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https://issues.apache.org/jira/browse/HIVE-5263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13764463#comment-13764463
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Ashutosh Chauhan commented on HIVE-5263:
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I understand that current patch is WIP, but we need to make sure qbJoinTree and
opParseCtx (in MapWork) are not serialized while we serialize the plan. Those
are pretty bulky objects which are not required at execution time. I think its
possible to do this with Kryo.
> Query Plan cloning time could be improved by using Kryo
> --------------------------------------------------------
>
> Key: HIVE-5263
> URL: https://issues.apache.org/jira/browse/HIVE-5263
> Project: Hive
> Issue Type: Improvement
> Reporter: Brock Noland
> Assignee: Brock Noland
> Attachments: HIVE-5263.patch, HIVE-5263.patch
>
>
> In HIVE-1511 we implemented Kryo for serialization but did not use for query
> plan cloning. As was discussed there it's a possible speed improvement. In
> addition the current XML serialization method does not work with Java 7 so
> using Kryo is a workaround for this issue.
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