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https://issues.apache.org/jira/browse/TEZ-4547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17826814#comment-17826814
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Venkatasubrahmanian Narayanan commented on TEZ-4547:
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Github PR: https://github.com/apache/tez/pull/339
> Add Tez AM JobID to the JobConf
> -------------------------------
>
> Key: TEZ-4547
> URL: https://issues.apache.org/jira/browse/TEZ-4547
> Project: Apache Tez
> Issue Type: Improvement
> Affects Versions: 0.10.2
> Reporter: Venkatasubrahmanian Narayanan
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Tez creates JobIDs for tasks by appending the vertex index to the cluster
> timestamp to avoid multiple jobs run in a single Tez session sharing a JobID.
> Hadoop's MagicS3GuardCommitter needs a job-wide UUID to ensure that the task
> committers and the job committer write to/read from the same paths and can
> hence actually commit data. Adding the AM's JobID to the Configuration
> objects allows applications like Hive to pass that as the UUID to the
> committer.
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