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From "Lars Hofhansl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5002) Control replication peer per column family.
Date Sat, 10 Dec 2011 01:04:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13166720#comment-13166720
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Lars Hofhansl commented on HBASE-5002:
--------------------------------------

This would useful for CopyTable... (1) enable replication for this table to the target cluster
(2) CopyTable to target cluster.
Would need online schema change to work to be useful I think.
                
> Control replication peer per column family.
> -------------------------------------------
>
>                 Key: HBASE-5002
>                 URL: https://issues.apache.org/jira/browse/HBASE-5002
>             Project: HBase
>          Issue Type: Sub-task
>          Components: replication
>            Reporter: Lars Hofhansl
>            Priority: Minor
>
> With HBASE-2196 in place. Would be nice if we could control per CF to which peer(s) it
is replicated.
> Could have a new option REPLICATION_PEERS, which holds a , separated list of replication
peers that this CF should be replicated to. If not given replicate to all slaves.
> This list would need to written to each log entry (could reuse WALEdit.scopes for this),
so we can decide in ReplicationSource who this entry should go to.
> Let's discuss...

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