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From "Joydeep Sen Sarma (JIRA)" <>
Subject [jira] Commented: (HIVE-1430) serializing/deserializing the query plan is useless and expensive
Date Sat, 31 Jul 2010 06:43:16 GMT


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
- 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:
>             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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