[ https://issues.apache.org/jira/browse/YARN-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15395019#comment-15395019 ]
Wangda Tan commented on YARN-5342: ---------------------------------- Committed to trunk/branch-2. [~sunilg], mind to update the patch to branch-2.8? It has some conflicts. Thanks, > Improve non-exclusive node partition resource allocation in Capacity Scheduler > ------------------------------------------------------------------------------ > > Key: YARN-5342 > URL: https://issues.apache.org/jira/browse/YARN-5342 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Wangda Tan > Assignee: Sunil G > Attachments: YARN-5342.1.patch, YARN-5342.2.patch, YARN-5342.3.patch, > YARN-5342.4.patch > > > In the previous implementation, one non-exclusive container allocation is > possible when the missed-opportunity >= #cluster-nodes. And > missed-opportunity will be reset when container allocated to any node. > This will slow down the frequency of container allocation on non-exclusive > node partition: *When a non-exclusive partition=x has idle resource, we can > only allocate one container for this app in every > X=nodemanagers.heartbeat-interval secs for the whole cluster.* > In this JIRA, I propose a fix to reset missed-opporunity only if we have >0 > pending resource for the non-exclusive partition OR we get allocation from > the default partition. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org