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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1105) Reducers don't make "progress" while iterating through values
Date Fri, 30 Mar 2007 16:29:25 GMT

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

Devaraj Das updated HADOOP-1105:
--------------------------------

    Attachment: 1105.patch

I am attaching a patch for this. Please review it, and if it seems ok, please schedule it
for the 0.12.3 release. It will really help in alleviating the "Task failed to report status
for X seconds .. killing" failures.

> 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: 0.13.0
>
>         Attachments: 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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