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| gongys | hi | 20:59 |
|---|---|---|
| markvoelker | o/ | 20:59 |
| markmcclain | hi | 20:59 |
| zhuadl | hello! | 20:59 |
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| salv-orlando | hi | 20:59 |
| shh_ | hi | 20:59 |
| jrd-redhat | Yo | 20:59 |
| edgarmagana | hola! | 20:59 |
| mestery | o/ | 20:59 |
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| amotoki | hello | 20:59 |
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| danwent | hi folks | 21:00 |
| danwent | #start-meeting | 21:00 |
| zhuadl | amotoki: just got your email :-) | 21:00 |
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| rkukura | hi | 21:00 |
| nati_ueno | Hi | 21:00 |
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| shivh | hj | 21:00 |
| danwent | #startmeeting | 21:00 |
| openstack | Meeting started Mon Aug 6 21:00:41 2012 UTC. The chair is danwent. Information about MeetBot at http://wiki.debian.org/MeetBot. | 21:00 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 21:00 |
| danwent | arg… tired today. too much latenight coding :) | 21:00 |
| danwent | #info agenda: http://wiki.openstack.org/Network/Meetings | 21:01 |
| notmyname | danwent: latenight coding or http://imgs.xkcd.com/comics/curiosity.png | 21:01 |
| danwent | notmyname: surprisingly, i've been so out of it, I didn't even hear about that until about an hour ago :) | 21:01 |
| danwent | so, Folsom-3 | 21:01 |
| danwent | today is the day | 21:01 |
| garyk | hi all | 21:02 |
| danwent | all reviews for features (i.e., anything with a blueprint) should be in today | 21:02 |
| danwent | these reviews can be WIP reviews | 21:02 |
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| danwent | but we at least need to see where things are, and identify big problems early | 21:02 |
| danwent | code freeze is one week from tomorrow | 21:02 |
| garyk | danwent, http://www.gocomics.com/nonsequitur/2012/08/03 | 21:02 |
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| SumitNaiksatam | Hi All! | 21:03 |
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| danwent | :) frighteningly familar :) | 21:03 |
| danwent | familiar | 21:03 |
| arosen | hi | 21:03 |
| danwent | anyone with a blueprint for Folsom-3 that does not expect to have a WIP posted today? | 21:03 |
| edgarmagana | danwent: even code enhancements should go in today? | 21:04 |
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| danwent | anything that is either a key deliverable in the release, or has impact on other chunks of code. | 21:04 |
| nati_ueno | Hows's this https://blueprints.launchpad.net/quantum/+spec/expose-dhcp-server-ip ? | 21:04 |
| danwent | edgarmagana: are you talking about the item that is specific to cisco plugin? | 21:04 |
| danwent | I suppose if its impact is scoped to the plugin, that's up to you. | 21:05 |
| edgarmagana | danwent: ah ok.. I have time then! This does not impact anything | 21:05 |
| danwent | but remember that reviewer load will be very heavy early next week. | 21:05 |
| markmcclain | danwent: It's likely that the DHCP+RPC WIP won't be posted until the morning | 21:05 |
| edgarmagana | danwent: Yes, I am | 21:05 |
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| danwent | markmcclain: ok, good to know. | 21:05 |
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| danwent | yes, RPC stuff is one of the things I'm expecting to drag out a bit. | 21:06 |
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| salv-orlando | nvp-v2-plugin is also scheduled to come late night (although maybe it WIP-able right now) | 21:06 |
| garyk | markmcclain, you based on https://review.openstack.org/#/c/9591/ | 21:06 |
| markmcclain | garyk: yes and also the OVS one too | 21:07 |
| nati_ueno | If no one do expose-dhcp-server-ip, I can submit it today | 21:07 |
| danwent | ok, so other than RPC stuff for both DHCP + my L3 branch, I think we're mostly on target. | 21:07 |
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| garyk | markmcclain, cool | 21:07 |
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| danwent | nati_ueno: ok, sounds good. | 21:07 |
| danwent | nati_ueno: that one is small enough (I hope) that even if you waited another day or two, I think you would be ok. | 21:07 |
