Thursday, 2012-05-31

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dhellmannhi, flacoste16:00
nijabahello dhellmann, flacoste16:00
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flacostehi dhellmann16:01
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flacostehi nijaba16:01
dhellmannhow's the event at enovance going nijaba & dachary?16:01
dacharydhellmann: awesome  :-)16:01
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dachary are the slides (most of them)16:01
* dhellmann is sad he missed out16:01
nijabadhellmann: it wa great. 120 attended.  full room16:02
dhellmannthat's good turn out!16:02
dacharydhellmann: next event you'll talk about ceilometer ?16:02
dhellmannany excuse to come to paris :-)16:02
nijabadachary: I already did a bit :)16:02
jd___#meetingname ceilometer16:02
openstackMeeting started Thu May 31 16:02:40 2012 UTC.  The chair is jd___. Information about MeetBot at
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.16:02
openstackThe meeting name has been set to 'ceilometer'16:02
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jd___#chair nijaba dachary16:03
openstackCurrent chairs: dachary jd___ nijaba16:03
jd___#topic actions from previous meetings16:03
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jd___#info jd___ and dhellmann opened a bunch of bugs on Launchpad to track things
jd___I don't think they were any other actions planned16:03
jd___but if someone wants to add something, please say so16:04
nijabaThanks for your great work on the testing framework, dhellmann & jd___16:04
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jd___thanks nijaba :)16:04
dhellmannthat caught me a little off guard, but I'm glad we have that going now16:04
jd___dhellmann: that's part of the fun ;)16:04
nijabaI am very happy that we are laying the ground nicely for a stable and reliable project16:05
dhellmannjd___, I told my manager "If it was easy, anyone could do it."16:05
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dhellmannI have a demo later this afternoon showing ceilometer as part of DreamHost's alpha 1 milestone. I appreciate the help everyone has provided in making it possible to do that. :-)16:05
nijabadhellmann: amazing!16:06
dhellmannit's a small, internal demo, as part of our sprint process, but a HUGE milestone for me (and us)16:06
jd___you'll have to tell the result ;)16:07
dhellmannI'll definitely let you know how it goes16:07
dhellmann#action dhellmann to report on outcome of demo at DreamHost16:07
jd___#action dhellmann to report on outcome of demo at DreamHost16:07
jd___(not sure it works otherwise)16:08
jd___ok so let's move on16:08
jd___#topic API message format16:08
*** openstack changes topic to "API message format"16:08
dhellmannI have a gist prepared with the existing message format:
dhellmannthis is based on the work done so far, and is how the agent sends messages to the collector16:08
dhellmannit's there for reference, but there are definitely things I want to change about it before we call it "done"16:09
nijabadhellmann: based on the ml discussion, I think we should add something to cast the meter (delta, gauge,...)16:09
dhellmannthe first being the RPC wrapper, since the metering messages feel a lot more like notifications than RPC calls16:09
dhellmannyes, good point16:09
dhellmannI'll open a ticket for that16:10
flacostenijaba, dhellmann: isn't it part of the event_type field?16:10
flacoste 'event_type': '%s.%s' % (cfg.CONF.metering_topic,16:10
flacoste               counter.type)16:10
dhellmannheh, there's already a bug open for that16:10
nijabadhellmann: should we also have something that identify the emiting host, or is this part of the envelope?16:10
dhellmannthe existing counter.type value is the id or name from the table in the wiki16:11
dhellmannbug #1006425 talks about changing that16:11
uvirtbotLaunchpad bug 1006425 in ceilometer "add counter type field" [Undecided,New]
dhellmannhey, nice bot action!16:11
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dhellmannnijaba, yes, I think the emitting host is in there somewhere as part of the event metadata, but we should add an explicit field16:12
dhellmannsee bug #100698916:12
uvirtbotLaunchpad bug 1006989 in ceilometer "add emitting host field to meter messages" [Undecided,New]
nijabadhellmann: nice.  we can also add something on the collector that does anti spoofing then16:12
jd___we can rely on signature for that if we have a key for each host16:13
dhellmannsee bug #100699016:13
uvirtbotLaunchpad bug 1006990 in ceilometer "the collector should verify the signature of incoming metering data" [Undecided,New]
dhellmannjd___ the way the signature works now is a single shared secret value. do you mean to have a separate secret for each host?16:14
jd___dhellmann: that would be the best way to do anti spoofing on a per-host basis if we want that16:14
nijabadhellmann: I will add a comment on the bug to check host field with envelop as well, as private keys can be eventually stolen16:14
jd___I don't think I want that but maybe nijaba wants16:14
dhellmannok, I can see that16:15
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nijaba#action nijaba to comment on bug 1006990 for anti spoofing of messages16:15
