[replication] Add a delayed option
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                 Key: HBASE-4500
                 URL: https://issues.apache.org/jira/browse/HBASE-4500
             Project: HBase
          Issue Type: New Feature
    Affects Versions: 0.90.4
            Reporter: Jean-Daniel Cryans
             Fix For: 0.94.0


A typical DR solution with databases is to have one slave that receives data a 
few hours late to guard against destructive operations. On top of my head one 
way to implement this would be tail the log, see how current the edit is, sleep 
if needed, replicate, repeat.

The harder part will be adding a configuration to the stream.

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