Thursday, 2012-06-28

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jd___hi16:00
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dhellmannhi16:00
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jd___#startmeeting16:01
jd___#meetingname ceilometer16:01
jd___#link https://lists.launchpad.net/openstack/msg13745.html16:01
openstackMeeting started Thu Jun 28 16:01:32 2012 UTC.  The chair is jd___. Information about MeetBot at http://wiki.debian.org/MeetBot.16:01
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.16:01
openstackThe meeting name has been set to 'ceilometer'16:01
jd___#topic dachary: talk to Dragon about SystemData / ceilometer and try to create cooperation16:02
*** openstack changes topic to "dachary: talk to Dragon about SystemData / ceilometer and try to create cooperation"16:02
jd___not sure he's here actually16:02
jd___#topic dhellmann: talk to Quantum devs about integration with ceilometer16:02
*** openstack changes topic to "dhellmann: talk to Quantum devs about integration with ceilometer"16:02
jd___I saw you did that dhellmann16:02
dhellmannI sent email to the list to start that discussion16:02
dhellmannhttps://lists.launchpad.net/openstack/msg13753.html16:03
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jd___nothing else to add from anybody?16:04
flacoste no16:05
dhellmannit's going to take a bunch of work to integrate with quantum, but we might be able to get most of what we want from asking libvirt about traffic16:05
dhellmannwe won't get the create/delete events, but they don't have notification for those yet anyway16:05
jd___maybe but libvirt isn't going to take us far neither16:05
* dhellmann apologizes for the delayed response. internet is down at the office, so I'm at a restaurant16:05
dhellmannwe may be able to get traffic stats, but I don't know how useful they will be. they won't differentiate between "public" and "private" traffic16:06
jd___indeed16:06
DanD_we have to use IP addresses to differentiate billable vs. non-billable traffic16:06
DanD_a bit of a hack but it works16:07
jd___ok, I'll move on next topic since this not related directly to this action anyway16:07
dhellmannright, at dreamhost we're going to have our firewall VMs collect the traffic data and publish metering events16:07
jd___DanD_: differentiate is doable, capture/count for each is another problem :)16:07
jd___#topic dhellmann and nijaba to join the cinder meeting wed at 16UTC16:08
*** openstack changes topic to "dhellmann and nijaba to join the cinder meeting wed at 16UTC"16:08
jd___I think nijaba is away, so dhellmann again :)16:08
dhellmannI was late but nijaba was there the whole time16:08
dhellmannwe have a similar situation: they don't have RPC or notifications, yet16:08
dhellmannso we discussed creating an admin API that ceilometer could poll16:08
dhellmannI think that's going to mean we want another type of agent daemon that runs somewhere other than the compute nodes (probably on the same host as the collector)16:09
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dhellmannthat sort of ties into the message I sent to the mailing list this morning, but we can discuss that at the end if we have time16:10
dhellmannthat's all I have16:10
jd___ok fine!16:10
jd___#topic jd_: check that openstack-ci runs the tests for Essex16:11
*** openstack changes topic to "jd_: check that openstack-ci runs the tests for Essex"16:11
jd___I did check that with dhellmann16:11
dhellmannare those tests passing now?16:11
jd___yes16:11
jd___and AFAIK they are running automagically on review requests16:11
dhellmannok, we should turn the gates back on if they pass16:11
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jd___I think it's on, isn't it?16:12
dhellmannI turned them on for patch uploads, but not for gating after approval16:12
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jd___ok16:14
dhellmannthey are listed in separate places in the zuul config file16:14
dhellmannwe can talk about that by email, though16:15
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dhellmannwhat else do we have today?16:15
jd___#topic jd_: add some tests on daemon launching16:15
*** openstack changes topic to "jd_: add some tests on daemon launching"16:15
dhellmannah, yeah, that would be very useful16:15
jd___did that to some extents, now it works fine on Essex16:15
jd___I think it used to fail before16:15
jd___#topic nijaba: to prime the doc on plugins16:16
*** openstack changes topic to "nijaba: to prime the doc on plugins"16:16
jd___well, nijaba did it we saw it16:16
* dhellmann thinks he has about 10 minutes before the restaurant asks him to clear out and make room for the lunch crowd16:16
dhellmannyes, and we had some updates from annegentle, too16:16
jd___should be16:16
