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https://issues.apache.org/jira/browse/TEZ-2870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14948061#comment-14948061
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Hitesh Shah commented on TEZ-2870:
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This is an edge case when the application crashes with the AM not fulling
pushing info to Timeline.
Some points to note:
- to check if the DAG has completed ( when timeline does not have a final
dag status), check RM to see if yarn application has completed.
- If the RM does not have data in its memory, it will try and get the data
from application history if system metrics publisher is enabled
- One thing that is guaranteed is that if the RM does not have it in its
memory, this means that the app has completed ( final status unknown )
> Tez UI: DAG status is not correct when application history is not accessible.
> -----------------------------------------------------------------------------
>
> Key: TEZ-2870
> URL: https://issues.apache.org/jira/browse/TEZ-2870
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Sreenath Somarajapuram
>
> When data is available in RM use RM API to correct the final DAG status than
> application history.
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