Dillon Zhang created YARN-8495:
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Summary: Priority scheduling support in FairShare scheduler
Key: YARN-8495
URL: https://issues.apache.org/jira/browse/YARN-8495
Project: Hadoop YARN
Issue Type: Wish
Components: fairscheduler
Reporter: Dillon Zhang
In production environment, priority scheduling is of vital importance to us as
we have lots of queues for different departments, then create applications but
some of them are not so important as others, so we must guarantee the import
ones to supply service.
Based on the priority of the application, Fair Scheduler should be able to give
preference to application while scheduling.
Comparator<FairShareComparator> applicationComparator can be changed as below.
1. Check for Application priority. If priority is available, then return the
highest priority job.
2. Otherwise continue with existing logic such as Fair Share comparison and App
ID comparison and then TimeStamp comparison.
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