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https://issues.apache.org/jira/browse/YARN-659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13797341#comment-13797341
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Tsuyoshi OZAWA commented on YARN-659:
-------------------------------------
This is the summary of current znode structure(Before) and proposed znode
structure(After). Could you review these?
Before:
{code}
ROOT_DIR_PATH
|--- RM_APP_ROOT
|----- (#ApplicationId) /* update when YARN application starts. */
|----- (#ApplicationAttemptId) /* update when containers are allocated.
*/
|--- RM_DT_SECRET_MANAGER_ROOT
|----- RMDelegationToken_(SequenceNumber) /* update when containers are
assigned */
|----- RMDTSequenceNumber_(SequenceNumber)) /* update when containers
are assigned. A global variable. */
{code}
After(Our proposal):
{code}
ROOT_DIR_PATH
|--- RM_APP_ROOT
| |----- (#ApplicationId1)
| | |----- ATTEMPT_IDS
| | | |----- (#ApplicationAttemptIds)
| | |----- TOKENS
| | |----- RMDelegationToken_(#SequenceNumber)
| |----- (#ApplicationId2)
| | |----- ATTEMPT_IDS
| | | |----- (#ApplicationAttemptIds)
| | |----- TOKENS
| | |----- RMDelegationToken_(#SequenceNumber)
| ,,,,
|--- RM_DT_SECRET_MANAGER_ROOT
|----- RMDTSequenceNumber_(SequenceNumber)
{code}
> RMStateStore's removeApplication APIs should just take an applicationId
> -----------------------------------------------------------------------
>
> Key: YARN-659
> URL: https://issues.apache.org/jira/browse/YARN-659
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Tsuyoshi OZAWA
>
> There is no need to give in the whole state for removal - just an ID should
> be enough when an app finishes.
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