| mgagne | mdorman: oh, I didn't get a notice. I was wondering if you were running the l3 agent or not. | 00:08 |
|---|---|---|
| mgagne | mdorman: I settled to write my own L3 agent and I now wonder how the hell people develop against Neutron when extending or writing their own plugins. Class interfaces aren't well defined and you have to reverse engineer the whole thing to understand what's going on... | 00:10 |
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| mgagne | mdorman: and it would be great if L3NATAgent was decomposed a bit more, there is a lot of common code in there which could be useful for a developper without having L3NATAgent polluted by ha.AgentMixin or dvr.AgentMixin :-/ | 00:27 |
| mdorman | have ot check with klindgren__ to be sure, but i am pretty sure we are not running the l3 agent | 00:27 |
| mdorman | we might have a ‘dummy’ one or something that doesn’t actually exist other than in the db, but i am not 100% sure on that | 00:28 |
| mdorman | not real surprised to hear that re: neutron code | 00:28 |
| mdorman | so did you work it out to come to the meetup next week? | 00:28 |
| mgagne | still no news from my boss :-/ | 00:28 |
| mgagne | I really wish to make it | 00:29 |
| mgagne | mdorman: yea... I started with the router service_plugin itself and found that all the code in there assumes there is an agent. And coding stuff in the plugin would mean calls will be sync with my customer network manager/service, at the risk of blocking neutron-server itself completely. | 00:29 |
| mgagne | mdorman: so I moved my interest to neutron-l3-agent (L3NATAgent) and found that creating my own is more or less useful work since all the hard work (I'm interested in) is done in the router_info class so I only need to write my own router class. but l3-agent still has some assumptions about namespace and interface_driver usage hard-coded in there which I doesn't care about. :-/ | 00:32 |
| mdorman | yeah sounds fun :) | 00:41 |
| mgagne | yea, I'm screaming in my head atm | 00:42 |
| WormMan | I'm only cursing at cinder's netapp driver right now :) | 00:43 |
| mgagne | haha | 00:44 |
| mgagne | if only some part of the initialization process was moved to a method, I could redefine them and ignore them :D | 00:45 |
| mgagne | I however don't understand why it's still named "L3NATAgent" when there is no NAT in the agent implementation. | 00:46 |
| WormMan | sigh, it appears openstack's preferred_target on netapp iscsi is the first one, needless to say that causes problems when we're on a different firewall than that address | 00:49 |
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| beddari | mfisch: so no TripleO but rather using Docker and its related toolchains? Was there much discussion around that? :) | 07:10 |
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| beddari | mfisch: I think it is wise and would want the same sometime in the (not too distant) future | 07:11 |
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| arcimboldo | is there anyone running openstack with ceph and having troubles when more than one volume is attached to the VM? | 11:15 |
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| mfisch | beddari: yep no triple o | 13:14 |
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| klindgren__ | mgagne, we don't run the l3agent | 14:46 |
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| mgagne | klindgren__: thanks for the info. I will try to go down the path of writing my own agent =) | 15:09 |
| mgagne | klindgren__: looks like you need to run a mechanism agent on the l3 agent or ports will fail to "bind" | 15:10 |
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| klindgren__ | yea - so all of our floating ip's actually show up as status down - because of that | 15:29 |
| mgagne | working on the mech part now | 15:39 |
| klindgren__ | are you going to be doing bgp advertisements in the agent- or actually making something that logs in to a router and applied the appropriate config? | 15:40 |
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| mgagne | klindgren__: we have a network management system already. we will just proxy the calls to it | 15:56 |
| mgagne | klindgren__: we are looking for floatingips support first. we might implement more later | 15:56 |
| klindgren__ | ah kk | 15:56 |
| mgagne | yea | 15:57 |
| klindgren__ | we proxy the calls into our system as well | 15:57 |
| mgagne | hehe | 15:57 |
| klindgren__ | we jsut did it on the api side vs's the agent side | 15:57 |
| klindgren__ | since it was much easier to add in | 15:57 |
| klindgren__ | but it does have the downside of making your system inline to the response time of the requests | 15:57 |
| klindgren__ | we might refactor that bit later on | 15:58 |
| mgagne | yea. I however fear this might block the API if the network manager doesn't respond in a timely fashion | 15:58 |
| mgagne | yea | 15:58 |
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| mgagne | and now, why can't I merge both l3-agent and mech agent :D | 16:10 |
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| mgagne | better not :-/ | 16:16 |
| clayton | anyone else run into issues with scheduler_tracks_instance_changes defaulting to true on kilo? | 16:17 |
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| clayton | we did a prod kilo upgrade last night and having that on (and it defaults to on) lead to nova-scheduler chewing up a whole core and it being so busy it couldn't reply to rabbit heart beats in a timely fashion | 16:20 |
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| mgagne | I can't see how this could end up well with lot of instances... :-/ | 16:25 |
| clayton | yeah, and this actually is even worse - https://github.com/openstack/nova/commit/82cc056fb7e1b081a733797ed27550343cbaf44c | 16:25 |
| clayton | there is a docimpact tag, but nothing ever showed up in the docs or in the release notes that I can see | 16:25 |
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| mgagne | I think they didn't catch it because heartbeat is disabled by default now | 16:27 |
| clayton | well, it's bad even without heartbeat | 16:28 |
| clayton | even after we turned off heartbeat it was so busy it failed to schedule instances. | 16:29 |
| mgagne | :-/ | 16:30 |
| mgagne | thanks for the heads up... | 16:30 |
| mgagne | I might just end up updating the port bindings from the l3-agent ^^' | 16:32 |
| clayton | fwiw, we're using heartbeats with rabbit behind a load balancer in prod now and I hate to curse myself, but no issues so far. | 16:38 |
| clayton | klindgren__: ^^^ | 16:38 |
| klindgren__ | what version of oslo_messaging? 1.8.3? | 16:40 |
| clayton | 1.8.3-0ubuntu0.15.04.1~cloud0 | 16:41 |
| klindgren__ | kk | 16:41 |
| klindgren__ | we are running 1.8.3 as well - we were running 1.8.1 iirc under juno | 16:42 |
| klindgren__ | I will say that with 1.8.3 I have seen some rabbitmq stuff | 16:42 |
| klindgren__ | but this was related to cells | 16:42 |
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| mgagne | alright, update on my adventure: you don't need an agent like I thought. you can write a mechanism driver and just load it with the others in ml2_conf.ini (mechanism_drivers) on the node running neutron-server. There is a very well documented ABC class (MechanismDriver) which explains how to write your own mechanism. this is were you can bind the port. | 17:03 |
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| WormMan | sigh, cinder netapp iscsi volume broken in my environment... | 17:21 |
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| WormMan | so, do I try nfs or fix iscsi | 17:22 |
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| klindgren__ | welcome back | 17:59 |
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| mgagne | mdorman: so I got my custom router and mechanism driver in place. Router is created, ports are bound correctly and floatingips are now active when associated to instances :D | 21:59 |
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| mdorman | awesome | 22:35 |
| mdorman | i wish we were as fast as you :) | 22:35 |
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| mgagne | I have yet to wire with our network manager :-/ | 22:57 |
| mgagne | it's only configuring the floating ip in syslog for now :P | 22:57 |
| mgagne | mdorman: my mechanism driver is similar to this one: https://gist.github.com/mgagne/f38bfb96f4340e92f93b | 23:02 |
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