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https://issues.apache.org/jira/browse/RATIS-993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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runzhiwang updated RATIS-993:
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Description:
For example, leader is s1, and s2, s3 are the followers. If there is something
wrong with s3's network, and s3 lose connection with leader in a short time
interval, s3 will trigger election. when s3's network recovery, leader will
step down which is unnecessary. So I want to add pre vote before real vote.
1. if s3 want to request vote, it first send a pre vote request.
2. when s1 and s2 receive pre vote request of s3, they check their
electionTimeout to decide whether should trigger leader election.
3. If s1 and s2 refuse to trigger a new leader election, s3 still keep as
follower.
was:
For example, leader is s1, and s2, s3 are the followers. If there is something
wrong with s3's network, and s3 lose connection with the leader in a short time
interval, s3 will trigger election. when s3's network recovery, leader will
step down which is unnecessary. So I want to add pre vote before real vote.
1. if s3 want to request vote, it first send a pre vote request.
2. when s1 and s2 receive pre vote request of s3, they check their
electionTimeout to decide whether should trigger leader election.
3. If s1 and s2 refuse to trigger a new leader election, s3 still keep as
follower.
> Pre vote before request vote
> ----------------------------
>
> Key: RATIS-993
> URL: https://issues.apache.org/jira/browse/RATIS-993
> Project: Ratis
> Issue Type: New Feature
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
>
> For example, leader is s1, and s2, s3 are the followers. If there is
> something wrong with s3's network, and s3 lose connection with leader in a
> short time interval, s3 will trigger election. when s3's network recovery,
> leader will step down which is unnecessary. So I want to add pre vote before
> real vote.
> 1. if s3 want to request vote, it first send a pre vote request.
> 2. when s1 and s2 receive pre vote request of s3, they check their
> electionTimeout to decide whether should trigger leader election.
> 3. If s1 and s2 refuse to trigger a new leader election, s3 still keep as
> follower.
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