jd___https://github.com/stackforge/ceilometer/commit/1b7b651d860a8fe38d523f67cb229302159d087216:16
jd___dhellmann: ok I'll hurry :)16:17
jd___#topic nijaba: to question best method to authenticate admin client calls from ceilometer to cinder (and other projects)16:17
jd___16:17
*** openstack changes topic to "nijaba: to question best method to authenticate admin client calls from ceilometer to cinder (and other projects)"16:17
jd___something to say about that dhellmann ?16:17
flacostei think that's also done16:17
jd___flacoste: ok, thanks :)16:17
dhellmannwe did discuss it, but I'm not sure it was resolved16:17
dhellmannit's in process16:17
flacostethis was the suggestion to have some API calls restricted to the local ip16:17
flacosteright16:17
flacostei don't recall a reply from cinder there16:17
dhellmannnova and some of the other projects have "admin" APIs, so we should try to mimic what they did16:18
flacostedid you discuss it in your meeting?16:18
DanD_you might want to consider that the metering system will potentially be distributed to scale, this will require remote communication16:18
DanD_ours already consists of multiple systems16:18
dhellmannyeah, we won't want to restrict to local IP or force any particular configuration16:18
dhellmannalthough if it's just an agent, that's not as bad16:18
dhellmannflacoste, we did discuss it but I don't think we resolved it16:19
dhellmannthere were a couple of ideas and we basically said "yes, we can figure this out"16:19
jd___which is probably true :)16:19
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dhellmannI hope so :-)16:20
dhellmannanything else on the agenda for today?16:21
jd___#topic Discuss and vote the incubation application proposal to be submitted to PPB16:21
*** openstack changes topic to "Discuss and vote the incubation application proposal to be submitted to PPB"16:21
jd___not sure we should vote this today, but we can discuss16:21
dhellmannI haven't had a chance to read that yet. Is nijaba here? I wouldn't want to vote without him and Loic present.16:21
dhellmannjd___ do you have the link to that handy?16:21
jd___http://wiki.openstack.org/Projects/IncubatorApplicationCeilometer16:22
jd___no I think they're both away so we should reschedule the vote16:22
flacostefwiw, that looked fine to me16:22
dhellmannand probably the discussion, since if we have questions there won't be anyone to answer :-)16:22
jd___indeed16:23
jd___#topic Open discussion16:23
*** openstack changes topic to "Open discussion"16:23
jd___(if dhellmann didn't start cooking yet)16:23
dhellmannI'm still here16:24
jd___any point we want to discuss now rather than by email?16:24
dhellmannthe only thing I had was the API change I proposed on the list. I saw jd___'s response but have been offline for 3-4 hours so couldn't reply16:24
dhellmannemail is probably better for that discussion anyway16:24
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jd___yeah, that's fine with me too16:25
dhellmannok16:25
dhellmannoh, I've made some good progress with the mongodb driver. I should have something to put up for review early next week16:25
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jd___dhellmann: great, your finally went for mongo?16:25
jd___-r16:25
dhellmannI'm working out some tricky queries right now16:26
dhellmannyeah, the ops team looked at the calculator nijaba put together and decided it wasn't so much data that they were worried about mongo's performance16:26
jd___ok16:26
dhellmannat least not for our beta16:26
dhellmannif they end up changing their mind, I will have to write another driver :-)16:26
jd___:-)16:27
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jd___anything else?16:27
dhellmannone thing that came up is the API we have discussed before may need to expand so that when you ask for sums of values for a resource, you get multiple answers, one per unique metadata set.16:27
dhellmannI will write more about that on the mailing list16:27
jd___dhellmann: ok16:28
dhellmannthat's all I had for today16:29
jd___I don't have more for now neither16:29
jd___#endmeeting16:29
*** 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"16:29
openstackMeeting ended Thu Jun 28 16:29:46 2012 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)16:29
openstackMinutes:        http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-16.01.html16:29
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-16.01.txt16:29
openstackLog:            http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-16.01.log.html16:29
dhellmannthanks everyone!16:29
jd___thanks guys!16:30
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flacostethanks!16:30
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jaypipes#startmeeting17:00
openstackMeeting started Thu Jun 28 17:00:11 2012 UTC.  The chair is jaypipes. Information about MeetBot at http://wiki.debian.org/MeetBot.17:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.17:00
