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https://issues.apache.org/jira/browse/HBASE-1733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell resolved HBASE-1733.
-----------------------------------
Resolution: Fixed
Addressed closely enough by many other issues
> Pluggable replication framework
> -------------------------------
>
> Key: HBASE-1733
> URL: https://issues.apache.org/jira/browse/HBASE-1733
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Reporter: Andrew Purtell
>
> Put minimal support for replication into core and plan for the rest in
> contrib/. Support in core can look like:
> 1. Scope tags in WAL and HCD (HBASE-1728, HBASE-1834). Generic integer,
> sufficient for any number of schemes.
> and handled in this issue:
> 2. Method to register remote watchers on WAL rolls, via watcher in ZK. So
> this is basically distributed upcall to the listeners on roll.
> 3. Mechanism to prevent HLog from cleaning rolled logs until all listeners
> have finished with it, also implemented with ZK. Could only delete when no
> more ephemeral subnodes on the log node, where region server would hold an
> entry also and delete its entry when edit content has made it out to the
> storefiles.
>
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