liyunzhang_intel created HIVE-15259:
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Summary: The deserialization time of HOS20 is longer than what in
HOS16
Key: HIVE-15259
URL: https://issues.apache.org/jira/browse/HIVE-15259
Project: Hive
Issue Type: Improvement
Reporter: liyunzhang_intel
deploy Hive on Spark on spark 1.6 version and spark 2.0 version.
run query and in latest code(with spark2.0) the deserialization time of a task
is 4 sec while the deserialization time of spark1.6 is 1 sec. The detail is in
attached picture.
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