Well, the bug discussion seems to point specifically to this dnsmasq fix:
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=9380ba70d67db6b69f817d8e318de5ba1e990b12 Neil On 01/07/15 07:34, Daniel Comnea wrote:
Hi, sorry for no feedback, i've been doing more and more test and after enabled the dnsmasq log i found the error which i'm not longer sure if is related to having duplicated entries dnsmasq-dhcp[21231]: 0 DHCPRELEASE(tap8ecf66b6-72) 192.168.111.24 fa:16:3e:72:04:82 unknown lease Looking around it seems i'm hitting this bug [1] but not clear from the description what was the problem on dnsmasp 2.59 (which comes wiht Fuel 5.1) Any ideas? Cheers, Dani [1] https://bugs.launchpad.net/neutron/+bug/1271344 On Wed, Jun 10, 2015 at 7:13 AM, Daniel Comnea <comnea.d...@gmail.com <mailto:comnea.d...@gmail.com>> wrote: Thanks a bunch Kevin! I'll try this patch and report back. Dani On Tue, Jun 9, 2015 at 2:50 AM, Kevin Benton <blak...@gmail.com <mailto:blak...@gmail.com>> wrote: Hi Daniel, I'm concerned that we are encountered out-of-order port events on the DHCP agent side so the delete message is processed before the create message. Would you be willing to apply a small patch to your dhcp agent to see if it fixes the issue? If it does fix the issue, you should see occasional warnings in the DHCP agent log that show "Received message for port that was already deleted". If it doesn't fix the issue, we may be losing the delete event entirely. If that's the case, it would be great if you can enable debuging on the agent and upload a log of a run when it happens. Cheers, Kevin Benton Here is the patch: diff --git a/neutron/agent/dhcp_agent.py b/neutron/agent/dhcp_agent.py index 71c9709..9b9b637 100644 --- a/neutron/agent/dhcp_agent.py +++ b/neutron/agent/dhcp_agent.py @@ -71,6 +71,7 @@ class DhcpAgent(manager.Manager): self.needs_resync = False self.conf = cfg.CONF self.cache = NetworkCache() + self.deleted_ports = set() self.root_helper = config.get_root_helper(self.conf) self.dhcp_driver_cls = importutils.import_class(self.conf.dhcp_driver) ctx = context.get_admin_context_without_session() @@ -151,6 +152,7 @@ class DhcpAgent(manager.Manager): LOG.info(_('Synchronizing state')) pool = eventlet.GreenPool(cfg.CONF.num_sync_threads) known_network_ids = set(self.cache.get_network_ids()) + self.deleted_ports = set() try: active_networks = self.plugin_rpc.get_active_networks_info() @@ -302,6 +304,10 @@ class DhcpAgent(manager.Manager): @utils.synchronized('dhcp-agent') def port_update_end(self, context, payload): """Handle the port.update.end notification event.""" + if payload['port']['id'] in self.deleted_ports: + LOG.warning(_("Received message for port that was " + "already deleted: %s"), payload['port']['id']) + return updated_port = dhcp.DictModel(payload['port']) network = self.cache.get_network_by_id(updated_port.network_id) if network: @@ -315,6 +321,7 @@ class DhcpAgent(manager.Manager): def port_delete_end(self, context, payload): """Handle the port.delete.end notification event.""" port = self.cache.get_port_by_id(payload['port_id']) + self.deleted_ports.add(payload['port_id']) if port: network = self.cache.get_network_by_id(port.network_id) self.cache.remove_port(port) On Mon, Jun 8, 2015 at 8:26 AM, Daniel Comnea <comnea.d...@gmail.com <mailto:comnea.d...@gmail.com>> wrote: Any help, ideas please? Thx, Dani On Mon, Jun 8, 2015 at 9:25 AM, Daniel Comnea <comnea.d...@gmail.com <mailto:comnea.d...@gmail.com>> wrote: + Operators Much thanks in advance, Dani On Sun, Jun 7, 2015 at 6:31 PM, Daniel Comnea <comnea.d...@gmail.com <mailto:comnea.d...@gmail.com>> wrote: Hi all, I'm running IceHouse (build using Fuel 5.1.1) on Ubuntu where dnsmask version 2.59-4. I have a very basic network layout where i have a private net which has 2 subnets 2fb7de9d-d6df-481f-acca-2f7860cffa60 | private-net | e79c3477-d3e5-471c-a728-8d881cf31bee 192.168.110.0/24 <http://192.168.110.0/24> | | | | f48c3223-8507-455c-9c13-8b727ea5f441 192.168.111.0/24 <http://192.168.111.0/24> | and i'm creating VMs via HEAT. What is happening is that sometimes i get duplicated entries in [1] and because of that the VM which was spun up doesn't get an ip. The Dnsmask processes are running okay [2] and i can't see anything special/ wrong in it. Any idea why this is happening? Or are you aware of any bugs around this area? Do you see a problems with having 2 subnets mapped to 1 private-net? Thanks, Dani [1] /var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/addn_hosts [2] nobody 5664 1 0 Jun02 ? 00:00:08 dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tapc9164734-0c --except-interface=lo --pid-file=/var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/pid --dhcp-hostsfile=/var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/host --addn-hosts=/var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/addn_hosts --dhcp-optsfile=/var/lib/neutron/dhcp/2fb7de9d-d6df-481f-acca-2f7860cffa60/opts --leasefile-ro --dhcp-authoritative --dhcp-range=set:tag0,192.168.110.0,static,86400s --dhcp-range=set:tag1,192.168.111.0,static,86400s --dhcp-lease-max=512 --conf-file= --server=10.0.0.31 --server=10.0.0.32 --domain=openstacklocal _______________________________________________ OpenStack-operators mailing list openstack-operat...@lists.openstack.org <mailto:openstack-operat...@lists.openstack.org> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators -- Kevin Benton __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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