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Posted to yarn-dev@hadoop.apache.org by "Prabhu Joseph (JIRA)" <ji...@apache.org> on 2019/02/14 08:19:00 UTC

[jira] [Created] (YARN-9303) Optimizing Pre Split keys for Hbase Timeline Service Storage tables

Prabhu Joseph created YARN-9303:
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             Summary: Optimizing Pre Split keys for Hbase Timeline Service Storage tables
                 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


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.



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