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https://issues.apache.org/jira/browse/HIVE-2266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13504479#comment-13504479
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Harsh J commented on HIVE-2266:
-------------------------------

bq. Hadoop loads native compression libraries. I believe that they are platform 
dependent hence I do not assume that they always have same compression ratio. 
Please correct me if I am wrong here.

Compression is based on standard algorithms, which is platform independent. The 
native code is platform-dependent cause of the library references it has.
                
> Fix compression parameters
> --------------------------
>
>                 Key: HIVE-2266
>                 URL: https://issues.apache.org/jira/browse/HIVE-2266
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Vaibhav Aggarwal
>            Assignee: Vaibhav Aggarwal
>         Attachments: HIVE-2266-2.patch, HIVE-2266.patch
>
>
> There are a number of places where compression values are not set correctly 
> in FileSinkOperator. This results in uncompressed files.

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