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https://issues.apache.org/jira/browse/SOLR-1911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868309#action_12868309
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Yonik Seeley commented on SOLR-1911:
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{quote}
Here's a clue -?? I looked for file descriptors associated with one .prx file
that was present in the original snapshot in each lsof output
grep -c _r8.prx lsof.*
lsof.0:1
lsof.1:2
lsof.2:3
lsof.3:4
lsof.4:5
lsof.5:6
{quote}
OK... this definitely sounds like a leak then. And the fact that you're using
the stock solrconfig.xml should rule out spellchecker, replication, etc.
> File descriptor leak while indexing, may cause index corruption
> ---------------------------------------------------------------
>
> Key: SOLR-1911
> URL: https://issues.apache.org/jira/browse/SOLR-1911
> Project: Solr
> Issue Type: Bug
> Components: update
> Affects Versions: 1.5
> Environment: Ubuntu Linux, Java build 1.6.0_16-b01
> Solr Specification Version: 3.0.0.2010.05.12.16.17.46
> Solr Implementation Version: 4.0-dev exported - simon - 2010-05-12
> 16:17:46 -- bult from updated trunk
> Lucene Specification Version: 4.0-dev
> Lucene Implementation Version: 4.0-dev exported - 2010-05-12 16:18:26
> Current Time: Thu May 13 12:21:12 EDT 2010
> Server Start Time:Thu May 13 11:45:41 EDT 2010
> Reporter: Simon Rosenthal
> Priority: Critical
> Attachments: indexlsof.tar.gz, openafteropt.txt
>
>
> While adding documents to an already existing index using this build, the
> number of open file descriptors increases dramatically until the open file
> per-process limit is reached (1024) , at which point there are error messages
> in the log to that effect. If the server is restarted the index may be corrupt
> commits are handled by autocommit every 60 seconds or 500 documents (usually
> the time limit is reached first).
> mergeFactor is 10.
> It looks as though each time a commit takes place, the number of open files
> (obtained from " lsof -p `cat solr.pid` | egrep ' [0-9]+r ' ") increases by
> 40, There are several open file descriptors associated with each file in the
> index.
> Rerunning the same index updates with an older Solr (built from trunk in Feb
> 2010) doesn't show this problem - the number of open files fluctuates up and
> down as segments are created and merged, but stays basically constant.
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