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| ildikov | #startmeeting cinder-nova-api-changes | 17:00 |
|---|---|---|
| openstack | Meeting started Mon Nov 7 17:00:16 2016 UTC and is due to finish in 60 minutes. The chair is ildikov. Information about MeetBot at http://wiki.debian.org/MeetBot. | 17:00 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 17:00 |
| *** openstack changes topic to " (Meeting topic: cinder-nova-api-changes)" | 17:00 | |
| openstack | The meeting name has been set to 'cinder_nova_api_changes' | 17:00 |
| ildikov | scottda ildikov DuncanT ameade cFouts johnthetubaguy jaypipes takashin alaski e0ne jgriffith tbarron andrearosa hemna erlon mriedem gouthamr ebalduf patrickeast smcginnis diablo_rojo gsilvis xyang1 raj_singh lyarwood | 17:00 |
| smcginnis | o/ | 17:00 |
| *** mriedem has joined #openstack-meeting-cp | 17:00 | |
| ildikov | smcginnis: hi :) | 17:00 |
| mriedem | hangouts today? | 17:01 |
| ildikov | mriedem: that's the plan | 17:01 |
| ildikov | I asked hemna to help out to get it recorded, etc | 17:01 |
| ildikov | jgriffith: johnthetubaguy: are you around? | 17:01 |
| jgriffith | o/ | 17:02 |
| johnthetubaguy | o/ | 17:02 |
| johnthetubaguy | do we have the hangout link yet? | 17:03 |
| * ildikov is looking at hemna now :) | 17:03 | |
| mriedem | does it need to be recorded? ideally yes but if we have the people let's just get started. | 17:03 |
| mriedem | recap later in the ML if needed | 17:03 |
| ildikov | mriedem: no, we just thought this is the best way of not loosing info and get people on track, who missed it | 17:04 |
| ildikov | here's a link: https://hangouts.google.com/call/x5nrih3zinbvdbb66cqdvlnn2me | 17:04 |
| * smcginnis is at a coffee shop and has no headphones so will catch up afterward... | 17:04 | |
| ildikov | I'll try to get some notes while our experts talk | 17:05 |
| smcginnis | ildikov: thanks! | 17:05 |
| ildikov | #info we are trying to figure out whether to go with v1 or v2 | 17:07 |
| jgriffith | link to v2 https://review.openstack.org/#/c/387712/2/cinder/api/v3/attachments.py | 17:07 |
| smcginnis | Did we get a better understanding in BCN that v1 could work for Nova? | 17:08 |
| ildikov | #info it would be great having a more simpler approach | 17:09 |
| ildikov | smcginnis: I don't think so | 17:09 |
| scottda | hi. Sorry, forgot about time change | 17:09 |
| ildikov | scottda: no worries | 17:09 |
| ildikov | scottda: we're having a Hangout today: https://hangouts.google.com/call/x5nrih3zinbvdbb66cqdvlnn2me | 17:10 |
| ildikov | v1 approach: #link https://review.openstack.org/#/c/327408/ | 17:11 |
| ildikov | summit session etherpad: #link https://etherpad.openstack.org/p/ocata-nova-summit-cinder-session | 17:12 |
| ildikov | #info reserve call remains as is | 17:13 |
| ildikov | #info it helps avoid races with multiple attach calls, etc. | 17:13 |
| ildikov | #info should we have a reserve that creates an attachment_id? | 17:15 |
| ildikov | #info the old or new version of the reserve call will get the instance_uuid as the Nova side has that the earliest | 17:17 |
| ildikov | #info in the new and shiny version of the proposal reserve will create the attachment record in Cinder and return the id | 17:19 |
| ildikov | #info regarding v1 and v2 John Garbutt thinks we need all the v2 calls | 17:19 |
| mriedem | hemna: we're all talking | 17:20 |
| scottda | we can hear you hemna | 17:20 |
| scottda | It is you. | 17:20 |
| scottda | We are talking\ | 17:20 |
| smcginnis | It's not me, it's you? :) | 17:20 |
| scottda | You are talking at the same time | 17:20 |
| hemna | dangit | 17:20 |
| hemna | sorry! | 17:20 |
| ildikov | hemna: no worries | 17:20 |
| ildikov | hemna: blame Monday! :) | 17:21 |
| hemna | that it is! | 17:22 |
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| ildikov | #info Nova can store additional info and handle locks to not have an attach, while we're detaching | 17:24 |
| scottda | hemna: We still hear you | 17:25 |
| ildikov | #info we need to shorten the window and have locks to eliminate races | 17:27 |
| ildikov | #info Cinder returns info about either safe to detach or the info about the driver whether it shares connection or not | 17:28 |
| hemna | I cannot connect to the hangout and get audio | 17:29 |
| hemna | :( | 17:29 |
| ildikov | hemna: :S, I have no clue how to fix that | 17:29 |
| hemna | trying a reboot :( | 17:30 |
| hemna | safari works...chrome doesn't. | 17:37 |
| ildikov | #info locking needs to be done on Nova side, Nova gets all the info from Cinder that's needed | 17:47 |
| ildikov | #info if we have create_attachment, update_attachment and remove_attachment, we should not have reserve, let create handle the lock on Cinder side | 17:49 |
| ildikov | #info one attach at a time even in case of multiattach just to be safe | 17:49 |
| ildikov | #info after create, Nova sends the connection info to Cinder | 17:50 |
| ildikov | #info Cinder returns the info about shared or not shared connection, so Nova has the info for disconnect | 17:51 |
| ildikov | #info do not remove attachment from Cinder before disconnect | 17:51 |
| ildikov | #info Nova removes the attachments and calls disconnect when no further attachments remained | 17:53 |
| ildikov | #info live migrate: same instance_uuid but different hosts is enabled in Cinder | 17:54 |
| ildikov | #info we need both connections at the same time for making live migrate work | 17:54 |
| ildikov | #info John Garbutt works on live migrate flow and update the spec | 18:07 |
| ildikov | #info John Griffith updates v2 with the agreements from today's call on create/delete/update attachment | 18:08 |
| * johnthetubaguy nods | 18:09 | |
| ildikov | johnthetubaguy: :) | 18:09 |
| ildikov | #info Ildiko handles meeting minutes and administration | 18:10 |
| ildikov | thank you! see you all this time next week! | 18:10 |
| ildikov | #endmeeting | 18:10 |
| *** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings" | 18:10 | |
| openstack | Meeting ended Mon Nov 7 18:10:43 2016 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 18:10 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/cinder_nova_api_changes/2016/cinder_nova_api_changes.2016-11-07-17.00.html | 18:10 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/cinder_nova_api_changes/2016/cinder_nova_api_changes.2016-11-07-17.00.txt | 18:10 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/cinder_nova_api_changes/2016/cinder_nova_api_changes.2016-11-07-17.00.log.html | 18:10 |
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