uvirtbotLaunchpad bug 1006990 in ceilometer "the collector should verify the signature of incoming metering data" [Undecided,New]
dhellmannwe will need to figure out how to share those configuration values with the collector and the agent, but it's possible16:15
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jd___maybe for now a unique key for everyone is enough16:16
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dhellmannI think that satisfies my needs, but I'm sure we can implement it in a way that hosts can have their own keys, too16:16
nijabaI would vote for a key per agent16:17
nijabato maintain indepence of agents16:17
zykes-ceilometer ?16:17
dhellmannnijaba, do you want to open a ticket or blueprint to work out how to implement it?16:17
nijabadhellmann: I take the action16:17
jd___zykes-: yes16:17
nijaba#action nijaba to define a configuration mechanism on a per agent basis16:18
jd___dhellmann: so event_type will be removed IIUC ?16:19
zykes-will there be a basic folsom integration?16:19
nijabazykes-: we are targeting folsom for 1st delivery16:20
dhellmannjd___ we have some redundant information now, with event_type appearing as a top-level item and as part of the metadata added by the instance counter. so one copy can go away16:20
jd___dhellmann: that's what I though, ok16:21
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jd___if it's only needed by the rpc mechanism, it'll go away16:21
dhellmannwell, it's not needed by the rpc mechanism. I added it because tools/ was expecting to find it :-)16:21
jd___oh ok16:22
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dhellmannbut it can probably still go away16:22
jd___yeah :)16:22
dhellmannthe current format is a bit of a mixup of notification and rpc16:22
dhellmannI expected to clean it up when we get to the point of actually storing the data16:22
jd___fair enough16:23
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dhellmannsee bug #100699516:23
uvirtbotLaunchpad bug 1006995 in ceilometer "clean up redundant metering message fields" [Undecided,New]
nijabaare we still in agreement that these messages will go through a separate queue from the nova queue, while still using the openstack common queue functions?16:24
jd___I think so16:25
dhellmannI think so. Each message is going to 2 queues right now: "metering" and "metering.type" where type is "instance", "disk", "floatingip", etc.16:25
dhellmannI want to keep the names, but use something closer to the nofiy() function instead of cast() to send the messages16:26
dhellmannthat will mean creating a new type of consumer in the rpc library, though :-/16:26
nijabawould that be a problem?16:27
dhellmannno, I just need to do the work.16:27
dhellmannthey are pretty close to having that code ready to move out of nova into openstack-common, so it might make sense to wait a iittle while16:27
nijabadhellmann: let's hope that flacoste will soon have a team to supplement you and jd___ here16:27
dhellmannunless they're not as close as I think16:28
flacostenijaba: we are still a few weeks away from that unfortunately :-(16:28
dhellmannit would be good to have a few more hands :-)16:28
jd___anyway we already need the consumer type dhellmann, if it can be compatible with nova notifications16:28
dhellmannah, well, we'll still have plenty of work for them to do then16:28
nijabaflacoste: should we send CVs to you?16:28
dhellmannexactly, jd___16:28
flacostenijaba: please do actually!16:29
nijabaI will!16:29
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dhellmannis there any other feedback on the message format or contents?16:31
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jd___not from my point16:32
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nijabanor here16:32
flacosteneither here16:33
dhellmanngood. I'm sure we will find other things to change as we go along, but this should work for now.16:33
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dhellmannnext week is the "storage backend" discussion, right?16:34
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nijabadhellmann: yes16:35
nijabashould we mark your proposal as agreed, pending the discussed changes?16:35
dhellmannI am looking forward to reading the proposals for that on the mailing list. :-)16:35
dhellmannif everyone is comfortable with it, I am16:36
nijabadhellmann: same here.  Sound like a mongoDB vs Riak vs ... flamewar to start16:36
nijabajd___: vote maybe?16:36
nijabajust to check?16:36
flacostewhat, nobody is considering PostgreSQL? :-)16:36
dhellmannnijaba, I think we'll probably have another plugin point for storage backends :-)16:37
nijabadhellmann: true, but not SQLAlchemy!16:37
dhellmannI will leave that up to the implementer. :-)16:38
jd___if you want :)16:38
nijabaso, should we vote on the API message format or just mark it as agreed?16:40
dhellmannlet's do the vote and make it official16:41
nijabajd___: go ahead and open the vote then :)16:41
jd___anything else?16:42
dhellmannnot from me16:43
nijabanor here (apart from the vote)16:43
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nijabaok, I'll open the vote then16:45
jd___go ahead16:45
nijaba#vote agreement on the proposal from dhellmann for API messaging format, pending the 2 modifications discussed during the meeting16:45
