Jun Gong created YARN-3057:
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Summary: Need update apps' runnability when reloading allocation
files for FairScheduler
Key: YARN-3057
URL: https://issues.apache.org/jira/browse/YARN-3057
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Reporter: Jun Gong
Assignee: Jun Gong
If we submit a app and the number of running app in its corresponding leaf
queue has reached its max limit, the app will be put into 'nonRunnableApps'.
And its runnabiltiy will only be updated when removing a
appattempt(FairScheduler will call `updateRunnabilityOnAppRemoval` at that
time).
Suppose there are only service apps running, they will not finish, so the
submitted app will not be scheduled even we change leaf queue's max limit. I
think we need update apps' runnability when reloading allocation files for
FairScheduler.
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