| danwent | not to encourage you to delay or anything… :P | 21:08 |
| nati_ueno | danwent: OK I got it. Could you assign the bp for me? | 21:08 |
| danwent | nati_ueno: done | 21:08 |
| nati_ueno | danwent: Thanks | 21:08 |
| danwent | oh, the one other item is v1 removal | 21:09 |
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| danwent | i think i'll whip up something quick on that tonight, so people can at least see what is coming down the pipe. | 21:09 |
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| carlp | I have one issue I found, and I'm not sure if it's already covered. If you have overlapping IP ranges, then the metadata server does not work. I have some thoughts on how to fix this, but I wanted to see if anyone else had any work/plans on this... | 21:10 |
| garyk | danwent, i can help with the v1 if you want | 21:10 |
| danwent | ok, so other than having gobs of code to review in the next week, sounds like things are moving forward. | 21:10 |
| danwent | garyk: already have some of it local. if I don't get to it tonight, will let you know | 21:10 |
| garyk | dansmith, ok | 21:10 |
| danwent | carlp: i was dealing with that over the weekend too. | 21:10 |
| danwent | carlp: want to create an item to track work on that and to discuss possible designs? | 21:11 |
| carlp | danwent: yes | 21:11 |
| garyk | danwent, carlp , can you guys please elaborate on the problems | 21:11 |
| rkukura | danwent: Will there be much file renaming (i.e. removing v2 from filenames)? | 21:11 |
| danwent | i have a feeling there are a few issues lurking in the nova + quantum v2 integration that we have yet to fully iron out. | 21:11 |
| danwent | rkukura: I was not planning on removing v2 from file names… i figured there's no need to introduce churn | 21:12 |
| rkukura | danwent: agreed | 21:12 |
| danwent | garyk: nova's metadata server uses the source IP of a metadata request to map to a particular instance. | 21:12 |
| carlp | garyk: Sure. When using the new IPAM stuff, you can have multiple networks with the same IP address ranges. When that happens, the metadata server (which only goes by the IP of the VM) can't figure out what to do | 21:12 |
| carlp | in our implementation, everyone has the same private IP space by default | 21:13 |
| garyk | danwent, carlp tx | 21:13 |
| danwent | carlp: can you create a lp issue and assign it to F-3? | 21:13 |
| salv-orlando | danwent: It is probably just me not being able to do a proper search on launchpad, but it seems we also need to track the issue concerning having nova security groups work with Quantum (mostly for the dhcp_server bit) | 21:13 |
| carlp | danwent: on it | 21:13 |
| danwent | we at least want to keep it on our radar for F-3, even if we can't do anything in that time frame | 21:13 |
| danwent | salv-orlando: that was the motivation for the BP that nati_ueno just took, right? | 21:13 |
| danwent | or was there more? | 21:14 |
| danwent | https://blueprints.launchpad.net/quantum/+spec/expose-dhcp-server-ip | 21:14 |
| danwent | though there's extra nova work as well to grap that IP and put it in the network object | 21:14 |
| salv-orlando | ok so I was looking in the wrong place.. bugs - I should have been looking in bps | 21:14 |
| danwent | ok, anything else before we move on to key reviews? | 21:15 |
| danwent | One thing to note: given the extremely heavy review load at the end of F-3, remember to prioritize reviews based on the priority of the associated bp/bug in launchpad | 21:16 |
| danwent | ok, first review to cover | 21:16 |
| danwent | https://review.openstack.org/#/c/9591/ | 21:16 |
| danwent | garyk's rpc branch | 21:16 |
| garyk | yay | 21:16 |
| danwent | this has been pretty picked over, garyk, is this good to go in your opinion? | 21:17 |
| danwent | any outstanding issues? | 21:17 |
| danwent | also, there's a devstack review for that branch: https://review.openstack.org/#/c/10489/ | 21:17 |
| danwent | garyk, which should be merged first? | 21:17 |
| garyk | correct. linux bridge is ready to go. ovs needs a little work | 21:17 |
| garyk | devstack first | 21:17 |
| danwent | ok… i'll ping dean once I've +2'd the devstack review. | 21:17 |
