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From "matt knecht (JIRA)" <>
Subject [jira] [Commented] (SOLR-4696) All threads become blocked resulting in hang when bulk adding
Date Wed, 10 Apr 2013 14:14:16 GMT


matt knecht commented on SOLR-4696:

When the threads go into busy/wait, a bounce of tomcat will clear the issue and we'll progress.
 After that happens I don't let it finish and reset the everything and try again (Different
java, different tomcat, different commit patterns, etc... anything that I can think of that
will help to clear it)

> All threads become blocked resulting in hang when bulk adding
> -------------------------------------------------------------
>                 Key: SOLR-4696
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 4.1, 4.2, 4.2.1
>         Environment: Ubuntu 12.04.2 LTS 3.5.0-27-generic
> Java HotSpot(TM) 64-Bit Server VM (build 23.7-b01, mixed mode)
> KVM, 4xCPU, 5GB RAM, 4GB heap.
> 4 cores, 2 shards, 2 nodes, tomcat7
>            Reporter: matt knecht
>              Labels: hang
>         Attachments: screenshot-1.jpg, solrconfig.xml, solr.jstack.1, solr.jstack.2
> During a bulk load after about 150,000 documents load, thread usage spikes, solr no longer
processes any documents.  Any additional documents added result in a new thread until the
pool is exhausted.

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