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Posted to issues@ratis.apache.org by "Kaijie Chen (Jira)" <ji...@apache.org> on 2023/03/20 09:19:00 UTC

[jira] [Resolved] (RATIS-1818) Make StartLeaderElection idempotent

     [ https://issues.apache.org/jira/browse/RATIS-1818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kaijie Chen resolved RATIS-1818.
--------------------------------
    Resolution: Not A Problem

> Make StartLeaderElection idempotent
> -----------------------------------
>
>                 Key: RATIS-1818
>                 URL: https://issues.apache.org/jira/browse/RATIS-1818
>             Project: Ratis
>          Issue Type: Sub-task
>            Reporter: Kaijie Chen
>            Assignee: Kaijie Chen
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, it is possible for a leader at {{term x}} to send {{StartLeaderElection}} twice to a follower, making the follower become {{term x + 2}}.
> We can make StartLeaderElection idempotent by including a {{term}} in {{StartLeaderElectionRequest}}. And the receiver should ignore the {{StartLeaderElectionRequest}} from lower term.
> (Actually every request proto should include a senders term)



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