[jira] [Comment Edited] (HIVE-14453) refactor physical writing of ORC data and metadata to FS from the logical writers

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-14453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15675663#comment-15675663 ] 

Sergey Shelukhin edited comment on HIVE-14453 at 11/18/16 3:59 AM:
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[~prasanth_j] [~gopalv] can you please review or discuss? Needed for HIVE-15147. Anyway I think it's a good idea to separate layers in the writer


was (Author: sershe):
[~prasanth_j] [~gopalv] can you please review or discuss? Needed for HIVE-15147

> refactor physical writing of ORC data and metadata to FS from the logical writers
> ---------------------------------------------------------------------------------
>
>                 Key: HIVE-14453
>                 URL: https://issues.apache.org/jira/browse/HIVE-14453
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-14453.01.patch, HIVE-14453.02.patch, HIVE-14453.patch
>
>
> ORC data doesn't have to go directly into an HDFS stream via buffers, it can go somewhere else (e.g. a write-thru cache, or an addressable system that doesn't require the stream blocks to be held in memory before writing them all together).
> To that effect, it would be nice to abstract the data block/metadata structure creating from the physical file concerns.



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