Friday, 2014-06-27

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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Increase the logging of the WBE response/send activities  https://review.openstack.org/10295900:07
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Automatically expire worker information  https://review.openstack.org/10298000:15
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Extract the state changes from the ensure storage method  https://review.openstack.org/9740300:27
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Increase the logging of the WBE response/send activities  https://review.openstack.org/10295901:15
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Automatically expire worker information  https://review.openstack.org/10298001:15
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openstackgerritDavid Stanek proposed a change to openstack/oslo.config: Refactors _Namespace to make the code clearer  https://review.openstack.org/9983101:21
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openstackgerritMark McLoughlin proposed a change to openstack/oslo.messaging: Fix slow notification listener tests  https://review.openstack.org/10302405:57
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openstackgerritOpenStack Proposal Bot proposed a change to openstack/oslo.db: Updated from global requirements  https://review.openstack.org/10213206:36
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openstackgerritAbhijeet Malawade proposed a change to openstack/oslo-incubator: rpc module cleanup issue  https://review.openstack.org/10304908:09
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openstackgerritMax Lobur proposed a change to openstack/oslo.db: Add __contains__ to ModelBase to fully behave like a dict  https://review.openstack.org/10200808:54
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boris-42jd__ hi09:49
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jd__hi boris-4210:25
boris-42jd__ how are you?)10:25
jd__boris-42: good and you?10:25
boris-42jd__ as well good thnaks=)10:25
boris-42jd__  I would like to add my lib to global requirements https://review.openstack.org/#/c/102362/ could you take a look pls?)10:26
boris-42jd__ it's profiler (we spoke about it, while ago)10:26
jd__I do remember10:27
jd__sure I'll take a look10:27
boris-42jd__ yep but now we addressed all issues=)10:27
boris-42jd__ plus all issues after summit session=)10:27
jd__cool10:28
boris-42jd__ thanks10:28
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openstackgerritLonggeek proposed a change to openstack-dev/cookiecutter: Bump minimum pbr version to 0.6  https://review.openstack.org/10308510:49
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jokke_ok11:30
jokke_sorry wrong screen again11:30
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dhellmannmorganfainberg: that makes sense, would you open a bug for it?12:09
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openstackgerritNataliia Uvarova proposed a change to openstack/oslo-incubator: Enable test_gettext for Python 3  https://review.openstack.org/10313514:01
openstackgerritGordon Sim proposed a change to openstack/oslo.messaging: Add driver independent functional tests of the messaging API  https://review.openstack.org/8416414:17
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openstackgerritGordon Sim proposed a change to openstack/oslo.messaging: Add driver independent functional tests of the messaging API  https://review.openstack.org/8416414:28
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rpodolyakaHey, oslo team! Unfortunately neither me, nor viktors can't make it to oslo meeting later today. I hope i159 will be there to answer any olso.db related questions you might have. We'll check meeting minutes tomorrow, so don't hesitate to leave us questions, links or action items.14:47
dhellmannthanks, rpodolyaka14:47
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i159rpodolyaka dhellmann viktors: I'm going to be at the meeting, and I'll answer all questions I can.14:50
dhellmannthanks, i15914:50
rpodolyakai159: thanks!14:51
openstackgerritgaryk proposed a change to openstack/oslo.vmware: Translations: make use of _LE, _LI and _LW  https://review.openstack.org/10182114:53
openstackgerritmouad benchchaoui proposed a change to openstack/oslo.messaging: Fix reconnect race condition with RabbitMQ cluster  https://review.openstack.org/10315714:54
openstackgerritgaryk proposed a change to openstack/oslo.vmware: Translations: make use of _LE, _LI and _LW  https://review.openstack.org/10182115:01
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dhellmannmeeting in #openstack-meeting-alt in ~5 min15:55
mriedemdoes an IntOpt with no default value default to None?16:01
mriedemso CONF.option would be present and == None?16:01
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mriedemnvm16:07
openstackgerritAbhijeet Malawade proposed a change to openstack/oslo.messaging: Close listener connection after stopping rpcserver  https://review.openstack.org/10318616:16
mriedembnemec: when your meeting is over, wondering if i can just do default=processutils.get_worker_count() in the IntOpt definition for 'workers' here, or if that's somehow bad16:22
