Monday, 2016-02-22

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openstackgerritChaozhe Chen(ccz) proposed openstack/zaqar: Update requirements  https://review.openstack.org/28188403:57
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wanghaohi guys, happy Lantern Festival!10:04
Eva-iwanghao: hello10:05
wanghaohi~10:05
wanghaoflwang: hi, I have changed this patch:https://review.openstack.org/#/c/273931/, as we discussed it in here, plz have a look if you're free.10:08
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vkmcflwang, won't be able to make it for today's meeting16:22
vkmcjust FYI16:22
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ryansbok16:31
ryansbnoted16:31
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Eva-iryansb: hello. About your comment here https://review.openstack.org/#/c/282338. What do you think about name "responds_with_500_on_error"?16:46
ryansbthat works, or just "can_send_500"16:47
ryansbbut yeah, responds_with_500 is great16:47
ryansbthanks :)16:48
Eva-iryansb: or maybe "sends_500_on_error"?16:48
ryansb"exception_sends_500"16:48
Eva-iryansb: "on_exception_sends_500"? =)16:49
ryansbworks for me16:49
Eva-iryansb: good16:50
openstackgerritEva Balycheva proposed openstack/zaqar: Fix cross-transport error handler  https://review.openstack.org/28233816:54
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openstackgerritEva Balycheva proposed openstack/zaqar: Fix cross-transport error handler  https://review.openstack.org/28233816:55
ryansbthanks Eva-i !!16:56
Eva-iryansb: yes, no problem16:57
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openstackgerritEva Balycheva proposed openstack/zaqar: Catch NoPoolsFound on queue list on websocket API  https://review.openstack.org/28318417:35
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openstackgerritEva Balycheva proposed openstack/zaqar: Fix subscriptions_post resource in wsgi 2 homedoc  https://review.openstack.org/28318917:47
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flwangvkmc: ack20:05
EmilienMflwang: can you look https://review.openstack.org/#/c/282074/ when possible? thanks a ton20:06
Eva-iflwang: hello20:06
flwangEmilienM: sure thing20:06
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flwangmtreinish: ping re https://review.openstack.org/#/c/282074/20:09
flwangmtreinish: EmilienM: just double confirm, with patch https://review.openstack.org/#/c/282074/, we just move the test from tempest into zaqar tree, but no change for the code20:10
flwangso the failure on test_messages and test_claims are still there, right?20:10
flwangEva-i: hey :)20:10
EmilienMright20:10
EmilienMmtreinish did not fix tests for you20:10
EmilienMhe just moved the code to your repo20:10
EmilienMso you can fix it and merge it quickly20:10
EmilienMiiuc20:10
flwangEmilienM: i see. does the plugin depends on Tempest to run?20:11
EmilienMyes20:11
EmilienMit's a tempest plugin20:11
EmilienMso if you don't run tempest in your gate, you might want to consider changing that20:12
EmilienMsince your tempest tests seem broken (at least for me) you might want to set them non voting to start20:12
mtreinishflwang: I just copied the code as is20:12
mtreinishwell I updated a couple of imports and things for living out of tree20:12
mtreinishbut that's it20:12
flwangmtreinish: so my question is if i want to test it locally, do i have to setup Tempest first?20:13
mtreinishflwang: you clone tempest install zaqar into the same python (either system or venv) and tempest will detect the zaqar plugin like it was in tree20:14
mtreinishhttp://docs.openstack.org/developer/tempest/plugin.html#using-plugins20:14
flwangah, i  see20:14
flwangso I still need tempest, got it20:14
flwangi will merge it and fix the test in a separate patch20:16
flwangEmilienM: mtreinish: thank you guys20:16
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openstackgerritMerged openstack/zaqar: Update operation should return updated result  https://review.openstack.org/28056320:49
openstackgerritMerged openstack/zaqar: Fix subscriptions_post resource in wsgi 2 homedoc  https://review.openstack.org/28318920:49
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openstackgerritMerged openstack/zaqar: Updated from global requirements  https://review.openstack.org/28279020:57
Eva-iflwang: ryansb: isn't it meeting time? =)21:01
ryansbyup21:02
ryansbvkmc won't be here today21:02
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Eva-iryansb: flwang1: think sometime about the case I described. I hope it's just my imagination gone too far or I don't understand something.22:02
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ryansbso that situation is exactly why I'm against permanent subscriptions22:03
ryansband why there's no such thing in SQS, workers must check in to get new messages22:03
flwang1ryansb: it's valid point22:04
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Eva-iAre users (clients) of Zaqar server completely trusted entities?22:13
ryansbare users of Rackspace completely trusted?22:13
ryansbI'd have to say probably not22:13
Eva-iThere can be no situation one of the users can try to abuse the system?22:13
ryansbthey just have a valid credit card and a pulse22:13
ryansband nobody checks the pulse.22:13
Eva-iok22:13
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Eva-iI noticed also that SNS also asks confirmation from subscriber endpoint before starting to notify it. I wonder what is main reason behind this.22:20
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ryansbyeah, it may well be22:24
flwangEva-i: that's one good feature we need to add for email subscriber22:25
flwangEva-i: we had discussed this, but don't have much bandwidth to do it22:26
flwangi will create a bp to track it in case we miss it again :)22:26
Eva-iflwang: oki22:26
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Eva-iflwang: and what about adding this feature to webhook?22:27
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Eva-ifunny (maybe not real) case: zaqar-server is running on Ubuntu. The bad user subscribes "ubuntu.com" (or "security.ubuntu.com") to high load queue. Zaqar starts to send many requests to ubuntu.com. Eventually ubuntu's servers automatically ban zaqar-server's IP. Then the system, on which zaqar-server is running, is unable to get package updates.22:38
flwangEva-i: how to get confirm from webhook?22:39
ryansbflwang: in SNS, it sends a message with a "subscription confirmation token"22:42
flwangryansb: for each message?22:43
ryansband the subscriber has to use that to sign a request to SNS saying "yes, that was me, I want to subscribe"22:43
Eva-iflwang: this is how I imagine: webhook server is listening for requests. When special payload from Zaqar comes to webhook server, the webhook server need to respond properly. After webhook server has responded, the subscription can be considered as confirmed.22:43
ryansbno, for the subscription22:43
ryansbso step 1, api call to subscribe an endpoint22:43
Eva-iflwang: not for each message, but for new subscription22:43
ryansbstep 2, sns sends token to say "do you definitely want to subscribe?"22:43
ryansbstep 3, subscriber sends message using token saying yes22:44
flwangryansb: i see, for email, it's easy, but for webhook, i'm thinking how to do it elegantly22:45
ryansbrecommendation: see SNS' docs on the topic22:47
ryansb notification to the topic and Amazon SNS sends an HTTP POST request delivering the contents of the notification t22:47
ryansberr http://docs.aws.amazon.com/sns/latest/dg/SendMessageToHttp.html22:48
ryansbI have to run - dinner time in NY22:48
ryansbIf you want to open this as a bug that would be awesome, I think we need more discussion on this22:49
flwangryansb: cool22:49
flwangi would like to make it as a feature22:49
flwangsince it's a big change22:49
flwangand i will open a bug as well to track this :)22:51
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