[
https://issues.apache.org/jira/browse/YARN-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14946394#comment-14946394
]
Hudson commented on YARN-4209:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #2434 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2434/])
YARN-4209. RMStateStore FENCED state doesnât work due to (rohithsharmaks: rev
9156fc60c654e9305411686878acb443f3be1e67)
* hadoop-yarn-project/CHANGES.txt
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestMemoryRMStateStore.java
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/RMStateStore.java
> RMStateStore FENCED state doesn’t work due to updateFencedState called by
> stateMachine.doTransition
> ---------------------------------------------------------------------------------------------------
>
> Key: YARN-4209
> URL: https://issues.apache.org/jira/browse/YARN-4209
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.7.2
> Reporter: zhihai xu
> Assignee: zhihai xu
> Priority: Critical
> Fix For: 2.7.2
>
> Attachments: YARN-4209.000.patch, YARN-4209.001.patch,
> YARN-4209.002.patch, YARN-4209.branch-2.7.patch
>
>
> RMStateStore FENCED state doesn’t work due to {{updateFencedState}} called by
> {{stateMachine.doTransition}}. The reason is
> {{stateMachine.doTransition}} called from {{updateFencedState}} is embedded
> in {{stateMachine.doTransition}} called from public
> API(removeRMDelegationToken...) or {{ForwardingEventHandler#handle}}. So
> right after the internal state transition from {{updateFencedState}} changes
> the state to FENCED state, the external state transition changes the state
> back to ACTIVE state. The end result is that RMStateStore is still in ACTIVE
> state even after {{notifyStoreOperationFailed}} is called. The only working
> case for FENCED state is {{notifyStoreOperationFailed}} called from
> {{ZKRMStateStore#VerifyActiveStatusThread}}.
> For example: {{removeRMDelegationToken}} => {{handleStoreEvent}} => enter
> external {{stateMachine.doTransition}} => {{RemoveRMDTTransition}} =>
> {{notifyStoreOperationFailed}}
> =>{{updateFencedState}}=>{{handleStoreEvent}}=> enter internal
> {{stateMachine.doTransition}} => exit internal {{stateMachine.doTransition}}
> change state to FENCED => exit external {{stateMachine.doTransition}} change
> state to ACTIVE.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
