'll find that all mbeans (node, jvm, jetty, solr) are present for
> the solr on port 8983 but completely absent for the solr node running on port
> 7574.
> Same behavior is on 6.6.2 and 6.6.6. However, Solr 7.x and 8.x seem to be
> fine.
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