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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11630) Use string intering with HiveConf to be more space efficient
Date Mon, 24 Aug 2015 22:47:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14710196#comment-14710196
] 

Thejas M Nair commented on HIVE-11630:
--------------------------------------

Other possible optimizations around the multiple copies of HiveConf (separate jiras might
be better for these )-
1. Create new HiveConf objects using copy constructor (if its not already done), to avoid
parsing the xml files every time
2. Create HiveConf that supports copy-on-write semantics, as hiveconf does not usually change
that frequently.


> Use string intering with HiveConf to be more space efficient 
> -------------------------------------------------------------
>
>                 Key: HIVE-11630
>                 URL: https://issues.apache.org/jira/browse/HIVE-11630
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.13.0, 0.14.0, 1.0.0, 1.2.0, 1.1.0, 1.1.1
>            Reporter: Vaibhav Gumashta
>            Assignee: Vaibhav Gumashta
>
> The giant enum HiveConf#ConfVars has a String field varname. Each new session on HiveServer2
creates a new conf object, which means wastefully creating the varname string for each enum
object. 



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