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Tsz Wo (Nicholas), SZE commented on MAPREDUCE-4309: --------------------------------------------------- Abstract Factory sounds good. For the enum problem, let's use enum for the moment and change it to interfaces later. (Sorry that I was not able to response earlier.) > Make locatlity in YARN's container assignment and task scheduling pluggable > for other deployment topology > --------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-4309 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4309 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 1.0.0, 2.0.0-alpha > Reporter: Junping Du > Assignee: Junping Du > Attachments: > HADOOP-8474-ContainerAssignmentTaskScheduling-pluggable.patch, > MAPREDUCE-4309-v2.patch, MAPREDUCE-4309-v3.patch, MAPREDUCE-4309-v4.patch, > MAPREDUCE-4309-v5.patch, MAPREDUCE-4309.patch > > > 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira