Friday, 2016-06-24

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openstackgerritMerged openstack/oslo.vmware: Updated from global requirements  https://review.openstack.org/33369705:46
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openstackgerritAman Kumar proposed openstack/oslo.vmware: Pass connection timeout to re-establish the connection with vCenter  https://review.openstack.org/33088907:14
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openstackgerritMerged openstack/oslo.log: Updated from global requirements  https://review.openstack.org/33369609:14
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openstackgerritMerged openstack/oslo.config: Updated from global requirements  https://review.openstack.org/33369509:19
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YorikSarhaypo: ping10:24
haypoYorikSar: hello10:25
YorikSarhaypo: I wonder why do you change StringIO.StringIO to six.StringIO in py3 patch in Swift.10:25
haypoYorikSar: try "import StringIO" in Python 310:26
YorikSarhaypo: Can't we just switch to io.StringIO or is there any issues with in in 2.7?10:26
haypoYorikSar: i don't know if the patched code uses bytes or string. my first motivation is to avoid the ImportError :)10:26
haypoYorikSar: we can *adjust* this later10:26
YorikSarhaypo: I remember io.StringIO being more strict than StringIO.StringIO, but isn't it a good thing - you'll have to fix all issues with it for 3.x anyway?10:27
haypoYorikSar: the port is too early to know yet if it must be bytes or text10:27
YorikSarhaypo: Ah, ok. One bite at a time, right.10:27
haypo"One bite at a time" you got my philosophy (at least to port openstack to python3) :-)10:27
YorikSarhaypo: How do you manage to get the knowledge about whether to use bytes or str in all these projects?10:28
YorikSarhaypo: It seems every project should have an expert who should be able tell, are there really so many people caring for 3.x?10:29
haypo"are there really so many people caring for 3.x?" i see sometimes some python3 made by others, but the last 2 years, i was the most involved in porting openstack to python 310:30
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haypo"How do you manage to get the knowledge about whether to use bytes or str in all these projects?" it depends :) it depends on the data type, on the project, on the project history, etc.10:30
haypoYorikSar: for swift, i failed to change how HTTP and MIM headers are parsed: https://review.openstack.org/#/c/237042/ & https://review.openstack.org/#/c/237027/10:31
patchbothaypo: patch 237042 - swift - Parse HTTP as bytes on Python 3 (ABANDONED)10:31
patchbothaypo: patch 237027 - swift - Port parse_mime_headers() to Python 3 (MERGED)10:31
haypoYorikSar: i abandonned these changes because of the lack of feedback from swift10:31
haypoYorikSar: changing such code is tricky, as you said, you have to decide if it's bytes or text10:32
haypoYorikSar: so i'm now restarting with a much simpler approach for swift. fix first the most obvious issues, before restarting to attack the real complex issues10:32
YorikSarYeah... Every time I tell people about trying OpenStack on Python 3.x or helping to port it, I get the same question: "Why?". And from user PoV it's really hard question to answer.10:34
haypoYorikSar: you should use  https://wiki.openstack.org/wiki/Python3 as a reference10:35
haypoYorikSar: i wrote http://techs.enovance.com/6521/openstack_python3 "Why should OpenStack move to Python 3 right now?"10:36
haypoYorikSar: oh, i wrote it in 2013!10:36
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YorikSarhaypo: I totally thought that it should take no more that a year to port OpenStack to 3.x. An while I totally agree with your article, it doesn't answer "cost vs benefit" for every single user/contributor.10:39
YorikSarhaypo: 2.7 is working, so businesses don't care. And with businesses go all corporate contributors. And with them go every project's vision basically.10:40
haypoYorikSar: i cannot help much if developers don't understand the principle of technical debt10:40
haypoYorikSar: a debt only *increases*10:40
YorikSarhaypo: Yeah...10:40
haypoYorikSar: FYI we have a similar issue with Oslo. some projects don't care of the deprecated APIs10:41
haypo"it works, why changing anything?"10:41
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dimsgus : "Hence me opening this fun can of worms for broader discussion in this thread.  You're welcome :-)" LOL12:26
gus:)12:27
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sdague:)13:18
sdaguewell, it's been that way forever, I think we just end up with different levels of understanding about why upgrades are hard and scary for folks13:18
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openstackgerritAlexis Lee proposed openstack/oslo.log: log: SpoolFilter and 'spooling' context manager  https://review.openstack.org/32898813:48
openstackgerritAlexis Lee proposed openstack/oslo.log: log: Spooling logger and manager  https://review.openstack.org/31616213:48
openstackgerritAlexis Lee proposed openstack/oslo.log: log: Freeze log records before spooling  https://review.openstack.org/33391113:48
openstackgerritAlexis Lee proposed openstack/oslo.log: log: Limit spools in bytes  https://review.openstack.org/33391213:48
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SamYaplehello. just asked this in the nova channel, but I appear to have stumled onto a wierd olso/nova issue with incorrectly parsed transport_url14:21
SamYaplethe issue only occurs when forking nova-conductor14:21
SamYapleI have filed a bug with the problem here: https://bugs.launchpad.net/nova/+bug/1595965 as well as how to reproduce14:22
openstackLaunchpad bug 1595965 in OpenStack Compute (nova) "transport_url is being parsed different when forking with oslo.service" [Undecided,New]14:22
