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From "Krishna Kishore Bonagiri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-541) getAllocatedContainers() is not returning all the allocated containers
Date Thu, 04 Apr 2013 13:13:26 GMT
Krishna Kishore Bonagiri created YARN-541:
---------------------------------------------

             Summary: getAllocatedContainers() is not returning all the allocated containers
                 Key: YARN-541
                 URL: https://issues.apache.org/jira/browse/YARN-541
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 2.0.3-alpha
         Environment: Redhat Linux 64-bit
            Reporter: Krishna Kishore Bonagiri


I am running an application that was written and working well with the hadoop-2.0.0-alpha
but when I am running the same against 2.0.3-alpha, the getAllocatedContainers() method called
on AMResponse is not returning all the containers allocated sometimes. For example, I request
for 10 containers and this method gives me only 9 containers sometimes, and when I looked
at the log of Resource Manager, the 10th container is also allocated. It happens only sometimes
randomly and works fine all other times. If I send one more request for the remaining container
to RM after it failed to give them the first time(and before releasing already acquired ones),
it could allocate that container. I am running only one application at a time, but 1000s of
them one after another.

My main worry is, even though the RM's log is saying that all 10 requested containers are
allocated,  the getAllocatedContainers() method is not returning me all of them, it returned
only 9 surprisingly. I never saw this kind of issue in the previous version, i.e. hadoop-2.0.0-alpha.

Thanks,
Kishore

 

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