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From "Yonik Seeley (JIRA)" <>
Subject [jira] Commented: (SOLR-1911) File descriptor leak while indexing, may cause index corruption
Date Sat, 15 May 2010 16:51:42 GMT


Yonik Seeley commented on SOLR-1911:

Hmmm, not sure I see any smoking guns in that lsof output.

Are you using stock solrconfig.xml from the example?
If not, can you try the latest trunk, and just with the example server only?  This will help
narrow down if it's a problem with some other component such as what hoss pointed out: SOLR-1877

> File descriptor leak while indexing, may cause index corruption
> ---------------------------------------------------------------
>                 Key: SOLR-1911
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: update
>    Affects Versions: 1.5
>         Environment:         Ubuntu Linux, Java build 1.6.0_16-b01
>         Solr Specification Version:
> 	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: 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` | 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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