zookeepr 遇坑解决方式Cannot open channel to X at election address

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最新推荐文章于 2023-05-20 00:04:16 发布

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分类专栏： zookeeper 文章标签： zookeeper

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在搭建Zookeeper三节点集群时遇到一个节点无法启动的问题，错误信息未给出。通过查阅StackOverflow找到解决办法。

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搭建zookeeper集群的时候3个节点，配置明明正确，却总是由一个启动不了，找了半天原因也没有找到。

错误信息如下

2017-11-26 10:35:56,341 [myid:3] - INFO  [WorkerReceiver[myid=3]:FastLeaderElection@602] - Notification: 1 (message format version), 1 (n.leader), 0x100000000 (n.zxid), 0x1 (n.round), LEADING (n.state), 1 (n.sid), 0x4 (n.peerEpoch) LOOKING (my state)
2017-11-26 10:35:56,343 [myid:3] - INFO  [WorkerSender[myid=3]:QuorumPeer$QuorumServer@184] - Resolved hostname: hadoop-senior02.ibeifeng.com to address: hadoop-senior02.ibeifeng.com/192.168.129.129
2017-11-26 10:35:56,344 [myid:3] - INFO  [WorkerReceiver[myid=3]:FastLeaderElection@602] - Notification: 1 (message format version), 3 (n.leader), 0x100000000 (n.zxid), 0x1 (n.round), LOOKING (n.state), 3 (n.sid), 0x3 (n.peerEpoch) LOOKING (my state)
2017-11-26 10:35:57,642 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@215] - Accepted socket connection from /127.0.0.1:56090
2017-11-26 10:35:57,646 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ServerCnxn@324] - The list of known four letter word commands is : [{2003003491=wchc, 1668247155=cons, 1668445044=crst, 1735683435=gtmk, 1936881266=srvr, 1835955314=mntr, 2003003504=wchp
, 1668247142=conf, 1937010027=stmk, 2003003507=wchs, 1769173615=isro, 1936880500=srst, 1920298859=ruok, 1937006964=stat, 1701738089=envi, 1685417328=dump}]
2017-11-26 10:35:57,646 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ServerCnxn@325] - The list of enabled four letter word commands is : [[wchs, srst, dump, gtmk, crst, envi, stmk, mntr, isro, conf, ruok, stat, srvr, cons]]
2017-11-26 10:35:57,646 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@892] - Processing srvr command from /127.0.0.1:56090
2017-11-26 10:35:57,647 [myid:3] - INFO  [Thread-1:NIOServerCnxn@1040] - Closed socket connection for client /127.0.0.1:56090 (no session established for client)
2017-11-26 10:35:59,405 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@215] - Accepted socket connection from /127.0.0.1:56091
2017-11-26 10:35:59,416 [myid:3] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@892] - Processing srvr command from /127.0.0.1:56091
2017-11-26 10:35:59,417 [myid:3] - INFO  [Thread-2:NIOServerCnxn@1040] - Closed socket connection for client /127.0.0.1:56091 (no session established for client)
2017-11-26 10:35:59,545 [myid:3] - INFO  [QuorumPeer[myid=3]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@854] - Notification time out: 6400
2017-11-26 10:35:59,547 [myid:3] - WARN  [WorkerSender[myid=3]:QuorumCnxManager@584] - Cannot open channel to 2 at election address hadoop-senior02.ibeifeng.com/192.168.129.129:3888
java.net.ConnectException: Connection refused
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:579)
	at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:558)
	at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:534)
	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:454)
	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:435)
	at java.lang.Thread.run(Thread.java:745)

最后参照stackoverflow 解决方法如下

server1 配置如下

server.1=0.0.0.0:2888:3888
server.2=hadoop-senior02.ibeifeng.com:2888:3888
server.3=hadoop-senior03.ibeifeng.com:2888:3888

server2 配置如下

server.1=hadoop-senior.ibeifeng.com:2888:3888
server.2=0.0.0.0:2888:3888
server.3=hadoop-senior03.ibeifeng.com:2888:3888

server3 配置如下

server.1=hadoop-senior.ibeifeng.com:2888:3888
server.2=hadoop-senior03.ibeifeng.com:2888:3888
server.3=0.0.0.0:2888:3888

解决问题stackoverflow 地址 http://stackoverflow.com/questions/30940981/zookeeper-error-cannot-open-channel-to-x-at-election-address#