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Posted to mapreduce-issues@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2010/07/12 09:18:51 UTC

[jira] Updated: (MAPREDUCE-1621) Streaming's TextOutputReader.getLastOutput throws NPE if it has never read any output

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sriramadasu updated MAPREDUCE-1621:
-----------------------------------------------

               Status: Patch Available  (was: Open)
    Affects Version/s:     (was: 0.22.0)
                           (was: 0.20.2)
        Fix Version/s: 0.22.0

> Streaming's TextOutputReader.getLastOutput throws NPE if it has never read any output
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1621
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1621
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>    Affects Versions: 0.21.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.22.0
>
>         Attachments: patch-1621.txt
>
>
> If TextOutputReader.readKeyValue() has never successfully read a line, then its bytes member will be left null. Thus when logging a task failure, PipeMapRed.getContext() can trigger an NPE when it calls outReader_.getLastOutput().

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