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https://issues.apache.org/jira/browse/SOLR-4400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Miller resolved SOLR-4400.
-------------------------------
Resolution: Fixed
Thanks Erick! If you see this same deadlock again, please reopen. If you see a
different deadlock case, let's open a new issue for it.
> Rapidly opening and closing cores can lead to deadlock
> ------------------------------------------------------
>
> Key: SOLR-4400
> URL: https://issues.apache.org/jira/browse/SOLR-4400
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.1
> Reporter: Erick Erickson
> Assignee: Mark Miller
> Fix For: 4.2, 5.0
>
> Attachments: 4x_stack.txt, SOLR-4400.patch
>
>
> See the discussion at SOLR-4196. Under ridiculous loads (i.e. every request
> causes a core to close and another one to open) Solr can lock up. This is
> _only_ a problem if you are using transient cores (see SOLR-1028) with a
> limited cache size. Simply lazily loading cores that are NOT transient
> shouldn't have this problem, you need to be closing cores to get here.
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