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https://issues.apache.org/jira/browse/MAPREDUCE-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matei Zaharia updated MAPREDUCE-2141:
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Resolution: Fixed
Fix Version/s: 0.22.0
Status: Resolved (was: Patch Available)
I've committed this. Thanks for the reviews, Owen and Arun!
> Add an "extra data" field to Task for use by Mesos
> --------------------------------------------------
>
> Key: MAPREDUCE-2141
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2141
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Matei Zaharia
> Assignee: Matei Zaharia
> Priority: Minor
> Fix For: 0.22.0
>
> Attachments: mapreduce-2141-v1.patch, mapreduce-2141-v2.patch
>
>
> In order to support running Hadoop on the Mesos cluster manager
> (http://mesos.berkeley.edu/), I'd like to add an extra String field to the
> Task class to allow extra data (a Mesos task ID) to be associated with each
> task. This should have no impact on normal operation other than making the
> serialized form of Task a few bytes longer. In the Mesos support patch for
> Hadoop, this field is set by a pluggable Hadoop scheduler implementation to
> allow code on the TaskTracker side to see which Mesos task corresponds to
> each Hadoop task.
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