*** This bug is a duplicate of bug 1187092 ***
https://bugs.launchpad.net/bugs/1187092
Hi, this was fixed and backported to grizzly here:
https://review.openstack.org/#/c/37150/
** This bug has been marked a duplicate of bug 1187092
Instance nics are reorder after reboot
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https://bugs.launchpad.net/bugs/1233049
Title:
Nova hard reboot will change sequence of network interfaces
Status in OpenStack Compute (Nova):
New
Bug description:
I boot an instance with three NICs for testing some software. However,
when I hard-reboot the instance, the sequence of network interfaces
are changed.
Booting:
eth0 MAC address: 11:22:33...
eth1 MAC address: 22:11:33...
eth2 MAC address: 33:11:22...
After Hard Rebooting:
eth0 MAC address: 33:11:22...
eth1 MAC address: 22:11:33...
eth2 MAC address: 11:22:33...
This phenomenon will affect the interconnection of instances and leads
to malfunctioning of NICs.
I debugged this problem and found out the network_info structure were
changed after hard rebooting. The debug info is attached below.
Booting: network_info structure in nova/virt/libvirt/driver.py spawn function:
[({'injected': False, 'bridge': 'br-int', 'multi_host': False,
'bridge_interface': None, 'cidr_v6': None, 'cidr': u'172.20.1.0/24', 'vlan':
None, 'id': u'73527cdc-a704-417c-8087-f58a40fbecaa'}, {'vif_type': u'ovs',
'should_create_bridge': False, 'vif_devname': u'tapb43293e7-45', 'broadcast':
'172.20.1.255', 'ips': [{'ip': u'172.20.1.13', 'netmask': '255.255.255.0',
'enabled': '1', 'gateway': u'172.20.1.1'}], 'mac': u'fa:16:3e:cf:99:1f',
'should_create_vlan': False, 'gateway': u'172.20.1.1', 'ovs_interfaceid':
u'b43293e7-45bf-452e-8767-b5e1b75cf90c', 'rxtx_cap': 0, 'label':
u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'b43293e7-45bf-452e-8767-b5e1b75cf90c', 'dns': [u'10.1.101.51'],
'dhcp_server': u'172.20.1.3', 'qbg_params': None}), ({'injected': False,
'bridge': 'br-int', 'multi_host': False, 'bridge_interface': None, 'cidr_v6':
None, 'cidr': u'192.168.10.0/24', 'vlan': None, 'id':
u'05394e54-acb3-428d-a359-f038ff95f53c'}, {'vif_type': u'ovs', 'should_create_
bridge': False, 'vif_devname': u'tap5164ba6c-5e', 'broadcast':
'192.168.10.255', 'ips': [{'ip': u'192.168.10.13', 'netmask': '255.255.255.0',
'enabled': '1', 'gateway': u'192.168.10.1'}], 'mac': u'fa:16:3e:01:9a:9a',
'should_create_vlan': False, 'gateway': u'192.168.10.1', 'ovs_interfaceid':
u'5164ba6c-5efc-4e5a-9f8c-85bf9bf576d2', 'rxtx_cap': 0, 'label':
u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'5164ba6c-5efc-4e5a-9f8c-85bf9bf576d2', 'dns': [u'10.1.101.51'],
'dhcp_server': u'192.168.10.3', 'qbg_params': None}), ({'injected': False,
'bridge': 'br-int', 'multi_host': False, 'bridge_interface': None, 'cidr_v6':
None, 'cidr': u'192.168.100.0/24', 'vlan': None, 'id':
u'502f703c-2838-4e6c-bb8a-73780bf6e171'}, {'vif_type': u'ovs',
'should_create_bridge': False, 'vif_devname': u'tapc85bd00c-8e', 'broadcast':
