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OpenStack故障诊断

徐超 发表于 2015-4-9 23:05:07 [显示全部楼层] 回帖奖励 阅读模式 关闭右栏 2 197066
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问题导读：
1、OpenStack如何检查服务？
2、OpenStack报错解决的常见手法？




最近，由于某些需要，这几天在做练习，期间也遇到了些错误，所以，把一些问题整理下，方便大家，也方便自己。


一、Swift问题
执行，如下这一步时，提示下面这个问题，很明显，报错为HTTP 500，意思是该服务没有运行或者说运行不正常
  1. #swift list

  2. AAuthorization Failure. Authorization Failed: An unexpected error prevented the server from fulfilling your request. (HTTP 500)
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查看swift的一个服务
  1. #systemctl status openstack-swift-proxy.service 

  2. openstack-swift-proxy.service - OpenStack Object Storage (swift) - Proxy Server

  3.    Loaded: loaded (/usr/lib/systemd/system/openstack-swift-proxy.service; enabled)

  4.    Active: active (running) since Wed 2015-04-08 14:49:13 CST; 7s ago

  5.  Main PID: 27408 (swift-proxy-ser)

  6.    CGroup: /system.slice/openstack-swift-proxy.service

  7.            ├─27408 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  8.            ├─27413 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  9.            ├─27414 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  10.            ├─27415 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  11.            ├─27416 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  12.            ├─27417 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  13.            ├─27418 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  14.            ├─27419 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  15.            └─27420 /usr/bin/python /usr/bin/swift-proxy-server /etc/swift/proxy-server.conf

  16. 

  17. Apr 08 14:49:13 server1-a.example.com proxy-server[27419]: Configuring auth_uri to point to the public identity endpoint is require...dpoint

  18. Apr 08 14:49:13 server1-a.example.com proxy-server[27419]: Using /tmp/keystone-signing-swift as cache directory for signing certificate

  19. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Adding required filter dlo to pipeline at position 0

  20. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Adding required filter gatekeeper to pipeline at position 0

  21. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Adding required filter catch_errors to pipeline at position 0

  22. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Pipeline was modified. New pipeline is "catch_errors gatekeeper dlo heal...roxy".

  23. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Starting keystone auth_token middleware

  24. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Configuring admin URI using auth fragments. This is deprecated, use 'ide...stead.

  25. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Configuring auth_uri to point to the public identity endpoint is require...dpoint

  26. Apr 08 14:49:13 server1-a.example.com proxy-server[27420]: Using /tmp/keystone-signing-swift as cache directory for signing certificate

  27. Hint: Some lines were ellipsized, use -l to show in full.
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OK，这里的服务状态是没有问题的。我们直奔主题，看看keystone的log
查看keystone日志，这里可以看出是swift服务的endpoint配置错误了“(tenant-id)”。
  1. #tail -f /var/log/keystone/keystone.log 

  2. 2015-04-08 14:47:03.810 27239 TRACE root error: [Errno 98] Address already in use

  3. 2015-04-08 14:47:03.810 27239 TRACE root 

  4. 2015-04-08 14:47:03.811 27239 CRITICAL keystone [-] error: [Errno 98] Address already in use

  5. 

  6. 2015-04-08 14:48:19.559 27143 ERROR keystone.catalog.core [-] Malformed endpoint http://server1-a.example.com:8080/v1/AUTH_%(tenant-id)s - unknown key u'tenant-id'

  7. 2015-04-08 14:48:19.559 27143 WARNING keystone.common.wsgi [-] An unexpected error prevented the server from fulfilling your request.

  8. 2015-04-08 14:48:48.248 27143 ERROR keystone.catalog.core [-] Malformed endpoint http://server1-a.example.com:8080/v1/AUTH_%(tenant-id)s - unknown key u'tenant-id'

  9. 2015-04-08 14:48:48.249 27143 WARNING keystone.common.wsgi [-] An unexpected error prevented the server from fulfilling your request.

  10. 2015-04-08 14:49:32.258 27447 WARNING keystone.openstack.common.versionutils [-] Deprecated: keystone.middleware.core.XmlBodyMiddleware is deprecated as of Icehouse in favor of support for "application/json" only and may be removed in K.

  11. 2015-04-08 14:49:48.012 27458 WARNING keystone.openstack.common.versionutils [-] Deprecated: keystone.middleware.core.XmlBodyMiddleware is deprecated as of Icehouse in favor of support for "application/json" only and may be removed in K.

  12. ^C
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进入mysql数据库修改数据为正确的
  1. #mysql -uroot -predhat

  2. Welcome to the MariaDB monitor.  Commands end with ; or \g.

  3. Your MariaDB connection id is 15

  4. Server version: 5.5.37-MariaDB-wsrep MariaDB Server, wsrep_25.10.r3980

  5. 

