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https://issues.apache.org/jira/browse/TEZ-2375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14516222#comment-14516222
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Hitesh Shah commented on TEZ-2375:
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A different approach is to send back a recovering status back to the client and
the client should be changed to cache the last seen valid progress. Using this,
the user will never see a regression in progress unless recovery fails.
> Don't return dag status to client when dag is still in recovering
> ------------------------------------------------------------------
>
> Key: TEZ-2375
> URL: https://issues.apache.org/jira/browse/TEZ-2375
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
>
> Should only return dag status to client after the whole recovery process is
> done (DAG/Vertex/Task/TaskAttempt are all recovered to its correct state)
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