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https://issues.apache.org/jira/browse/HBASE-13470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14505418#comment-14505418
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Sophia Feng commented on HBASE-13470:
-------------------------------------

[~mbertozzi]
Thanks for pointing those out. Exceptions before assertion definitely need to 
be addressed. I was fetching a new column descriptor but it was still bound to 
the old table descriptor. A brand new fetch is needed. Loop will do the actions 
too. Worker threads will add some concurrency to the DDLs I suppose. 

I'm making the changes and will put a newer patch to the reviewboard. Regards.

> High level Integration test for master DDL operations
> -----------------------------------------------------
>
>                 Key: HBASE-13470
>                 URL: https://issues.apache.org/jira/browse/HBASE-13470
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master
>            Reporter: Enis Soztutar
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-13470-v0.patch
>
>
> Our [~fengs] has an integration test which executes DDL operations with a new 
> monkey to kill the active master as a high level test for the proc v2 
> changes. 
> The test does random DDL operations from 20 client threads. The DDL 
> statements are create / delete / modify / enable / disable table and CF 
> operations. It runs HBCK to verify the end state. 
> The test can be run on a single master, or multi master setup. 



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