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https://issues.apache.org/jira/browse/YARN-948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13724357#comment-13724357
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Vinod Kumar Vavilapalli commented on YARN-948:
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+1, looks good. Checking this in.
> RM should validate the release container list before actually releasing them
> ----------------------------------------------------------------------------
>
> Key: YARN-948
> URL: https://issues.apache.org/jira/browse/YARN-948
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Omkar Vinit Joshi
> Assignee: Omkar Vinit Joshi
> Attachments: YARN-948-20130724.patch, YARN-948-20130726.1.patch,
> YARN-948-20130729.1.patch
>
>
> At present we are blinding passing the allocate request containing containers
> to be released to the scheduler. This may result into one application
> releasing another application's container.
> {code}
> @Override
> @Lock(Lock.NoLock.class)
> public Allocation allocate(ApplicationAttemptId applicationAttemptId,
> List<ResourceRequest> ask, List<ContainerId> release,
> List<String> blacklistAdditions, List<String> blacklistRemovals) {
> FiCaSchedulerApp application = getApplication(applicationAttemptId);
> ....
> ....
> // Release containers
> for (ContainerId releasedContainerId : release) {
> RMContainer rmContainer = getRMContainer(releasedContainerId);
> if (rmContainer == null) {
> RMAuditLogger.logFailure(application.getUser(),
> AuditConstants.RELEASE_CONTAINER,
> "Unauthorized access or invalid container", "CapacityScheduler",
> "Trying to release container not owned by app or with invalid
> id",
> application.getApplicationId(), releasedContainerId);
> }
> completedContainer(rmContainer,
> SchedulerUtils.createAbnormalContainerStatus(
> releasedContainerId,
> SchedulerUtils.RELEASED_CONTAINER),
> RMContainerEventType.RELEASED);
> }
> {code}
> Current checks are not sufficient and we should prevent this..... thoughts?
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