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https://issues.apache.org/jira/browse/MAPREDUCE-7062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Charan Hebri reassigned MAPREDUCE-7062:
---------------------------------------
Assignee: Charan Hebri
> MR job tags not compatible with YARN ATSv2 flow names, flow run ids and flow
> versions
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-7062
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7062
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Charan Hebri
> Assignee: Charan Hebri
> Priority: Major
>
> When applications are submitted to YARN, tags are generated in the format
>
> TIMELINE_FLOW_NAME_TAG:\{flow_name},TIMELINE_FLOW_VERSION_TAG:\{flow_version},TIMELINE_FLOW_RUN_ID_TAG:\{flow_run_id}
> However, MR applications don't follow this format and the tags submitted via
> the property mapreduce.job.tags are of the format,
> {flow_name} ,\{flow_version},\{flow_run_id}
> Due to this, YARN falls back to default values for flow name, flow version
> and flow run id which in turn are used in ATSv2.
> There are 2 approaches that could be taken to make MR tags compatible with
> ATSv2,
> Fix in the MR code
> -------------------------
> Prefix any tags specified with the ones needed by the YARN Timeline Service
> v2. But MR is legacy code and hence these changes could affect how users are
> using these tags.
> Add a note in mapred-default.xml
> --------------------------------------------
> Add notes in the property name, mapreduce.job.tags mentioning that for
> purposes of ATSv2, prefixes need to be added to the tag names.
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