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From Darren Hoo <darren....@gmail.com>
Subject Unregister query takes a lot of time
Date Wed, 25 May 2016 07:26:53 GMT
Doing a simple primary key lookup, Unregister query takes 5 seconds,  it
seems too long to me.
what is it doing?


Operator       #Hosts   Avg Time  Max Time  #Rows  Est. #Rows   Peak Mem
 Est. Peak Mem  Detail
-------------------------------------------------------------------------------------------------------
01:EXCHANGE         1   19.852us  19.852us      1           1          0
     -1.00 B  UNPARTITIONED
00:SCAN KUDU       25  259.654ms   5s220ms      1           1  104.00 KB
           0
    Planner Timeline: 35.247ms
       - Analysis finished: 601.876us (601.876us)
       - Equivalence classes computed: 789.600us (187.724us)
       - Single node plan created: 34.156ms (33.367ms)
       - Runtime filters computed: 34.167ms (11.068us)
       - Distributed plan created: 34.697ms (529.183us)
       - Planning finished: 35.247ms (550.736us)
    Query Timeline: 5s286ms
       - Start execution: 236.944us (236.944us)
       - Planning finished: 37.069ms (36.833ms)
       - Ready to start 25 remote fragments: 43.452ms (6.382ms)
       - All 25 remote fragments started: 48.160ms (4.707ms)
       - Rows available: 56.501ms (8.340ms)
       - First row fetched: 151.018ms (94.517ms)
       - Unregister query: 5s275ms (5s124ms)
  ImpalaServer:


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