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SamYaplethere is a note on issues surrounding forking processes with the transport_url, does anyone have more information on that?14:23
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melwittsileht ^14:25
silehtfunny14:26
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SamYaplehave I missed the joke sileht?14:28
SamYapleam _I_ the joke D:14:28
silehtSamYaple, I just like issue with forking stuffs14:28
SamYapleyea tell me about it. you know how long it took me to figure that out?14:30
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SamYaplelike 3 hours14:30
silehtSamYaple, rabbit://<user>:<pass>@server01,server02/openstack is valid url14:31
SamYaplesileht: not according to the docs14:31
SamYapleor rather server02 should be silently ignored14:32
silehtSamYaple, server01 have creds when server02 doesn't needs them14:32
silehttransport://user:pass@host:port[,userN:passN@hostN:portN]/virtual_host?query14:32
SamYaplesileht: http://docs.openstack.org/developer/oslo.messaging/transport.html14:32
SamYaple"Username and password should be specified for each host, in case of lack of specification they will be omitted"14:32
silehtall user/pass are optional14:32
silehtSamYaple, this is what I said no creds will be used for server0214:33
SamYaplehmm the behaviour I see has the server not being used at all14:33
SamYaplebut more importnantly to me, it works without threads (using only server01) it does not work at all with threads14:34
silehtSamYaple, 'they' refers to Username and Password not the server14:36
SamYaplefair enough. i originally used that syntax because thats what I thought too. ill trust you there14:36
SamYaplebut the behaviour is still different with and without multiple threads14:36
SamYaplenova-conductor is the only one that breaks with the syntax14:37
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silehtSamYaple, perhaps this: http://docs.openstack.org/developer/oslo.messaging/transport.html#forking-processes-and-oslo-messaging-transport-objects14:39
SamYapleyes sileht that is what i was thinking too, that was the note i was refering too14:40
SamYaplewho wrote that and under what circumstances?14:40
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openstackgerritAlexey Yelistratov proposed openstack/osprofiler: Add overall profiler stats by operation  https://review.openstack.org/33395115:00
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openstackgerritGevorg Davoian proposed openstack/oslo.messaging: [zmq] Refactor publishers  https://review.openstack.org/33289415:06
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silehtSamYaple, me, because oslo.messaging don't work as expected when FDs are shared been fork15:19
silehtSamYaple, some underlying libraries doesn't close and reopen them15:19
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SamYaplesileht: so i should check if nova-conductor is setting up transport before forking, and if so fix that?15:23
silehtSamYaple, setuping it is OK, but starting to using it is not15:23
SamYapleim like 90% sure conductor uses it immediately after it is setup before the fork. i was neck deep in that code yesterday15:24
silehtSamYaple, you can create the TransportObject even the rpc Server, but you must not call start() before the fork occurs15:24
SamYapleawesome. thanks for the guidance. would have taken me a long time to figure this all out15:24
SamYapleill see if that is how nova-conductor is behaving15:24
silehtand you must not use rpcclient.call/cast before the fork too15:25
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silehtSamYaple, your welcome , I will continue to dig on the oslo.messaging side, because I'm not certain this is due to the fork issue15:26
silehtSamYaple, I just remember that If this is the fork issue, oslo.messaging prints warnings15:29
SamYaplesileht: have you reproduced it?15:30
SamYapleif not you should probably start there. don't trust me to not have screwed it up :)15:31
silehtSamYaple, I have opened rabbit driver and the msg showup to me :)15:31
SamYapleawesome sauce.15:32
SamYapleim not sure its due to the fork either, its jsut wierd to me that it works without forking, and has the issue when forking15:32
SamYapleand nova does some stuff directly to transport_url in the cells code so it may very well be a nova issue sileht15:32
silehtyeah I have participated on the oslo.msg side of this15:33
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openstackgerritIlya Tyaptin proposed openstack/oslo.messaging: [WIP] Moving driver to new kafka-python version  https://review.openstack.org/33210516:11
openstackgerritGevorg Davoian proposed openstack/oslo.messaging: [zmq] Refactor publishers  https://review.openstack.org/33289416:15
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openstackgerritStephen Finucane proposed openstack/oslo.config: Only output summary of help text to config file  https://review.openstack.org/32822916:52
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openstackgerritCyril Roelandt proposed openstack/stevedore: NamedExtensionManager: call a callback when some names cannot be found  https://review.openstack.org/33401417:41
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openstackgerritMerged openstack/taskflow: Updated from global requirements  https://review.openstack.org/33239917:52
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openstackgerritOleksii Zamiatin proposed openstack/oslo.messaging: Check devstack gate zmq  https://review.openstack.org/22977918:58
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jlvillalhttps://review.openstack.org/#/c/332438/  Anyone willing to review that?  It has one +2 on it at the moment.  Thanks!20:12
patchbotjlvillal: patch 332438 - oslo.utils - Make mask_dict_password consistent with mask_password20:12
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jlvillal#33243822:05
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