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| Swanson | Did PortOpt just disappear? | 00:12 |
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| openstackgerrit | Mitsuhiro Tanino proposed openstack/cinder: Robustify writing iscsi target persistence file https://review.openstack.org/247886 | 00:14 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Extend Volume for VMAX3 https://review.openstack.org/248941 | 00:26 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Changing PercentSynced to CopyState in isSynched https://review.openstack.org/246992 | 00:44 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Replacing deprecated API EMCGetTargetEndpoints https://review.openstack.org/244328 | 00:58 |
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| wanghao | jgriffith:ping | 01:04 |
| wanghao | jgriffith: John, still here? | 01:05 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - _remove_last_vol_and_delete_sg not being called for V3 https://review.openstack.org/252066 | 01:16 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - VMAX driver failing to remove zones https://review.openstack.org/244933 | 01:35 |
| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Fix for randomly selecting a portgroup https://review.openstack.org/243304 | 01:42 |
| openstackgerrit | Mudassir Latif proposed openstack/cinder: Allow replicated volumes to be recoverable https://review.openstack.org/219900 | 01:42 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Incorrect storage group selected on an VMAX3 attach https://review.openstack.org/250443 | 01:51 |
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| openstackgerrit | Ryan McNair proposed openstack/cinder: WIP - Move QoS_Specs to be a VersionedObject https://review.openstack.org/251989 | 01:58 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Fix for last volume in VMAX3 storage group https://review.openstack.org/244331 | 02:06 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - getting iscsi ip from port in existing masking view https://review.openstack.org/245997 | 02:14 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: Proper error handling for invalid SLO/Workload combination https://review.openstack.org/243837 | 02:21 |
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| openstackgerrit | Sean McGinnis proposed openstack/cinder: Remove version per M-1 release instructions https://review.openstack.org/252716 | 02:39 |
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| openstackgerrit | Merged openstack/cinder-specs: Add spec for online-schema-upgrades https://review.openstack.org/245976 | 02:59 |
| openstackgerrit | Merged openstack/cinder: LIO: Handle initiator IQNs as case insensitive https://review.openstack.org/252460 | 03:00 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Improve the remove_multipath_device() method for linuxscsi https://review.openstack.org/249308 | 03:06 |
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| openstackgerrit | Merged openstack/os-brick: Add requests to project requirements https://review.openstack.org/248383 | 05:00 |
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| openstackgerrit | xing-yang proposed openstack/cinder-specs: Backup snapshots https://review.openstack.org/232305 | 05:06 |
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| openstackgerrit | Merged openstack/cinder: Add a FakeGateDriver https://review.openstack.org/244956 | 05:12 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Improve the remove_multipath_device() method for linuxscsi https://review.openstack.org/249308 | 05:57 |
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| openstackgerrit | LisaLi proposed openstack/cinder: Check snapshots when restoring backup https://review.openstack.org/251713 | 06:01 |
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| openstackgerrit | Man Li Qi proposed openstack/cinder: Improve the time cost for datastore selection in cinder vmdk driver https://review.openstack.org/252810 | 08:10 |
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| openstackgerrit | Merged openstack/cinder: Robustify writing iscsi target persistence file https://review.openstack.org/247886 | 08:21 |
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| openstackgerrit | Man Li Qi proposed openstack/cinder: Improve the time cost for datastore selection in cinder vmdk driver https://review.openstack.org/252810 | 08:30 |
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| openstackgerrit | LisaLi proposed openstack/cinder-specs: Retype encrypted volumes https://review.openstack.org/248593 | 08:49 |
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| openstackgerrit | Peter Penchev proposed openstack/os-brick: Add the StorPool brick connector. https://review.openstack.org/192639 | 10:23 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Improve the remove_multipath_device() method for linuxscsi https://review.openstack.org/249308 | 10:24 |
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| openstackgerrit | Peter Penchev proposed openstack/os-brick: Minor documentation fixes for the method parameters https://review.openstack.org/252866 | 10:28 |
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| openstackgerrit | Peter Penchev proposed openstack/os-brick: Add the StorPool brick connector https://review.openstack.org/192639 | 10:29 |
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| openstackgerrit | Shay Halsband proposed openstack/cinder: XtremIO: fix generic glance cache with XtremIO https://review.openstack.org/249814 | 10:39 |
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| swamireddy | HI | 11:35 |
