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https://issues.apache.org/jira/browse/RATIS-631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17021870#comment-17021870
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Lokesh Jain commented on RATIS-631:
-----------------------------------
This will be stored in FollowerInfo of log appender. The plan is to compare
stateMachineAppliedIndex of peers and fail client requests if peers lag in
stateMachineAppliedIndex. This would be similar to RATIS-632.
> Propagate state machine's last applied index from follower to leader
> --------------------------------------------------------------------
>
> Key: RATIS-631
> URL: https://issues.apache.org/jira/browse/RATIS-631
> Project: Ratis
> Issue Type: Sub-task
> Components: server
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Priority: Major
> Labels: ozone
> Attachments: RATIS-631.001.patch
>
>
> State Machine's last applied index denotes the index till which the
> transactions have been successfully applied by the state machine. This index
> needs to be propagated from the follower to leader in order for leader to
> determine by how many transactions follower's state machine is lagging behind.
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