家里还有最老一版本centos搭建的openstack，vm一直是error
我查了10.0.0.11的 ifconfig是正常的。brqxxx占用10.0.0.11地址！
但是10.0.0.31的 ifconfig是不正常的。brqxxx没占用10.0.0.31地址！
百度查：openstack ifconfig brq无ip
看到俩文章https://blog.csdn.net/wangjinruifly/article/details/79765198?utm_source=blogxgwz8
文章2
https://www.cnblogs.com/linuxk/p/9455420.html
知道一些查询命令
因为openstack组件配置文件我大概查过了。
我觉得现在就要查为什么10.0.0.31的 ifconfig是不正常的。brqxxx没占用10.0.0.31地址！是不是libvirtd.service 问题，或者是
多出一个网桥brqxxxxx，并且之前物理网卡enoxxxx的IP地址等配置分配给了网桥。通过brctl 查看网桥信息：
$ brctl show brqxxxx查看信息和10.0.0.11正确的有明显差异！！！造成的
[root@compute1 ~]# ifconfig
brq7a72ae73-18: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::f81f:a0ff:fec4:756c prefixlen 64 scopeid 0x20<link>
ether fa:1f:a0:c4:75:6c txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8 bytes 648 (648.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
brqe61c94f3-df: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::d0fb:9fff:fee8:e18b prefixlen 64 scopeid 0x20<link>
ether d2:fb:9f:e8:e1:8b txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8 bytes 648 (648.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.31 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 fe80::20c:29ff:febb:476e prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:bb:47:6e txqueuelen 1000 (Ethernet)
RX packets 6984 bytes 1389212 (1.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7968 bytes 5947314 (5.6 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 10135 bytes 535279 (522.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10135 bytes 535279 (522.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:0c:58:76 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# brctl show ^C
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# brctl show brq7a72ae73-18
bridge name bridge id STP enabled interfaces
brq7a72ae73-18 8000.000000000000 no
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# brctl show brqe61c94f3-df
bridge name bridge id STP enabled interfaces
brqe61c94f3-df 8000.000000000000 no
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# brctl show brq7a72ae73-18
bridge name bridge id STP enabled interfaces
brq7a72ae73-18 8000.000000000000 no
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# virsh list --all
Id 鍚嶇О 鐘舵€
----------------------------------------------------
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# systemctl status libvirt
Unit libvirt.service could not be found.
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
libvirtd.service libvirt-guests.service
[root@compute1 ~]# systemctl status libvirt
Unit libvirt.service could not be found.
[root@compute1 ~]#
[root@compute1 ~]# systemctl status libvirtd.service
鈼[0m libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since 浜2020-10-27 22:00:41 CST; 29min ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 1304 (libvirtd)
CGroup: /system.slice/libvirtd.service
鈹溾攢1304 /usr/sbin/libvirtd
鈹溾攢2540 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
鈹斺攢2542 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
10鏈27 22:17:22 compute1 libvirtd[1304]: 2020-10-27 14:17:22.296+0000: 2348: error : virNetSocketNewConnectUNIX:712 : 灏嗘彃妲借繛鎺ュ埌 '/var/鈥 鎷掔粷杩炴帴
10鏈27 22:17:22 compute1 libvirtd[1304]: 2020-10-27 14:17:22.297+0000: 2348: error : virNetSocketNewConnectUNIX:712 : 灏嗘彃妲借繛鎺ュ埌 '/var/鈥 鎷掔粷杩炴帴
10鏈27 22:19:18 compute1 dnsmasq[2540]: no servers found in /etc/resolv.conf, will retry
10鏈27 22:19:18 compute1 dnsmasq[2540]: reading /etc/resolv.conf
10鏈27 22:19:18 compute1 dnsmasq[2540]: using nameserver 223.5.5.5#53
10鏈27 22:19:29 compute1 dnsmasq[2540]: no servers found in /etc/resolv.conf, will retry
10鏈27 22:19:29 compute1 dnsmasq[2540]: reading /etc/resolv.conf
10鏈27 22:19:29 compute1 dnsmasq[2540]: using nameserver 223.5.5.5#53
10鏈27 22:21:21 compute1 libvirtd[1304]: 2020-10-27 14:21:21.645+0000: 2350: error : virNetSocketNewConnectUNIX:712 : 灏嗘彃妲借繛鎺ュ埌 '/var/鈥 鎷掔粷杩炴帴
10鏈27 22:21:21 compute1 libvirtd[1304]: 2020-10-27 14:21:21.646+0000: 2350: error : virNetSocketNewConnectUNIX:712 : 灏嗘彃妲借繛鎺ュ埌 '/var/鈥 鎷掔粷杩炴帴
Hint: Some lines were ellipsized, use -l to show in full.
