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Posted to yarn-issues@hadoop.apache.org by "Bikas Saha (JIRA)" <ji...@apache.org> on 2013/07/12 19:57:50 UTC
[jira] [Updated] (YARN-541) getAllocatedContainers() is not
returning all the allocated containers
[ https://issues.apache.org/jira/browse/YARN-541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bikas Saha updated YARN-541:
----------------------------
Attachment: YARN-541.1.patch
Attaching patch that fixes the race condition. No test since I cannot think of a way to repro this.
> 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
> Assignee: Omkar Vinit Joshi
> Attachments: AppMaster.stdout, YARN-541.1.patch, yarn-dsadm-nodemanager-isredeng.out, yarn-dsadm-resourcemanager-isredeng.out
>
>
> 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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