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From "Bibin A Chundatt (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6420) RM startup failure due to wrong order of editlog
Date Fri, 31 Mar 2017 08:38:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15950533#comment-15950533
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Bibin A Chundatt commented on YARN-6420:
----------------------------------------

We should have write lock for {{addToCluserNodeLabels}} , {{addToCluserNodeLabelsWithDefaultExclusivity}}
 {{addLabelsToNode}}  

> RM startup failure due to wrong order of editlog
> ------------------------------------------------
>
>                 Key: YARN-6420
>                 URL: https://issues.apache.org/jira/browse/YARN-6420
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>            Priority: Critical
>
> Edit log file for nodelabel written in wrong order if {{StoreNewClusterNodeLabels}} addition
is delayed and {{UpdateNodeToLabelsMappingsEvent}} is added to dispatcher.
> Configure RM admin client thread count to 2
> Add node label to cluster X - Client 1
> Delay event addition to dispatcher 
> Replace node label on node1  to X - Client 2
> Make sure {{UpdateNodeToLabelsMappingsEvent}} added to dispatcher first.
> Restart  resource manager
> {noformat}
> 2017-03-31 16:20:42,236 | WARN  | main-EventThread | Exception handling the winning of
election | ActiveStandbyElector.java:836
> org.apache.hadoop.ha.ServiceFailedException: RM could not transition to Active
>         at org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:128)
>         at org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:832)
>         at org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:422)
>         at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:728)
>         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:600)
> Caused by: org.apache.hadoop.ha.ServiceFailedException: Error when transitioning to Active
mode
>         at org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToActive(AdminService.java:331)
>         at org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeActive(EmbeddedElectorService.java:126)
>         ... 4 more
> Caused by: org.apache.hadoop.service.ServiceStateException: java.io.IOException: Not
all labels being replaced contained by known label collections, please check, new labels=[1]
>         at org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:59)
>         at org.apache.hadoop.service.AbstractService.start(AbstractService.java:204)
>         at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStart(ResourceManager.java:642)
>         at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startActiveServices(ResourceManager.java:1042)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1083)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$1.run(ResourceManager.java:1079)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
> {noformat}



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