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https://issues.apache.org/jira/browse/HADOOP-5746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj Das updated HADOOP-5746:
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Attachment: 5746.1.patch
Ok here is an early version of the patch (no testcase yet). The patch applies
on 0.18 as well.
> Errors encountered in MROutputThread after the last map/reduce call can go
> undetected
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-5746
> URL: https://issues.apache.org/jira/browse/HADOOP-5746
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/streaming
> Reporter: Devaraj Das
> Fix For: 0.21.0
>
> Attachments: 5746.1.patch
>
>
> The framework map/reduce bridge methods make a check at the beginning of the
> respective methods whether _MROutputThread_ encountered an exception while
> writing keys/values that the streaming process emitted. However, if the
> exception happens in _MROutputThread_ after the last call to the map/reduce
> method, the exception goes undetected. An example of such an exception is an
> exception from the _DFSClient_ that fails to write to a file on the HDFS.
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