'192.168.100.255', 'ips': [{'ip': u'192.168.100.13', 'netmask':
'255.255.255.0', 'enabled': '1', 'gateway': u'192.168.100.1'}], 'mac':
u'fa:16:3e:76:6e:ff', '
should_create_vlan': False, 'gateway': u'192.168.100.1', 'ovs_interfaceid':
u'c85bd00c-8eac-44cf-83bc-3ddc00d9389a', 'rxtx_cap': 0, 'label':
u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'c85bd00c-8eac-44cf-83bc-3ddc00d9389a', 'dns': [u'10.1.101.51'],
'dhcp_server': u'192.168.100.3', 'qbg_params': None})]
After Hard Rebooting: network_info structure in nova/virt/libvirt/driver.py
_hard_reboot function:
[({'injected': False, 'bridge': 'br-int', 'multi_host': False,
'bridge_interface': None, 'cidr_v6': None, 'cidr': u'192.168.10.0/24', 'vlan':
None, 'id': u'05394e54-acb3-428d-a359-f038ff95f53c'}, {'vif_type': u'ovs',
'should_create_bridge': False, 'vif_devname': u'tap5164ba6c-5e', 'broadcast':
'192.168.10.255', 'ips': [{'ip': u'192.168.10.13', 'netmask': '255.255.255.0',
'enabled': '1', 'gateway': u'192.168.10.1'}], 'mac': u'fa:16:3e:01:9a:9a',
'should_create_vlan': False, 'gateway': u'192.168.10.1', 'ovs_interfaceid':
u'5164ba6c-5efc-4e5a-9f8c-85bf9bf576d2', 'rxtx_cap': 0, 'label':
u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'5164ba6c-5efc-4e5a-9f8c-85bf9bf576d2', 'dns': [u'10.1.101.51'],
'dhcp_server': u'192.168.10.3', 'qbg_params': None}), ({'injected': False,
'bridge': 'br-int', 'multi_host': False, 'bridge_interface': None, 'cidr_v6':
None, 'cidr': u'192.168.100.0/24', 'vlan': None, 'id':
u'502f703c-2838-4e6c-bb8a-73780bf6e171'}, {'vif_type': u'ovs', 'sh
ould_create_bridge': False, 'vif_devname': u'tapc85bd00c-8e', 'broadcast':
'192.168.100.255', 'ips': [{'ip': u'192.168.100.13', 'netmask':
'255.255.255.0', 'enabled': '1', 'gateway': u'192.168.100.1'}], 'mac':
u'fa:16:3e:76:6e:ff', 'should_create_vlan': False, 'gateway': u'192.168.100.1',
'ovs_interfaceid': u'c85bd00c-8eac-44cf-83bc-3ddc00d9389a', 'rxtx_cap': 0,
'label': u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'c85bd00c-8eac-44cf-83bc-3ddc00d9389a', 'dns': [u'10.1.101.51'],
'dhcp_server': u'192.168.100.3', 'qbg_params': None}), ({'injected': False,
'bridge': 'br-int', 'multi_host': False, 'bridge_interface': None, 'cidr_v6':
None, 'cidr': u'172.20.1.0/24', 'vlan': None, 'id':
u'73527cdc-a704-417c-8087-f58a40fbecaa'}, {'vif_type': u'ovs',
'should_create_bridge': False, 'vif_devname': u'tapb43293e7-45', 'broadcast':
'172.20.1.255', 'ips': [{'ip': u'172.20.1.13', 'netmask': '255.255.255.0',
'enabled': '1', 'gateway': u'172.20.1.1'}], 'mac': u'fa:16:3e:cf:99:1
f', 'should_create_vlan': False, 'gateway': u'172.20.1.1', 'ovs_interfaceid':
u'b43293e7-45bf-452e-8767-b5e1b75cf90c', 'rxtx_cap': 0, 'label':
u'[email protected]', 'qbh_params': None, 'vif_uuid':
u'b43293e7-45bf-452e-8767-b5e1b75cf90c', 'dns': [u'10.1.101.51'],
'dhcp_server': u'172.20.1.3', 'qbg_params': None})]
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