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From "Jothi Padmanabhan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4011) shuffling backoff 5 minutes despite the whole cluster is idle
Date Wed, 26 Nov 2008 08:24:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650897#action_12650897

Jothi Padmanabhan commented on HADOOP-4011:

This should no longer be seen as we reverted back HADOOP-3327. 
Runping, can you confirm if you have observed similar behavior in recent times? As per the
current code, the retry should be almost immediate (4 seconds)

> shuffling backoff 5 minutes despite the whole cluster is idle
> -------------------------------------------------------------
>                 Key: HADOOP-4011
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4011
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Runping Qi
>            Assignee: Amareshwari Sriramadasu
> A reducer of a mapred job got a read time out exception during fetching the last map
output segment.
> The reducer waited 5 minutes before re-fetch the map output, even though the whole cluster
was idle during that period.

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