Docker 1.12.1：集群初始化后，工作人员无法加入集群 [英] Docker 1.12.1: after swarm init, workers unable to join swarm
问题描述
我遇到与此处描述的相同的问题和此处。我已经尝试了在这两种情况下均无效的所有方法-我仍然看到相同的行为。有人可以提供我可以尝试的替代方法吗？
I am seeing the same problem as described here and here. I have tried everything that worked in those two cases to no avail - I still see the same behavior. Can someone offer alternatives I might try?
我的设置：
我正在运行3个Centos 7.2盒子。在所有计算机上运行的网络时间协议（ntpd）。所有都已更新。这是一些详细信息：
I am running 3 Centos 7.2 boxes. Network Time Protocol (ntpd) running on all machines. All have been yum updated. Here is some detailed info:
Linux version 3.10.0-327.28.2.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) )
Docker版本：
# docker version
Client:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built:
OS/Arch: linux/amd64
Server:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built:
OS/Arch: linux/amd64
设置群管理器：
>docker swarm init --advertise-addr 10.1.1.40:2377 --force-new-cluster
// on some retry attempts (after 'docker swarm leave --force') I ran:
>docker swarm init --advertise-addr 10.1.1.40:2377 --force-new-cluster
管理者身份：
>docker node inspect self
[
{
"ID": "3x5q1n9v956g3ptdle2eve856",
"Version": {
"Index": 10
},
"CreatedAt": "2016-08-27T13:01:13.400345797Z",
"UpdatedAt": "2016-08-27T13:01:13.580143388Z",
"Spec": {
"Role": "manager",
"Availability": "active"
},
"Description": {
"Hostname": "mymanagerhost.mycompany.com",
"Platform": {
"Architecture": "x86_64",
"OS": "linux"
},
"Resources": {
"NanoCPUs": 4000000000,
"MemoryBytes": 16659128320
},
"Engine": {
"EngineVersion": "1.12.1",
"Plugins": [
{
"Type": "Network",
"Name": "bridge"
},
{
"Type": "Network",
"Name": "host"
},
{
"Type": "Network",
"Name": "null"
},
{
"Type": "Network",
"Name": "overlay"
},
{
"Type": "Volume",
"Name": "local"
}
]
}
},
"Status": {
"State": "ready"
},
"ManagerStatus": {
"Leader": true,
"Reachability": "reachable",
"Addr": "10.1.1.40:2377"
}
}
]
在工作节点上（我有两个，但是它们的行为都相同）。
On the worker node (I have two, but they both behave the same).
加入Swarm：
>docker swarm join --token SWMTKN-1-4fjh7kncdpwjvxnxisamhldgenmmnqyvhnx9qdi8d4hkkfuacv-168gs9okd5ck0r4lokdgpef92 10.1.1.40:2377
Error response from daemon: Timeout was reached before node was joined. Attempt to join the cluster will continue in the background. Use "docker info" command to see the current swarm status of your node.
Docker info命令的输出：
Output of Docker info command:
>docker info
Plugins:
Volume: local
Network: null host bridge overlay
Swarm: pending
NodeID:
Error: rpc error: code = 1 desc = context canceled
Is Manager: false
Node Address: 10.1.1.50
Runtimes: runc
Default Runtime: runc
Security Options: seccomp
Kernel Version: 3.10.0-327.28.2.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 15.52 GiB
Name: myWorkerNode.mycompany.com
ID: DAWE:VDRA:ZUVS:P7PH:ADCP:MFNU:2LOS:C6TG:XSIS:Y7EX:I46S:KFXT
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
Insecure Registries:
127.0.0.0/8
在下面的第一个答案中编辑
所以我尝试使用停止/启动周围的命令退出。我做到了：
So I tried leaving with stop/start surrounding commands. I did:
# docker swarm leave --force
Node left the swarm.
# service docker stop
Redirecting to /bin/systemctl stop docker.service
#
# service docker start
Redirecting to /bin/systemctl start docker.service
# docker swarm init --advertise-addr 10.1.1.40:2377
Swarm initialized: current node (0e0y2k2hngnwyeg86ilzbrjmu) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join \
--token SWMTKN-1-2ggj60tnbppgjlg63a58oe5pqtv0vfrpj81hheawanf76x7cjc-7v48qak22wd03y3jyv903a9if \
10.1.1.40:2377
然后在该工人上我做了：
Then on the worker I did:
# docker swarm leave
Node left the swarm.