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| garyk | gracias | 21:18 |
| danwent | salv-orlando: https://review.openstack.org/#/c/9845/ public networks. | 21:18 |
| salv-orlando | comments addressed. just pushed another patch for review. | 21:18 |
| garyk | i had a problem with this one - maybe my misunderstanding. was only able to create private networks | 21:18 |
| danwent | ok, do we have two cores working on reviewing the patch already | 21:18 |
| danwent | ? | 21:18 |
| salv-orlando | garyk: I was writing you an email. | 21:19 |
| garyk | salv-orlando: great. if it is my bad you have +2 | 21:19 |
| salv-orlando | however, bottom line is that you can create network with permission 0644 only if you're admin | 21:19 |
| salv-orlando | unless you remove the appropriate line from policy.json | 21:19 |
| garyk | tx, i'll give it a bash | 21:19 |
| danwent | ok. i will try and be the second core on that one | 21:20 |
| danwent | I also wanted to call attention to the quantum + horizon review: https://review.openstack.org/#/c/10116/ | 21:20 |
| amotoki | hi | 21:20 |
| danwent | would be good to get some reviewers/testers from quantum to look at this. | 21:20 |
| danwent | amotoki: anything to report on this? looks like unit tests for horizon where having issues? | 21:21 |
| amotoki | Almos all features have been implemented. | 21:21 |
| amotoki | I informed Gabriel that it is ready for review just before the meeting. I will also send an email after the meeting. | 21:21 |
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| danwent | amotoki: great. i'm guessing gabriel will want to have unit tests working before a review though | 21:22 |
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| danwent | do you know why they are failing in jenkins? | 21:22 |
| amotoki | regarding unit test, jenkins uses the released version of quantumclient. | 21:22 |
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| amotoki | it seems be the reason jenkins fails. | 21:22 |
| amotoki | I will talk with Gabriel about that. | 21:23 |
| carlp | danwent: https://blueprints.launchpad.net/quantum/+spec/metadata-overlapping-networks | 21:23 |
| danwent | ah, ok. please include monty + james blair on those dicussions, as me as well. | 21:23 |
| danwent | carlp: thanks. | 21:23 |
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| danwent | monty and james manage the jenkins infrastructure. | 21:23 |
| jeblair | hi! | 21:23 |
| amotoki | I also saw the thread on ML about glanceclient. | 21:24 |
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| danwent | jeblair: hi, does jenkins run horizon unit tests with trunk versions of other clients, or a past release version? | 21:24 |
| danwent | we need it to run with the latest of our client, since only that version has v2 API support. | 21:24 |
| salv-orlando | didn't we had the same issue with nova when we did the quantum v2 integration? | 21:24 |
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| jeblair | the unit tests run in a virtualenv with the versions of other software as specified in pip requires | 21:25 |
| jeblair | danwent: so the solution is probably to make sure that the versions you need are released, and then specify those versions in pip-requires | 21:25 |
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| jeblair | (it should be easier for client libs to release now, the ptls just need to tag them.) | 21:26 |
| danwent | jeblair: yes, though i'm a bit anxious about doing a release until the stuff has had more testing... | 21:27 |
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| jeblair | danwent: which client? | 21:27 |
| danwent | python-quantumclient | 21:27 |
| danwent | ok, we can take this offline. | 21:27 |
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| danwent | but come to think of it, i'm not sure why the horizon unit tests necessarily even require the client library | 21:28 |
| danwent | ah, forget it, probably imports. | 21:28 |
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| danwent | amotoki: ok, let's work with gabriel to get to the bottom of these unit test issues asap | 21:28 |
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| danwent | please send mail out to all of us. | 21:28 |
