sandflee created YARN-5453:
------------------------------
Summary: FairScheduler#update may skip update demand resource of
child queue/app if current demand reached maxResource
Key: YARN-5453
URL: https://issues.apache.org/jira/browse/YARN-5453
Project: Hadoop YARN
Issue Type: Bug
Reporter: sandflee
Assignee: sandflee
{code}
demand = Resources.createResource(0);
for (FSQueue childQueue : childQueues) {
childQueue.updateDemand();
Resource toAdd = childQueue.getDemand();
demand = Resources.add(demand, toAdd);
demand = Resources.componentwiseMin(demand, maxRes);
if (Resources.equals(demand, maxRes)) {
break;
}
}
{code}
if one singe queue's demand resource exceed maxRes, the other queue's demand
resource will not update.
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