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From "Ian Maloney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-4268) Possible resource leak leading to SocketException: Too many open files
Date Tue, 09 Feb 2016 21:37:18 GMT

    [ https://issues.apache.org/jira/browse/DRILL-4268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15139822#comment-15139822
] 

Ian Maloney commented on DRILL-4268:
------------------------------------

I've upgraded to Drill 1.4 and I have not seen this issue yet. If it does not show up in the
next few weeks, I think this has been fixed in drill 1.4

> Possible resource leak leading to SocketException: Too many open files
> ----------------------------------------------------------------------
>
>                 Key: DRILL-4268
>                 URL: https://issues.apache.org/jira/browse/DRILL-4268
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>         Environment: RHEL 6 running against Hive storage type
>            Reporter: Ian Maloney
>
> I have a java app accessing Drill 1.2 via JDBC, which runs 100s of counts on various
tables. No concurrency is being used. The JDBC URL uses the format: 
> jdbc:drill:drillbit=a-bits-hostname
> Hanifi suggested I check for open file descriptors using: 
> lsof -a -p DRILL_PID | wc -l
> which I did on the two nodes, I currently have running drill, both, before and
> after restarting.
> Node from JDBC connection string (which had been previously restarted):
>    Before: 396
>    After: 396
> Other node:
>    Before: 14
>    After: 395
> The error, "Too many open files", persists after restarting the bits.
> Opened as a result of this thread:
> http://mail-archives.apache.org/mod_mbox/drill-user/201601.mbox/browser



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