| amotoki | anyway i wil check the error reports after the meeting. | 21:28 |
| jeblair | danwent: sounds good. | 21:29 |
| danwent | ok, next review | 21:29 |
| danwent | https://review.openstack.org/#/c/10828/ | 21:29 |
| amotoki | i wil send the status update to related peoples. | 21:29 |
| danwent | nati_ueno: this is devstack exercise script for quantum with v2 support | 21:29 |
| nati_ueno | Yes | 21:29 |
| nati_ueno | It is testing very simple test case now. | 21:30 |
| danwent | this is critical to getting quantum to be part of the commit gating | 21:30 |
| danwent | nati_ueno: we also need to work with markmcclain, as once the dhcp namespaces stuff goes in, this will cause issues, right? | 21:30 |
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| danwent | as the test host will no longer have an IP to ping the network directly? | 21:31 |
| nati_ueno | danwent: Yes it true. After that one is merged, I'll update devstack | 21:31 |
| garyk | danwent: namespaces may be problmatic with different linux flavors | 21:31 |
| danwent | ok. markmcclain's patch is pretty small, so we should be able to merge it soon, would be good to have devstack change ready. | 21:31 |
| markmcclain | danwent: yes we'll have to update the code to properly cleanup namespaces when someone unstacks | 21:31 |
| danwent | markmcclain: agreed | 21:31 |
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| danwent | garyk: what kernels will have problems? | 21:32 |
| danwent | namespaces have been around for a while, right? | 21:32 |
| danwent | or is it not a kernel issue? | 21:32 |
| garyk | i had problems with ubuntu 11. have yet to try fedora 17 | 21:32 |
| nati_ueno | ubuntu11 not support namespace | 21:32 |
| garyk | mark can maybe add some more info | 21:32 |
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| garyk | is this a limitation that we can live with? | 21:33 |
| danwent | is it that they did not support namespaces, or that namespace where configured using a different utility? | 21:33 |
| danwent | namespaces have been around since 2.6.27 | 21:33 |
| danwent | according to google | 21:33 |
| markmcclain | ubuntu 11 does not "ip netns" | 21:33 |
| danwent | yeah, that was my guess... | 21:34 |
| markmcclain | the kernel itself doesn't support it | 21:34 |
| danwent | oh really? what kernel is ubuntu 11? or is it just that it wasn't enabled? | 21:34 |
| salv-orlando | the latter I believe | 21:34 |
| rkukura | I think the version of iproute2 in RHEL and maybe other distros doesn't support netns | 21:34 |
| nati_ueno | Ah it support namespace but it is different spec for ubuntu11 | 21:34 |
| salv-orlando | the vanilla kernel is compiled without support for netns | 21:34 |
| garyk | i think that this is certainly something that we should consider for deployments and usage | 21:35 |
| amotoki | Until Folsom release, we need to clarify which kernel version supports namespace. | 21:36 |
| markmcclain | yeah… I was wondering what our minimum supported versions | 21:36 |
| danwent | yes, though it seems like the tricky thing is not saying what kernel version, so much as what distros have namespaces enabled | 21:36 |
| markmcclain | Nova says 12.04+ and f16+ | 21:36 |
| danwent | garyk: can you check out the status of namespaces on fedora? | 21:37 |
| markmcclain | f17 has them | 21:37 |
| danwent | (as a TODO) | 21:37 |
| garyk | danwent: ok | 21:37 |
| markmcclain | I've testing with based on garyk's feedback | 21:37 |
| danwent | anyway, at this point, for Folsom I don't see many alternatives to using namespaces. | 21:37 |
| danwent | does anyone see alternatives? | 21:38 |
| salv-orlando | nothing that can be ready for folsom | 21:38 |
| garyk | markmcclain: i am using f16 not 17 | 21:38 |
| salv-orlando | I think we can already make them optional, scarfing the ability of having overlapping cidr, is that right? | 21:39 |
| salv-orlando | I meant "sacrificing" not "scarfing" | 21:39 |
| danwent | it would be possible to run a dhcp + l3 agent that is dedicated to a single router | 21:39 |
| danwent | and you could run this in an isolated VM if you really had to (the one vm per tenant model) | 21:39 |
| danwent | but other than that, I can't see many options of avoiding namespaces | 21:40 |