  6. Copyright (c) 2000, 2013, Oracle, Monty Program Ab and others.

  7. 

  8. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

  9. MariaDB [(none)]> show databases;

  10. +--------------------+

  11. | Database           |

  12. +--------------------+

  13. | information_schema |

  14. | keystone           |

  15. | mysql              |

  16. | performance_schema |

  17. | test               |

  18. +--------------------+

  19. 5 rows in set (0.00 sec)

  20. MariaDB [(none)]> use keystone;

  21. Reading table information for completion of table and column names

  22. You can turn off this feature to get a quicker startup with -A

  23. 

  24. Database changed
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  1. MariaDB [keystone]> show tables;

  2. +-----------------------+

  3. | Tables_in_keystone    |

  4. +-----------------------+

  5. | assignment            |

  6. | credential            |

  7. | domain                |

  8. | endpoint              |

  9. | group                 |

  10. | migrate_version       |

  11. | policy                |

  12. | project               |

  13. | region                |

  14. | role                  |

  15. | service               |

  16. | token                 |

  17. | trust                 |

  18. | trust_role            |

  19. | user                  |

  20. | user_group_membership |

  21. +-----------------------+

  22. 16 rows in set (0.00 sec)

  23. 

  24. MariaDB [keystone]> select * from endpoint;

  25. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  26. | id                               | legacy_endpoint_id               | interface | region    | service_id                       | url                                                     | extra | enabled |

  27. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  28. | 5207f7d59e3a4b458c4f3af0f1655453 | ca2f88cbd2e94c1389751ef3c7deaf81 | admin     | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant-id)s | {}    |       1 |

  29. | 6abcaec50de449e8af9d052e89393545 | 311dfd01ef7a4cb794f7b6b0ff54812f | internal  | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:5000/v2.0                  | {}    |       1 |

  30. | a59e60335f404583979098c0162e43e5 | 311dfd01ef7a4cb794f7b6b0ff54812f | admin     | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:35357/v2.0                 | {}    |       1 |

  31. | cfa7bacf373d49418e287d90ee0e595f | ca2f88cbd2e94c1389751ef3c7deaf81 | public    | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s | {}    |       1 |

  32. | e58a543fd5b4417487fd5469747f099f | 311dfd01ef7a4cb794f7b6b0ff54812f | public    | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:5000/v2.0                  | {}    |       1 |

  33. | ff9001eafac64c1399a1758dcfb50ea5 | ca2f88cbd2e94c1389751ef3c7deaf81 | internal  | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s | {}    |       1 |

  34. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  35. 6 rows in set (0.00 sec)
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  1. MariaDB [keystone]> update endpoint set url="http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s" where id='5207f7d59e3a4b458c4f3af0f1655453';

  2. Query OK, 1 row affected (0.33 sec)

  3. Rows matched: 1  Changed: 1  Warnings: 0
复制代码

  1. MariaDB [keystone]> select * from endpoint;

  2. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  3. | id                               | legacy_endpoint_id               | interface | region    | service_id                       | url                                                     | extra | enabled |

  4. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  5. | 5207f7d59e3a4b458c4f3af0f1655453 | ca2f88cbd2e94c1389751ef3c7deaf81 | admin     | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s | {}    |       1 |

  6. | 6abcaec50de449e8af9d052e89393545 | 311dfd01ef7a4cb794f7b6b0ff54812f | internal  | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:5000/v2.0                  | {}    |       1 |

  7. | a59e60335f404583979098c0162e43e5 | 311dfd01ef7a4cb794f7b6b0ff54812f | admin     | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:35357/v2.0                 | {}    |       1 |

  8. | cfa7bacf373d49418e287d90ee0e595f | ca2f88cbd2e94c1389751ef3c7deaf81 | public    | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s | {}    |       1 |

  9. | e58a543fd5b4417487fd5469747f099f | 311dfd01ef7a4cb794f7b6b0ff54812f | public    | regionOne | 607cb091a6154bd7bad83835e6e32496 | http://server1-a.example.com:5000/v2.0                  | {}    |       1 |

  10. | ff9001eafac64c1399a1758dcfb50ea5 | ca2f88cbd2e94c1389751ef3c7deaf81 | internal  | regionOne | d035698982f34af89469a01ab6beb81c | http://server1-a.example.com:8080/v1/AUTH_%(tenant_id)s | {}    |       1 |

  11. +----------------------------------+----------------------------------+-----------+-----------+----------------------------------+---------------------------------------------------------+-------+---------+

  12. 6 rows in set (0.00 sec)

  13. 