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]# systemctl restart libvirtd
[root@compute1 ~]# systemctl status libvirtd.service
鈼[0m libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since 浜2020-10-27 22:31:13 CST; 1s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 6280 (libvirtd)
CGroup: /system.slice/libvirtd.service
鈹溾攢2540 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
鈹溾攢2542 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
鈹斺攢6280 /usr/sbin/libvirtd
10鏈27 22:31:13 compute1 dnsmasq[2540]: read /etc/hosts - 4 addresses
10鏈27 22:31:13 compute1 dnsmasq[2540]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
10鏈27 22:31:13 compute1 dnsmasq-dhcp[2540]: read /var/lib/libvirt/dnsmasq/default.hostsfile
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: info : libvirt version: 4.5.0, package: 33.el7_8.1 (CentOS B...tos.org)
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: info : hostname: compute1
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: warning : virGetUserIDByName:1005 : User record for user 'ts鈥︽枃浠舵垨鐩綍
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: error : virGetUserID:1043 : 鏃犳晥鍙傛暟锛氳В鏋愮敤鎴'tss' 澶辫触
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.044+0000: 6296: warning : virGetGroupIDByName:1085 : Group record for user '鈥︽枃浠舵垨鐩綍
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.044+0000: 6296: error : virGetGroupID:1123 : 鏃犳晥鍙傛暟锛氳В鏋愮粍 'tss' 澶辫触
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.105+0000: 6296: warning : virQEMUCapsInit:955 : Failed to get host CPU cache info
Hint: Some lines were ellipsized, use -l to show in full.
[root@compute1 ~]# systemctl status libvirtd.service
鈼[0m libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since 浜2020-10-27 22:31:13 CST; 7s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 6280 (libvirtd)
CGroup: /system.slice/libvirtd.service
鈹溾攢2540 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
鈹溾攢2542 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelpe...
鈹斺攢6280 /usr/sbin/libvirtd
10鏈27 22:31:13 compute1 dnsmasq[2540]: read /etc/hosts - 4 addresses
10鏈27 22:31:13 compute1 dnsmasq[2540]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
10鏈27 22:31:13 compute1 dnsmasq-dhcp[2540]: read /var/lib/libvirt/dnsmasq/default.hostsfile
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: info : libvirt version: 4.5.0, package: 33.el7_8.1 (CentOS B...tos.org)
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: info : hostname: compute1
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: warning : virGetUserIDByName:1005 : User record for user 'ts鈥︽枃浠舵垨鐩綍
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.043+0000: 6296: error : virGetUserID:1043 : 鏃犳晥鍙傛暟锛氳В鏋愮敤鎴'tss' 澶辫触
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.044+0000: 6296: warning : virGetGroupIDByName:1085 : Group record for user '鈥︽枃浠舵垨鐩綍
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.044+0000: 6296: error : virGetGroupID:1123 : 鏃犳晥鍙傛暟锛氳В鏋愮粍 'tss' 澶辫触
10鏈27 22:31:14 compute1 libvirtd[6280]: 2020-10-27 14:31:14.105+0000: 6296: warning : virQEMUCapsInit:955 : Failed to get host CPU cache info
Hint: Some lines were ellipsized, use -l to show in full.
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
[root@compute1 ~]#
来源：oschina
链接：https://my.oschina.net/u/4408053/blog/4694626