[Openstack-devel] Bug#687950: nova-network: IP address is not properly released after shutting down instance

[Maciej Galkiewicz]

Package: nova-network
Version: 2012.1.1-6
Severity: normal

Sep 12 15:44:24 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:44:24 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available
Sep 12 15:44:29 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:44:29 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available
Sep 12 15:44:36 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:44:36 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available
Sep 12 15:44:50 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:44:50 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available
Sep 12 15:45:10 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:45:10 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available
Sep 12 15:45:19 n11c1 dnsmasq-dhcp[24190]: not using configured address
10.1.0.66 because it is leased to fa:16:3e:53:fe:1c
Sep 12 15:45:19 n11c1 dnsmasq-dhcp[24190]: DHCPDISCOVER(br0) fa:16:3e:37:db:54
no address available

Instance with MAC fa:16:3e:53:fe:1c is not running:
# cat instance-000000*/libvirt.xml |grep mac | grep fa
            <mac address='fa:16:3e:6e:a4:a7'/>
            <mac address='fa:16:3e:4e:c6:ee'/>
            <mac address='fa:16:3e:6c:08:71'/>
            <mac address='fa:16:3e:63:0c:7b'/>
            <mac address='fa:16:3e:6d:9c:72'/>
            <mac address='fa:16:3e:3f:0f:a0'/>
            <mac address='fa:16:3e:08:1c:f9'/>
            <mac address='fa:16:3e:5e:f4:bf'/>
            <mac address='fa:16:3e:08:ee:9e'/>
            <mac address='fa:16:3e:65:be:ad'/>
            <mac address='fa:16:3e:37:db:54'/>

# less /var/lib/nova/networks/nova-br0.conf
fa:16:3e:08:1c:f9,event-stream-app1-2012-09-05-10-59.example.com,10.1.0.56
fa:16:3e:6c:08:71,abc-landing-site-app2-2012-08-31-14-31.example.com,10.1.0.16
fa:16:3e:37:db:54,new-production-
postgres-2012-09-12-15-41.example.com,10.1.0.66
fa:16:3e:5e:f4:bf,abc2-td-api-app4-2012-09-07-15-19.example.com,10.1.0.27
fa:16:3e:63:0c:7b,ovs-staging-demo-app1-2012-09-03-18-37.example.com,10.1.0.20
fa:16:3e:6d:9c:72,todo-list-app1-2012-09-04-15-15.example.com,10.1.0.35
fa:16:3e:6e:a4:a7,abc-au-postgresql-2012-08-23-22-05.example.com,10.1.0.25
fa:16:3e:3f:0f:a0,todo-list-db1-2012-09-04-15-15.example.com,10.1.0.17
fa:16:3e:08:ee:9e,wtfcm-app-2012-09-11-23-21.example.com,10.1.0.32
fa:16:3e:65:be:ad,ook-app2-2012-09-12-08-51.example.com,10.1.0.54
fa:16:3e:4e:c6:ee,abc-td-frontend-app1-2012-08-27-08-14.example.com,10.1.0.79

nova.conf:
....
# Network config
multi_host=true
network_manager=nova.network.manager.FlatDHCPManager
flat_network_bridge=br0
my-ip=10.1.0.23
public_interface=eth0
dhcpbridge_flagfile=/etc/nova/nova.conf
dhcpbridge=/usr/bin/nova-dhcpbridge
dhcp_domain=winniecloud.net
force_dhcp_release=True
....
# Hypervisor
connection_type=libvirt
libvirt_type=xen

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash