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https://issues.apache.org/jira/browse/HBASE-8104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608509#comment-13608509
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Jieshan Bean commented on HBASE-8104:
-------------------------------------

I think so, this is the only way we can do that. But I don't think we really 
need that.
                
> HBase consistency and availability after replication
> ----------------------------------------------------
>
>                 Key: HBASE-8104
>                 URL: https://issues.apache.org/jira/browse/HBASE-8104
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 0.94.3
>            Reporter: Brian Fu
>            Priority: Critical
>   Original Estimate: 336h
>  Remaining Estimate: 336h
>
> HBase consistency and availability after replication
> Scene as follows:
> 1. There are two HBase clusters are the Master  clusters and Slave Clusters.  
> two clusters replication function is open.
> 2. if master cluster have problems, so  all write and read request switching 
> to the slave cluster.
> 3. After a period of time ,we need to switch back to the Master cluster, 
> there will be a part of the data is inconsistent, lead to  this part of the 
> data is not available.
> This feature is particularly important for providing online services HBase 
> cluster.
> So, I want through a write-back program to keep the data consistency, then to 
> improve HBase availability. 
> we will provide a patch for this function.

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