| swamireddy | Is cinder supports key/signature Authentication Model? (assume that keystone has this support) | 11:36 |
| dulek | swamireddy: It should as keystonemiddleware supports it. What's the problem? | 11:38 |
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| flip214 | a wish, because it's nearly christmas: | 11:45 |
| flip214 | File "/opt/stack/cinder/cinder/volume/manager.py", line 1349, in initialize_connection | 11:45 |
| flip214 | raise exception.VolumeBackendAPIException(data=err_msg) | 11:45 |
| flip214 | 00mVolumeBackendAPIException: Bad or unexpected response from the storage volume backend API: Driver initialize connection failed ... | 11:45 |
| flip214 | would be nice if the backtrace _below_ would be printed, too, so that we can see which line in which driver failed... | 11:45 |
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| openstackgerrit | wanghao proposed openstack/cinder-specs: Report backend state in service list https://review.openstack.org/252921 | 12:24 |
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| DuncanT1 | flip214: I spent some time last week swearing at that very issue :-) | 12:33 |
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| flip214 | DuncanT1: already proposed a patch? | 13:14 |
| flip214 | if not, I've got a 1-line fix .... | 13:14 |
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| DuncanT1 | flip214: No, I just put in a one line grab-and-log-the-traceback | 13:20 |
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| openstackgerrit | Philipp Marek proposed openstack/cinder: Show the original backtrace for failures in initialize_connection() https://review.openstack.org/252957 | 13:44 |
| dulek | geguileo: Hi! I've got a question on https://review.openstack.org/#/c/251937 | 13:44 |
| dulek | geguileo: Do you know how to solve e0ne's remark on mocking global config objects? | 13:45 |
| DuncanT1 | flip214: I didn't know you could do that :-) I'll rememebr that | 13:45 |
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| flip214 | DuncanT1: That I can do patches, or that raise can reuse the old backtrace? | 13:51 |
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| DuncanT1 | flip214: I didn't know the reuse-the-backtrace trick. Nice | 14:03 |
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| openstackgerrit | Lukas Bezdicka proposed openstack/os-brick: Remove brackets from portal https://review.openstack.org/234425 | 14:11 |
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| flip214 | DuncanT1: I don't know about disadvantages, though! | 14:15 |
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| DuncanT1 | There's some note pn one of the webpages about it creating a reference cycle which will slow the garbage collector slightly; I don't see that as an issue here | 14:16 |
| openstackgerrit | zhangsong proposed openstack/os-brick: Improve connect_volume method of ISCSIConnector https://review.openstack.org/247390 | 14:16 |
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| smcginnis | flip214: The warning here makes me a little concerned about that: | 14:18 |
| smcginnis | https://docs.python.org/2/library/sys.html | 14:18 |
| smcginnis | But then again, I had to read it a few times and I'm still not sure if it really applies. | 14:19 |
| openstackgerrit | zhangsong proposed openstack/os-brick: Improve connect_volume method of ISCSIConnector https://review.openstack.org/247390 | 14:20 |
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| openstackgerrit | Michal Dulko proposed openstack/cinder: Use proper config option to connect to keystone https://review.openstack.org/251937 | 14:21 |
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| flip214 | smcginnis: running into this code path should be the exception (sic ;) anyway | 14:22 |
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| openstackgerrit | Sean McGinnis proposed openstack/cinder: Remove version per M-1 release instructions https://review.openstack.org/252716 | 14:33 |
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| geguileo | dulek: Sorry, I was having lunch | 14:36 |
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| geguileo | dulek: I see you have posted a new patch for that review, I'll have a look now | 14:37 |
| dulek | geguileo: No problem, I was able to figure it out. Besides - M-1 is almost cut (https://review.openstack.org/#/c/252715/), so it's no hurry. | 14:38 |
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| geguileo | dulek: If there's no hurry I'll leave it for tomorrow, as I'd like to do actual coding now ;-) | 14:39 |
| dulek | geguileo: Great! | 14:39 |
| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Add synchronization in Block Device driver https://review.openstack.org/252979 | 14:40 |
| dulek | geguileo: By the way - any update on required help? | 14:40 |
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| dulek | I think bluex is looking for some coding to do. ;) | 14:40 |
| geguileo | dulek: Oh, yes I think I created a list | 14:40 |
| dulek | geguileo: Awesome! | 14:41 |
| geguileo | bluex: ping - interesting in helping with API races? | 14:41 |
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| geguileo | s/interesting/interested | 14:41 |
| bluex | geguileo: sure! | 14:42 |
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| geguileo | bluex: Great!! because there are at least 5 or 6 more patches to do :-) | 14:42 |
| geguileo | bluex: I'm working on backup API races right now | 14:42 |
| geguileo | Pending patches are: | 14:42 |
| geguileo | 1- Transfers: delete, create, accept methods | 14:43 |