mriedemhttps://review.openstack.org/#/c/102665/3/glance/common/wsgi.py16:22
mriedemi.e. doing that loading at module scope16:23
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bnemecmriedem: I have to run to lunch right after the meeting, but I think that should be okay.  It's not like the processor count is going to change. :-)16:25
mriedembnemec: ok will try it thanks16:30
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morganfainbergdhellmann, zzzeek, i keep meaning to come back to the dogpile spec. ugh. sorry :(17:00
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zzzeekmorganfainberg: not a problem at all im pretty much overwhelmed17:01
morganfainbergdhellmann, zzzeek, i really want to get to work on it. so. over the weekend new version and i'll add in the comments about what i'll propose to dogpile.cache upstream as part of it17:01
zzzeekok17:01
morganfainbergzzzeek, based on your comments.17:01
morganfainberg:)17:01
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morganfainbergzzzeek, so, really quickly, if I'm looking to extract a single element from a series of rows, using session.query(ObjectModel) isn't the most efficient way, because i'll be throwing out the object later right?17:02
zzzeekyou mean extracing a column right17:03
morganfainbergzzzeek, erm s/later/out of scope17:03
morganfainbergzzzeek, yeah extracting on column17:03
zzzeekyeah so right now, the simplest is query(ObjectModel.x, ObjectModel.y)17:03
zzzeekthat improves performance in many dimensions17:03
morganfainbergzzzeek, nice17:03
morganfainbergexactly what i was looking for17:04
morganfainbergbecause https://review.openstack.org/#/c/86025/10/keystone/assignment/backends/sql.py (example)17:04
zzzeekoh yeah, do that pattern as muc as possible17:04
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zzzeekbut there are more variants of htat as well ive been coming up with17:04
morganfainbergis way better than the fetch each one seperately17:04
morganfainbergbut, still does a lot of bookeeping to grab "id"17:04
zzzeekmorganfainberg: if you are loading data and you A. dont need to do any unit of work flushing and B. dont need to use any relationships, you shoudl be fetching individual columns in some way17:05
morganfainbergzzzeek, ++17:05
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morganfainbergzzzeek, awesome.17:05
zzzeekthere is a new construct called a Bundle that can package up series of columns into “objects” if you want more structured result sets17:05
zzzeeknot sure if its in 0.8 tho...17:05
morganfainbergdoes that work with the 0.7 of SQLA?17:05
morganfainbergor whatever our minimum is17:05
zzzeekthe column thing?  yes17:05
zzzeekthat’s old17:05
zzzeekbeen there for years17:06
morganfainbergi mean the budle17:06
morganfainbergbundle*17:06
zzzeekthe bundle i think might be in 0.9 only.   if it is useful i can probably make a backport in oslo.db17:06
morganfainbergi could see that being a win for keystone17:06
zzzeekbut with bundle, you still dont have relationship support, nor can you flush them right now17:06
morganfainbergnot sure about others17:06
morganfainbergwe don't do a ton of relationship work17:07
zzzeekthey are just rows.  you can add methods to them though17:07
morganfainbergwell we do, but we do poorly17:07
zzzeekmorganfainberg: here’s the bundle: http://docs.sqlalchemy.org/en/latest/orm/mapper_config.html#column-bundles17:07
zzzeekmorganfainberg: i had an idea to generate bundles from mapped classes automatically17:07
morganfainbergbut our backends are very isolated, e.g. we need to pull from identity because it might or might not be sql, then use that data to talk to assignment17:07
morganfainbergzzzeek, ah thats cool17:07
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tmcpeakjogo: hey, you around?17:23
boris-42zzzeek ping17:28
boris-42dhellmann ping17:28
zzzeekheya17:28
boris-42zzzeek dhellmann just saw that you was pining me in meeting17:28
boris-42zzzeek so what's up?)17:28
zzzeekWell im looking for things to focus on in oslo and looking at nova in order to see what the canonical patterns are, today Im researching where the ORM slowness is17:29
zzzeekper dansmith yesterday, nova implements “its own ORM already so we should drop the SQLA ORM”, I’d rather not go that drastic17:29
boris-42zzzeek so I am already boring about17:30
boris-42zzzeek SQLalchemy is slow17:30
boris-42zzzeek it is not slow17:30
zzzeekfrom my current research, nova is relying a lot on relationships for flushing and loading, and relationship is really where the intricate stuff is17:30
boris-42zzzeek it's lie17:30
boris-42zzzeek the true is that the code of nova is bad17:30
zzzeekboris-42: there’s truth to it.  if you are just flushing a single row lots, the unit of work is overkill17:30
boris-42zzzeek it's not the problem17:31
zzzeekboris-42: OK!17:31
boris-42zzzeek problem is that we are making about 120 requests to create single VM17:31
zzzeekboris-42: yep saw that17:31
boris-42zzzeek problem is that we are fetching 3 big tables on every scheduler query17:31
openstackgerritIlya Pekelny proposed a change to openstack/oslo.db: Implementation Alembic as migration engine  https://review.openstack.org/9996517:31
