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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1105) Reducers don't make "progress" while iterating through values
Date Wed, 04 Apr 2007 06:55:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-1105:
----------------------------------

    Status: Open  (was: Patch Available)

Devaraj pointed out that I shouldn't have added IOException to the throws clause of informReduceProgress,
although in reality it can't be thrown by the current code.

> Reducers don't make "progress" while iterating through values
> -------------------------------------------------------------
>
>                 Key: HADOOP-1105
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1105
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.12.0
>            Reporter: Owen O'Malley
>         Assigned To: Owen O'Malley
>             Fix For: 0.12.3
>
>         Attachments: 1105-3.patch, 1105.new1.patch, 1105.new1.patch, 1105.patch, 1105.patch
>
>
> Reduces make progress when they go to a new key, but not when they read the next value,
which could cause reduces to time out when they have a lot of values for the same key.

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