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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8474) Make locatlity in YARN's container assignment and task scheduling pluggable for other deployment topology
Date Mon, 04 Jun 2012 06:06:23 GMT
Junping Du created HADOOP-8474:
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             Summary: Make locatlity in YARN's container assignment and task scheduling pluggable
for other deployment topology
                 Key: HADOOP-8474
                 URL: https://issues.apache.org/jira/browse/HADOOP-8474
             Project: Hadoop Common
          Issue Type: Sub-task
    Affects Versions: 2.0.0-alpha, 1.0.0
            Reporter: Junping Du


There are several classes in YARN’s container assignment and task scheduling algorithms
that relate to data locality which were updated to give preference to running a container
on other locality besides node-local and rack-local (like nodegroup-local). This propose to
make these data structure/algorithms pluggable, like: SchedulerNode, RMNodeImpl, etc. The
inner class ScheduledRequests was made a package level class to it would be easier to create
a subclass, ScheduledRequestsWithNodeGroup.

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