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Date: Fri, 31 May 2013 22:30:21 +0000 (UTC)
From: "Cheolsoo Park (JIRA)" <jira@apache.org>
To: pig-dev@hadoop.apache.org
Message-ID: <JIRA.12644000.1366664777297.49453.1370039421395@arcas>
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Subject: [jira] [Updated] (PIG-3288) Kill jobs if the number of output files
 is over a configurable limit
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     [ https://issues.apache.org/jira/browse/PIG-3288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cheolsoo Park updated PIG-3288:
-------------------------------

    Status: Patch Available  (was: Open)
    
> Kill jobs if the number of output files is over a configurable limit
> --------------------------------------------------------------------
>
>                 Key: PIG-3288
>                 URL: https://issues.apache.org/jira/browse/PIG-3288
>             Project: Pig
>          Issue Type: Wish
>            Reporter: Cheolsoo Park
>            Assignee: Cheolsoo Park
>             Fix For: 0.12
>
>         Attachments: PIG-3288-2.patch, PIG-3288-3.patch, PIG-3288.patch
>
>
> I ran into a situation where a Pig job tried to create too many files on hdfs and overloaded NN. To prevent such events, it would be nice if we could set a upper limit on the number of files that a Pig job can create.
> In fact, Hive has a property called "hive.exec.max.created.files". The idea is that each mapper/reducer increases a counter every time when they create files. Then, MRLauncher periodically checks whether the number of created files so far has exceeded the upper limit. If so, we kill running jobs and exit.

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