[
https://issues.apache.org/jira/browse/TEZ-714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14379887#comment-14379887
]
Jeff Zhang commented on TEZ-714:
--------------------------------
[~bikassaha] Thanks for the suggestion. Upload a patch (unit test is included,
but e2e test in MockDAGAppMaster has not implemented yet. )
> OutputCommitters should not run in the main AM dispatcher thread
> ----------------------------------------------------------------
>
> Key: TEZ-714
> URL: https://issues.apache.org/jira/browse/TEZ-714
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Assignee: Jeff Zhang
> Priority: Critical
> Attachments: DAG_2.pdf, TEZ-714-1.patch, TEZ-714-2.patch,
> TEZ-714-3.patch, Vertex_2.pdf
>
>
> Follow up jira from TEZ-41.
> 1) If there's multiple OutputCommitters on a Vertex, they can be run in
> parallel.
> 2) Running an OutputCommitter in the main thread blocks all other event
> handling, w.r.t the DAG, and causes the event queue to back up.
> 3) This should also cover shared commits that happen in the DAG.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
