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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