[jira] Commented: (HIVE-1430) serializing/deserializing the query plan is useless and expensive

["Joydeep Sen Sarma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12894253#action_12894253 ] 

Joydeep Sen Sarma commented on HIVE-1430:
-----------------------------------------

hey - so i am a little puzzled by this change:

- Zheng had added serialize/deserialize of the plan to make sure it got tested. wasn't a bad idea.
- i had added this option to the build file so that serialize would actually run during the tests (and not outside of tests)
- note that this property is not set outside of test environment. so serialize/deserialize of plan would not have been happening during regular use of hive

so not sure to me why we are making this change (are we concerned about memory/cpu usage during testing)? unless i am missing something major - this has no impact on memory/cpu of regular hive client.

> serializing/deserializing the query plan is useless and expensive
> -----------------------------------------------------------------
>
>                 Key: HIVE-1430
>                 URL: https://issues.apache.org/jira/browse/HIVE-1430
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Ning Zhang
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1430.patch
>
>
> We should turn it off by default

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