配置三个节点，能选举出leader，但一直有警告，第三个节点有异常，每次重启都是这样。

[attack-key]

[attack-key]

这是第三个服务器的日志，状态好像也有点异常一直在显示LOOKING这种状态，leader其实已经选举出来了

[eagle518]

第二图stack trace提供下完整信息。

[attack-key]

2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100271 ] - [ WARN ] Exception when following the leader Throwable:
file: ../src/ESocket.cpp
line: 824
errno: 11
message: read timed out

stack trace:

2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100271 ] - [ INFO ] shutdown called (shutdown Follower)
2021-06-07 01:08:58 [ :FollowerZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:100271 ] - [ INFO ] Shutting down
2021-06-07 01:08:58 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:100271 ] - [ DEBUG ] ZooKeeper server is not running, so not proceeding to shutdown!
2021-06-07 01:08:58 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ INFO ] LOOKING
2021-06-07 01:08:58 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Initializing leader election protocol...
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Updating proposal: 3 (newleader), 0x0 (newzxid), 3 (oldleader), 0x0 (oldzxid)
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ INFO ] New election. My id = 3, proposed zxid=0x0
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 1 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 2 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:08:58 [ :QuorumCnxManager:WorkerSender[myid=3]:100272 ] - [ DEBUG ] There is a connection already for server 1
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 3 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:08:58 [ :QuorumCnxManager:WorkerSender[myid=3]:100272 ] - [ DEBUG ] There is a connection already for server 2
2021-06-07 01:08:58 [ :ZooKeeperThread:WorkerReceiver[myid=3]:100272 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:08:58 [ :FastLeaderElection:WorkerReceiver[myid=3]:100272 ] - [ INFO ] Notification: 1 (message format version), 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), LOOKING (n.state), 3 (n.sid), 0x4 (n.peerEpoch) LOOKING (my state)
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] id: 3, proposed id: 3, zxid: 0x0, proposed zxid: 0x0
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100272 ] - [ DEBUG ] Adding vote: from=3, proposed leader=3, proposed zxid=0x0, proposed election epoch=0x2
2021-06-07 01:08:58 [ :ZooKeeperThread:WorkerReceiver[myid=3]:100273 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:08:58 [ :FastLeaderElection:WorkerReceiver[myid=3]:100273 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), LEADING (n.state), 2 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:08:58 [ :ZooKeeperThread:WorkerReceiver[myid=3]:100279 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:08:58 [ :FastLeaderElection:WorkerReceiver[myid=3]:100279 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), FOLLOWING (n.state), 1 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ DEBUG ] I'm a participant: 3
2021-06-07 01:08:58 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ DEBUG ] About to leave FLE instance: leader=2, zxid=0x9b00000004, my id=3, my state=FOLLOWING
2021-06-07 01:08:58 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ INFO ] FOLLOWING
2021-06-07 01:08:58 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ INFO ] Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir true snapdir true
2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ INFO ] FOLLOWING - LEADER ELECTION TOOK - 7
2021-06-07 01:08:58 [ :QuorumServer:QuorumPeer[myid=3]null/0.0.0.0:2181:100279 ] - [ INFO ] Resolved hostname: test2 to address: test2/172.20.1.98
2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100283 ] - [ TRACE ] i UNKNOWN17 ae00000000
2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100285 ] - [ TRACE ] i UNKNOWN15 ae00000000
2021-06-07 01:08:58 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:100285 ] - [ INFO ] Getting a snapshot from leader 0xae00000000
2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ WARN ] Exception when following the leader Throwable:
file: ../src/ESocket.cpp
line: 824
errno: 11
message: read timed out

stack trace:

