Prabhu Joseph created YARN-4256:
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Summary: YARN fair scheduler vcores with decimal values
Key: YARN-4256
URL: https://issues.apache.org/jira/browse/YARN-4256
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler
Affects Versions: 2.7.1
Reporter: Prabhu Joseph
Priority: Critical
Fix For: 2.7.2
When the queue with vcores is in decimal value, the value after the decimal
point is taken as vcores by FairScheduler.
For the below queue,
<minResources>20000 mb,20 vcores,20.25 disks</minResources>
<maxResources>30000 mb,40.2 vcores,30.25 disks</maxResources>
When many applications submitted parallely into queue, all were in PENDING
state as the vcores is taken as 2 skipping the value 40.
The code FairSchedulerConfiguration.java to Pattern match the vcores has to be
improved in such a way either throw AllocationConfigurationException("Missing
resource") or consider the value before decimal.
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