[RATIS-1273] Fix split brain by leader lease

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Assignee: runzhiwang
• Reporter: runzhiwang
• Created: 28/Dec/20 11:48
• Updated: 04/Aug/23 18:22
• Resolved: 04/Aug/23 18:22

Description

For example, there are 3 servers: server1, server2, server3, and server1 is leader. When split-brain happens, server2 was elected as new leader, but server1 still think it's leader, when client read from server1, if server2 has processed write request, client will read old data from server1.

Issue Links

• duplicates: RATIS-1864 Support leader lease
• relates to: RATIS-993 Support pre vote
• links to: GitHub Pull Request #383
• links to: GitHub Pull Request #383