boris-42zzzeek so reducing amount of queries, and improving the ways how components works is proper way17:32
boris-42zzzeek concentrate on SQLalchemy is bad way=)17:32
zzzeekboris-42: tricky.   nobody can agree on where the problems are17:32
zzzeekboris-42: there was a thread about, tests are too slow because they create/drop the schema every time.  I focused on that a bit, then people yesterday kind of said, no that thread was all wrong, theres nothing wrong with our tests please leave them alone17:33
boris-42zzzeek so17:33
boris-42zzzeek I can*17:33
boris-42zzzeek I specially started 2 projects17:33
boris-42zzzeek https://github.com/stackforge/rally17:33
boris-42zzzeek and osprofiler https://github.com/stackforge/osprofiler17:34
boris-42zzzeek with this we won't need to speak about where is it slow17:34
boris-42zzzeek cause we will get graphs *17:34
boris-42zzzeek that will show=)17:34
zzzeekneat17:34
boris-42zzzeek and in one click=)17:34
zzzeekboris-42: Ive been saying for three weeks im going to put up a wiki page of db/alembic/sqlalchemy directions, that ppl can weigh in on and give me guidance on where they want to see focused effort17:35
zzzeekboris-42: so, guess i have to get that going17:35
boris-42zzzeek actually I dislike alembic17:36
boris-42zzzeek and sq-migrations tools17:36
boris-42zzzeek they are making ALTER, which locks DB => requires stopping of all services17:36
zzzeekboris-42: i was never a fan of them either!  thats why i sat on my hands and someone wrote migrate17:36
zzzeekboris-42: the ALTER->lock DB is a MySQL problem17:36
zzzeekboris-42: they are improving it17:36
boris-42zzzeek psql as well17:36
zzzeekboris-42: not nearly as much.   but how do you want to upgrade databases?17:37
boris-42zzzeek like percona guys does17:37
boris-42zzzeek create one more table17:37
boris-42zzzeek and move records17:37
boris-42zzzeek move services to work with new table17:38
boris-42zzzeek and then drop old table (after all services are using new one)17:38
zzzeekboris-42: yeah that is a different issue, i think straight migration tools are probably hanging around for the near term17:39
zzzeekboris-42: but anyway, you can still use an alembic-like tool to maintain the scripts to run those17:40
boris-42zzzeek yep17:40
zzzeekboris-42: i was surprised how much people focus on the autogenerate thing, which was an afterthought17:40
zzzeekboris-42: i never thought that was the main use pattern17:40
boris-42zzzeek there should be tool (but that doesn't use alters)17:40
zzzeekboris-42: well good luck with that particular arguemnt :)  I have no dog in that race :)17:40
zzzeekboris-42: actually, with sqLite we have to do migrations that way17:40
boris-42zzzeek lol sqlite=)17:41
zzzeekboris-42: so if/when i add that feature to alembic, perhaps it can be generalized17:41
zzzeekboris-42: yup17:41
zzzeekboris-42: this is actually a good idea17:41
boris-42zzzeek yep seems good to me17:41
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zzzeekboris-42: https://bitbucket.org/zzzeek/alembic/issue/21/column-renames-not-supported-on-sqlite#comment-1095576317:46
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boris-42zzzeek great17:46
boris-42rpodolyaka ^ did you see this17:46
zzzeekboris-42: I’ll add this to the wiki page im working up17:48
boris-42zzzeek great17:48
zzzeekboris-42: utimatly i have to get into writing blueprints but i want to have some more direction from everyone before i start drilling down like that17:48
boris-42zzzeek probably you should start mailing list?17:49
boris-42zzzeek thread in mailing list*17:49
zzzeekboris-42: yes ill announce it on openstack-dev17:49
boris-42zzzeek good17:49
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openstackgerritDoug Hellmann proposed a change to openstack/oslo.i18n: Document how to add import exceptions  https://review.openstack.org/10321318:45
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boris-42dhellmann hey there19:12
boris-42dhellmann probably we can merge this https://review.openstack.org/#/c/102362/ ?19:12
dhellmannboris-42: yeah, I didn't see there was already a +219:14
boris-42dhellmann great19:14
dhellmannit looks like mark and I commented at close to the same time19:14
boris-42dhellmann 8 mintues actually=)19:14
dhellmannthat's certainly within the span of time when a browser tab might have stayed open :-)19:15
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openstackgerritDoug Hellmann proposed a change to openstack/oslo.i18n: Shift public API to top level package  https://review.openstack.org/10322419:29
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boris-42dhellmann =)19:41
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openstackgerritMichael H Wilson proposed a change to openstack/oslo.messaging: Add first unit test for 0MQ  https://review.openstack.org/9390520:30
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openstackgerritBen Nemec proposed a change to openstack/oslo-specs: Graduate oslo.concurrency  https://review.openstack.org/9729621:14
beekneemechdhellmann: Quick! :-)21:17
boris-42dhellmann hmm not so many open reviews in oslo.messaging lol21:20
