quantum 相关问题总结

首先说明咱们的控制节点和网络节点是安装在一块儿的

1，确保openvswitch-switch正常按照并启动，尤为是ovs-brcompatd

root@cloud :~# service openvswitch-switch status
ovsdb-server is running with pid 56266
ovs-vswitchd is running with pid 56275
ovs-brcompatd is running with pid 56359

2,若是ovs-brcompatd is not running，能够参考http://my.oschina.net/u/138210/blog/160816来解决。

3，确保dnsmasq正常启动，若是service dnsmasq start后再用ps -aux|grep dnsmasq，看到的不是以下的输出，那么多是没有安装dnsmasq(apt-get install dns-masq)：

root@cloud:~# ps -aux|grep dnsmasq
warning: bad ps syntax, perhaps a bogus '-'?
See http://gitorious.org/procps/procps/blobs/master/Documentation/FAQ
dnsmasq    1987  0.0  0.0  28900   924 ?        S    11:36   0:00 /usr/sbin/dnsmasq -x /var/run/dnsmasq/dnsmasq.pid -u dnsmasq -r /var/run/dnsmasq/resolv.conf -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new
nobody    27208  0.0  0.0  28900   976 ?        S    11:46   0:00 dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tapf6c204da-20 --except-interface=lo --pid-file=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/pid --dhcp-hostsfile=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/host --dhcp-optsfile=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/opts --dhcp-script=/usr/bin/quantum-dhcp-agent-dnsmasq-lease-update --leasefile-ro --dhcp-range=set:tag0,172.17.17.0,static,120s --conf-file= --domain=openstacklocal
root      27209  0.0  0.0  28900   480 ?        S    11:46   0:00 dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tapf6c204da-20 --except-interface=lo --pid-file=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/pid --dhcp-hostsfile=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/host --dhcp-optsfile=/var/lib/quantum/dhcp/c34ed4e4-6b31-4669-badc-93bb68f17a10/opts --dhcp-script=/usr/bin/quantum-dhcp-agent-dnsmasq-lease-update --leasefile-ro --dhcp-range=set:tag0,172.17.17.0,static,120s --conf-file= --domain=openstacklocal
root      76345  0.0  0.0   9412   888 pts/0    S+   12:01   0:00 grep --color=auto dnsmasq

4，网络服务的启动最好不使用 service XXX restart 这种方式来启动，由于可能看不到错误信息，我是这样启动的，

sudo neutron-server --config-file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini --config-file /etc/neutron/neutron.conf

sudo neutron-openvswitch-agent --config-file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini --config-file /etc/neutron/neutron.conf

sudo neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini

sudo neutron-l3-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/l3_agent.ini

确保他们都正常未报错。

5，gre模式的状况下网络节点须要3张网卡！eth0作内部节点的管理网络，同时作VM的gre网络通道，eth1做为虚拟机使用浮动IP时的出口，eth3做为网络节点本身链接外网的接口。

6，把控制节点和计算节点的/etc/nova/nova.conf里的

libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver

改为：

libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtOpenVswitchVirtualPortDriver

附图：

参考资料：http://docs.openstack.org/grizzly/openstack-network/admin/content/

https://answers.launchpad.net/neutron/+question/213459

http://techbackground.blogspot.com/