1.排查

1.啟動zookeeper后查看狀態(tài)/bin/zkServer.sh status發(fā)現(xiàn)報錯Error contacting service. It is probably not running.

[root@zookeeper01 apache-zookeeper-3.8.2-bin]# ./bin/zkServer.sh status
/usr/bin/java
ZooKeeper JMX enabled by default
Using config: /opt/apache-zookeeper-3.8.2-bin/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Error contacting service. It is probably not running.

2.查看日志zookeeper-root-server-zookeeper01.out
發(fā)現(xiàn)報了一拒絕鏈接java.net.ConnectException: 拒絕連接 (Connection refused)

[root@zookeeper01 logs]# pwd
/opt/apache-zookeeper-3.8.2-bin/logs
[root@zookeeper01 logs]# ls
zookeeper-root-server-zookeeper01.out
[root@zookeeper01 logs]# vim zookeeper-root-server-zookeeper01.out

2023-09-05 01:09:12,322 [myid:] - INFO  [QuorumPeer[myid=1](plain=[0:0:0:0:0:0:0:0]:2181)(secure=disabled):o.a.z.s.q.FastLeaderElection@996] - Notification time out: 400 ms
2023-09-05 01:09:12,323 [myid:] - WARN  [QuorumConnectionThread-[myid=1]-2:o.a.z.s.q.QuorumCnxManager@401] - Cannot open channel to 3 at election address zookeeper03/192.168.75.132:3888
java.net.ConnectException: 拒絕連接 (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.initiateConnection(QuorumCnxManager.java:384)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager$QuorumConnectionReqThread.run(QuorumCnxManager.java:458)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)

2.解決

方法1：

將配置文件zoo.cfg中節(jié)點對應機器的地址改為：0.0.0.0
修改完再此啟動即可解決。

注意：每臺機器都要改。不能只改一個節(jié)點

server.1=0.0.0.0:2888:3888
server.2=zookeeper02:2888:3888
server.3=zookeeper03:2888:3888
quorumListenOnAllIPs=true

方法2：

若上面方法沒有成功，繼續(xù)下面方法2文章來源地址http://www.zghlxwxcb.cn/news/detail-742431.html

• 刪除data目錄下的文件version-2,zookeeper_server.pid
rm -rf [文件名]

[root@jhh100 data]# pwd
/opt/zookeeper/data
[root@jhh100 data]# ls
myid  version-2  zookeeper_server.pid

• 查看2181線程是否在運行，在的話，殺掉。
  netstat -nltp | grep 2181
kill -9 [線程號]

[root@jhh100 zookeeper]# netstat -nltp | grep 2181
tcp6       0      0 :::2181                 :::*                    LISTEN      74180/java          
[root@jhh100 zookeeper]# kill -9 74180

• 啟動服務

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