问题描述

我有三台虚拟机master、slave1、slave2。每台虚拟机启动zkServer.sh时都没有报错,然后紧接着查看zkServer.sh的状态,这时候出现了错误:Error contacting service. It is probably not running.

zookeeper查看启动状态报错:Error contacting service. It is probably not running.

寻找原因

造成上述报错的原因不止一种,我们需要查看具体问题:

  1. 找到zookeeper.out文件,zookeeper.out文件的位置在你所启动zkServer.sh时所在的目录下。
  2. cat zookeeper.out命令查看该文件内容。结果如下:
zookeeper查看启动状态报错:Error contacting service. It is probably not running.
  1. 发现问题为:No route to host (Host unreachable)

解决问题

No route to host (Host unreachable)的错误原因是机器的防火墙未关闭。解决步骤如下:

  1. 查看防火墙状态:systemctl status firewalld.service,结果如下:
zookeeper查看启动状态报错:Error contacting service. It is probably not running.
  1. 关闭防火墙:systemctl stop firewalld.service,结果如下:
zookeeper查看启动状态报错:Error contacting service. It is probably not running.
  1. 重新开启zkServer.sh,尽量按照myid中的id号顺序开启,避免出错。至此问题就已解决:
zookeeper查看启动状态报错:Error contacting service. It is probably not running.

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