1、故障现象：Ocata配置完nova服务后，发现computer节点居然没有起来：
[root@linux-node1 nova]# systemctl status openstack-nova-compute.service● openstack-nova-compute.service - OpenStack Nova Compute Server Loaded: loaded (/usr/lib/systemd/system/openstack-nova-compute.service; enabled; vendor preset: disabled) Active: activating (start) since Fri 2017-03-10 08:53:58 CST; 6s ago Main PID: 14063 (nova-compute) CGroup: /system.slice/openstack-nova-compute.service └─14063 /usr/bin/python2 /usr/bin/nova-computeMar 10 08:53:58 linux-node1.wanwan.com systemd[1]: Starting OpenStack Nova Compute Server...[root@linux-node1 ~]# tail -10 /var/log/nova/nova-compute.log 2017-03-10 08:55:25.156 14177 ERROR oslo_service.service [-] Error starting thread.2017-03-10 08:55:25.156 14177 ERROR oslo_service.service Traceback (most recent call last):2017-03-10 08:55:25.156 14177 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/oslo_service/service.py", line 722, in run_service2017-03-10 08:55:25.156 14177 ERROR oslo_service.service service.start()2017-03-10 08:55:25.156 14177 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/service.py", line 144, in start2017-03-10 08:55:25.156 14177 ERROR oslo_service.service self.manager.init_host()2017-03-10 08:55:25.156 14177 ERROR oslo_service.service File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1136, in init_host2017-03-10 08:55:25.156 14177 ERROR oslo_service.service raise exception.PlacementNotConfigured()2017-03-10 08:55:25.156 14177 ERROR oslo_service.service PlacementNotConfigured: This compute is not configured to talk to the placement service. Configure the [placement] section of nova.conf and restart the service.2017-03-10 08:55:25.156 14177 ERROR oslo_service.service
2、处理过程
由于openstack ocata的版本发布时间还不太长，通过查资料发现这是一个bug，查看官方安装手册，没有对应解决方法
在控制节点上：
[root@linux-node1 ~]# yum -y install openstack-nova-placement-api[root@linux-node1 ~]# openstack user create --domain default --password-prompt placementUser Password:#输入密码placementRepeat User Password:#输入密码placement[root@linux-node1 ~]# openstack role add --project service --user placement admin[root@linux-node1 ~]# openstack service create --name placement --description "OpenStack Placement" placement+-------------+----------------------------------+| Field | Value |+-------------+----------------------------------+| description | OpenStack Placement || enabled | True || id | febbc831f12c4f03aa8f4fd59f6b6ffc || name | placement || type | placement |+-------------+----------------------------------++---------------------+----------------------------------+| Field | Value |+---------------------+----------------------------------+| domain_id | default || enabled | True || id | 661b3c937fd040bf9fcf59a0e0985596 || name | placement || options | {} || password_expires_at | None |+---------------------+----------------------------------+[root@linux-node1 ~]# openstack endpoint create --region RegionOne placement admin http://10.10.10.11:8778+--------------+----------------------------------+| Field | Value |+--------------+----------------------------------+| enabled | True || id | 780d9d238aa24f7a81f197f0d86a0560 || interface | admin || region | RegionOne || region_id | RegionOne || service_id | febbc831f12c4f03aa8f4fd59f6b6ffc || service_name | placement || service_type | placement || url | http://10.10.10.11:8778 |+--------------+----------------------------------+[root@linux-node1 ~]# openstack endpoint create --region RegionOne placement internal http://10.10.10.11:8778+--------------+----------------------------------+| Field | Value |+--------------+----------------------------------+| enabled | True || id | 43cf8f9ac6a94f4e9f4815d4830eda01 || interface | internal || region | RegionOne || region_id | RegionOne || service_id | febbc831f12c4f03aa8f4fd59f6b6ffc || service_name | placement || service_type | placement || url | http://10.10.10.11:8778 |+--------------+----------------------------------+ 修改nova的配置文件：
[root@linux-node1 ~]# vim /etc/nova/nova.conf [placement]auth_uri = http://10.10.10.11:5000auth_url = http://10.10.10.11:35357/v3memcached_servers = 10.10.10.11:11211auth_type = passwordproject_domain_name = defaultuser_domain_name = defaultproject_name = serviceusername = novapassword = novaos_region_name = RegionOne
重启对应的服务：
[root@linux-node1 ~]# systemctl restart openstack-nova-compute.service[root@linux-node1 ~]# systemctl status openstack-nova-compute.service● openstack-nova-compute.service - OpenStack Nova Compute Server Loaded: loaded (/usr/lib/systemd/system/openstack-nova-compute.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2017-03-10 09:30:27 CST; 10s ago Main PID: 26692 (nova-compute) CGroup: /system.slice/openstack-nova-compute.service └─26692 /usr/bin/python2 /usr/bin/nova-computeMar 10 09:30:06 linux-node1.wanwan.com systemd[1]: Starting OpenStack Nova Compute Server...Mar 10 09:30:27 linux-node1.wanwan.com systemd[1]: Started OpenStack Nova Compute Server.
查看openstack的计算服务清单：
[root@linux-node1 ~]# openstack compute service list+----+------------------+------------------------+----------+---------+-------+----------------------------+| ID | Binary | Host | Zone | Status | State | Updated At |+----+------------------+------------------------+----------+---------+-------+----------------------------+| 1 | nova-conductor | linux-node1.wanwan.com | internal | enabled | up | 2017-03-10T01:36:26.000000 || 2 | nova-scheduler | linux-node1.wanwan.com | internal | enabled | up | 2017-03-10T01:36:22.000000 || 3 | nova-consoleauth | linux-node1.wanwan.com | internal | enabled | up | 2017-03-10T01:36:21.000000 || 7 | nova-compute | linux-node1.wanwan.com | nova | enabled | up | 2017-03-10T01:36:27.000000 |+----+------------------+------------------------+----------+---------+-------+-------------------------[root@linux-node1 nova]# openstack catalog list+-----------+-----------+---------------------------------------------------------------------------+| Name | Type | Endpoints |+-----------+-----------+---------------------------------------------------------------------------+| nova | compute | RegionOne || | | public: http://10.10.10.11:8774/v2.1/b25ba065fdbb44f9973bdff7b92c061e || | | RegionOne || | | internal: http://10.10.10.11:8774/v2.1/b25ba065fdbb44f9973bdff7b92c061e || | | RegionOne || | | admin: http://10.10.10.11:8774/v2.1/b25ba065fdbb44f9973bdff7b92c061e || | | || keystone | identity | RegionOne || | | internal: http://10.10.10.11:5000/v3/ || | | RegionOne || | | admin: http://10.10.10.11:35357/v3/ || | | RegionOne || | | public: http://10.10.10.11:5000/v3/ || | | || glance | p_w_picpath | RegionOne || | | internal: http://10.10.10.11:9292 || | | RegionOne || | | public: http://10.10.10.11:9292 || | | RegionOne || | | admin: http://10.10.10.11:9292 || | | || placement | placement | RegionOne || | | internal: http://10.10.10.11:8778 || | | RegionOne || | | admin: http://10.10.10.11:8778 || | | RegionOne || | | public: http://10.10.10.11:8778 || | | |+-----------+-----------+---------------------------------------------------------------------------+
小结：新版本的Openstack还是存在一些bug，只能先在测试环境中多进行测试，填坑的过程也是收货满满的