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https://issues.apache.org/jira/browse/RATIS-2008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz-wo Sze updated RATIS-2008:
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Component/s: election
> Follower should recognize candidate if the candidate is the same peer as the
> current recognized leader
> ------------------------------------------------------------------------------------------------------
>
> Key: RATIS-2008
> URL: https://issues.apache.org/jira/browse/RATIS-2008
> Project: Ratis
> Issue Type: Improvement
> Components: election
> Reporter: Ivan Andika
> Assignee: Ivan Andika
> Priority: Minor
>
> During pre-vote, some follower reject the PRE_VOTE request from a candidate
> although the candidate has the same peer ID as the current leader.
> {code:java}
> 2024-01-18 13:44:50,123 [grpc-default-executor-100] INFO
> org.apache.ratis.server.impl.VoteContext:
> e46cc30b-13ca-4778-b856-e84b0677493d@group-059247EC8137-FOLLOWER: reject
> PRE_VOTE from c7e3fa47-df62-4883-8d6e-50c3b6a9b94c: this server is a follower
> and still has a valid leader c7e3fa47-df62-4883-8d6e-50c3b6a9b94c
> {code}
> It might be a good idea to addd another check so that if the candidate has
> the same peer ID as the follower's current recognized leader, we approve the
> PRE_VOTE request.
> Note: The optimization might be marginal since recognized leader will expire
> after min.rpc.timeout (150ms) anyway.
>
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