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https://issues.apache.org/jira/browse/HBASE-15507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15206450#comment-15206450
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Heng Chen commented on HBASE-15507:
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Sounds great.
In HBASE-11393, there will be a zk tracker for ReplicationPeerConfig, i think
it will satisfy your needs.
> Online modification of enabled ReplicationPeerConfig
> ----------------------------------------------------
>
> Key: HBASE-15507
> URL: https://issues.apache.org/jira/browse/HBASE-15507
> Project: HBase
> Issue Type: Improvement
> Components: Replication
> Affects Versions: 2.0.0, 1.2.0, 1.3.0
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
>
> It's currently possible to update the table CFs for a replication peer while
> it's running, but not the peer configuration or data maps introduced as part
> of custom replication endpoints in HBASE-11367.
> This means that if you have a custom endpoint that depends on some
> configuration parameter, you have to remove the peer and recreate it in order
> to change the param. In some use cases that's not possible without risking
> data loss.
> HBASE-11393, which will consolidate tableCFs in the same znode as the rest of
> ReplicationPeerConfig, may help here, but with or without it it still seems
> like there needs to be further work to add update config/data API support to
> ReplicationAdmin and a callback mechanism to notify the endpoints of config
> parameter changes.
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