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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1210) During RM restart, RM should start a new attempt only when previous attempt exits for real
Date Tue, 19 Nov 2013 06:53:24 GMT

    [ https://issues.apache.org/jira/browse/YARN-1210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826255#comment-13826255
] 

Hudson commented on YARN-1210:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #4757 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/4757/])
YARN-1210. Changed RM to start new app-attempts on RM restart only after ensuring that previous
AM exited or after expiry time. Contributed by Omkar Vinit Joshi. (vinodkv: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1543310)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/NodeHeartbeatRequest.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/RegisterNodeManagerRequest.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/NodeHeartbeatRequestPBImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/RegisterNodeManagerRequestPBImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/records/NodeStatus.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/records/impl/pb/NodeStatusPBImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/proto/yarn_server_common_service_protos.proto
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeStatusUpdater.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeStatusUpdaterImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/ContainerManagerImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/container/ContainerImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptState.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockNM.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java


> During RM restart, RM should start a new attempt only when previous attempt exits for
real
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-1210
>                 URL: https://issues.apache.org/jira/browse/YARN-1210
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Omkar Vinit Joshi
>             Fix For: 2.3.0
>
>         Attachments: YARN-1210.1.patch, YARN-1210.2.patch, YARN-1210.3.patch, YARN-1210.4.patch,
YARN-1210.4.patch, YARN-1210.5.patch, YARN-1210.6.patch, YARN-1210.7.patch
>
>
> When RM recovers, it can wait for existing AMs to contact RM back and then kill them
forcefully before even starting a new AM. Worst case, RM will start a new AppAttempt after
waiting for 10 mins ( the expiry interval). This way we'll minimize multiple AMs racing with
each other. This can help issues with downstream components like Pig, Hive and Oozie during
RM restart.
> In the mean while, new apps will proceed as usual as existing apps wait for recovery.
> This can continue to be useful after work-preserving restart, so that AMs which can properly
sync back up with RM can continue to run and those that don't are guaranteed to be killed
before starting a new attempt.



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