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From "Mostafa Mokhtar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMPALA-5142) When runtime filters are received before all fragments start query timeline reports negative values
Date Thu, 30 Mar 2017 17:14:42 GMT
Mostafa Mokhtar created IMPALA-5142:
---------------------------------------

             Summary: When runtime filters are received before all fragments start query timeline
reports negative values
                 Key: IMPALA-5142
                 URL: https://issues.apache.org/jira/browse/IMPALA-5142
             Project: IMPALA
          Issue Type: Bug
          Components: Distributed Exec
    Affects Versions: Impala 2.7.0
            Reporter: Mostafa Mokhtar
            Priority: Trivial


When the event for first dynamic filter is received ahead of all fragments started the query
timeline prints a negative time value for "fragment instances started"

{code}
       - Planning finished: 790.555ms (32.872ms)
    Query Timeline: 2m40s
       - Query submitted: 7.295ms (7.295ms)
       - Planning finished: 1s397ms (1s390ms)
       - Submit for admission: 3s059ms (1s661ms)
       - Completed admission: 3s087ms (27.810ms)
       - Ready to start 90 fragment instances: 3s527ms (440.540ms)
       - First dynamic filter received: 7s851ms (4s323ms)
       - All 90 fragment instances started: 7s851ms (-88037.000ns)
       - Rows available: 2m28s (2m20s)
       - First row fetched: 2m28s (51.725ms)
       - Unregister query: 2m30s (1s459ms)
     - ComputeScanRangeAssignmentTimer: 770.794ms
{code}


{code}
    Query Timeline: 17s011ms
       - Query submitted: 174.449us (174.449us)
       - Planning finished: 209.847ms (209.672ms)
       - Submit for admission: 255.819ms (45.971ms)
       - Completed admission: 256.212ms (393.074us)
       - Ready to start 90 fragment instances: 283.582ms (27.370ms)
       - All 90 fragment instances started: 627.013ms (343.430ms)
       - First dynamic filter received: 954.223ms (327.209ms)
       - Rows available: 16s393ms (15s439ms)
       - First row fetched: 16s705ms (311.586ms)
       - Unregister query: 16s871ms (165.908ms)
     - ComputeScanRangeAssignmentTimer: 13.125ms
{code}




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