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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-6157) Inconsistencies in verifying Max Applications
Date Wed, 08 Feb 2017 01:17:41 GMT
Naganarasimha G R created YARN-6157:

             Summary: Inconsistencies in verifying Max Applications
                 Key: YARN-6157
                 URL: https://issues.apache.org/jira/browse/YARN-6157
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Naganarasimha G R

Inconsistencies in verifying Max Applications when the max apps is reduced and either HA is
done ow work preserving restart is done.

# currently Max applications across cluster should not be done for the recovered apps. Seems
like currently we are doing it
#  Max applications for a queue is done @ CapacityScheduler.addApplication which considers
sum of Pending and running applications but we add to pending applications in {{CapacityScheduler.addApplicationAttempt
-> LeafQueue.addApplicationAttempt}} so between these 2 checks we can activate more apps
than what can queue restrict.
# During recovery of a RMApp, if applicationAttempts are not found then we recover it without
recovery false @ {{RMAppImpl.RMAppRecoveredTransition}}, this can lead to failure of apps
which were accepted earlier but attempt was not yet created and HA happens when MAX app configuration
(for cluster/queue) is modified.

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