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https://issues.apache.org/jira/browse/RATIS-670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Supratim Deka updated RATIS-670:
--------------------------------
    Attachment: RATIS-670.001.patch

> Add a metric to track the lag between Log commit and Log apply index
> --------------------------------------------------------------------
>
>                 Key: RATIS-670
>                 URL: https://issues.apache.org/jira/browse/RATIS-670
>             Project: Ratis
>          Issue Type: Sub-task
>          Components: server
>            Reporter: Supratim Deka
>            Assignee: Supratim Deka
>            Priority: Major
>         Attachments: RATIS-670.000.patch, RATIS-670.001.patch
>
>
> The following metric will track by how many entries the log apply index is 
> lagging behind the log commit index for the local Ratis log. It should be 
> noted that log apply will always lag log commit.
> |logCommitToLogApplyDiff|The difference between lastApplied Index and log 
> Commit Index on each of Ratis server. This will give an indication of how the 
> stateMachine is behaving with respect to the incoming load.|



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