  14. MariaDB [keystone]> quit

  15. Bye
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修改之后，我们重启服务
  1. #systemctl restart openstack-keystone

  2. #systemctl restart mariadb.service

  3. #systemctl restart openstack-keystone

  4. #systemctl restart memcached

  5. #systemctl restart openstack-swift-proxy

  6. #systemctl restart openstack-swift-container.service 

  7. #systemctl restart openstack-swift-account.service 
复制代码

OK，问题解决
  1. #swift list
复制代码


二、neutron 问题
创建路由时，提示下面这个问题
  1. #neutron router-create router1

  2. Authentication required
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查看日志
  1. #tail -f /var/log/keystone/keystone.log 

  2. 2015-04-09 09:31:48.966 1444 WARNING keystone.common.wsgi [-] Could not find role, admin.

  3. 2015-04-09 09:31:48.997 1444 WARNING keystone.common.wsgi [-] Could not find project, services.

  4. 2015-04-09 11:47:57.934 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1

  5. 2015-04-09 11:47:58.081 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1

  6. 2015-04-09 11:48:41.130 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1

  7. 2015-04-09 11:48:41.273 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1

  8. 2015-04-09 12:06:56.024 1444 WARNING keystone.common.wsgi [-] You are not authorized to perform the requested action, admin_required.

  9. 2015-04-09 12:07:09.367 1444 WARNING keystone.common.wsgi [-] You are not authorized to perform the requested action, admin_required.

  10. 2015-04-09 12:07:54.750 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1

  11. 2015-04-09 12:07:54.886 1444 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 127.0.0.1
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查看keystone日志，没问题；status keystone服务也是运行了的。
–debug时，发现了一些问题，由于一些原因，debug信息这里没有贴出来，得知是配置错误了。
  1. #neutron --debug router-create router1
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添加，admin_user 解决（配置时，遗漏了这一步）
  1. #vim /etc/neutron/neutron.conf

  2. [keystone_authtoken]

  3. admin_user = neutron
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最后，重启服务
  1. #systemctl restart neutron-server.service 
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三、OpenStack服务排查

openstack服务运行查看

  1. # openstack-status

  2. # openstack-service neutron
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诊断问题，除了我们使用–debug、看日志问题外。我们还可以使用–config-file指定服务的配置文件，来检查
这里以neutron为例
  1. # ps aux | grep neutron-service
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  1. # neutron-l3-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/l3_agent.ini   (这后面跟一些该服务的配置文件，可以通过如下systemd查看与哪些配置文件相关)
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  1. #ls /usr/lib/systemd/system | grep neutron*

  2. neutron-dhcp-agent.service

  3. neutron-l3-agent.service

  4. neutron-lbaas-agent.service

  5. neutron-metadata-agent.service

  6. neutron-netns-cleanup.service

  7. neutron-openvswitch-agent.service

  8. neutron-ovs-cleanup.service

  9. neutron-server.service
复制代码
  1. #vim /usr/lib/systemd/system/neutron-l3-agent.service 

  2. 

  3. [Unit]

  4. Description=OpenStack Neutron Layer 3 Agent

  5. After=syslog.target network.target

  6. 

  7. [Service]

  8. Type=simple

  9. User=neutron

  10. ExecStart=/usr/bin/neutron-l3-agent --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/l3_agent.ini --config-file /etc/neutron/fwaas_driver.ini --log-file /var/log/neutron/l3-agent.log

  11. PrivateTmp=false

  12. KillMode=process

  13. 

  14. [Install]

  15. WantedBy=multi-user.target
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四、Horizon界面登陆不上

问题描述：

Horizon界面登陆不上，IP地址可以ping通；检查Nova-api服务、httpd服务均为正常运行，80端口也正常开放；相应horizon日志也无错误和警告信息。

由于，部分原因，这里便未贴出登陆web页面报错图片。出现上述情况后，也着实纠结了下，但随后不久，联想到CA证书问题。（使用的是火狐浏览器）

于是，便尝试在其他电脑上登陆，OK，能登陆。果然是CA证书问题，因为之前那个浏览器其他人登陆过Dashboard，于是将该浏览器上的CA证书删除之、重启，问题解决。

五、小结
记住，如果错误凡是报40X，一般都是keystone有问题，去看日志吧；需要检查该服务的endpoint、user，tenant等服务；如果是50X错误，则是服务运行有问题。


OpenStack错误概率
1、20%的可能性是自己敲命令错了，这需要自己仔细核对是否有误。
2、60%的可能是自己配置文件时配置错了，这需要检查是否有误。
3、4%的可能性是自己遇到bug了，你可以求助于bug社区。
4、其他........


对OpenStack的错误排除，如果你有什么更好的建议或赐教，可以在这里交流，也可以在这里的博客上畅谈。




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j112929 发表于 2015-4-10 12:19:09
好贴,支持下
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lilili 发表于 2015-11-7 20:37:06
如果是服务重启命令执行却重启不了服务呢
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