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  1. Apache Drill
  2. DRILL-6033

Using Drill Hive connection to query an Hbase table

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 1.11.0
    • Future
    • None
    • 3 instances of Cloudera 5.10v , each one have a drillbit installed. Each machine has 24 vCPU.

    Description

      Using Drill hive connection to query Hbase table.
      *Following query *
      select * from hive.mytable where key >= '0001:10:2017:0410:0000000000003157781'
      and key < '0001:10:2017:0410:0000000000003157782';

      What happened
      Failed with an error after timeout.
      It seems that the word 'key' didn't push down to hive from drill.

      What we also tried
      Same query in Drill over hbase takes less than a sec,
      In hue hive it takes few seconds

      Debug trail
      When you look in the sql profile of drill (using the web), you see a
      table full scan for millions of records, while actually it was supposed to return
      9 rows.

      Does Drill on top of hive is using the key to access only the relevant
      region of the table?

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            Unassigned Unassigned
            doribd Dor
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            Dates

              Created:
              Updated: