zookeeper：[WorkerSender[myid=2]:QuorumCnxManager@584] - Cannot open channel to 3 at election address

小灰灰 2021-05-10 11:11 320阅读 0赞

## 错误： ##

zookeeper报错：\[WorkerSender\[myid=2\]:QuorumCnxManager@584\] - Cannot open channel to 3 at election address /192.168.211.140:3888

## 操作： ##

zookeeper安装完成之后，启动之后正常，出现 Error contacting service. It is probably not running.  
之后查看zookeeper.out文件时发现错误。

## 报错日志： ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTAyNTM2Mg_size_16_color_FFFFFF_t_70]

)
    2020-06-18 11:38:20,440 [myid:2] - WARN  [WorkerSender[myid=2]:QuorumCnxManager@584] - Cannot open channel to 3 at election address /192.168.211.140:3888
    java.net.ConnectException: 拒绝连接 (Connection refused)
            at java.net.PlainSocketImpl.socketConnect(Native Method)
            at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
            at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
            at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
            at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
            at java.net.Socket.connect(Socket.java:607)
            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:748)

## 报错原因： ##

查看了网上许多文章之后发现，如果是刚启动zookeeper报出这个错误，然后不再不错，那就是正常现象。原因是有的节点启动，而有的节点还没有启动，这段时间已经启动的节点就会去连接没有启动的节点但是连接不上，就会报出这样的错误。

## 解决： ##

如果所有节点的zookeeper都启动了，还是报错，可以修改每个节点的zoo.cfg文件中  
对应的server.x=0.0.0.0:2888:3888解决：  
![在这里插入图片描述][20200618115224607.png]  
![在这里插入图片描述][2020061811514773.png]  
![在这里插入图片描述][20200618115249145.png]  
重启zookeeper，问题解决

./zkServer.sh restart

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTAyNTM2Mg_size_16_color_FFFFFF_t_70]: /images/20210505/b505b8a105db4589b6700563f3b6bb5a.png
[20200618115224607.png]: /images/20210505/07c66c3e380e47c1acd06bd2752613e5.png
[2020061811514773.png]: /images/20210505/59fe8019ea764daa9e49d06cf1e61904.png
[20200618115249145.png]: /images/20210505/05cafc8617b441dd846331a33f1768d2.png