no out of memory errors for skewed join
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Key: HIVE-963
URL: https://issues.apache.org/jira/browse/HIVE-963
Project: Hadoop Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Namit Jain
Assignee: He Yongqiang
Currently, in case of skew, hive runs out of memory.
A simpler fix would be to use JDBM to store data and use that.
It can be configurable and JDBM should only be triggered if the number of
values for a given key exceed a given number.
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