| geguileo | 2- Snapshot creation: _create_snapshot, create_snapshot_in_db, create_snapshots_in_db, _create_snapshot_in_db_validate, _create_snapshots_in_db_reserve, _create_snapshot_in_db_options, create_snapshot_force | 14:44 |
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| geguileo | 3- Volume creation + manage: create, manage_existing, manage_existing_snapshot | 14:44 |
| dulek | geguileo: Maybe it will be easier to share and track in an etherpad? | 14:44 |
| bluex | ^ good idea | 14:45 |
| geguileo | dulek: You are soooooo right!! XD XD XD | 14:45 |
| dulek | geguileo: Here to help. :) | 14:45 |
| geguileo | I'll do it now and then we can see how we distribute them | 14:45 |
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| dulek | xyang: Hi! | 14:48 |
| dulek | xyang: I'm looking through consistencygroup/api.py and got a little confused with the flow. | 14:49 |
| dulek | xyang: https://github.com/openstack/cinder/blob/master/cinder/consistencygroup/api.py#L387-L391 - is there any chance that request_spec will have these? | 14:49 |
| dulek | xyang: Seems like it can be populated only here - https://github.com/openstack/cinder/blob/master/cinder/consistencygroup/api.py#L149-L150 | 14:49 |
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| xyang | dulek: hi, you are probably right. doesn't seem it should have it there | 14:57 |
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| geguileo | bluex dulek: https://etherpad.openstack.org/p/cinder-api-races | 14:59 |
| bluex | thx | 14:59 |
| geguileo | bluex: np | 15:00 |
| geguileo | bluex: I don't know which one is easier/harder, because whenever I tackle one of them I find "surprises" | 15:00 |
| geguileo | bluex: But I think transfers should be relatively easy | 15:00 |
| dulek | xyang: Okay, thanks, I'll take that into account when working on RequestSpec object. | 15:01 |
| dulek | geguileo: Any advices on how to split these patches to make them reviewable? | 15:01 |
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| bluex | geguileo: ok, I think I'll start with transfers and then move to next ones | 15:01 |
| geguileo | dulek: I have done the split there | 15:01 |
| geguileo | dulek: 5 remaining patches, I'm working on 1 of those | 15:02 |
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| geguileo | dulek: And I have grouped methods that need to be reworked | 15:02 |
| dulek | geguileo: Okay, so patch per resource is enough. :) | 15:02 |
| geguileo | dulek: Well, I have split it some other way | 15:02 |
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| geguileo | dulek: For example deletes (volume and snapshots) were in one patch, and creation on other 2 | 15:03 |
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| geguileo | But anything goes | 15:03 |
| dulek | geguileo: Ah, okay. Anyway I guess numbers 1-5 are patch id. ;) | 15:03 |
| geguileo | dulek: Yep | 15:03 |
| geguileo | If someone starts looking at the code and decides to split them more or to group them some other way | 15:04 |
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| geguileo | That can be done in the etherpad as long as a name is assigned to that group | 15:04 |
| geguileo | When I finish with backups I'll go and see what's left and get another group | 15:04 |
| openstackgerrit | Shay Halsband proposed openstack/cinder: XtremIO: fix missing multiattch flag https://review.openstack.org/251768 | 15:05 |
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| dulek | geguileo: Great. I'm swamped with objects and DB migrations work, but bluex should be able to help. :) | 15:06 |
| geguileo | dulek: I can imagine you have enough on your plate right now :-) | 15:07 |
| * dulek isn't at least bothered by management with non-cinder work. | 15:07 | |
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| openstackgerrit | Ronen Mesonzhnik proposed openstack/cinder-specs: Support backup import on another Storage database https://review.openstack.org/249176 | 15:18 |
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| openstackgerrit | Nate Potter proposed openstack/cinder: Use the catalog to retrieve glance_api_servers https://review.openstack.org/252476 | 15:38 |
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| openstackgerrit | Michal Dulko proposed openstack/cinder: OVO request_spec in migrate/manage/retype calls https://review.openstack.org/252458 | 15:52 |
| openstackgerrit | Michal Dulko proposed openstack/cinder: Switch request_spec_list in create CG to ovo https://review.openstack.org/253033 | 15:52 |
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| smcginnis | ildikov: +A! :) | 16:04 |
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| ildikov | smcginnis: yeah, we made it!!! \o/ :) | 16:05 |
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| ildikov | smcginnis: so thanks for the yesterdays chat :) | 16:06 |
| ildikov | scottda: hemnafk: ^^ :) | 16:06 |
| smcginnis | ildikov: Sorry for the confusion. Thanks for pushing that. It will be great to have nova support. :) | 16:06 |
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| ildikov | smcginnis: np, I did my best, I hope the Nova support will remain for the reviews too | 16:06 |
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| scottda | Great ildikov . Let us know how we can help further. | 16:08 |
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| ildikov | scottda: I rebased the code we have already | 16:09 |
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| ildikov | I need to double check it | 16:09 |
