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Zookeeper运维问题集锦

2017-09-12  本文已影响1070人  扫帚的影子

一台 zk 节点重启后始终无法加入到集群中, 无法对外提供服务
2017-07-18 17:31:12,015 - INFO  [WorkerReceiver Thread:FastLeaderElection@496] - Notification: 1 (n.leader), 77309411648 (n.zxid), 1 (n.round), LOOKING (n.state), 1 (n.sid), LOOKING (my state)
2017-07-18 17:31:12,016 - INFO  [WorkerReceiver Thread:FastLeaderElection@496] - Notification: 3 (n.leader), 73014444480 (n.zxid), 831 (n.round), LEADING (n.state), 3 (n.sid), LOOKING (my state)
2017-07-18 17:31:12,017 - INFO  [WorkerReceiver Thread:FastLeaderElection@496] - Notification: 3 (n.leader), 77309411648 (n.zxid), 832 (n.round), FOLLOWING (n.state), 2 (n.sid), LOOKING (my state)
2017-07-18 17:31:15,219 - INFO  [QuorumPeer:/0.0.0.0:2181:FastLeaderElection@697] - Notification time out: 6400
zk的log和snapshot占用大量空间
某台客户端上有的进程可以连接到zk, 有的无法连接
Too many connections from /x.x.x.x - max is x
一台zk服务器无法对外提供服务,报错"Have smaller server identifier, so dropping the connection."
zk客户端偶尔无法成功连接到zk server
[root@m1 ~]# netstat -s |grep -i listen
    53828 times the listen queue of a socket overflowed
    53828 SYNs to LISTEN sockets ignored
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