| salv-orlando | danwent: agreed. But do you see this feasible for folsom? | 21:40 |
| danwent | salv-orlando: you mean making the agents support just taking care of a single router? | 21:40 |
| salv-orlando | I mean running the agents in a separate VMs. We will need to take care of the life cycle of these vms | 21:41 |
| danwent | for the l3-agent its pretty simple, and I'm guessing it wouldn't be a major change for the dhcp stuff, but its more work at a time when we already have plenty to do :) | 21:41 |
| salv-orlando | and also prepare an image | 21:41 |
| danwent | salv-orlando: ah, wasn't talking about managing vm life-cycle | 21:41 |
| danwent | just modifying the agents so that someone could use them in such a use case if they where managing vm life-cycle themselves. | 21:41 |
| danwent | #todo: #garyk #danwent define minimum distro version requirements for overlapping IPs | 21:42 |
| salv-orlando | I see your point. Maybe we can move it to the mailing list. Shouldn't be an issue once RPC is in place. | 21:42 |
| danwent | markmcclain: how hard it is to have a version of the dhcp stuff that doesn't use namespaces… from what I remember in the code, should be relatively straightfoward? | 21:43 |
| markmcclain | danwent: it's easy to make it configurable | 21:43 |
| markmcclain | it's really dependent on the interface driver in use | 21:43 |
| danwent | ok… so good that we identified this as an issue. Let's move it to the ML | 21:43 |
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| danwent | markmcclain: mmm…. not sure I follow, but we can talk more on ML | 21:43 |
| danwent | damn, we're still in the reviews section of the agenda | 21:44 |
| danwent | ok, any other important community reviews that anyone needs to call out? | 21:44 |
| danwent | 3…2…1. | 21:44 |
| salv-orlando | Yeah this meeting it's going to last till dawn for me and garyk :) | 21:45 |
| danwent | :) | 21:45 |
| danwent | ok, XML support | 21:45 |
| salv-orlando | I'm reviewing andrews' patch | 21:45 |
| danwent | (we're on to design issues section) | 21:45 |
| salv-orlando | But I will commit the review in the morning... | 21:45 |
| danwent | nati_ueno: did you say that vishy is planning on dropping XML support from nova? | 21:45 |
| danwent | if so, i'd move to drop XML support from quantum | 21:45 |
| nati_ueno | danwent: Yes We discuss it in nova meeting. | 21:45 |
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| danwent | even if we get this patch merged, i still think there's a lot of overhead dealing with XML, and we have the issue that XML can't communicate the notion of null/None | 21:46 |
| danwent | what do others thing on this topic? | 21:46 |
| rkukura | I was curious if/how extended attributes would be supported, but haven't had time to look | 21:47 |
| salv-orlando | I think that as we're introducing a new version of the API, which is not bw-compatible | 21:47 |
| salv-orlando | this is the time to make a decision | 21:47 |
| danwent | salv-orlando: agreed. | 21:47 |
| salv-orlando | if we vote for xml support now, we'll have to maintain it at least until Qauntum v3 is released | 21:47 |
| salv-orlando | extended attributes might be supported with xml namespaces, but some work is perhaps required on the patch | 21:48 |
| danwent | ok, so i'm not hearing any strong input, so how about i'll rephrase. Is anyone against eliminating XML support, as long as nova does not support XML either. | 21:48 |
| salv-orlando | I think null values might be supported through empty elements, but still need to check for feasibility | 21:48 |
| danwent | salv-orlando: my question there was how to tell the difference between empty string and Null | 21:48 |
| gongys | Is it XML mandatory? If not, defer it. | 21:48 |
| jkoelker | +1 for dropping xml, I don't recal the exact percentage, but it was a small percentage of our traffic is xml | 21:48 |
| salv-orlando | I'd like to hear about this from people who put Quantum in production | 21:49 |
| jkoelker | we use json exclusively for quantum communication | 21:49 |
| salv-orlando | jkoelker must have read my mind | 21:49 |
| danwent | ok, so i'll plan on removal | 21:49 |
| danwent | i'll confirm with ttx | 21:49 |
