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From "Paul Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-457) ScriptOperator should NOT cache all data in stderr
Date Sat, 19 Dec 2009 03:26:18 GMT

     [ https://issues.apache.org/jira/browse/HIVE-457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Paul Yang updated HIVE-457:
---------------------------

    Attachment: HIVE-457.2.patch

Right, missed how ScriptOperator.outThread depends on TextRecordReader

* Changed limit to 10MB
* Added var to conf

Would it be worthwhile to allow the user to specify a different RecordReader for the error
stream? Then we could use a size-limited subclass of TextRecordReader for only the error stream.

> ScriptOperator should NOT cache all data in stderr
> --------------------------------------------------
>
>                 Key: HIVE-457
>                 URL: https://issues.apache.org/jira/browse/HIVE-457
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Zheng Shao
>            Assignee: Paul Yang
>            Priority: Blocker
>             Fix For: 0.5.0
>
>         Attachments: err.sh, HIVE-457.1.patch, HIVE-457.2.patch
>
>
> Sometimes user scripts output a lot of data to stderr without a new line, and this causes
Hive to go out-of-memory.
> We should directly output the data from stderr without caching it.

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