I have two servers aether and themis with dual NICs.
aether has the namespace 151 and 152 for its two NICs, while themis has the namespaces 153 and 154 for its two NICs.
I create a swarm on 151 of aether by
“ip netns exec 151 docker swarm init --advertise-addr 192.168.0.151” It shows
"Swarm initialized: current node (s5xb8j4nd3f49ygqbiowmd7rf) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join --token SWMTKN-1-4m1y77gnxvfpkq5bhl23of4kby1mgfdo0yed8feiq2qjpk2ix3-35lo031qun46p75au62g93j0b 192.168.0.151:2377
To add a manager to this swarm, run ‘docker swarm join-token manager’ and follow the instructions."
Then when I use the above commannd on server themis, it does not work.The details is shown below:
When I type “docker swarm join --token SWMTKN-1-4m1y77gnxvfpkq5bhl23of4kby1mgfdo0yed8feiq2qjpk2ix3-35lo031qun46p75au62g93j0b 192.168.0.151:2377” on themis.
“Error response from daemon: Timeout was reached before node joined. The attempt to join the swarm will continue in the background. Use the “docker info” command to see the current swarm status of your node.”
When I type “docker info”. It will shows
Server Version: 18.05.0-ce
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Error: rpc error: code = DeadlineExceeded desc = context deadline exceeded
Is Manager: false
Node Address: 188.8.131.52
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Kernel Version: 3.16.0-6-amd64
Operating System: Debian GNU/Linux 8 (jessie)
Total Memory: 3.854GiB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Live Restore Enabled: false
WARNING: No memory limit support
WARNING: No swap limit support
WARNING: No kernel memory limit support
WARNING: No oom kill disable support
WARNING: No cpu cfs quota support
WARNING: No cpu cfs period support"
When I add the namespace and use ip netns exec 154 docker swarm join --token SWMTKN-1-4m1y77gnxvfpkq5bhl23of4kby1mgfdo0yed8feiq2qjpk2ix3-35lo031qun46p75au62g93j0b 192.168.0.151:2377
on server themis. It is the same result as without namespce.
I am sure the network is fine. becasue when I ping, it works. When I use the below ping command on themis
root@vm1:~# ip netns exec 154 ping 192.168.0.151
PING 192.168.0.151 (192.168.0.151) 56(84) bytes of data.
64 bytes from 192.168.0.151: icmp_seq=1 ttl=64 time=0.303 ms
64 bytes from 192.168.0.151: icmp_seq=2 ttl=64 time=0.164 ms
64 bytes from 192.168.0.151: icmp_seq=3 ttl=64 time=0.156 ms
64 bytes from 192.168.0.151: icmp_seq=4 ttl=64 time=0.323 ms
When I tried with another two serves with single NIC for join the swarm. there is no problem.
I find solution from internet to diasble the firewall, and synchriozed the clock of the two servers, All do not work. And I tried telnet commmand, which is also not working. I think if telnet work. the join swarm should also work. But I can not know where is the problem and how to slove it
my system is Debian GNU/Linux 8 \n \l
docker -v is
Docker version 18.05.0-ce, build f150324
Thanks a lot.