jaypipesgood afternoon QA team17:00
davidkranzHi there.17:00
jaypipesrohitk: around?17:00
jaypipesdavidkranz: afternoon!17:00
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* jaypipes looks for some Rackers...17:01
rohitkhi!17:01
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jaypipesrohitk: hi! :) so, I've taken a first look at your proposed whitebox stuff. overall, looks quite good :)17:02
rohitkthanks Jay :)17:02
jaypipesrohitk: if you could do a code review on this: https://review.openstack.org/#/c/8812/17:02
jaypipesrohitk: that would be appreciated. you, too, davidkranz, although you already reviewed a prior patchset17:03
rohitkjaypipes: yes, will take a look for sure17:03
jaypipesthx! :)17:03
davidkranzjaypipes: I already put some comment on your last patch.17:03
davidkranzjaypipes: Other than the little bugs i mentioned, is it nearing being ready to go?17:04
jaypipesdavidkranz: yep.17:04
davidkranzjaypipes: Great!17:04
davidkranzjaypipes: Are there any remaining faliures other than that keystone issue?17:04
jaypipesdavidkranz: still not possible to run in isolation (due to a bug in the multiprocess plugin)17:04
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jaypipesdavidkranz: but all tests do run in isolation now, and all keystone creds are being cleaned up properly.17:05
davidkranzjaypipes: That's too bad. The serialization of server creation on a server is also a problem for us but Vishy doesn't see it as being very important.17:05
davidkranzjaypipes: He suggested some possiblel patches but they didn't really do anything.17:05
jaypipesdavidkranz: well, I've filed a bug with the nosetests folks on the plugin error17:05
jaypipesdavidkranz: if there is no action on that bug by end of today, I will send a post to their mailing list17:06
davidkranzjaypipes: Sound's good.17:06
jaypipesdavidkranz: re: server creation serialization, are you referring to a bug in Nova, or a bug in Tempest?17:06
jaypipesdavidkranz: or even a bug in libvirt/KVM?17:06
davidkranzjaypipes: https://bugs.launchpad.net/nova/+bug/1016633, which Thierrey marked as wishlist. I don't agree.17:07
uvirtbotLaunchpad bug 1016633 in nova "Bad performance problem with nova.virt.firewall" [Wishlist,Confirmed]17:07
jaypipesdavidkranz: one sec, lemme re-read that17:08
vishydavidkranz: did my second patch help at all?17:09
davidkranzvishy: No, the initial success was noise from variance. I ran it a bunch more times and the average wasn't any different than without it.17:09
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davidkranzvishy: I don't think this is a critical, must fix now issue but I also think it is not really wishlist.17:10
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vishydavidkranz: I'm not completely sure that it is the firewall code that is the culprit, but if it is, I would blame it on the multiple iptables saves and restore17:11
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jaypipesvishy: is that a particularly expensive call? iptables save/restore?17:11
vishymight be solved by updating iptables in a periodic task, but that is a pretty heavy refactor and opens up potential for security holes17:11
vishyjaypipes: I've noticed it be slow before yes.17:12
davidkranzvishy: I don't know much about this area but I'm sure you guys will be able to come up with something.17:12
vishydavidkranz, jaypipes: I don't really see it is a huge issue considering that multiple vms on the same server will always be slow due to image downloading etc.17:12
davidkranzvishy: Even if they are booting the same image?17:13
vishywe've even discussed serializing everything to eliminate race conditions17:13
davidkranzvishy: I thought images were cached.17:13
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vishydavidkranz: they are, but I think in normal cloud usage the cache hits will be relatively infrequent17:13
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davidkranzvishy: I am bring this up because we are actually working on some applications that want to spin up vms pretty fast, but it is not a public cloud use case.17:14
vishydavidkranz: we need much better profiling of the launch to determine exactly why it is slow17:14
davidkranzvishy: Of course.17:15
davidkranzvishy: I just think a lot of people are working on cases that are not random users on a public cloud.17:15
vishydavidkranz: The distance in the log is not super useful, because it could be yielding to another greenthread during that call17:15
jaypipesdavidkranz: we have similar use cases -- the tenant wants to spin up dozens of VMs (same flavor/image) at once17:15
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jaypipesvishy: by "much better profiling", is this something davidkranz or I can work on? do you refer to more debug statements in the logs or something more invasive?17:16
