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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-943) Pig crash when it cannot get counter from hadoop
Date Fri, 04 Sep 2009 22:44:58 GMT

     [ https://issues.apache.org/jira/browse/PIG-943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai updated PIG-943:
---------------------------

    Status: Open  (was: Patch Available)

> Pig crash when it cannot get counter from hadoop
> ------------------------------------------------
>
>                 Key: PIG-943
>                 URL: https://issues.apache.org/jira/browse/PIG-943
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.3.0
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: 0.4.0
>
>         Attachments: PIG-943-1.patch, PIG-943-2.patch
>
>
> We see following call stacks in Pig:
> Case 1:
> Caused by: java.lang.NullPointerException
>         at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.computeWarningAggregate(MapReduceLauncher.java:390)
>         at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:238)
>         at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:265)
> Case 2:
> Caused by: java.lang.NullPointerException
>         at org.apache.pig.tools.pigstats.PigStats.accumulateMRStats(PigStats.java:150)
>         at org.apache.pig.tools.pigstats.PigStats.accumulateStats(PigStats.java:91)
>         at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:192)
>         at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:265)
> In both cases, hadoop jobs finishes without error. The cause of both problems is RunningJob.getCounters()
returns a null, and Pig do not currently check for that. 

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