[CLOUDSTACK-8838] [KVM] agent setup failed when physical interface name is in ensX format (CentOS7)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.5.2
• Fix Version/s: 4.6.0
• Component/s: Management Server
• Security Level: Public (Anyone can view this level - this is the default.)
• Environment: CloudStack 4.5.2 (http://packages.shapeblue.com/cloudstack/upstream/centos7/4.5); CentOS 7.1.1503 / KVM; mariadb-5.5.44-1
• Assignee: Daan
• Reporter: satoru nakaya
• Created: 12/Sep/15 11:23
• Updated: 05/Nov/15 09:37
• Resolved: 25/Oct/15 20:06

Description

[KVM] agent setup failed when physical interface name is in ensX format (CentOS7)

My environment:
CloudStack 4.5.2 (http://packages.shapeblue.com/cloudstack/upstream/centos7/4.5)
CentOS 7.1.1503 / KVM
mariadb-5.5.44-1

management.log:

2015-09-12 08:19:41,930 WARN [o.a.c.alerts] (AgentConnectTaskPool-2:ctx-4925d5ec) alertType:: 7 // dataCenterId:: 1 // podId:: 1 // clusterId:: null // message:: Incorrect Network setup on agent, Reinitialize agent after network names are setup, details : Can not find network: cloudbr1

[root@acs ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master cloudbr0 state UP qlen 1000
link/ether 00:0c:29:a9:09:3f brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:93f/64 scope link
valid_lft forever preferred_lft forever
3: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master cloudbr1 state UP qlen 1000
link/ether 00:0c:29:a9:09:49 brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:949/64 scope link
valid_lft forever preferred_lft forever
4: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:0c:29:a9:09:3f brd ff:ff:ff:ff:ff:ff
inet 10.0.0.30/24 brd 10.0.0.255 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fea9:93f/64 scope link
valid_lft forever preferred_lft forever
5: cloudbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:0c:29:a9:09:49 brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:949/64 scope link
valid_lft forever preferred_lft forever
6: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN
link/ether 52:54:00:99:14:38 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
7: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 500
link/ether 52:54:00:99:14:38 brd ff:ff:ff:ff:ff:ff
8: cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/ether 72:0f:e1:35:ac:6b brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::700f:e1ff:fe35:ac6b/64 scope link
valid_lft forever preferred_lft forever
[root@acs ~]#

workaround:

Don't use ensX format.

add net.ifnames=0 biosdevname=0 to GRUB_CMDLINE_LINUX

[root@acs ~]# vi /etc/default/grub
:
GRUB_CMDLINE_LINUX="vconsole.keymap=jp106 crashkernel=auto vconsole.font=latarcyrheb-sun16 rhgb quiet net.ifnames=0 biosdevname=0"
:
[root@acs ~]# grub2-mkconfig -o /boot/grub2/grub.cfg

And
Edit /etc/sysconfig/network-scripts/ifcfg-ensX

ensX-> ethX

[root@acs ~]# reboot

:

[root@acs ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master cloudbr0 state UP qlen 1000
link/ether 00:0c:29:a9:09:3f brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:93f/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master cloudbr1 state UP qlen 1000
link/ether 00:0c:29:a9:09:49 brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:949/64 scope link
valid_lft forever preferred_lft forever
4: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:0c:29:a9:09:3f brd ff:ff:ff:ff:ff:ff
inet 10.0.0.30/24 brd 10.0.0.255 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fea9:93f/64 scope link
valid_lft forever preferred_lft forever
5: cloudbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:0c:29:a9:09:49 brd ff:ff:ff:ff:ff:ff
inet6 fe80::20c:29ff:fea9:949/64 scope link
valid_lft forever preferred_lft forever
6: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN
link/ether 52:54:00:99:14:38 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
7: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 500
link/ether 52:54:00:99:14:38 brd ff:ff:ff:ff:ff:ff
8: cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/ether 26:08:0e:aa:44:f7 brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::2408:eff:feaa:44f7/64 scope link
valid_lft forever preferred_lft forever
[root@acs ~]#

Issue Links

• breaks: CLOUDSTACK-9037 interface prefixes are not really prefixes in libvirtcomputeresource