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https://issues.apache.org/jira/browse/MAPREDUCE-405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-405.
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Resolution: Fixed
I haven't seen this in forever, so I'm guess it's been fixed. Closing.
> ReduceTask logs show negative values
> ------------------------------------
>
> Key: MAPREDUCE-405
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-405
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Amar Kamat
> Priority: Minor
>
> While running some tests I can see negative values in reducers log. Something
> like
> {noformat}
> localhost Will be considered after: -2 seconds
> {noformat}
> Looking at the code it looks like this happens when a node which was
> temporarily down comes back (i.e becomes available). In such a case the node
> is still in the penalty box and also in the unique hosts structure.
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