Public bug reported: in an HA environment( 3 controller node in Kilo), normally,the DHCP agent works well, when I create an network for 192.168.1.0/24, commonly, the ip for dhcp port will be 192.168.1.2/3/4.
but after some testcases, either by restart the HOST, or unplug the HOST networks ( I am not sure about the concrete reason), the dhcp netns changes as below: in general , a) the ip for tap device in the namespace changed. b) the 1st dhcp ns has one tap device, and 2nd has two tap device, and 3rd has three ------------------------------------------------------------------------------------------------------------------ [root@controller1 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 20: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever [root@controller2 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever 129: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1a:dd18/64 scope link valid_lft forever preferred_lft forever [root@controller3 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever 17: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1a:dd18/64 scope link valid_lft forever preferred_lft forever 141: tapf300a0aa-ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:5e:fe:92 brd ff:ff:ff:ff:ff:ff inet 192.168.207.186/24 brd 192.168.207.255 scope global tapf300a0aa-ae valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tapf300a0aa-ae valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe5e:fe92/64 scope link valid_lft forever preferred_lft forever ** Affects: neutron Importance: Undecided Status: New ** Description changed: - in an HA environment( 3 controller node), normally,the DHCP agent works well, when I create an network for 192.168.1.0/24, + in an HA environment( 3 controller node in Kilo), normally,the DHCP agent works well, when I create an network for 192.168.1.0/24, commonly, the ip for dhcp port will be 192.168.1.2/3/4. - but after some testcases, either by restart the HOST, or unplug the + but after some testcases, either by restart the HOST, or unplug the HOST networks ( I am not sure about the concrete reason), - the dhcp netns changes as below: - - in general , a) the ip for tap device in the namespace changed. b) the 1st dhcp ns has one tap device, and 2nd has two tap device, and 3rd has three + the dhcp netns changes as below: + + in general , a) the ip for tap device in the namespace changed. b) + the 1st dhcp ns has one tap device, and 2nd has two tap device, and 3rd + has three ------------------------------------------------------------------------------------------------------------------ [root@controller1 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 - 20: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe1f:5799/64 scope link - valid_lft forever preferred_lft forever + 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 + 20: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe1f:5799/64 scope link + valid_lft forever preferred_lft forever [root@controller2 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 - 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe1f:5799/64 scope link - valid_lft forever preferred_lft forever - 129: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe1a:dd18/64 scope link - valid_lft forever preferred_lft forever + 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 + 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe1f:5799/64 scope link + valid_lft forever preferred_lft forever + 129: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe1a:dd18/64 scope link + valid_lft forever preferred_lft forever [root@controller3 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 - 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe1f:5799/64 scope link - valid_lft forever preferred_lft forever - 17: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe1a:dd18/64 scope link - valid_lft forever preferred_lft forever - 141: tapf300a0aa-ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN - link/ether fa:16:3e:5e:fe:92 brd ff:ff:ff:ff:ff:ff - inet 192.168.207.186/24 brd 192.168.207.255 scope global tapf300a0aa-ae - valid_lft forever preferred_lft forever - inet 169.254.169.254/16 brd 169.254.255.255 scope global tapf300a0aa-ae - valid_lft forever preferred_lft forever - inet6 fe80::f816:3eff:fe5e:fe92/64 scope link - valid_lft forever preferred_lft forever + 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 + 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe1f:5799/64 scope link + valid_lft forever preferred_lft forever + 17: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe1a:dd18/64 scope link + valid_lft forever preferred_lft forever + 141: tapf300a0aa-ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN + link/ether fa:16:3e:5e:fe:92 brd ff:ff:ff:ff:ff:ff + inet 192.168.207.186/24 brd 192.168.207.255 scope global tapf300a0aa-ae + valid_lft forever preferred_lft forever + inet 169.254.169.254/16 brd 169.254.255.255 scope global tapf300a0aa-ae + valid_lft forever preferred_lft forever + inet6 fe80::f816:3eff:fe5e:fe92/64 scope link + valid_lft forever preferred_lft forever -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1515535 Title: Multiple tap device in HA dhcp namespace for the same subnet Status in neutron: New Bug description: in an HA environment( 3 controller node in Kilo), normally,the DHCP agent works well, when I create an network for 192.168.1.0/24, commonly, the ip for dhcp port will be 192.168.1.2/3/4. but after some testcases, either by restart the HOST, or unplug the HOST networks ( I am not sure about the concrete reason), the dhcp netns changes as below: in general , a) the ip for tap device in the namespace changed. b) the 1st dhcp ns has one tap device, and 2nd has two tap device, and 3rd has three ------------------------------------------------------------------------------------------------------------------ [root@controller1 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 20: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever [root@controller2 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever 129: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1a:dd18/64 scope link valid_lft forever preferred_lft forever [root@controller3 ~]# ip netns exec qdhcp-dde8c382-0660-41a8-bbcc-cdc7e0b8b20a 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 14: tap1ea190c7-d8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1f:57:99 brd ff:ff:ff:ff:ff:ff inet 192.168.207.184/24 brd 192.168.207.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tap1ea190c7-d8 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1f:5799/64 scope link valid_lft forever preferred_lft forever 17: tape6f6da9c-34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:1a:dd:18 brd ff:ff:ff:ff:ff:ff inet 192.168.207.185/24 brd 192.168.207.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tape6f6da9c-34 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe1a:dd18/64 scope link valid_lft forever preferred_lft forever 141: tapf300a0aa-ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/ether fa:16:3e:5e:fe:92 brd ff:ff:ff:ff:ff:ff inet 192.168.207.186/24 brd 192.168.207.255 scope global tapf300a0aa-ae valid_lft forever preferred_lft forever inet 169.254.169.254/16 brd 169.254.255.255 scope global tapf300a0aa-ae valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe5e:fe92/64 scope link valid_lft forever preferred_lft forever To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1515535/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp