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Posted to yarn-issues@hadoop.apache.org by "Sunil G (JIRA)" <ji...@apache.org> on 2016/07/08 16:38:11 UTC
[jira] [Updated] (YARN-5101) YARN_APPLICATION_UPDATED event is
parsed in
ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with
reversed order
[ https://issues.apache.org/jira/browse/YARN-5101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sunil G updated YARN-5101:
--------------------------
Attachment: YARN-5101.0001.patch
Attaching a patch addressing this issue.
As mentioned earlier, we could check for the time stamp as a reference to identify the latest event. During appUpdate event, since we are ensuring that all params (queue name, priority) are updated, we do not need to handle cases like partial updates for one parameter in certain events.
[~xgong], [~rohithsharma], please help to check the patch.
> YARN_APPLICATION_UPDATED event is parsed in ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with reversed order
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-5101
> URL: https://issues.apache.org/jira/browse/YARN-5101
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.8.0
> Reporter: Xuan Gong
> Assignee: Sunil G
> Attachments: YARN-5101.0001.patch
>
>
> Right now, the application events are parsed in in ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with timestamp descending order, which means the later events would be parsed first, and the previous same type of events would override the information. In
> https://issues.apache.org/jira/browse/YARN-4044, we have introduced YARN_APPLICATION_UPDATED events which might be submitted by RM multiple times in one application life cycle. This could cause problem.
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