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https://issues.apache.org/jira/browse/SOLR-683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621612#action_12621612
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Yonik Seeley commented on SOLR-683:
-----------------------------------
I duplicated a deadlock with two shards with 1000 client threads making
requests.
When I changed the maxThreads parameter from 250 to 10000 (in jetty.xml), the
deadlocks went away... I was able to run through 1M requests.
> Distributed Search / Shards Deadlock
> ------------------------------------
>
> Key: SOLR-683
> URL: https://issues.apache.org/jira/browse/SOLR-683
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 1.3
> Environment: Linux
> jre1.6.0_05
> 8GB RAM
> 2 x 2 core AMD 2.4 Ghz
> 2 x 140GB disk
> Reporter: Cameron
> Assignee: Yonik Seeley
> Fix For: 1.3
>
> Attachments: locked.log
>
>
> Per this discussion:
> http://www.nabble.com/Distributed-Search-Strategy---Shards-td18882112.html
> Solr seems to lock up when running distributed search on three servers, with
> all three using shards of each other. Thread dump attached.
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