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https://issues.apache.org/jira/browse/RATIS-1912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz-wo Sze resolved RATIS-1912.
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Fix Version/s: 3.0.0
Resolution: Fixed
The pull request is now merged. Thanks [~LiJinglun]!
> Fix infinity election when perform membership change.
> -----------------------------------------------------
>
> Key: RATIS-1912
> URL: https://issues.apache.org/jira/browse/RATIS-1912
> Project: Ratis
> Issue Type: Bug
> Components: server
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: 954_review.patch,
> merbership_new_peere_initial_group_problem.pdf
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Starting new peers with empty conf when membership changes can cause infinity
> election.
> Supposing we want to replace 2 peers from a 3 peers cluster. Normally we
> start the 2 new peers with empty conf. This can cause an infinity election
> and make the cluster unavailable forever.
>
> I will upload a patch to describe the case. And I will upload a document to
> describe the current dilemma when performing membership changes.
> TestMembership simulates the 'replacing 2 peers from a 3 peers cluster'
> issue. It ends with an infinity leader election.
> ([https://github.com/apache/ratis/pull/943/files])
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