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| ildikov | where I will most probably need some help is testing | 16:10 |
| scottda | Please make sure I'm in on the reviews. I'll do some testing when I get a chance. | 16:10 |
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| ildikov | scottda: great, will do, thanks! | 16:10 |
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| ntpttr | dulek: I noticed in https://review.openstack.org/252458 you mention qos_specs not being part of volume types - I recently had a patch that added them to the output of type-show, would it be a simple thing to add them as an entry in cinder.volume.volume_types? | 16:14 |
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| hemna | morning | 16:14 |
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| dulek | ntpttr: It's more of adding them to VolumeType object. Something like that: https://review.openstack.org/#/c/251989/ | 16:20 |
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| ntpttr | dulek: hmm? Maybe I'm confused but that patch looks like it's making them their own object rather than adding them to the VolumeType object | 16:24 |
| hemna | ildikov, it landed?! | 16:24 |
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| ildikov | hemna: \o/ :) | 16:24 |
| hemna | w00t! | 16:24 |
| hemna | nice :) congrats | 16:24 |
| ildikov | hemna: thanks for the help | 16:25 |
| hemna | ildikov, you are welcome. I'm glad I could help confuse everyone :) | 16:25 |
| tbarron | ntpttr: qos-specs can be shared among multiple volume types, so not part of volume type object itself | 16:25 |
| ntpttr | tbarron: ah okay, thanks - makes sense | 16:26 |
| ildikov | hemna: you weren't the first :) | 16:26 |
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| openstackgerrit | Gerald McBrearty proposed openstack/cinder: Storwize: add config option to control flash copy rate https://review.openstack.org/248250 | 16:26 |
| ildikov | hemna: on the other hand I think it was very useful to discuss this through | 16:27 |
| openstackgerrit | Thang Pham proposed openstack/cinder: Update migrate_volume API to use versionedobjects https://review.openstack.org/228916 | 16:27 |
| ildikov | hemna: so it's good that you all did confuse the situation a bit :) | 16:27 |
| hemna | ildikov, yah I hope it helps get everyone on the same page | 16:27 |
| hemna | I also realized on the way home last night, that if we didn't have nova call cinder for each attach and had cinder track them, then when you did cinder list or cinder show, it would only ever show 1 attachment | 16:28 |
| hemna | which I think is bad | 16:28 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder-specs: Resource cleanup to support HA A/A https://review.openstack.org/236977 | 16:29 |
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| ildikov | hemna: if people assume it will list the instance attachments as well, then I agree | 16:29 |
| ildikov | hemna: so it depends a bit on how we define the terms and Cinder's expected behaviour IMHO | 16:30 |
| openstackgerrit | Szymon Wróblewski proposed openstack/cinder: Update initialize_connection to use versionedobjects https://review.openstack.org/238894 | 16:31 |
| hemna | ildikov, well we show attachments to instances now | 16:31 |
| hemna | it just happens to be one | 16:31 |
| dulek | ntpttr: Sorry, I'm in a meeting. It is - but we can add lazy-loaded relationship to VolumeType. | 16:31 |
| hemna | w/o the tracking there will be 'hidden' attachments that the user never sees | 16:31 |
| hemna | and leads to confusion and problems debugging issues. | 16:31 |
| xiaohui | geguileo: Hi, are you online? I have replied your new comments about the fail case of the logic for https://review.openstack.org/#/c/206923/. | 16:31 |
| openstackgerrit | Szymon Wróblewski proposed openstack/cinder: Update replication to use versionedobjects https://review.openstack.org/238906 | 16:31 |
| dulek | ntpttr: But just after we have a volume. | 16:31 |
| hemna | I also wonder about live migration issues | 16:31 |
| geguileo | xiaohui: Yep, I'm online | 16:32 |
| geguileo | xiaohui: I'll review it tomorrow morning | 16:32 |
| ntpttr | dulek: i see, thanks :) | 16:32 |
| scottda | I like Cinder having control of the attachments. But then, some might say I have issues... | 16:32 |
| hemna | :P | 16:32 |
| scottda | And I don't think Nova wants to deal with it. | 16:33 |
| geguileo | xiaohui: Unless it's urgent | 16:33 |
| smcginnis | My whole thing is that instance attachments are outside the block storage management domain. | 16:33 |
| xiaohui | geguileo:not urgent, tomorrow is ok. I have some opinion on the logic. Great thanks for reviewing it! | 16:33 |
| geguileo | xiaohui: Thanks for working on it and not giving up ;-) | 16:34 |
| ildikov | hemna: as it shows instances right now then I totally agree that we should not change it now just out of the blue | 16:34 |
| hemna | yup | 16:34 |
| scottda | smcginnis: Yeah, I get that. But then Nova could make the inverse arguement: They don't care about this, they just want an API to call to attach/detach a volume. | 16:34 |
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| smcginnis | They have a volume. If they want to give it to an instance, great. If they want to give it to multiple instances, more power to you. If they just want to keep it around and keep it as a pet, so be it. :) | 16:35 |
| ildikov | well, Nova is not generally against it, but I think if we start refactoring their already existing code, then we would still face with some level of sadness | 16:35 |
| smcginnis | ildikov: Yeah, I agree with that. | 16:35 |
| xiaohui | geguileo: thanks for your efforts too! :-) | 16:35 |
