[jira] Commented: (PIG-179) On hadoop 0.16, some jobs using combiner fail with an NPE

["Olga Natkovich (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584835#action_12584835 ] 

Olga Natkovich commented on PIG-179:
------------------------------------

Looks good. +1

> On hadoop 0.16, some jobs using combiner fail with an NPE
> ---------------------------------------------------------
>
>                 Key: PIG-179
>                 URL: https://issues.apache.org/jira/browse/PIG-179
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.0.0
>         Environment: Hadoop 0.16
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>         Attachments: PIG-179.patch
>
>
> Some jobs (it appears to only be larger jobs) now fail with an NPE in the combiner code on this line:
> {code}
> PigSplit split = PigInputFormat.PigRecordReader.getPigRecordReader().getPigFileSplit();
> {code}
> Looking into the PigRecordReader a comment in the class indicates that, as implemented, it depends on the mapper and splitter (and in this case the combiner as well) running in the same thread.  It seems that in some cases in hadoop 0.16 this is no longer the case.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.