Reviewed: https://review.openstack.org/325361 Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=f9e9b30b93443c986d3bee7f8b4140b82050418b Submitter: Jenkins Branch: master
commit f9e9b30b93443c986d3bee7f8b4140b82050418b Author: Artom Lifshitz <[email protected]> Date: Fri Jun 3 15:08:08 2016 +0000 Call release_dhcp via RPC to ensure correct host When deleting an instance in a nova-network environment, the network manager calls release_dhcp() on the local host. The linux_net driver then executes dhcp_release, a binary that comes with dnsmasq that releases a DHCP lease on the local host. Upon lease release, dnsmasq calls its dhcp-script, nova-dhcpbridge. The latter calls release_fixed_ip() and the instance's fixed IP is returned to the pool. This is fine if an instance has never been live-migrated. If an instance has been live-migrated, the dnsmasq on its new host fails with 'unknown lease' because it's not the same dnsmasq that originally handed out the lease. Having failed, dnsmasq doesn't call nova-dhcpbridge and release_fixed_ip() is never called. The fixed IP is not returned to the pool and a new instance cannot be booted with that IP. This patches adds a release_dhcp RPC call that calls release_dhcp on the instance's "original" host, thus ensuring that the correct dnsmasq handles the lease release and that nova-dhcpbridge and release_fixed_ip() are called. Change-Id: I0eec8c995dd8cff50c37af83018697fc686fe727 Closes-bug: 1585601 ** Changed in: nova Status: In Progress => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1585601 Title: Deleting a live-migrated instance causes its fixed IP to remain reserved Status in OpenStack Compute (nova): Fix Released Bug description: When using nova-network, an attempt to boot an instance with the fixed IP of an instance that has been live-migrated and then deleted will fail with 'Fixed IP address is already in use on instance.' To reproduce: 1. Boot an instance 2. Live-migrate it 3. Delete it 4. Boot a new instance with the same fixed IP. This has been reported against Icehouse and has been reproduced in master, and is therefore presumably present in all versions in- between. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1585601/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
