openstack错误汇总

错误1:
访问dashbord一直无法出现页面
解决思路:
此问题检查httpd访问以及错误日志排查,检查

root@controller ~]# cat /etc/httpd/conf.d/openstack-dashboard.conf
WSGIDaemonProcess dashboard
WSGIApplicationGroup %{GLOBAL}
WSGIProcessGroup dashboard  #这一项在修改时很容易忽略确保4项都在
WSGISocketPrefix run/wsgi

WSGIScriptAlias /dashboard /usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi
Alias /dashboard/static /usr/share/openstack-dashboard/static

<Directory /usr/share/openstack-dashboard/openstack_dashboard/wsgi>
  Options All
  AllowOverride All
  Require all granted
</Directory>

<Directory /usr/share/openstack-dashboard/static>
  Options All
  AllowOverride All
  Require all granted
</Directory>

错误2:
Failed to start libvirt guest: libvirtError: invalid argument: could not find capabilities for domaintype=kvm

解决方法:
nova-comput 内修改 libvirt = qemu 虚拟机不支持kvm虚拟化需要用qemu来管理

错误3:
2018-08-23 17:12:29
Error: Package: 1:openstack-nova-compute-17.0.5-1.el7.noarch (centos-openstack-queens)
Requires: qemu-kvm-rhev >= 2.9.0

[root@compute yum.repos.d]# cat CentOS-QEMU-EV.repo
[centos-qemu-ev]
name=CentOS-$releasever - QEMU EV
baseurl=https://mirrors.aliyun.com/centos/7.5.1804/virt/x86_64/kvm-common/
gpgcheck=0
enabled=1

注：配置compute节点时，额外需要在[DEFAULT]配置段设定的参数：

        vif_plugging_timeout=10
        vif_plugging_is_fatal=false

错误4:

2018-12-17 14:14:26.152 14976 ERROR neutron.agent.dhcp.agent IOError: [Errno 13] Permission denied: u'/var/lib/neutron/tmp/neutron-iptables-qdhcp-fd10f78a-
e6f5-4021-9804-900b724b13a4'2018-12-17 14:14:26.152 14976 ERROR neutron.agent.dhcp.agent 
2018-12-17 14:14:44.799 14976 ERROR neutron.agent.dhcp.agent [req-c1b085c6-e1ed-4950-a9da-cfca5a3299a0 - - - - -] Unable to enable dhcp for e450650f-879e-4
500-88f2-50721fadff1a.: IOError: [Errno 13] Permission denied: u'/var/lib/neutron/tmp/neutron-iptables-qdhcp-e450650f-879e-4500-88f2-50721fadff1a'2018-12-17 14:14:44.799 14976 ERROR neutron.agent.dhcp.agent Traceback (most recent call last):
2018-12-17 14:14:44.799 14976 ERROR neutron.agent.dhcp.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/dhcp/agent.py", line 144, in call_drive
r

解决方法:
/var/lib/neutron/tmp/ 修改用户为neutron

错误5:
在控制台界面修改示例大小提示错误
解决方法:
allow_resize_to_same_host = true
需要在所有nova配置文件default段里加入上面选项

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