[jira] [Created] (HIVE-7397) Set the defaults for fetch task conversion to 1Gb

["Gopal V (JIRA)" <ji...@apache.org>]

Gopal V created HIVE-7397:
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             Summary: Set the defaults for fetch task conversion to 1Gb
                 Key: HIVE-7397
                 URL: https://issues.apache.org/jira/browse/HIVE-7397
             Project: Hive
          Issue Type: Bug
    Affects Versions: 0.13.1, 0.14.0
            Reporter: Gopal V
            Assignee: Gopal V
             Fix For: 0.14.0


Currently, modifying the value of hive.fetch.task.conversion to "more" results in a dangerous setting where small scale queries function, but large scale queries crash.

This occurs because the default threshold of -1 means apply this optimization for a petabyte table.

I am testing a variety of queries with the setting "more" (to make it the default option as suggested by HIVE-887) change the default threshold for this feature to a reasonable 1Gb.



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