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https://issues.apache.org/jira/browse/HBASE-2838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892624#action_12892624
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HBase Review Board commented on HBASE-2838:
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Ship it!
+1 on commit (if tests pass)
- stack
> Replication metrics
> -------------------
>
> Key: HBASE-2838
> URL: https://issues.apache.org/jira/browse/HBASE-2838
> Project: HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.90.0
>
>
> Replication needs to publish metrics about its performance:
> - WALEdits read, filtered, sent to slave clusters, applied on slaves
> - size of batches sent/received
> - ms spent on reading, sending, applying edits
> This can be done using HadoopMetrics.
> Also we need to publish information not related to performance:
> - size of each HLog queues
> - age of the last replicated edit in each queue
> - time of last successful replication
> These informations can hardly be graphed, but we still need to represent them
> somehow. It has to be accessible by web UI, shell, and other tools in
> general. I don't feel strongly about creating a new public method on HRS's
> interface, and I'm not sure publishing those in ZooKeeper is a good idea
> either (why add another indirection?). Still wondering about a better
> solution.
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