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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4985) Refactor the coprocessor code & other definition classes into independent packages
Date Fri, 27 Jan 2017 16:53:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-4985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15843111#comment-15843111
] 

Sangjin Lee commented on YARN-4985:
-----------------------------------

At the end of the day, {{TimelineSchemaCreator}} is a standalone process. Either {{bin/hbase}}
or {{bin/hadoop}} would be able to launch the schema creator. It doesn't exercise any hbase
server code. In that sense, it is probably closer to the client module than the server module.

> Refactor the coprocessor code & other definition classes into independent packages
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-4985
>                 URL: https://issues.apache.org/jira/browse/YARN-4985
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Vrushali C
>            Assignee: Haibo Chen
>              Labels: YARN-5355
>
> As part of the coprocessor deployment, we have realized that it will be much cleaner
to have the coprocessor code sit in a package which does not depend on hadoop-yarn-server
classes. It only needs hbase and other util classes.
> These util classes and tag definition related classes can be refactored into their own
independent "definition" class package so that making changes to coprocessor code, upgrading
hbase, deploying hbase on a different hadoop version cluster etc all becomes operationally
much easier and less error prone to having different library jars etc.



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