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| openstackgerrit | Gorka Eguileor proposed openstack/cinder-specs: Remove Cinder API races https://review.openstack.org/207101 | 16:36 |
| scottda | I think it would be more architecturally sound to keep things as you want them smcginnis , but I appreciate your pragmatism on this. It's never happen without following the path we are on. | 16:36 |
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| smcginnis | scottda: Yeah, there's architectural purity, then there's reality. ;) | 16:36 |
| scottda | So the only question is: Group Hug or Cage Match? | 16:36 |
| smcginnis | Cage match followed by a group hug? :P | 16:37 |
| scottda | I like it! | 16:37 |
| smcginnis | I'm going to put it as a topic for the midcycle. | 16:37 |
| smcginnis | Definitely something we should all discuss. | 16:37 |
| ildikov | :D | 16:37 |
| scottda | cool | 16:37 |
| ildikov | when and where do you have your mid-cycle? | 16:37 |
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| scottda | This year in Raleigh, NOrth Carolina, same week as Nova's unfortunately | 16:38 |
| scottda | January 26-29 | 16:38 |
| smcginnis | ildikov: Same week as nova's. :[ | 16:38 |
| ildikov | it would be good if it would be at the same place too | 16:39 |
| smcginnis | ildikov: That would have been good. Then we could do a group session too. | 16:39 |
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| hemna | ildikov, yah good luck changing nova's processes. | 16:40 |
| hemna | that's simply not going to happen | 16:40 |
| smcginnis | ildikov: Maybe if we have some cinder-nova topics we could do a hangout. | 16:40 |
| scottda | Hey, great idea | 16:40 |
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| * scottda sees know why smcginnis is our Fearless Leader | 16:41 | |
| smcginnis | Def good to keep the communication open between us. You've been a big help with that scottda. | 16:41 |
| smcginnis | Hah! | 16:41 |
| scottda | I wish I had more time for it. I'm gonna hit the boss us this week on that very topic | 16:41 |
| ildikov | yeah, I'm not signed-up for the Nova one yet either, but Hangouts sounds pretty good either way :) | 16:41 |
| DuncanT1 | smcginnis: I'm not sure instance attachments should be outside of cinder's domain - they're part of it now, and it lets you do things like access control on shares to reduce data exposure in the case of a compute node compromise (something that is designed into our public cloud solution) | 16:42 |
| smcginnis | ildikov: We'll have one for remote attendees for sure. | 16:42 |
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| hemna | the hangouts would be cool, if it works. those can get recorded and posted on the cinder youtube | 16:42 |
| hemna | DuncanT1, +1 | 16:42 |
| ildikov | smcginnis: cool! sounds good :) | 16:42 |
| hemna | hiding attachments for volumes is bad. | 16:42 |
| hemna | that's going to lead to no end of problems. | 16:42 |
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| smcginnis | DuncanT1: In case of a compute node compromise - the block storage is already accessible to the nova host. If that host is compromised I don't see how that helps. | 16:43 |
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| DuncanT1 | smcginnis: Not every volume is assessable, only the ons(s) validly attached to that compute host | 16:43 |
| DuncanT1 | smcginnis: You'd need to compremise the control plane to get access to more volumes | 16:44 |
| DuncanT1 | smcginnis: i.e. 99.9% of volumes are safe | 16:44 |
| smcginnis | DuncanT1: Right. And it needs to be attached to the compute host for one instance. SO why does Cinder care if there are two instances using it. | 16:44 |
| smcginnis | DuncanT1: I'm not talking about the rest of the volumes on the backend. | 16:44 |
| smcginnis | DuncanT1: This is one volume with multiple attachments. | 16:44 |
| DuncanT1 | smcginnis: Cinder needs to know what instances it is attached to (or at least what compute hosts) in order to set up the access control I just talked about | 16:44 |
| smcginnis | DuncanT1: As a backend I care about exposing a volume to a nova host. | 16:45 |
| DuncanT1 | smcginnis: For any one volume, we control which compute host(s) it is attached to | 16:45 |
| smcginnis | DuncanT1: But what nova wants to do with it after that is really none of my busines.s | 16:45 |
| smcginnis | DuncanT1: Right - compuute hosts. Not the instances on those compute hosts. | 16:45 |
| DuncanT1 | smcginnis: So you're treating multiple hypervisors on one host differently to multiple hypervisors on multiple hosts? | 16:45 |
| DuncanT1 | smcginnis: That seems like a recipe for conveluted, hard to debug code | 16:46 |
| smcginnis | DuncanT1: Multiple hypervisors on one host? | 16:46 |
| DuncanT1 | smcginnis: For multiple attach | 16:46 |
| DuncanT1 | e.g. multiple instances of KVM | 16:46 |
| smcginnis | DuncanT1: One hypervisor, multiple guest VMs. | 16:46 |
| smcginnis | DuncanT1: Or are you saying running a hypervisor inside a guest? Nested virtualization? | 16:47 |
| DuncanT1 | smcginnis: I consider each KVM guest on a compute host to have it's own hypervisor | 16:47 |
| DuncanT1 | smcginnis: But that's just terminology | 16:47 |
| smcginnis | DuncanT1: Yeah, we may have a terminology mismatch here. | 16:47 |
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| hemna | smcginnis, that's what CI is basically. | 16:48 |
| DuncanT1 | So if I have volume A attached to instance 1 one compute host HOST1, and the same volume also attached to instance 2 on the same host, I think cinder should know about both attachments separately, just like it absolutely needs to if the instances happen to be on HOST1 and HOST2 | 16:48 |
