etcd2在我的CoreOS节点上启动失败

Question

我正试图在我的etcd2节点中启动CoreOS。

我的云配置中有这样的内容：

coreos:
  etcd2:
    discovery: https://discovery.etcd.io/new?size=1
    advertise-client-urls: http://127.0.0.1:2379,http://127.0.0.1:4001
    initial-advertise-peer-urls: http://127.0.0.1:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://127.0.0.1:2380

安装之后，当我启动系统时，会得到错误(根据日志)：

etcdmain:顶级值后面的无效字符'p‘

etcd2也没能启动。

那是什么意思？我遵循了https://coreos.com/os/docs/latest/cloud-config.html和https://coreos.com/os/docs/latest/cluster-discovery.html的指南。

编辑

节点1

coreos:
  etcd2:
    name: coreos1
    discovery: https://discovery.etcd.io/2d585793b364cf8985ca7a983d6c52e3
    advertise-client-urls: http://127.0.0.1:2379,http://127.0.0.1:4001
    initial-advertise-peer-urls: http://127.0.0.1:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://127.0.0.1:2380

节点2

coreos:
  etcd2:
    name: coreos2
    discovery: https://discovery.etcd.io/2d585793b364cf8985ca7a983d6c52e3
    advertise-client-urls: http://127.0.0.1:2379,http://127.0.0.1:4001
    initial-advertise-peer-urls: http://127.0.0.1:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://127.0.0.1:2380

coreos1>日志-u etcd2：

Sep 21 20:10:31 coreos1 etcd2[671]: 2015/09/21 20:10:31 discovery: found self e276d5b4c276a19d in the cluster
Sep 21 20:10:31 coreos1 etcd2[671]: 2015/09/21 20:10:31 discovery: found 1 peer(s), waiting for 1 more
Sep 21 20:11:31 coreos1 etcd2[671]: 2015/09/21 20:11:31 discovery: error #0: client: etcd member https://discovery.etcd.io returns server error [Gateway Timeout]
Sep 21 20:11:31 coreos1 etcd2[671]: 2015/09/21 20:11:31 discovery: waiting for other nodes: error connecting to https://discovery.etcd.io, retrying in 8m32s

coreos2>日志-u etcd2：

Sep 21 20:11:43 coreos2 systemd[1]: Starting etcd2...
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: etcd Version: 2.1.2
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: Git SHA: ff8d1ec
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: Go Version: go1.4.2
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: Go OS/Arch: linux/amd64
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: setting maximum number of CPUs to 1, total number of available CPUs is 1
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: listening for peers on http://127.0.0.1:2380
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: listening for client requests on http://0.0.0.0:2379
Sep 21 20:11:43 coreos2 etcd2[1515]: 2015/09/21 20:11:43 etcdmain: listening for client requests on http://0.0.0.0:4001
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: stopping listening for client requests on http://0.0.0.0:4001
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: stopping listening for client requests on http://0.0.0.0:2379
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: stopping listening for peers on http://127.0.0.1:2380
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: member "core2" has previously registered with discovery service token (https://discovery.etcd.io/2d585793b364cf8985ca7a983d6c52e3).
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: But etcd could not find vaild cluster configuration in the given data dir (/var/lib/etcd2).
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: Please check the given data dir path if the previous bootstrap succeeded
Sep 21 20:11:45 coreos2 etcd2[1515]: 2015/09/21 20:11:45 etcdmain: or use a new discovery token if the previous bootstrap failed.
Sep 21 20:11:45 coreos2 systemd[1]: etcd2.service: Main process exited, code=exited, status=1/FAILURE
Sep 21 20:11:45 coreos2 systemd[1]: etcd2.service: Unit entered failed state.
Sep 21 20:11:45 coreos2 systemd[1]: etcd2.service: Failed with result 'exit-code'.

Answer 1

您的发现URL是不正确的- URL https://discovery.etcd.io/new?size=1用于获取您可以在配置中使用的新发现URL。手动做一次，例如用卷曲：

curl --silent -H "Accept: text/plain" https://discovery.etcd.io/new?size=1

这将返回如下URL：

https://discovery.etcd.io/a93e30ebf9375f2385fef54c83b2840d

这是一个类似的URL，应该是您的发现URL。每当您构建新集群时，始终使用新的发现URL。

Answer 2

如果这是完整的cloud-config.yml文件，那么它就错了。

文件的第一行需要：

#cloud-config

即

#cloud-config

coreos:
  etcd2:
    discovery: https://discovery.etcd.io/new?size=1
    advertise-client-urls: http://127.0.0.1:2379,http://127.0.0.1:4001
    initial-advertise-peer-urls: http://127.0.0.1:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://127.0.0.1:2380

此外，

在从网站复制云配置时要小心。我在结果输出文件中隐藏了一些奇怪的字符，这些字符导致解析器错误并导致失败！