[
https://issues.apache.org/jira/browse/RATIS-178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16301603#comment-16301603
]
Tsz Wo Nicholas Sze commented on RATIS-178:
-------------------------------------------
> The last server s2 may not able to join the group. s2 keeps starting a leader
> election but s0 and s1 keep withhold the vote.
This keeps repeating forever. The term of s2 keeps starting a new leader
election and increase its term. s2's term is increased to 39 in the log
message below.
{code}
2017-12-22 16:48:22,290 INFO impl.LeaderElection
(LeaderElection.java:askForVotes(127)) - s2: begin an election in Term 39
2017-12-22 16:48:22,292 DEBUG impl.RaftServerImpl
(RaftServerImpl.java:requestVote(612)) - s1: receive requestVote(s2,
group-C2DF75108086, 39, (t:0, i:0))
2017-12-22 16:48:22,292 DEBUG impl.RaftServerImpl
(RaftServerImpl.java:requestVote(612)) - s0: receive requestVote(s2,
group-C2DF75108086, 39, (t:0, i:0))
2017-12-22 16:48:22,292 INFO impl.RaftServerImpl
(RaftServerImpl.java:requestVote(622)) - s1 Withhold vote from server s2 with
term 39. This server:FOLLOWER group-C2DF75108086 s1:t2, leader=s0, voted=s0,
raftlog=[(t:2, i:0)], conf=[s0:0.0.0.0:55968, s1:0.0.0.0:55969,
s2:0.0.0.0:55970], old=null RUNNING, last rpc time from leader s0 is 19802ms
2017-12-22 16:48:22,292 INFO impl.RaftServerImpl
(RaftServerImpl.java:requestVote(622)) - s0 Withhold vote from server s2 with
term 39. This server: LEADER group-C2DF75108086 s0:t2, leader=s0, voted=s0,
raftlog=[(t:2, i:0)], conf=[s0:0.0.0.0:55968, s1:0.0.0.0:55969,
s2:0.0.0.0:55970], old=null RUNNING, last rpc time from leader s0 is -1
{code}
Note that I has changed the log messages in the current code for debugging.
> The third server cannot join the raft group
> -------------------------------------------
>
> Key: RATIS-178
> URL: https://issues.apache.org/jira/browse/RATIS-178
> Project: Ratis
> Issue Type: Bug
> Reporter: Tsz Wo Nicholas Sze
>
> When two servers starts in a 3-server group, they may elect a leader and then
> start the service. Then, start the third server. It somehow fails to join
> the group.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