| scottda | So, as long as Cinder cares which compute host a volume is attached to, we'd want to be called for each attach and detach to update the DB. | 16:49 |
| hemna | DuncanT1, +1 | 16:49 |
| smcginnis | hemna: What, nested virtualization? Yes, but then you're still attaching to the nova compute host. | 16:49 |
| hemna | cinder list and cinder show, should show all of the attachments for the volume, regardless of what host it's attached to. | 16:49 |
| smcginnis | scottda: Per compute host. | 16:49 |
| DuncanT1 | smcginnis: Ceph and others attach to the KVM instance, *not* to the host. iSCSI might be going that way too | 16:49 |
| scottda | at the very least per compute host. Just to know about the export | 16:49 |
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| hemna | DuncanT1, that's what the nova guys want, but we also object to that :) | 16:50 |
| DuncanT1 | hemna: Why? | 16:50 |
| hemna | heh | 16:50 |
| DuncanT1 | hemna: As long as it works, makes a bunch of stuff easier | 16:50 |
| hemna | smcginnis, we should find that discussion on the irc archive | 16:51 |
| hemna | DuncanT1, the thing is, it doesn't | 16:51 |
| DuncanT1 | hemna: Happy to learn about issues I don't know about | 16:51 |
| smcginnis | DuncanT1: And are we going to track containers? And track that Exchange server is running on baremetal that we've attached to? Why do I care the end consumer, just the SCSI intitiator that needs the block device. | 16:51 |
| DuncanT1 | smcginnis: far from all of cinder is iSCSI | 16:51 |
| hemna | smcginnis, those containers may very well have a unique iqn | 16:51 |
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| hemna | in which case it has to be a new attachment tracked. | 16:51 |
| smcginnis | hemna: But then they are the initiator, not the host they are running on. | 16:52 |
| DuncanT1 | smcginnis: And the ways we do iSCSI differ between backends | 16:52 |
| hemna | smcginnis, but unless you track that attachment you can't do force detach | 16:52 |
| hemna | because you have no way of tracking the initiator information per attachment | 16:52 |
| smcginnis | hemna: Why not? | 16:52 |
| hemna | which is on my todo list | 16:52 |
| smcginnis | But it's a separate initiator in that case, so it is a different unique attachment. | 16:52 |
| hemna | in order to do force detach correctly, you need to know the initiator connector | 16:52 |
| hemna | which we currently aren't saving | 16:52 |
| hemna | but need to. | 16:52 |
| hemna | yah, that's exactly what I said | 16:53 |
| hemna | :P | 16:53 |
| smcginnis | :) | 16:53 |
| scottda | So, just to throw out wild ideas, what if Cinder did not track any attachments? We already have no means to deal with detach within Cinder, absent a call from the consumer to terminate_connection.... | 16:53 |
| scottda | Our force-detach does not work with multiattach | 16:53 |
| hemna | scottda, how do you debug issue then ? | 16:53 |
| hemna | when you have no idea what a volume is attached to ? | 16:53 |
| scottda | We would only have the possibility of force-detach-all | 16:53 |
| hemna | scottda, yah | 16:54 |
| hemna | which I think is probably ok. | 16:54 |
| hemna | ok afk.... | 16:54 |
| scottda | It may be the only way. | 16:54 |
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| smcginnis | I think this conversation requires a whiteboard. And a few beers. Good thing the midcycles not far away. :) | 16:54 |
| scottda | agreed, but nice to get some context going. | 16:55 |
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| smcginnis | Yeah, definitely. | 16:58 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Add synchronization in Block Device driver https://review.openstack.org/252979 | 17:09 |
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| ildikov | smcginnis: scottda: hemna: sorry, was on a meeting in parallel | 17:16 |
| ildikov | interesting discussion, I'm still happy we managed to find a small common point for the Nova spec for now :) | 17:17 |
| ildikov | let's see where it goes, if you plan to discuss this on the mid-cycle I will definitely try to join at least via Hangouts | 17:18 |
| scottda | ildikov: https://etherpad.openstack.org/p/mitaka-cinder-midcycle is our tracking etherpad for the mid-cycle | 17:19 |
| scottda | If we've enough to discuss, we'll plan a Cinder-Nova hangout for shared topics. | 17:19 |
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| ildikov | scottda: cool, tnx | 17:22 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Implement snapshots-related features for Block Device Driver https://review.openstack.org/253111 | 17:49 |
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| openstackgerrit | Walter A. Boring IV (hemna) proposed openstack/cinder: WIP 3PAR fix driver to work with image cache https://review.openstack.org/236143 | 18:00 |
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| thingee | smcginnis, jgriffith so discussions have stalled on https://review.openstack.org/#/c/182150/6 | 18:15 |
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| thingee | I think wanghao spoke on the use case of outside DR software using this information. I think we agree Cinder would not be the DR software? | 18:16 |
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| smcginnis | thingee: Yeah, I think that's right. | 18:16 |
| thingee | so if we want something not Cinder to accomplish this, we need to give some information | 18:16 |
| hemna | thingee, +1 | 18:17 |
