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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2008/04/01 01:38:24 UTC

[jira] Commented: (HADOOP-3142) Increase the number of open files for unit tests under Hudson

    [ https://issues.apache.org/jira/browse/HADOOP-3142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12583931#action_12583931 ] 

Doug Cutting commented on HADOOP-3142:
--------------------------------------

The default on linux has long been 1024, so it would be nice if things ran in that by default.

> Increase the number of open files for unit tests under Hudson
> -------------------------------------------------------------
>
>                 Key: HADOOP-3142
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3142
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: scripts
>            Reporter: Owen O'Malley
>            Assignee: Mukund Madhugiri
>             Fix For: hudson
>
>
> Lucene.zones.apache.org and I assume hudson.zones limit the number of file handles to 256. TestMiniMRDFSSort runs better with more file handles. (I set it to 10000 in my testing, but a smaller value is probably ok.) I suggest the QA scripts increase the ulimit before running the unit tests with "ulimit -n 10000".

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