1.问题描述

输入以下命令，启动Zookeeper

./zkServer.sh start

输出显示启动没有问题：

输入以下命令，查看Zookeeper状态

./zkServer.sh status

报错如下：

Error contacting service. It is probably not running.

2.解决问题

1.防火墙开启导致

Zookeeper启动错误可能是防火墙未关闭导致的。

输入以下命令，查看防火墙状态：

systemctl status firewalld

显示此信息为正确，表示防火墙处于关闭状态。

若不是此信息，则输入以下命令，关闭防火墙：

systemctl stop firewalld

输入以下命令，禁止防火墙随着系统启动而启动

systemctl disable firewalld

再启动Zookeeper，查看状态，一般就成功了。

2.端口被占用导致

因为我们配置端口是clientPort=2181

输入以下命令，检查端口2181是否被占用

netstat -apn | grep 2181

输出显示被 14979/java 占用了，此时需要杀死该进程，释放端口

输入以下命令，杀死编号为14979的进程

（进程编号14979为博主电脑的进程编号，实际以自己检查出的编号为准）

kill -9 14979

再输入检查命令，看是否有占用。若有继续删除，若没有则重新启动Zookeeper

可以看出，Zookeeper已经启动成功了！检查状态也没有问题。

欢迎大家在评论区留言交流

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启动Zookeeper报错:Error contacting service. It is probably not running.

1.问题描述

2.解决问题

1.防火墙开启导致

2.端口被占用导致

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