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From "Vrushali C (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-6094) Update the coprocessor to be a dynamically loaded one
Date Wed, 18 Jan 2017 22:54:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-6094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15828927#comment-15828927
] 

Vrushali C edited comment on YARN-6094 at 1/18/17 10:54 PM:
------------------------------------------------------------

Thanks [~sjlee0] for the review and discussion. I thought over this a bit and looked into
the hbase code as well and it appears that if we pass in null as the hdfs location, then it
will load the table coprocessor from classpath. So it became much easier to do this for the
unit tests.

Also, I moved the test files back into the earlier places since it makes things easier to
review and follow. 

Uploading patch 003. 



was (Author: vrushalic):

Thanks [~sjlee0] for the review and discussion. I thought over this a bit and looked into
the hbase code as well and it appears that if we pass in null as the hdfs location, then it
will load the table coprocessor from classpath. So it became much easier to do this for the
unit tests.

Also, I moved the test files back into the earlier places since it makes things easier to
review and follow. 

Uploading patch 004. 


> Update the coprocessor to be a dynamically loaded one
> -----------------------------------------------------
>
>                 Key: YARN-6094
>                 URL: https://issues.apache.org/jira/browse/YARN-6094
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Vrushali C
>            Assignee: Vrushali C
>              Labels: yarn-5355-merge-blocker
>         Attachments: YARN-6094.001.patch, YARN-6094-YARN-5355.001.patch, YARN-6094-YARN-5355.002.patch,
YARN-6094-YARN-5355.003.patch
>
>
> The timeline service v2 code base on yarn now uses hbase 1.2.4 after YARN-5976. 
> With this version of hbase, system classes (starting with org.apache.hadoop) can be loaded
as table level coprocessors. Hence we should update the timeline service coprocessor to be
a dynamically loaded one instead of static loading. 
> This involves code changes as well as documentation updates for deployment.



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