| smcginnis | So a little rustly (I need to read through again) but the idea is to make access to the necessary data easier | 18:18 |
| smcginnis | So something like smaug, DRagon, projectX can pick it up and do what's necessary. | 18:18 |
| smcginnis | Is that right? | 18:18 |
| thingee | the replicated volume ref. | 18:18 |
| hemna | smcginnis, I think so yes | 18:18 |
| smcginnis | thingee, hemna: OK, cool. That makes sense to me. | 18:18 |
| thingee | yes that was my understanding as well | 18:19 |
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| thingee | So what about volumes that weren't originally managed by cinder, that are replicated. | 18:20 |
| thingee | does the driver tell cinder that information? | 18:21 |
| thingee | This is a separate problem I think | 18:22 |
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| smcginnis | thingee: Yeah, I think so too. | 18:22 |
| thingee | to touch onto jgriffith's point, I agree that we shouldn't save the data on unmanage and expect things to be valid. I think we should on managing ask the driver for everything it knows about that volume | 18:24 |
| thingee | is that volume replicated, great let me update the db | 18:24 |
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| smcginnis | That makes sense on unmanage. In that case we are being told we are no longer responsible for the volume. We shouldn't be expected to keep anything around for it. | 18:24 |
| thingee | this of course is optional, but we should settle on the expect dict of data returned from driver to the manager layer | 18:24 |
| smcginnis | Was there a recommended dict defined in the spec? (Still haven't gotten back to reread it) | 18:26 |
| xyang1 | thingee: smcginnis seems this should be part of replication v2, i do | 18:27 |
| xyang1 | not sure how this is related | 18:27 |
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| thingee | smcginnis: no this doesn't touch on manage/unmanage at all. This is a separate problem I'm talking about. This is simply us storing the real driver ref of the replicated volume and giving that in an admin api call | 18:28 |
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| thingee | smcginnis: in which then DR software can query for it | 18:28 |
| smcginnis | thingee: Ah, OK. | 18:28 |
| thingee | xyang1: sure | 18:29 |
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| smcginnis | xyang1: Yeah, true | 18:29 |
| xyang1 | thingee: smcginnis so this data could be returned by driver after replication enable, I think | 18:30 |
| thingee | xyang1: right | 18:30 |
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| smcginnis | xyang1: Probably good to get it somehow after manage existing to cover the other case thingee was talking about too. | 18:35 |
| xyang1 | smcginnis: what is manage existing? | 18:35 |
| xyang1 | smcginnis: I thought this is about replication? | 18:36 |
| xyang1 | smcginnis: you mean replicate managed device? | 18:36 |
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| smcginnis | Managing an existing volume that has already been set up with replication. | 18:36 |
| smcginnis | Not sure how we even handle that right now. | 18:36 |
| xyang1 | smcginnis: oh, that is one step further | 18:36 |
| xyang1 | smcginnis: thingee, I don't see common dicts defined for replication data right now | 18:37 |
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| xyang1 | so right now it is free form defined by driver after replication enable call | 18:38 |
| xyang1 | {replication_driver_data: vendor-data} | 18:40 |
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| thingee | xyang1: I think that was intentional | 18:41 |
| thingee | smcginnis, jgriffith commented on the spec, it would be great to move forward or continue discussion. don't want to leave wanghao hanging. | 18:42 |
| thingee | bbl meeting | 18:42 |
| xyang1 | thingee: ok, thanks | 18:43 |
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| openstackgerrit | Chris Morrell proposed openstack/cinder: Address potential races in SolidFire VAG https://review.openstack.org/252660 | 19:01 |
| openstackgerrit | Nate Potter proposed openstack/cinder: Use the catalog to retrieve glance_api_servers https://review.openstack.org/252476 | 19:02 |
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| jgriffith | thingee: smcginnis still not quite sure.. but summary posted via inline comment | 19:55 |
| jgriffith | thingee: smcginnis with some additional notes in the main comment | 19:55 |
| jgriffith | thingee: smcginnis no guarantee that I'd up vote the code, but no harm in trying it out :) | 19:56 |
| smcginnis | heh :) | 19:56 |
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| xyang1 | jgriffith: +A without +2? does that work? | 19:57 |
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| jgriffith | Oops | 19:58 |
| jgriffith | xyang1: thanks :) | 19:58 |
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| jgriffith | xyang1: and yes it does | 19:58 |
| xyang1 | jgriffith: I was wonder what you are trying to do:) | 19:59 |
| jgriffith | xyang1: me too :) | 19:59 |
| xyang1 | :) | 19:59 |
| smcginnis | jgriffith: Since I've been leaning on Swanson for replication updates I'm not sure - do we have enough info in the db to not make it up to the drivers? | 20:00 |
| smcginnis | jgriffith: I do agree, I don't really like the "optional" wording. | 20:01 |
| Swanson | jgriffith, ^^^^ that should frighten you. | 20:01 |
| smcginnis | Hah! | 20:01 |
| smcginnis | I bug Swanson, Swanson bugs jgriffith, then I don't have to bug jgriffith directly. ;) | 20:01 |
