[jira] [Commented] (HIVE-12513) Change LlapTokenIdentifier to use protbuf

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

    [ https://issues.apache.org/jira/browse/HIVE-12513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025716#comment-15025716 ] 

Sergey Shelukhin commented on HIVE-12513:
-----------------------------------------

Token is part of Hadoop security and is Writable. What we have is token identifier; that also has to be writable so that Hadoop security could write it, for all the basic parts of TokenIdentifier we inherit from delegation token indentifier.. We can use protobuf for our stuff and just write bytes into writable  (currently we add nothing to the basic token though), but basic token and superclass identifier have to stay writable.

> Change LlapTokenIdentifier to use protbuf
> -----------------------------------------
>
>                 Key: HIVE-12513
>                 URL: https://issues.apache.org/jira/browse/HIVE-12513
>             Project: Hive
>          Issue Type: Improvement
>          Components: llap
>            Reporter: Siddharth Seth
>
> Follow up to HIVE-12341. Currently writable, which can get in the way of upgrades.



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