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nijabaok, I guess we can mark this as agreed then16:46
nijaba#agreed on the proposal from dhellmann for API messaging format, pending the 2 modifications discussed during the meeting16:47
dhellmannif we're done, it's time for some lunch here16:48
nijaba#topic other topics16:49
*** openstack changes topic to "other topics"16:49
flacostedhellmann: +116:49
nijabaok, I guess some bellys need to get filled :)16:49
nijababellies maybe?16:50
nijabaanyway... thanks everyone!16:50
dacharynijaba: thanks !16:50
dacharyand thanks everyone :-)16:50
*** openstack changes topic to "OpenStack meeting channel. See for schedule and for meeting logs"16:50
openstackMeeting ended Thu May 31 16:50:36 2012 UTC.  Information about MeetBot at . (v 0.1.4)16:50
openstackMinutes (text):
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davidkranzQA meeting?17:05
davidkranzIs Jay here?17:06
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davidkranzI guess not. Does any one else know the status of tempest gating?17:08
dwallecknope, not involved with that17:09
rohit-kme neither, but jenkins build history doesnt look very stable at first glance17:10
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davidkranzrohit-k: What is the URL for that?17:10
davidkranzI see.17:11
rohit-k'nodes getting offline' now and then17:12
davidkranzI think we are going to need another rotating captain to monitor the nightly tempest run once it is working.17:12
Ravikumar_hp++ looks like17:12
davidkranzJoseSwiftQA: What's up with the swift tests?17:13
JoseSwiftQAOther than final pep8 checks, it's code complete.  I want to run it through some more tests before I submit.17:13
davidkranzJoseSwiftQA: OK, amy thoughts on when that will be?17:14
JoseSwiftQAMy devstack instance blew up over the weekend, and i stubbornly tried to fix it instead of rebuilding it :D17:14
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JoseSwiftQAI can get the last testing done today and hopefully have it submitted today as well.17:14
davidkranzJoseSwiftQA: Great.17:14
Ravikumar_hplooks like code submitted Gerrit review - expired17:14
JoseSwiftQAI'll have to add another test for the container list method, but that won't take any time.17:14
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JoseSwiftQAYeah, Jay emailed me about it and had me un-abandon it17:15
davidkranzI saw an (unused) 'from import SkipTest' in one of the newer test files that does not work with Python 2.6. It can be removed but are we trying to support 2.6?17:16
davidkranzThe other files use nose.SkipTest17:16
JoseSwiftQAcoolbeans, if i haven't cleaned it up I will.17:17
rohit-krather unittest2.skipTest?17:17
davidkranzrohit-k: Yes. It was aliased to unittest17:17
rohit-kmeaning we're standardised on the unittest implementation right?17:18
davidkranzrohit-k: Not sure what you mean. I was wondering whether we are requiring code to work with 2.6.17:19
davidkranzThe file was test_volumes_get.py17:19
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rohit-kdavidkranz: oh ok17:19
davidkranzdwalleck: Daryl, you  put out two issues a little while ago. You want to start that?17:20
dwalleckWhile doing code reviews the last few days, I've really noticed that's we're accomplishing the same task in different areas of the code17:21
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dwalleckFor example, how we expect exceptions and how we cleanup resources17:22
dwalleckFor clarity's sake, it would be nice if we were consistent17:22
dwalleckSo for example....for testing for asserts, we use try/except, assertRaises, and the expect exception decarator17:23
rohit-kdwalleck: For checking exceptions, how about using try: self.assertRaises() except:"failure message")17:23
dwalleckCould we just decide on one method and (unless circumstances deem it necessary) stick with that?17:23
dwalleckrohit-k: I don't follow. Why would we need a try/except around assertRaises?17:24
rohit-kdwalleck: that would allow one to throw a failure message with the failed status17:24
dwalleckrohit-k: You can add a failure message as an extra param...17:25
davidkranzI like assertRaises. It minimizes boilerplate code.17:25
dwalleckWe should really be doing that everywhere, it's just gotten away from us17:25
rohit-kdoes assertRaises accept a msg argument?17:26
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dwalleckrohit-k: it should. That's the standard pattern for python unittest17:27
dwalleckI'm not sure why that assert would be different17:27
rohit-kAll the assert methods (except assertRaises(), assertRaisesRegexp()) accept a msg argument that, if specified, is used as the error message on failure (see also longMessage).17:27
dwalleckHuh, I see that too...that's bizzare17:28
rohit-k yes17:28
dwalleckHmm....well they're odd. I'd vote for writing a util method to encapsulate the logic you just mentioned17:29
dwalleckThat way we get all of the functionality and avoid any extra boilerplate code17:29
davidkranzWe could put it as a method in BaseComputeTest17:30
dwalleckdavidkranz: ++17:30
donaldngo_hpdoes this have to be specific to compute?17:31
rohit-kwhy BaseComputeTest? ideally it should be available to all api test17:31