2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ INFO ] shutdown called (shutdown Follower)
2021-06-07 01:09:18 [ :FollowerZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ INFO ] Shutting down
2021-06-07 01:09:18 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] ZooKeeper server is not running, so not proceeding to shutdown!
2021-06-07 01:09:18 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ INFO ] LOOKING
2021-06-07 01:09:18 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] Initializing leader election protocol...
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] Updating proposal: 3 (newleader), 0x0 (newzxid), 3 (oldleader), 0x0 (oldzxid)
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ INFO ] New election. My id = 3, proposed zxid=0x0
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 1 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 2 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120285 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 3 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:18 [ :QuorumCnxManager:WorkerSender[myid=3]:120285 ] - [ DEBUG ] There is a connection already for server 1
2021-06-07 01:09:18 [ :QuorumCnxManager:WorkerSender[myid=3]:120285 ] - [ DEBUG ] There is a connection already for server 2
2021-06-07 01:09:18 [ :ZooKeeperThread:WorkerReceiver[myid=3]:120286 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:18 [ :FastLeaderElection:WorkerReceiver[myid=3]:120286 ] - [ INFO ] Notification: 1 (message format version), 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), LOOKING (n.state), 3 (n.sid), 0x4 (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120286 ] - [ DEBUG ] id: 3, proposed id: 3, zxid: 0x0, proposed zxid: 0x0
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120286 ] - [ DEBUG ] Adding vote: from=3, proposed leader=3, proposed zxid=0x0, proposed election epoch=0x2
2021-06-07 01:09:18 [ :ZooKeeperThread:WorkerReceiver[myid=3]:120289 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:18 [ :FastLeaderElection:WorkerReceiver[myid=3]:120289 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), LEADING (n.state), 2 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:18 [ :ZooKeeperThread:WorkerReceiver[myid=3]:120289 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:18 [ :FastLeaderElection:WorkerReceiver[myid=3]:120289 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), FOLLOWING (n.state), 1 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ DEBUG ] I'm a participant: 3
2021-06-07 01:09:18 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ DEBUG ] About to leave FLE instance: leader=2, zxid=0x9b00000004, my id=3, my state=FOLLOWING
2021-06-07 01:09:18 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ INFO ] FOLLOWING
2021-06-07 01:09:18 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ INFO ] Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir true snapdir true
2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ INFO ] FOLLOWING - LEADER ELECTION TOOK - 4
2021-06-07 01:09:18 [ :QuorumServer:QuorumPeer[myid=3]null/0.0.0.0:2181:120289 ] - [ INFO ] Resolved hostname: test2 to address: test2/172.20.1.98
2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120291 ] - [ TRACE ] i UNKNOWN17 ae00000000
2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120292 ] - [ TRACE ] i UNKNOWN15 ae00000000
2021-06-07 01:09:18 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:120292 ] - [ INFO ] Getting a snapshot from leader 0xae00000000
2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ WARN ] Exception when following the leader Throwable:
file: ../src/ESocket.cpp
line: 824
errno: 11
message: read timed out

stack trace:

2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ INFO ] shutdown called (shutdown Follower)
2021-06-07 01:09:38 [ :FollowerZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ INFO ] Shutting down
2021-06-07 01:09:38 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] ZooKeeper server is not running, so not proceeding to shutdown!
2021-06-07 01:09:38 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ INFO ] LOOKING
2021-06-07 01:09:38 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Initializing leader election protocol...
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Updating proposal: 3 (newleader), 0x0 (newzxid), 3 (oldleader), 0x0 (oldzxid)
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ INFO ] New election. My id = 3, proposed zxid=0x0
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 1 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 2 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:38 [ :QuorumCnxManager:WorkerSender[myid=3]:140294 ] - [ DEBUG ] There is a connection already for server 1
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Sending Notification: 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), 3 (recipient), 3 (myid), 0x4 (n.peerEpoch)
2021-06-07 01:09:38 [ :QuorumCnxManager:WorkerSender[myid=3]:140294 ] - [ DEBUG ] There is a connection already for server 2
2021-06-07 01:09:38 [ :ZooKeeperThread:WorkerReceiver[myid=3]:140294 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:38 [ :FastLeaderElection:WorkerReceiver[myid=3]:140294 ] - [ INFO ] Notification: 1 (message format version), 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), LOOKING (n.state), 3 (n.sid), 0x4 (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] id: 3, proposed id: 3, zxid: 0x0, proposed zxid: 0x0
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140294 ] - [ DEBUG ] Adding vote: from=3, proposed leader=3, proposed zxid=0x0, proposed election epoch=0x2
2021-06-07 01:09:38 [ :ZooKeeperThread:WorkerReceiver[myid=3]:140295 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:38 [ :FastLeaderElection:WorkerReceiver[myid=3]:140295 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), LEADING (n.state), 2 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:38 [ :ZooKeeperThread:WorkerReceiver[myid=3]:140296 ] - [ DEBUG ] Receive new notification message. My id = 3
2021-06-07 01:09:38 [ :FastLeaderElection:WorkerReceiver[myid=3]:140296 ] - [ INFO ] Notification: 1 (message format version), 2 (n.leader), 0x9b00000004 (n.zxid), 0x1 (n.round), FOLLOWING (n.state), 1 (n.sid), 0xae (n.peerEpoch) LOOKING (my state)
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140296 ] - [ DEBUG ] I'm a participant: 3
2021-06-07 01:09:38 [ :FastLeaderElection:QuorumPeer[myid=3]null/0.0.0.0:2181:140296 ] - [ DEBUG ] About to leave FLE instance: leader=2, zxid=0x9b00000004, my id=3, my state=FOLLOWING
2021-06-07 01:09:38 [ :QuorumPeer:QuorumPeer[myid=3]null/0.0.0.0:2181:140296 ] - [ INFO ] FOLLOWING
2021-06-07 01:09:38 [ :ZooKeeperServer:QuorumPeer[myid=3]null/0.0.0.0:2181:140296 ] - [ INFO ] Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir true snapdir true
2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140296 ] - [ INFO ] FOLLOWING - LEADER ELECTION TOOK - 2
2021-06-07 01:09:38 [ :QuorumServer:QuorumPeer[myid=3]null/0.0.0.0:2181:140297 ] - [ INFO ] Resolved hostname: test2 to address: test2/172.20.1.98
2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140299 ] - [ TRACE ] i UNKNOWN17 ae00000000
2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140300 ] - [ TRACE ] i UNKNOWN15 ae00000000
2021-06-07 01:09:38 [ :Learner:QuorumPeer[myid=3]null/0.0.0.0:2181:140300 ] - [ INFO ] Getting a snapshot from leader 0xae00000000

