ZAB协议

投票信息LeaderId:4zxid:[0|0]Status:Looking

zxid [0|0]

投票信息LeaderId:2zxid:[0|0]Status:Looking

zxid [0|1]

Prepare

Server-3Follower

事务01-Prepare

事务01-Commit事务01-Prepare

Server-1Looking

Server-2Looking

3

Server-1Follower

投票信息LeaderId:1zxid:[0|1]Status:Looking

Server-0Leader

投票信息LeaderId:2zxid:[0|1]Status:Looking

Req

Server-4Follower

zxid [1|0]

投票信息LeaderId:0zxid:[0|1]Status:Leading

b.2

投票信息LeaderId:1zxid:[0|0]Status:Looking

ACK

Server-3Looking

1

事务01-Commited事务01-Prepare

Server-2Follower

OR

投票信息LeaderId:3zxid:[0|0]Status:Looking

丢弃事务01

2

Server-0崩溃

Server-4Leader

投票信息LeaderId:0zxid:[0|1]Status:Following

Server-4Looking

Server-2Leader

Server-0Looking