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https://issues.apache.org/jira/browse/YARN-9303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prabhu Joseph updated YARN-9303:
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Description:
application, domain -> uses clusterId splits
entity , subapplication-> uses username splits
flowactivity, flowrun -> no splits (starts with clusterId)
app_flow -> make no splits
was:
Currently Timeline Service Storage tables uses splits based on username.
ApplicationTable rowkey starts with ClusterId, AppToFlowTable rowkey starts
with AppId won;t work well with username splits. The Hbase write will hotspot
to one RegionServer. Need to optimize the pre split keys for each tables based
on the RowKey.
http://archive.cloudera.com/cdh5/cdh/5/hbase-0.98.6-cdh5.3.8/book/rowkey.design.html
> Username splits won't help timelineservice.app_flow table
> ---------------------------------------------------------
>
> Key: YARN-9303
> URL: https://issues.apache.org/jira/browse/YARN-9303
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.1.2
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
>
> application, domain -> uses clusterId splits
> entity , subapplication-> uses username splits
> flowactivity, flowrun -> no splits (starts with clusterId)
> app_flow -> make no splits
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