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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5845) Skip aclUpdated event publish to timelineserver or recovery
Date Mon, 07 Nov 2016 14:08:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15644265#comment-15644265
] 

Varun Saxena commented on YARN-5845:
------------------------------------

I think Solution 1 i.e. using application start time for ACL updated event should be fine

> Skip aclUpdated event publish to timelineserver or recovery
> -----------------------------------------------------------
>
>                 Key: YARN-5845
>                 URL: https://issues.apache.org/jira/browse/YARN-5845
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>            Priority: Critical
>
> Currently ACL update event is send to timeline server even on recovery {{RMAppManager#createAndPopulateNewRMApp}}.
> For 10K completed application when RM is restarted 10K ACL updated event is added to
timelinesever causing unnecessary over loading of system
> {code}
>     String appViewACLs = submissionContext.getAMContainerSpec()
>         .getApplicationACLs().get(ApplicationAccessType.VIEW_APP);
>     rmContext.getSystemMetricsPublisher().appACLsUpdated(
>         application, appViewACLs, System.currentTimeMillis());
> {code}
> *Events on each RM restart*
> {noformat}
>     "events": [{
>             "timestamp": 1478520292543,
>             "eventtype": "YARN_APPLICATION_ACLS_UPDATED",
>             "eventinfo": {}
>         }, {
>             "timestamp": 1478519600537,
>             "eventtype": "YARN_APPLICATION_ACLS_UPDATED",
>             "eventinfo": {}
>         }, {
>             "timestamp": 1478519557101,
>             "eventtype": "YARN_APPLICATION_ACLS_UPDATED",
>             "eventinfo": {}
>         }, 
> {noformat}



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