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https://issues.apache.org/jira/browse/HBASE-16307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zheng Hu resolved HBASE-16307.
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Resolution: Won't Fix
The storage layer won't maintain any metric now , metrics of replication are
maintained by upper-layer, such as ReplicationSource.
> Metrics for overall replication backlog length
> ----------------------------------------------
>
> Key: HBASE-16307
> URL: https://issues.apache.org/jira/browse/HBASE-16307
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Reporter: Matt Mullins
> Assignee: Zheng Hu
> Priority: Minor
>
> With Zookeeper storing replication information, we have been able to use the
> znode count as a stand-in for the volume of replication that has yet to
> occur. It would be nice to (a) maintain a similar metric with the new
> replication implementation, and possibly (b) improve upon that metric by
> making it an intentional indicator of replication.
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