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https://issues.apache.org/jira/browse/SOLR-11297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16179443#comment-16179443
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Shawn Heisey commented on SOLR-11297:
-------------------------------------
With the latest patch applied to branch_6_6 and installing from
solr-6.6.2-SNAPSHOT.tgz, everything works as expected. There are no errors in
the admin UI, and the "Lock held by this virtual machine" message is not in the
log. The only errors I see in the log are those generated by accessing cores
while they are loading.
{code}
<title>Error 503
{metadata={error-class=org.apache.solr.common.SolrException,root-error-class=org.apache.solr.common.SolrException},msg=SolrCore
is loading,code=503}</title>
{code}
> Message "Lock held by this virtual machine" during startup. Solr is trying
> to start some cores twice
> -----------------------------------------------------------------------------------------------------
>
> Key: SOLR-11297
> URL: https://issues.apache.org/jira/browse/SOLR-11297
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 6.6
> Reporter: Shawn Heisey
> Assignee: Erick Erickson
> Attachments: SOLR-11297.patch, SOLR-11297.patch, SOLR-11297.sh,
> solr6_6-startup.log
>
>
> Sometimes when Solr is restarted, I get some "lock held by this virtual
> machine" messages in the log, and the admin UI has messages about a failure
> to open a new searcher. It doesn't happen on all cores, and the list of
> cores that have the problem changes on subsequent restarts. The cores that
> exhibit the problems are working just fine -- the first core load is
> successful, the failure to open a new searcher is on a second core load
> attempt, which fails.
> None of the cores in the system are sharing an instanceDir or dataDir. This
> has been verified several times.
> The index is sharded manually, and the servers are not running in cloud mode.
> One critical detail to this issue: The cores are all perfectly functional.
> If somebody is seeing an error message that results in a core not working at
> all, then it is likely a different issue.
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