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https://issues.apache.org/jira/browse/HBASE-12412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14323660#comment-14323660
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Jingcheng Du commented on HBASE-12412:
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Thanks Misty. I am +1 with the latest patch.

> update the ref guide(currently Example 10.2) to show "update an existing CF" 
> with the new API modifyFamily in master
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-12412
>                 URL: https://issues.apache.org/jira/browse/HBASE-12412
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Jingcheng Du
>            Assignee: Misty Stanley-Jones
>            Priority: Minor
>         Attachments: HBASE-12412-v1.patch, HBASE-12412-v2.patch, 
> HBASE-12412-v3.patch, HBASE-12412.patch
>
>
> In the new implementation of HTableDescriptor, updating an existing CF 
> doesn't use the addFamily any more(An IllegalArgumentException is thrown in 
> such a case.), the new API modifyFamily is used instead.
> We need to update the ref guide (currently Example 10.2) to show "update an 
> existing CF" with the new API modifyFamily in master.



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