vishydavidkranz: anyway I will continue to try to come up with ways to speed it up.17:16
davidkranzvishy: I could try to do this. It is the kind of thing I have a lot of experience with but not so much with the nova code.17:17
vishyjaypipes: It would be nice to do automatic profiling somehow and find out what the slow calls are17:17
davidkranzvishy: OK, thanks.17:17
jaypipesvishy: agreed, though doing so in something like cachegrind only shows a single process. where we are seeing the issues is when multiple processes (and greenthreads within processes) are in use. :(17:18
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jaypipesin other news, my pug's snore volume just went through the roof...17:18
rohitkLoL17:18
jaypipestoo hot for her today... better turn up the air con.17:19
davidkranzjaypipes: I know the issue. I have a silent standard poodle but was taking care of a beagle for the weekend...17:19
jaypipesdavidkranz: well, regardless, there's not going to be any quick fixes for this kind of thing.17:19
jaypipesdavidkranz: :)17:19
davidkranzjaypipes: Do you think it is worth me spending any time trying to find out where the time is going?17:20
jaypipesdavidkranz: so I think we should just press on, bringing as much data to vishy  and others like comstud as we can by doing more and more repeatable testing17:20
jaypipesdavidkranz: I think it is worth the time putting debug log statements into piece of Nova, yes...17:20
jaypipesdavidkranz: that seems to me to be an easy win.17:20
davidkranzjaypipes: Trying my test with 16 or 32 servers might reveal something.17:20
davidkranzjaypipes: OK, I will give it a try.17:20
jaypipesdavidkranz: and that would allow us at least to begin narrowing down for vishy where the problems might be lying17:21
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davidkranzjaypipes: Yeah. Is there an easy way to restart nova in devstack without rerunning stack.sh?17:21
jaypipesdavidkranz: what would be super is if we can marry test runs with something like Tach so we can get a better/easier view on the timings17:21
davidkranzjaypipes: After making a code change.17:21
davidkranzjaypipes: I have never used Tach.17:22
jaypipesdavidkranz: you can always screen -x, go to the nova-compute/api/scheduler/network nodes and Ctrl-C, then hit up and Enter17:22
jaypipesdavidkranz: but I have a script that resets it all and reruns stack.sh... I find it easier.17:22
jaypipesand more consistent :)17:22
jaypipesdavidkranz: remember to set SCREEN_LOG_DIR17:23
davidkranzjaypipes: Yeah, that's what I have been doing.17:23
jaypipesk17:23
jaypipesdavidkranz: well, it would be super if we could get my and rohitk's branches in today. that would free up a lot of the other things, because both patches touch a lot of files.17:23
davidkranzjaypipes: I have been using syslog due to having trouble with SCREEN_LOG_DIR. I might have a question about that later.17:23
jaypipessure17:24
davidkranzjaypipes: I basically gave the go-ahead for your submission except for the little bugs. So I;m ready to go when they are fixed.17:24
davidkranzjaypipes: I will look at rohitk's in a little bit.17:25
jaypipesdavidkranz: k. thx. I'll wait to get rohitk's views and then will look at approving it.17:25
rohitkjaypipes: we've been doing a lot of heavy duty refactoring to the core tempest files17:25
jaypipeswoudl be good to get daryl too, but no idea where he is17:25
rohitkand this should reduce over time17:25
rohitkIMO17:25
jaypipesrohitk: indeed. that's why I'm eager to get them in so merge hell isn't that bad ;)17:25
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davidkranzjaypipes: Your's should probably go first.17:25
rohitkdavidkranz: ++17:26
jaypipesk.17:26
jaypipesalright, let's end the meeting then unless anyone has objections?17:26
rohitkjaypipes: that should speed up the Fuzz test efforts too17:26
davidkranzNo objection. But it would be nice to know what is going on with the swift tests.17:27
davidkranzBut no one who knows is here :(17:27
jaypipesright...17:28
jaypipesI'll email Jose and Daryl17:28
jaypipesok dokey, bye guys17:28
jaypipes#endmeeting17:29
*** 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"17:29
davidkranzjaypipes: k. Talk to you later...17:29
openstackMeeting ended Thu Jun 28 17:29:00 2012 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)17:29
openstackMinutes:        http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-17.00.html17:29
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-17.00.txt17:29
rohitkBye17:29
openstackLog:            http://eavesdrop.openstack.org/meetings/openstack-meeting/2012/openstack-meeting.2012-06-28-17.00.log.html17:29
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