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https://issues.apache.org/jira/browse/TEZ-1635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14161358#comment-14161358
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Bikas Saha commented on TEZ-1635:
---------------------------------
Rajesh. That was my observation too (see the first comment). The mapper was
missing at least 1 InputDataInformationEvent. Your analysis of Custom vertex
manager seems to root cause it to the vertex manager having a race in it.
[~vikram.dixit] made some fixes in it related to the setVertexParallelism()
that creates an ordering in the code. Will that help here?
> Dag gets stuck intermittently
> -----------------------------
>
> Key: TEZ-1635
> URL: https://issues.apache.org/jira/browse/TEZ-1635
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.5.0
> Reporter: Vikram Dixit K
> Priority: Blocker
> Attachments: Screen Shot 2014-10-05 at 9.46.31 AM.png,
> syslog_dag_1412109415326_0002_10.gz, tez_smb_1_hung_job.log,
> tez_smb_1_successful_job.log
>
>
> Attaching logs for the dag.
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