boris-42dhellmann hard to become a core xD21:21
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Tidy up the worker information storage layer  https://review.openstack.org/10324521:28
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dhellmannboris-42: yeah, there will be some for the amqp 1.0 work :-)21:32
dhellmannbeekneemech: approve all the specs! :-)21:32
openstackgerritA change was merged to openstack/oslo-incubator: Mask passwords included without quotes at the ends of commands  https://review.openstack.org/9730521:34
beekneemechdhellmann: +2/+W :-)21:39
dhellmannbeekneemech: :-)21:39
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openstackgerritA change was merged to openstack/oslotest: Updated from global requirements  https://review.openstack.org/9908822:15
openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Tidy up the worker information storage layer  https://review.openstack.org/10324522:18
bknudsondhellmann: https://review.openstack.org/#/c/103256/22:21
bknudsonI couldn't figure out your launchpad id22:21
bknudsonnvm found it22:24
openstackgerritBoris Pavlovic proposed a change to openstack/oslo.messaging: Fix structure of unit tests in oslo.messaging (part 2)  https://review.openstack.org/10247022:29
openstackgerritBoris Pavlovic proposed a change to openstack/oslo.messaging: Fix structure of unit tests in oslo.messaging (part 3 last)  https://review.openstack.org/10247122:29
openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Fix traces left in zookeeper  https://review.openstack.org/10041522:29
boris-42dhellmann I rebased my patches ^ cause tempest gates failed =(22:29
boris-42dhellmann sadness22:30
openstackgerritA change was merged to openstack/oslo.messaging: Fix formatting of TransportURL.parse() docs  https://review.openstack.org/10273222:36
openstackgerritA change was merged to openstack/oslo.messaging: Fix slow notification listener tests  https://review.openstack.org/10302422:36
openstackgerritA change was merged to openstack/oslo.config: Refactors _Namespace to make the code clearer  https://review.openstack.org/9983122:36
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Tidy up the worker information storage layer  https://review.openstack.org/10324522:47
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openstackgerritJoshua Harlow proposed a change to openstack/taskflow: Add a conductor considerations section  https://review.openstack.org/10326723:15
openstackgerritlifeless proposed a change to openstack-dev/pbr: Allow examining parsing exceptions.  https://review.openstack.org/8085623:21
openstackgerritlifeless proposed a change to openstack-dev/pbr: Teach pbr VersionInfo about debian versions.  https://review.openstack.org/8107423:21
openstackgerritlifeless proposed a change to openstack-dev/pbr: Teach pbr about post versioned dev versions.  https://review.openstack.org/8044923:21
openstackgerritlifeless proposed a change to openstack-dev/pbr: Add a converter to version_tuples.  https://review.openstack.org/8045723:21
openstackgerritlifeless proposed a change to openstack-dev/pbr: Break out a common version object from VersionInfo  https://review.openstack.org/9410823:21
openstackgerritBoris Pavlovic proposed a change to openstack/oslo.messaging: OSproifler notifier based on oslo.messaging notify API  https://review.openstack.org/10327023:24
openstackgerritBoris Pavlovic proposed a change to openstack/oslo.messaging: Enable cross service profiling  https://review.openstack.org/10327123:24
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boris-42dhellmann could you pls reapprove https://review.openstack.org/#/c/102470/ and https://review.openstack.org/#/c/102471/23:39
zzzeekim testing some optimizations for a particular part of nova23:51
boris-42zzzeek what kind of?23:52
zzzeekgetting rid of an egaer load and adding these two optimizations that are in the queue23:52
zzzeekinserted 1000 sample floatingIP records23:52
zzzeekScenario default, total calls 2405092323:52
zzzeekScenario fast_save, total calls 172259423:52
zzzeekScenario baked, total calls 98033223:52
zzzeekso ill try to polish this up this weekend :)23:53
boris-42zzzeek ?23:53
boris-42zzzeek what is that?23:53
zzzeekthe nova floating_ip_update method with three optimizations applied23:53
zzzeekrunning it 1000 times23:54
zzzeekboris-42: do you have a bitbucket id, ill add you on23:54
boris-42zzzeek why not just github gist?23:54
zzzeekboris-42: because it is a package23:54
boris-42zzzeek ah23:55
zzzeekboris-42: has some new SQLalchmy features that can be standalone in oslo.db to start23:55
zzzeeka single file was too big for quick consumption23:55
zzzeekim going to have this as part of hte wiki thing im working upj and then the mailing list email23:55
zzzeekthe baked query is this: https://gist.github.com/zzzeek/43d10d34993126f074a523:56
zzzeekthen this: https://bitbucket.org/zzzeek/sqlalchemy/issue/3100/sessionflush_object23:57
zzzeekthen taking out an unnecessary eager load23:57
zzzeekboris-42: going to dinner, lates23:58
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boris-42zhiyan_ see you23:58
boris-42zhiyan_ sorry*23:58

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