<aside> 💡 이미 구축된 cluster에서 master1,2,3을 다시 킬 때의 로그

</aside>

2.etcd 멤버 확인 및 피어링 연결

master1에서의 peering 연결

"msg":"newRaft master1 [peers: [master1,master2,master3]"
"msg":"starting remote peer","remote-peer-id"
"msg":"started HTTP pipelining with remote peer"
"msg":"started stream writer with remote peer"master1-master2 연결
"msg":"started stream writer with remote peer"master1-master3 연결
"msg":"started stream reader with remote peer"master1-master2 연결
"msg":"started stream reader with remote peer"master1-master3 연결
"msg":"started remote peer"
"msg":"peer became active"
###노드간 peering 성공!###
"msg":"established TCP streaming connection with remote peer"

3.master 1 에서 자신 term을 확인 및 다른 노드 들과 확인


# master 1-> master 2/3에게 Prevote 요청
"master1[logterm: 39, index: 48507, vote: master3]sent MsgVote request to master2,3 at term 39"

#master3 의 Term이 더 높은 것을 확인
"master1 [term: 39] received a MsgVote message with higher term from master3 [term: 40]"

4. master3가 candidate가 된 후 투표 시작

"msg":""master3" became candidate at term 401"
"msg":""master3" [logterm: 40, index: 61706] sent MsgVote request to "master1,2" at term 41"

5.master3가 투표 내용 확인 및 리더 선출

"msg":""master3" has received 2 MsgVoteResp votes and 0 vote rejections"
"msg":""master3" became leader at term 41"

6. master3가 죽었을 때 master2의 heartbeat timeout

"dropped internal Raft message since sending buffer is full (overloaded network)","message-type":"MsgHeartbeat",
"dropped internal Raft message since sending buffer is full (overloaded network)","message-type":"MsgHeartbeat",
"dropped internal Raft message since sending buffer is full (overloaded network)","message-type":"MsgHeartbeat",
......
"msg":"failed to get version"
"msg":"failed to reach the peer URL"
"msg":"lost TCP streaming connection with remote peer"
"msg":"raft.node:"master2" lost leader "master3" at term 41

7. master3가 죽었을 때 master2의 투표 개시

"msg":""master2" [term 41] received MsgTimeoutNow from "master3" and starts an election to get leadership."

"msg":""master2" is starting a new election at term 41"
"msg":""master2" became pre-candidate at term 41"
"msg":""master2" received MsgPreVoteResp from "master1,2" at term 41"

"msg":""master2" became candidate at term 42"
"msg":""master2" [logterm: 42, index: 49721] sent MsgVote request to "master2" at term 42"
"msg":""master2" [logterm: 42, index: 49721] sent MsgVote request to "master1" at term 42"
"msg":""master2" received MsgVoteResp from "master1"at term 42"
"msg":""master2" has received 2 MsgPreVoteResp votes and 0 vote rejections"}

8.투표 확인 및 master2 리더 선출 및 peering check

"msg":""master2" became leader at term 42"
"msg":"raft.node: "master2" elected leader "master2" at term 42"

9. master3가 다시 살아날 때