[jira] [Created] (YARN-7636) Re-reservation count may overflow when cluster resource exhausted for a long time

["Tao Yang (JIRA)" <ji...@apache.org>]

Tao Yang created YARN-7636:
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             Summary: Re-reservation count may overflow when cluster resource exhausted for a long time 
                 Key: YARN-7636
                 URL: https://issues.apache.org/jira/browse/YARN-7636
             Project: Hadoop YARN
          Issue Type: Bug
          Components: capacityscheduler
    Affects Versions: 3.0.0-alpha4, 2.9.1
            Reporter: Tao Yang
            Assignee: Tao Yang


Exception stack:
{noformat}
java.lang.IllegalArgumentException: Overflow adding 1 occurrences to a count of 2147483647
        at com.google.common.collect.ConcurrentHashMultiset.add(ConcurrentHashMultiset.java:246)
        at com.google.common.collect.AbstractMultiset.add(AbstractMultiset.java:80)
        at com.google.common.collect.ConcurrentHashMultiset.add(ConcurrentHashMultiset.java:51)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt.addReReservation(SchedulerApplicationAttempt.java:406)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt.reserve(SchedulerApplicationAttempt.java:555)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.reserve(FiCaSchedulerApp.java:1076)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.apply(FiCaSchedulerApp.java:795)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.tryCommit(CapacityScheduler.java:2770)
        at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler$ResourceCommitterService.run(CapacityScheduler.java:546)
{noformat}
We can add check condition {{getReReservations(schedulerKey) < Integer.MAX_VALUE}} before  addReReservation to avoid this problem.



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