| nati_ueno | FYI nova discussion about xml it start from about 21:16:05 http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-08-02-17.00.log.html | 21:49 |
| * _cerberus_ hugs danwent | 21:49 | |
| danwent | nati_ueno: great, thanks | 21:50 |
| danwent | _cerberus_: now that's a first :P | 21:50 |
| _cerberus_ | You're right, usually I'm more suggestive | 21:50 |
| danwent | ok, nati_ueno, so assuming we remove XML, then for the gateway_ip issue you wanted to discuss, can we just use json null? | 21:50 |
| salv-orlando | <note xml="adios"><bye></bye></note> | 21:50 |
| nati_ueno | danwent: Sorry removing XML is not decided yet. But nova guys are going to propose it as the log | 21:51 |
| danwent | gongys: is there a way to pass in null values in the CLI? | 21:51 |
| nati_ueno | danwent: I agree for just use json null | 21:51 |
| danwent | ok, i'll follow up with gongys later | 21:51 |
| danwent | Next topic, to keep things moving | 21:52 |
| danwent | extensions that introduce new resources | 21:52 |
| danwent | SumitNaiksatam, gongys, and I all have the same need, which is to have an extension that introduces a new resource | 21:52 |
| salv-orlando | on previous topic (null values), nati_ueno started a thread on the ml. Please share your thoughts there | 21:52 |
| gongys | My quota is using this. | 21:52 |
| gongys | introduce new resouce in ext. | 21:53 |
| danwent | gongys: yes | 21:53 |
| nati_ueno | Metaplugin will add flavor resource in ext | 21:53 |
| salv-orlando | why the existing framework is not good enough? | 21:53 |
| garyk | one thing is lacking - in some cases extensions are valid to all plugins - for example quotas | 21:53 |
| danwent | salv-orlando: there's no way to introduce a new resource that automatically takes advantage of all of the resouce-goodness from jkoelker's API framework. | 21:53 |
| salv-orlando | Ok, so I suspected this. Basically the issue is that currently extensions kind of live in a world of their own. | 21:54 |
| danwent | in my l3 patch, I took an approach similar to what rkukura did for attributes, where the main API code asks each extension whether there are any new resources it wants to introduce. | 21:54 |
| salv-orlando | danwent: you're not using anymore an extension middleware? | 21:55 |
| danwent | salv-orlando: yes, so you can continue to have them in their own world, but then they don't take advantage of validation, policy, generic code, etc. | 21:55 |
| danwent | salv-orlando: correct | 21:55 |
| danwent | anyway, I will have a WIP up by tonight, but this is something we need to agree on a single approach for doing and tackle | 21:55 |
| gongys | NO, in quota ext, I am using the generic validation code. | 21:55 |
| jkoelker | there is nothing to say they could not use their own mapper and then use it all | 21:55 |
| salv-orlando | danwent: agreed. | 21:55 |
| gongys | We just need to use the same prepare_body_xx() (I forget the function name) function as base code does. | 21:56 |
| danwent | gongys: ok, I will take a look. My main motivation was not actually around validation, so perhaps there's a way to leverage that some other way. | 21:56 |
| danwent | gongys: agreed. | 21:56 |
| salv-orlando | I think we can make the code base a whole lot leaner if we just map extensions with the same criteria we use for base resources. | 21:57 |
| rkukura | danwent: I like the approach you were suggesting | 21:57 |
| salv-orlando | We just need a slightly different approach for loading extensions. | 21:57 |
| danwent | salv-orlando: that is how i'm leaning as well. | 21:57 |
| danwent | ok, so if someone wants to drive this, let me know. otherwise, i'll slice off the related code from my patch, and propose it. | 21:58 |
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| salv-orlando | I would love to lead, but I will be offline wednesday and part of thursday this week. | 21:58 |
| danwent | ok, we have one more design topic, but we're at the end of our time. | 21:58 |
| gongys | I have reexamined the whole extension framework in nova project. After removing v1 code, I want to refactor the quantum extension framework | 21:58 |
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| danwent | so I'll quickly open it up for open discussion, then anyone who wants to discussion multi-host dhcp can stick around after. | 21:59 |