[attack-key]

leader这边的strace：
2021-06-07 01:11:18 [ :ZooKeeperThread:WorkerReceiver[myid=2]:427367 ] - [ DEBUG ] Receive new notification message. My id = 2
2021-06-07 01:11:18 [ :FastLeaderElection:WorkerReceiver[myid=2]:427367 ] - [ INFO ] Notification: 1 (message format version), 3 (n.leader), 0x0 (n.zxid), 0x2 (n.round), LOOKING (n.state), 3 (n.sid), 0x4 (n.peerEpoch) LEADING (my state)
2021-06-07 01:11:18 [ :ZooKeeperThread:WorkerReceiver[myid=2]:427367 ] - [ DEBUG ] Sending new notification. My id = 2 recipient=3 zxid=0x9b00000004 leader=2
2021-06-07 01:11:18 [ :QuorumCnxManager:WorkerSender[myid=2]:427367 ] - [ DEBUG ] There is a connection already for server 3
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427370 ] - [ INFO ] Follower sid: 3 : info : true
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ INFO ] Synchronizing with Follower sid: 3 maxCommittedLog=0x9b00000004 minCommittedLog=0x500000001 peerLastZxid=0x0
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ DEBUG ] proposal size is 98
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ WARN ] Unhandled proposal scenario
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ INFO ] Sending SNAP
2021-06-07 01:11:18 [ :LearnerHandler:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ INFO ] Sending snapshot last zxid of peer is 0x0 zxid of leader is 0xae00000000sent zxid of db as 0xae00000000
2021-06-07 01:11:18 [ :ZooKeeperThread:LearnerHandler-null/172.20.1.99:46482:427371 ] - [ WARN ] Exception occurred from thread LearnerHandler-null/172.20.1.99:46482 Throwable:
file: ../src/EString.cpp
line: 1161
errno: 0
message: String index out of range: 1

stack trace:

[attack-key]

你好，相关信息已补充提交到github上，能看下是配置不当还是程序bug吗

…

------------------ 原始邮件 ------------------ 发件人: ***@***.***>; 发送时间: 2021年6月5日(星期六) 下午2:52 收件人: ***@***.***>; 抄送: ***@***.***>; ***@***.***>; 主题: Re: [cxxjava/CxxZookeeper] 配置三个节点，能选举出leader，但一直有警告，第三个节点有异常，每次重启都是这样。 (#1) 第二图stack trace提供下完整信息。 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[cxxjava]

试下相同的配置文件在java版本下会不会报错，会就是配置问题，不会就是cpp版本引入的bug.