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Robert Kanter commented on YARN-7600: ------------------------------------- {quote}However, my problem is that if the *allowRelaxity* for RACK_LOCAL and OFF_SWITCH is true,{quote} [~wuchang1989], I assume by "allowRelaxity" you mean "relaxLocality"? I'm not sure. I haven't looked to much at that part of the code - it may also depend on which Scheduler is used. [~wuchang1989], are you actually seeing this behavior? Or is this speculation? > Yarn NODE_LOCAL request downgraded to RACK_LOCAL didn't cancel the original > NODE_LOCAL request > ----------------------------------------------------------------------------------------------- > > Key: YARN-7600 > URL: https://issues.apache.org/jira/browse/YARN-7600 > Project: Hadoop YARN > Issue Type: Task > Affects Versions: 2.7.3 > Reporter: wuchang > > I know, when AM making container request, if the request container is > NODE_LOCAL, then AM will also send out RACK_LOCAL and OFF_SWITCH requests. On > the ResourceManager side, if RM successfully assigned a NODE_LOCAL container, > I saw that RM canceled RACK_LOCAL and OFF_SWITCH requests because it was a > duplicated request and did not need to be allocated any more. > However, my problem is that if the **allowRelaxity** for RACK_LOCAL and > OFF_SWITCH is true, NODE_LOCAL request is downgraded to RACK_LOCAL , thus > NODE_LOCAL's request is allocated with RACK_LOCAL locality, then OFF_SWITCH's > duplicated request will be canceled of cource, however I did not see RM > cancel the duplicated NODE_LOCAL request, so, won't it lead to NODE_LOCAL > request still exist and then be scheduled in the next-round scheduling? -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org