| rkukura | gongys: that sounds like a good summit session to me | 21:59 |
| danwent | gongys: for folsom, or later? I don't think we have time for anything significant in folsom | 21:59 |
| salv-orlando | I have a quick comment on the failing tests for horizon: #from .tables import DetailsTable | 21:59 |
| salv-orlando | 38from .subnets.tables import SubnetsTable | 21:59 |
| salv-orlando | 39#from .subnets.views import CreateView as AddSubnetView | 21:59 |
| salv-orlando | 40from .ports.tables import PortsTable | 21:59 |
| danwent | #topic open discussion | 21:59 |
| *** openstack changes topic to "open discussion" | 21:59 | |
| salv-orlando | sorry did not meant to press enter before open discussion :) | 21:59 |
| salv-orlando | seems line 40 should be commented out | 22:00 |
| danwent | ok, any other open discussion? | 22:00 |
| gongys | flaoting ips for nova integration? | 22:00 |
| amotoki | salv-orlando: thanks. i'll check it. | 22:00 |
| danwent | also remember to sign up for a review day if you haven't already: http://wiki.openstack.org/Quantum/ReviewDays | 22:00 |
| nati_ueno | Can we discuss about multi-host? | 22:00 |
| danwent | gongys: there's a bug for that in F-3. will have proposed new floating-ip calls up in WIP branch tonight | 22:01 |
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| danwent | so we can start working on it as soon as tomorrow. | 22:01 |
| danwent | nati_ueno: yup, just after open discussion | 22:01 |
| gongys | ok | 22:01 |
| danwent | gongys: did you want to work on that? | 22:01 |
| nati_ueno | danwent: I got it | 22:01 |
| danwent | I can point you to the bugs | 22:01 |
| danwent | gongys: #1023169 | 22:01 |
| danwent | #1031119 | 22:01 |
| gongys | two? | 22:02 |
| danwent | one is for reporting floating ips in commands like nova list | 22:02 |
| danwent | other is for proxying nova floating ip calls to quantum | 22:02 |
| danwent | ok, let's wrap this up. otherws are welcome to stay for multi-host discussion | 22:02 |
| danwent | thanks folks, have a good week, please remember to spend a lot of cycles reviewing this week. its crunch time :) | 22:03 |
| danwent | #endmeeting | 22:03 |
| *** openstack changes topic to "OpenStack meeting channel. See http://wiki.openstack.org/Meetings for schedule and http://eavesdrop.openstack.org/meetings/openstack-meeting/ for meeting logs" | 22:03 | |
| openstack | Meeting ended Mon Aug 6 22:03:08 2012 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 22:03 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-08-06-21.00.html | 22:03 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-08-06-21.00.txt | 22:03 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-08-06-21.00.log.html | 22:03 |
| danwent | gongys: make sense? | 22:03 |
| danwent | nati_ueno: markmcclain chat about multi-host dhcp? | 22:03 |
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| markmcclain | yes | 22:03 |
| nati_ueno | Yep | 22:03 |
| gongys | I will have a try. But I need the floating features available in quantum. | 22:03 |
| danwent | gongys: yup, i can point you to the branch now (on my github) or the WIP branch will be available tonight on review.openstack.org | 22:04 |
| nati_ueno | Yusuke updated white board https://blueprints.launchpad.net/quantum/+spec/quantum-multihost-dhcp | 22:04 |
| garyk | good night guys. | 22:04 |
| danwent | garyk: night! | 22:04 |
| nati_ueno | garyk: Good night! | 22:04 |
| salv-orlando | bye garyk | 22:05 |
| nati_ueno | Slide is https://docs.google.com/presentation/d/1kisLDcWg_Mus5g8QzXMD4w7gWou-3t1drbOKTlYg6MU/edit#slide=id.p9 | 22:05 |
| markmcclain | garyk: night | 22:05 |
| nati_ueno | You can also put comment on the slide | 22:05 |
| nati_ueno | So my concern is host selection in dhcp-agent | 22:06 |
| nati_ueno | IMO, multi-host is one use case pattern. | 22:06 |
| nati_ueno | I discussed this with Dan in this morning | 22:07 |
| nati_ueno | Conclusion is something like page 9 | 22:07 |
| nati_ueno | In page 9, each plugin will implement a python method get_local_port_ids | 22:08 |
| nati_ueno | This could be one of BridgeInterfaceDriver method | 22:08 |
| markmcclain | nati_ueno: why is locality so important? | 22:08 |
