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Posted to dev@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2018/09/22 00:43:00 UTC

[jira] [Created] (HIVE-20621) GetOperationStatus called in resultset.next causing incremental slowness

Prasanth Jayachandran created HIVE-20621:
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             Summary: GetOperationStatus called in resultset.next causing incremental slowness
                 Key: HIVE-20621
                 URL: https://issues.apache.org/jira/browse/HIVE-20621
             Project: Hive
          Issue Type: Bug
          Components: JDBC
    Affects Versions: 4.0.0, 3.2.0
         Environment: Fetching result set for a result cache hit query gets slower as more rows are fetched. For fetching 10 row result set it took about 900ms but fetching 200 row result set took 8 seconds. 

Reason for this slowness is GetOperationStatus is invoked inside resultset.next() and it happens for every row even after operation has completed. This is one RPC call per row fetched. 
            Reporter: Prasanth Jayachandran
            Assignee: Prasanth Jayachandran






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