quantum 相關問題總結

首先說明咱們的控制節點和網絡節點是安裝在一塊兒的

1，確保openvswitch-switch正常按照並啓動，尤爲是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，能夠參考http://my.oschina.net/u/138210/blog/160816來解決。

3，確保dnsmasq正常啓動，若是service dnsmasq start後再用ps -aux|grep dnsmasq，看到的不是以下的輸出，那麼多是沒有安裝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，網絡服務的啓動最好不使用 service XXX restart 這種方式來啓動，由於可能看不到錯誤信息，我是這樣啓動的，

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

確保他們都正常未報錯。

5，gre模式的狀況下網絡節點須要3張網卡！eth0作內部節點的管理網絡，同時作VM的gre網絡通道，eth1做爲虛擬機使用浮動IP時的出口，eth3做爲網絡節點本身鏈接外網的接口。

6，把控制節點和計算節點的/etc/nova/nova.conf裏的

libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver

改爲：

libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtOpenVswitchVirtualPortDriver

附圖：

參考資料：http://docs.openstack.org/grizzly/openstack-network/admin/content/

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

http://techbackground.blogspot.com/