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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-695) Unexpected NPE from the next method of StreamLineRecordReader fails map/reduce jobs
Date Wed, 15 Nov 2006 05:07:38 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-695?page=all ]

Hairong Kuang updated HADOOP-695:
---------------------------------

    Status: Patch Available  (was: Open)

> Unexpected NPE from the next method of StreamLineRecordReader fails map/reduce jobs
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-695
>                 URL: http://issues.apache.org/jira/browse/HADOOP-695
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/streaming
>    Affects Versions: 0.8.0
>            Reporter: Hairong Kuang
>         Assigned To: Hairong Kuang
>             Fix For: 0.9.0
>
>         Attachments: NPE.patch
>
>
> For some reason that I do not have much idea, if input of a map/reduce job is gzipped,
an unexpected null pointer may be returned from UTF8ByteArrayUtils.readline in the next method
of StreamLineRecordReader. However the pointer is read before a null pointer check is performed.
Thus a NPE may be thrown and fail the job.

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