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yangcongqi commented on YARN-2083: ---------------------------------- There is a case: queue A maxResource is 1000mb, current usedResource is 900mb(less than maxResource), then a new request with 200mb came, fair scheduler would assign 200mb memory and usedResource=1100mb(over maxResource). > In fair scheduler, Queue should not been assigned more containers when its > usedResource had reach the maxResource limit > ----------------------------------------------------------------------------------------------------------------------- > > Key: YARN-2083 > URL: https://issues.apache.org/jira/browse/YARN-2083 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.3.0 > Reporter: Yi Tian > Labels: BB2015-05-TBR > Attachments: YARN-2083-1.patch, YARN-2083-2.patch, YARN-2083-3.patch, > YARN-2083-4.patch, YARN-2083.patch > > > In fair scheduler, FSParentQueue and FSLeafQueue do an > assignContainerPreCheck to guaranty this queue is not over its limit. > But the fitsIn function in Resource.java did not return false when the > usedResource equals the maxResource. > I think we should create a new Function "fitsInWithoutEqual" instead of > "fitsIn" in this case. -- This message was sent by Atlassian JIRA (v6.3.4#6332)