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donaldngo_hpshould be BaseTest17:31
dwalleckTrue, perhaps even a generic TempestTestCase class instead (that each base class can inherit from?)\17:31
davidkranzYeah, I guess there should really be another class above BaseComputeTest17:31
rohit-kwe don't have a TempestTestCase base class, that would call for changes in a lot of files17:32
rohit-kthought it's the right approach17:32
davidkranzThe only change would be in the inheritance clause and files would not have to be changed to use the new class until their code was changed to use the new method.17:33
rohit-kdavidkranz: true17:34
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davidkranzActually I think only a few files would be changed. The tests would still inherit from the same existing BaseComputeTest, etc.17:34
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davidkranzSo I think we are in agreement that there should be a new class defining at least a wrapper for assertRaises and that we will use this new method for handling expected exceptions.17:36
davidkranzAbout resource allocation. I have advocated that resource-allocating methods keep track of the resources in their classes and have a method to clean them up.17:37
davidkranzThere would also be a keyword argument to the creation calls that would say not do do this in case the test needs to manually manage the resources for that test.17:38
dwalleckdavidkranz: I would have to see an implementation. I just want to make sure we're not doing too much behind the scenes magic17:39
rohit-kdavidkranz: that would help, for example, list servers and list images setUp 3 resources as a class Fixture17:39
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rohit-ksome test methods require no resoureces at all17:39
rohit-klike I want to check for a blank list17:39
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dwalleckThere already is an addCleanup method built into the unittest class17:40
davidkranzdwalleck: I agree. It is like garbage collection instead of malloc/free. You have to be careful with non-virtualized resources.17:40
rohit-kdwallkeck++ I love that method17:40
davidkranzdwalleck: I will make a proposal.17:41
rohit-kso tests can add their own cleanup logic to the tearDown() code17:41
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davidkranzNote this method is new in 2.7 so we really need to decide if we are supporting 2.6.17:43 that case, that might be an easy17:43
dwallecknix what I just said. That makes no sense. Haven't slept enough :)17:43
davidkranzI'm fine with dropping 2.6 but I don't think OpenStack as a whole seems ready to do that.17:44
dwalleckWhat I was trying to say is that perhaps we can do the same thing as we are doing for assertRaises. Having a default behavior for this in the base test class is also fine17:44
rohit-kI think nova's unit test framework does something similar17:45
rohit-kdwalleck: we should be having a BaseTest class I think now17:47
dwalleck++. We just have to add a way to register resources and we're set17:48
rohit-kgoing forward with Jay's refactoring branch, it might be very useful17:48
rohit-kwhat do you think?17:51
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davidkranzThat seems OK. We need to modify the resource creators.17:52
davidkranzMy thought was that the resources are accumulated in the client class because only it knows how to free them17:53
davidkranzThat is, the class with the allocation method is the one that knows how to free it.17:54
rohit-kdavidkranz: you mean add the resource cleanup code per client?17:55
davidkranzYes. Is there another way?17:55
rohit-knot sure why I would want to see cleanups in the client classes17:56
dwalleckdavidkranz: If we ever move back towards using objects instead of just raw json for entities in Tempest, an entity would know to delete itself (which would be clean)17:56
davidkranzdwalleck: True.17:57
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davidkranzdwalleck: But the client would still have to collect the objects.17:58
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davidkranzI think we are about out of time.17:58
dwalleckby the way, first round of multiprocessor configs are up for review:
dwalleckWill be pushing them in batches throughout the week18:00
davidkranzdwalleck: How do you decide which classes need this attribute?18:00
dwalleckdavidkranz: every class does. The attribs tell the class how to execute when the multiprocess plugin is used18:01
dwalleckSome test classes may need to be refactored because they were not designed to be executed concurrently18:02
davidkranzOK, so you just changed the ones that didn't?18:02
dwalleckdavidkranz: Not yet. Every test class is going to need these vars. For the ones that obviously won't work as is, I've passed over them for now18:03
davidkranzdwalleck: OK.18:03
dwalleckDebugging these in smaller batches is far easier than configuring them all at the same time18:03
davidkranzSee you all next week. I guess no one officially started the meeting so there won't be a log.18:03
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n0anoanyone here for orchestration?20:05
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