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  1. Kudu
  2. KUDU-916

Test INSERT INTO TABLE SELECT FROM with failures

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • Private Beta
    • None
    • impala, test
    • None

    Description

      Since Impala queries aren't fault tolerant, doing things like INSERT INTO TABLE SELECT FROM to import data into Kudu and having a node failure could result in an unknown state (we don't what's inserted and what isn't).

      The easy fix is to the run the query again, but we don't know how it's going to handle duplicate row keys. Say you have 1B rows to insert and 500M are duplicates, will it spew 500M errors in the log?

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            mgrund Martin Grund
            jdcryans Jean-Daniel Cryans
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              Created:
              Updated:
              Resolved: