Question

我在Centos 7上配置了zookeeper。当我试图看到它抛出下一个的状态时：

[ikerlan@server1 ~]$ /opt/zookeeper-3.4.9/bin/zkServer.sh status

 ZooKeeper JMX enabled by default
    Using config: /opt/zookeeper-3.4.9/bin/../conf/zoo.cfg
    Error contacting service. It is probably not running.

如果我运行zkServer.sh start-foreground

 -10-06 10:26:36,550 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@400] - Cannot open channel to 2 at election address /172.16.8.242:3888
java.net.NoRouteToHostException: No existe ninguna ruta hasta el `host'
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

这是我的〜/ .bashrc：

###JAVA CONFIGURATION###
 JAVA_HOME=/usr/java/jdk1.8.0_74/jre/
 export PATH=$PATH:$JAVA_HOME/bin

###HADOOP CONFIGURATION###
 HADOOP_PREFIX=hadoop/
 export PATH=$PATH:$HADOOP_PREFIX/bin:$HADOOP_PREFIX/sbin
#finHadoop

###ZOOKEEPER###
 export PATH=$PATH:/opt/zookeeper-3.4.9/bin
#finZookeper

zoo.cfg：

tickTime=2000
dataDir=/opt/ZooData
clientPort=2181
initLimit=5
syncLimit=2

server.1=172.16.8.241:2888:3888
server.2=172.16.8.242:2888:3888
server.3=172.16.8.243:2888:3888

/ opt / ZooData / myid已配置

[ikerlan@server1 ~]$ sudo lsof -P -iTCP -sTCP:LISTEN  | grep 2181
java    14568 ikerlan   25u  IPv6  53119      0t0  TCP *:2181 (LISTEN)

Answer 1

一个进程已经运行并且肯定会绑定到端口2181。检查以下命令：

$ telnet <zookeeper-server-ip> 2181  # Just to know if some process is listening on port 2181

然后你可以通过发出以下命令来检查2181正在监听哪个进程：

 $lsof -P -iTCP -sTCP:LISTEN  | grep 2181

Answer 2

解决方案：

我已在所有群集节点中禁用了防火墙，但它运行正常。

sudo systemctl stop firewalld

Zookeeper无法在Centos7上正确启动

2 个答案: