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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-6157) Inconsistencies in verifying Max Applications
Date Wed, 08 Feb 2017 01:18:41 GMT

     [ https://issues.apache.org/jira/browse/YARN-6157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Naganarasimha G R reassigned YARN-6157:
---------------------------------------

    Assignee: Naganarasimha G R

> 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
>            Assignee: 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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