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etcd2 无法在我的 CoreOS 节点上启动

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etcd2 无法在我的 CoreOS 节点上启动

我正在尝试在我的 CoreOS 节点中启动 etcd2。

我的云配置中有这个：

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

安装后，当我启动系统时出现错误（根据日志）：

etcdmain：顶级值后的字符“p”无效

并且 etcd2 无法启动。

这是什么意思？我已按照https://coreos.com/os/docs/latest/cloud-config.html和https://coreos.com/os/docs/latest/cluster-discovery.html。

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> journalctl -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> journalctl -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'.

答案1

您的发现 URL 不正确 - 该 URLhttps://discovery.etcd.io/new?size=1用于获取可在配置中使用的新发现 URL。手动执行一次，例如使用 curl：

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

类似这样的 URL 应该是您的发现 URL。每当您构建新集群时，请始终使用新的发现 URL。

答案2

如果那是整个 cloud-config.yml 文件，那么它是错误的。

该文件的第一行需要是：

#cloud-config

IE

#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，从网站复制云配置时要小心。我曾发现输出文件中隐藏了一些奇怪的字符，导致解析器出现错误并导致失败！

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