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https://issues.apache.org/jira/browse/TEZ-2628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14696028#comment-14696028
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Jason Lowe commented on TEZ-2628:
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One advantage of getting Hive to post this via HDFS is that it removes the need
to grab a delegation token for the hive CLI when run under Oozie. That helps
remove the timeline server from the critical path of getting jobs to run.
> History logging plugin to write ATS events to HDFS
> --------------------------------------------------
>
> Key: TEZ-2628
> URL: https://issues.apache.org/jira/browse/TEZ-2628
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: TEZ-2628.001.patch, hive-timeline.json
>
>
> This provides another history logging alternative that conceptually the same
> as the timeline logging service but logs the entities to a file rather than
> posting the events to the timeline server directly. When coupled with the
> timeline store plugin from YARN-3942 it allows the Tez job to be decoupled
> from the timeline server yet the Tez UI can still function properly.
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