# service docker stop
Redirecting to /bin/systemctl stop docker.service
# service docker start
Redirecting to /bin/systemctl start docker.service
# docker swarm join \
> --token SWMTKN-1-2ggj60tnbppgjlg63a58oe5pqtv0vfrpj81hheawanf76x7cjc- 7v48qak22wd03y3jyv903a9if \
> 10.1.1.40:2377
Error response from daemon: Timeout was reached before node was joined. Attempt to join the cluster will continue in the background. Use "docker info" command to see the current swarm status of your node.
显然是相同的行为...
Which is obviously the same behavior...
更新
我尝试了@Miad Abrin概述的所有步骤。我仍然得到相同的行为。我想原因与我在执行操作时看到的CERTS错误有关：
I have tried all the steps outlined by @Miad Abrin. I still get the same behavior. I am guessing the cause is related to the CERTS errors I see when I do:
# journalctl -xe
Aug 29 12:26:15 dockerd[6577]: time="2016-08-29T12:26:15.554904435-04:00" level=warning msg="failed to retrieve remote root CA certificate: rpc
Aug 29 12:26:15 dockerd[6577]: time="2016-08-29T12:26:15.555400400-04:00" level=warning msg="failed to retrieve remote root CA certificate: rpc
Aug 29 12:26:15 dockerd[6577]: time="2016-08-29T12:26:15.555478782-04:00" level=warning msg="failed to retrieve remote root CA certificate: rpc
Aug 29 12:26:15 dockerd[6577]: time="2016-08-29T12:26:15.555528929-04:00" level=warning msg="failed to retrieve remote root CA certificate: rpc
Aug 29 12:26:15 dockerd[6577]: time="2016-08-29T12:26:15.555685464-04:00" level=warning msg="failed to retrieve remote root CA certificate: rpc
有人知道这种情况的原因以及如何纠正吗？
Does anyone know the cause of this and how to correct?
推荐答案
你ed在离开群集之前和之后重新启动docker daemon服务。为团队领导者和作品做这件事。这是 1.12 版本中的错误，由于我有相同的问题，因此已在 1.12.1 中修复。
You need to restart your docker daemon service before leaving the swarm and after it. do it both for the swarm leader and the works. This is a bug in 1.12 version and it is fixed in 1.12.1 since I had the same problems.
尝试此操作时的结果
在下面的两个部分中，我用（数字）显示工作人员与管理人员之间的顺序：
In the two sections below I numbered the steps with (num) to show the order between the worker and the manager:
在工作人员上：
(1)# docker swarm leave --force
Error response from daemon: This node is not part of a swarm
(2)# service docker stop
Redirecting to /bin/systemctl stop docker.service
(6)# service docker start
Redirecting to /bin/systemctl start docker.service
#
(7)# docker swarm join \
> --token SWMTKN-1-4gsdy8jshxmd58mvpcm0tlmbbnrrqdrf51ggcwvdv0bvkltxmy-am9o4dsl4ovx6b4lbsabn0fc7 \
> 10.1.1.40:2377
Error response from daemon: Timeout was reached before node was 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.
(8)# nmap -p2377 10.1.1.40
Starting Nmap 6.40 ( http://nmap.org ) at 2016-08-29 10:32 EDT
Nmap scan report for (10.1.0.123)
Host is up (0.00085s latency).
PORT STATE SERVICE
2377/tcp filtered unknown
MAC Address: 00:50:56:B9:76:32
在管理器节点上：
(3)# docker swarm leave --force
Error response from daemon: This node is not part of a swarm
(4)# service docker stop
Redirecting to /bin/systemctl stop docker.service
(5)# service docker start
Redirecting to /bin/systemctl start docker.service
(7)# docker swarm init --advertise-addr 10.1.1.40 --force-new-cluster
Swarm initialized: current node (7z52d3bcoiou61ltgike42dnn) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join \
--token SWMTKN-1-4gsdy8jshxmd58mvpcm0tlmbbnrrqdrf51ggcwvdv0bvkltxmy-am9o4dsl4ovx6b4lbsabn0fc7 \
10.1.1.40:2377
这篇关于Docker 1.12.1：集群初始化后，工作人员无法加入集群的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
