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https://issues.apache.org/jira/browse/HBASE-2197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832087#action_12832087
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Andrew Purtell commented on HBASE-2197:
---------------------------------------

bq. Currently random reads have that problem where they can return older 
versions of the data if a timestamp in the memstore is older than data in the 
store files.

That's a bug. Let's file a jira for it and fix it. 

> Start replication from a point in time
> --------------------------------------
>
>                 Key: HBASE-2197
>                 URL: https://issues.apache.org/jira/browse/HBASE-2197
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Jean-Daniel Cryans
>             Fix For: 0.21.0
>
>
> One way to set up a cluster for replication is to distcp all files then start 
> the replication. We need a way to make sure we don't miss any edits by being 
> able to start a process that reads old log files from a defined point in time 
> and send them to a specific slave cluster and then catch up with normal 
> replication.

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