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| xyang1 | jgriffith: smcginnis one thing I am not sure is why not return the whole replication_driver_data? is replicated_volume_ref enough? | 20:06 |
| jgriffith | xyang1: +1 | 20:07 |
| jgriffith | xyang1: I'd just return that entire ref | 20:07 |
| xyang1 | jgriffith: ok, I'll add that comment there | 20:07 |
| jgriffith | thingee: seems to get it though... we should ask him | 20:07 |
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| scottda | hemna: Here's the API microversion code for cinderclient: https://review.openstack.org/#/c/248163/ | 20:33 |
| Swanson | What is the replicated_volume_ref? | 20:35 |
| xyang1 | Swanson: I think that is a new thing defined in that spec, reference for vendor to recognize the replicated volume? | 20:36 |
| xyang1 | Swanson: like a name, id, etc | 20:36 |
| Swanson | xyang1, So, the source? | 20:37 |
| Swanson | xyang1, not a repl destination... | 20:37 |
| xyang1 | Swanson: I think it is the target | 20:37 |
| xyang1 | jgriffith: what is your interpretation? | 20:37 |
| Swanson | xyang1, You can have 100 targets. | 20:38 |
| Swanson | (set your timeouts high.) | 20:38 |
| jgriffith | Swanson: xyang1 hehe.. I had assumed "target" or "destination" | 20:38 |
| jgriffith | Swanson: xyang1 AKA "replica" | 20:38 |
| jgriffith | honestly, reading again I'm not entirely sure of the goal still :( | 20:39 |
| jgriffith | was hoping thingee might explain | 20:39 |
| xyang1 | jgriffith: ok:) | 20:39 |
| Swanson | jgriffith, xyang1 so replica_volume_ref rather than replicated_volume_ref. | 20:39 |
| jgriffith | xyang1: Swanson I *THINK*.... | 20:39 |
| jgriffith | xyang1: Swanson they want to be able to sort of "re-hydrate" a volume to point to the replica/target | 20:40 |
| xyang1 | Swanson: may be you can ask him to clearly define it and provide example in the spec | 20:40 |
| jgriffith | xyang1: Swanson in other words say you have volume V1-a replicated to V1-b | 20:40 |
| jgriffith | V1-a pukes.... | 20:40 |
| jgriffith | I *think* they want to be able to take the reference to V1-b and cram it in to the db record for V1-A maybe? | 20:41 |
| jgriffith | which I don't get.. that's what rep V2 kinda does for you anyway... it was the whole point | 20:41 |
| jgriffith | I've decided that I suck at interpretting specs so now I go with the flow and wait to see the code :) | 20:41 |
| Swanson | jgriffith, xyang1 I think it is more to bring up v1-b on cloud b. | 20:42 |
| jgriffith | Swanson: ahh.. yeah... I think you're right | 20:42 |
| jgriffith | Swanson: although... I'd kinda have to ask "why"? But that's ok :) | 20:42 |
| xyang1 | Swanson: ok, make sense | 20:42 |
| jgriffith | Swanson: xyang1 So they want to duplciate the volume-ref from V1-a in the cloud that V1-b is in? | 20:43 |
| jgriffith | Swanson: xyang1 so manage the volume and get all of the "extra" info? | 20:43 |
| jgriffith | I still don't see the value | 20:43 |
| Swanson | jgriffith, xyang1 say I have v1-a replicated to V1-b AND v1-c. (One local recovery and one remote.) What get's returned? | 20:43 |
| jgriffith | or need... everything is kinda there already | 20:43 |
| xyang1 | jgriffith: hmm, manage could work too | 20:43 |
| jgriffith | Swanson: :) | 20:43 |
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| xyang1 | Swanson: not sure:). it is not specified in the spec | 20:45 |
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| openstackgerrit | Sean McGinnis proposed openstack/os-brick: Add reno for release notes management https://review.openstack.org/253207 | 20:48 |
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| Swanson | jgriffith, xyang1 asked for more detail. | 20:50 |
| jgriffith | Swanson: Ohhh sure! Just trying to make me look bad with disagreement counts aren't you? :) | 20:51 |
| Swanson | jgriffith, I forgot about those. | 20:52 |
| jgriffith | Swanson: LOL | 20:52 |
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| xyang1 | Swanson: ok | 20:53 |
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| openstackgerrit | Gerald McBrearty proposed openstack/cinder: Storwize: Add force flag on first vdisk mapping call https://review.openstack.org/248225 | 21:29 |
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| thingee | jgriffith: I only think I get it | 21:35 |
| thingee | I think if manage is able to retrieve that information on the second cloud, sure, that sounds like a better solution to me | 21:37 |
| thingee | smcginnis, hemna xyang1 wanghao ^ | 21:37 |
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| xyang1 | hi | 21:38 |
| openstackgerrit | Helen Walsh proposed openstack/cinder: Error handling for invalid SLO/Workload combO https://review.openstack.org/243837 | 21:38 |
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| thingee | jgriffith: I added a comment about it. I like that better. | 21:43 |
| jgriffith | thingee: cool | 21:43 |
| jgriffith | thingee: thanks! | 21:43 |
| hemna | what'd I miss | 21:44 |
| thingee | hemna: https://review.openstack.org/#/c/182150/11 last comment | 21:44 |
| hemna | thingee, thanks, checking | 21:44 |
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| xyang1 | thingee: that makes sense, if manage works, we don't need to introduce new logic | 21:48 |
| thingee | credit goes to jgriffith :) | 21:49 |
| openstackgerrit | Merged openstack/cinder-specs: Backup snapshots https://review.openstack.org/232305 | 21:49 |
| hemna | jgriffith, +1 | 21:49 |
| hemna | yah sounds good to me | 21:49 |
| xyang1 | jgriffith: +1 | 21:49 |
| jgriffith | thingee: nah... it was a long conversation among several :) | 21:49 |
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