技術標籤：LinuxERRORlinux

Plancement

• 問題
• 解決方案

問題

在部署open stack的NOVA元件時，註冊API埠到placement的service中，出現如下錯誤

[[email protected] ~]# openstack endpoint create --region RegionOne placement public http://ct:8778
Failed to discover available identity versions when contacting http://ct:5000/v3. Attempti                            ng to parse version from URL.
 

Unable to establish connection to http://ct:5000/v3/auth/tokens: HTTPConnectionPool(host='                            ct', port=5000): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionEr                            ror('<urllib3.connection.HTTPConnection object at 0x7fa784987c10>: Failed to establish a n                            ew connection: [Errno 111] \xe6\x8b\x92\xe7\xbb\x9d\xe8\xbf\x9e\xe6\x8e\xa5'
 
,))

解決方案

使用curl，檢視報錯返回的地址

[[email protected] ~]# curl http://ct:5000/v3
curl: (7) Failed connect to ct:5000; 拒絕連線

監聽5000埠，發現並沒有返回資訊，原來是之前重啟ct倒至apache沒有開啟

[[email protected] ~]# netstat -anpt | grep 5000

重啟apache服務即可解決

[[email protected] ~]# systemctl start httpd
[[email protected] ~]# systemctl status httpd
● httpd.
 
service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: active (running) since 一 2020-12-28 14:55:25 CST; 2s ago
     Docs: man:httpd(8)
           man:apachectl(8)
 Main PID: 5797 (httpd)
   Status: "Processing requests..."
   CGroup: /system.slice/httpd.service
           ├─5797 /usr/sbin/httpd -DFOREGROUND
           ├─5804 /usr/sbin/httpd -DFOREGROUND
           ├─5805 /usr/sbin/httpd -DFOREGROUND
           ├─5806 /usr/sbin/httpd -DFOREGROUND
           ├─5807 (wsgi:keystone- -DFOREGROUND
           ├─5808 (wsgi:keystone- -DFOREGROUND
           ├─5809 (wsgi:keystone- -DFOREGROUND
           ├─5810 (wsgi:keystone- -DFOREGROUND
           ├─5811 (wsgi:keystone- -DFOREGROUND
           ├─5812 /usr/sbin/httpd -DFOREGROUND
           ├─5813 /usr/sbin/httpd -DFOREGROUND
           ├─5814 /usr/sbin/httpd -DFOREGROUND
           ├─5815 /usr/sbin/httpd -DFOREGROUND
           └─5816 /usr/sbin/httpd -DFOREGROUND

12月 28 14:55:25 ct systemd[1]: Starting The Apache HTTP Server...
12月 28 14:55:25 ct systemd[1]: Started The Apache HTTP Server.
[[email protected] ~]# curl http://ct:5000/v3
{"version": {"status": "stable", "updated": "2019-07-19T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v3+json"}], "id": "v3.13", "links": [{"href": "http://ct:5000/v3/", "rel": "self"}]}}