[jira] [Created] (HBASE-16448) Custom metrics for custom replication endpoints

["Geoffrey Jacoby (JIRA)" <ji...@apache.org>]

Geoffrey Jacoby created HBASE-16448:
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             Summary: Custom metrics for custom replication endpoints
                 Key: HBASE-16448
                 URL: https://issues.apache.org/jira/browse/HBASE-16448
             Project: HBase
          Issue Type: Improvement
          Components: Replication
    Affects Versions: 0.98.21, 1.2.2, 2.0.0
            Reporter: Geoffrey Jacoby
            Assignee: Geoffrey Jacoby


ReplicationEndpoints contain a MetricsSource class that can update a fixed set of key replication metrics. It does not, however, allow a developer implementing a custom ReplicationEndpoint to create/update custom metrics unique to the new endpoint's use case. 

As it turns out, MetricsSource wraps a class, which in turn wraps a class, that implements the Hadoop BaseSource interface, which does allow for custom metrics. Simply having the two wrappers implement BaseSource as well with pass-through methods should be straightforward, and would allow replication endpoints to use these generic metric methods.



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