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Posted to mapreduce-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2011/04/07 17:42:22 UTC
[jira] [Commented] (MAPREDUCE-2141) Add an "extra data" field to
Task for use by Mesos
[ https://issues.apache.org/jira/browse/MAPREDUCE-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13016969#comment-13016969 ]
Hudson commented on MAPREDUCE-2141:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #643 (See [https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk/643/])
> 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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