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| nati_ueno | Ah It is needed for multi-host | 22:09 |
| nati_ueno | So IMO multi-host is one usecase of scheduling problem I noted in page 7 | 22:10 |
| danwent | we could potentially make this part of the "interface_driver" concept that exists already | 22:10 |
| danwent | nati_ueno: i really don't feel like multihost is a case of scheduling | 22:10 |
| danwent | what is the "unit" being scheduled? | 22:10 |
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| nati_ueno | danwent: Yes I know. So we should share difinitions | 22:11 |
| danwent | its not dhcp for a particular network/subnet | 22:11 |
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| danwent | as seems to be implied by all of the graphics | 22:11 |
| danwent | as in multi-host, dhcp for a single network is spread across all hosts with a VM on that network | 22:11 |
| danwent | so while I could see a use case where there is a DHCP scheduler in quantum, I don't see multi-host as one of those use cases. | 22:11 |
| nati_ueno | So I stop use the term "scheduling", | 22:12 |
| nati_ueno | I use network-selection in dhcp-agenet. | 22:13 |
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| nati_ueno | multi-host is one of network-selection usecase | 22:13 |
| danwent | who is selecting networks? | 22:13 |
| nati_ueno | DHCP-agent | 22:13 |
| salv-orlando | I'm not sure I follow | 22:14 |
| danwent | sign, ok, let's forget abotu naming for a bit, as its not really the issue anway | 22:14 |
| nati_ueno | DHCP-agent will select network using get_local_port_ids() | 22:14 |
| danwent | basically, each agent needs to figure out the set of subnets that are "active" on the local host, where a subnet is "active" on a host if there is a VM on that host with an IP in that subnet | 22:15 |
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| danwent | do we agree with that statement (even if we don't agree on terminology?) | 22:15 |
| nati_ueno | I agree | 22:15 |
| salv-orlando | I agree | 22:15 |
| salv-orlando | When I looked at those slides, the reason IMHO behind get_local_port_ids was for dhcp_agent to respond only to requests from VMs on the same host. But apparently it seems it's quite different. | 22:17 |
| markmcclain | I understand the statement, but I not sure I under why that it important | 22:17 |
| danwent | ok, and one way to find out the set of "active" subnets, would be to find out each "active" port, and then query for info about those ports to identify their subnet_ids. | 22:18 |
| markmcclain | right but if the tenant vms are scattered across multiple hosts you end up with lots of DHCPOFFERS | 22:19 |
| danwent | I think the root of the issue is that while with the OVS plugin, its trivial to find out what the set of local port-ids is (since they are an attribute of the port in the OVSDB), it may be harder to do this for linux bridge | 22:19 |
| danwent | markmcclain: actually, i think the idea is that you populate dnsmasq conf only with the mappings for VMs that are on the same host. | 22:19 |
| danwent | but i'm not here to defend multi-host… i think its pretty broken for other reasons | 22:20 |
| danwent | but some people find it useful, so we're going to try and support it :) | 22:20 |
| salv-orlando | danwent: I agree on the principle, though I too am not a huge fan of multi-host | 22:20 |
| danwent | i just don't want to contort the whole quantum architecture in order to support multi-host | 22:20 |
| salv-orlando | Actually instead of replicating what nova does, IMHO multi-host implementation for quantum should just avoid all those broadcasts to leave the virtual switches | 22:21 |
| danwent | ok, I have to run to a meeting soon | 22:21 |
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| danwent | actually, like right now. | 22:21 |
| danwent | but I still have concerns over a multi-host design. | 22:22 |
| danwent | will follow up on the blueprint page | 22:22 |
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| nati_ueno | OK let's continue in bp page and mailing list | 22:22 |
| salv-orlando | ok | 22:22 |
| markmcclain | ok | 22:23 |
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| nati_ueno | TTYL | 22:23 |
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