解决报错Error response from daemon: rpc error: code = Unavailable desc = all SubConns are in TransientFa

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一、问题描述

使用swarm搭建集群时出现如下错误:

Error response from daemon: rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = "transport: Error while dialing dial tcp 192.168.0.108:2377: connect: no route to host"

这个错误是因为将node节点加入swarm中导致的,原因就是manager节点这台机器上的防火墙没有关闭。

二、问题解决

只要把manager这台机器上的防火墙关闭即可:

1、查看manage节点机器上防火墙状态

[root@centos-7 ~]# systemctl status firewalld.service

技术图片

 

 

可以看到是绿色的,就是运行中。

2、停止防火墙

[root@centos-7 ~]# systemctl stop firewalld.service

3、永久停止

[root@centos-7 ~]# systemctl disable firewalld.service
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.

这样问题就解决了。

 

 

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