| openstackgerrit | Tom Swanson proposed openstack/cinder: WIP: Dell SC: Retype fixes https://review.openstack.org/397970 | 00:08 |
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| hemna | what'd I do now? | 01:35 |
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| mriedem | anyone else seeing this in the gate lately? http://logs.openstack.org/69/396469/7/check/gate-tempest-dsvm-cells-ubuntu-xenial/29e8b58/logs/screen-c-vol.txt.gz?level=TRACE#_2016-11-15_22_06_36_791 | 02:17 |
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| openstackgerrit | xianming.mao proposed openstack/cinder: Delete the redundant expression expected_attrs https://review.openstack.org/398058 | 03:08 |
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| openstackgerrit | xing-yang proposed openstack/cinder: WIP: Migrate consistency groups to groups https://review.openstack.org/350350 | 03:38 |
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| openstackgerrit | xianming.mao proposed openstack/cinder: Modify the position of try-except https://review.openstack.org/398149 | 07:20 |
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| openstackgerrit | int32bit proposed openstack/cinder: Add host check while create snapshot https://review.openstack.org/396848 | 07:58 |
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| openstackgerrit | Lee Yarwood proposed openstack/os-brick: encryptors: Mock os_brick.executor correctly https://review.openstack.org/397933 | 09:28 |
| openstackgerrit | Lee Yarwood proposed openstack/os-brick: encryptors: Workaround mangled passphrases https://review.openstack.org/397934 | 09:28 |
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| openstackgerrit | xianming.mao proposed openstack/cinder: Modify the position of try-except https://review.openstack.org/398149 | 11:01 |
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| openstackgerrit | Rodion Tikunov proposed openstack/python-cinderclient: Fix typo in set unicode metadata key https://review.openstack.org/391515 | 11:09 |
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| openstackgerrit | int32bit proposed openstack/cinder: Add host check while create snapshot https://review.openstack.org/396848 | 11:13 |
| openstackgerrit | xianming.mao proposed openstack/cinder: Modify the position of try-except https://review.openstack.org/398149 | 11:14 |
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| openstackgerrit | Erlon R. Cruz proposed openstack/cinder: Introduce Hitachi VSP driver https://review.openstack.org/389377 | 11:18 |
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| erlon-airlong | . | 11:20 |
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| openstackgerrit | Erlon R. Cruz proposed openstack/cinder: [WIP] Introduce Hitachi VSP iSCSI driver https://review.openstack.org/398300 | 11:30 |
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| openstackgerrit | Erlon R. Cruz proposed openstack/cinder: [WIP] Introduce Hitachi VSP iSCSI driver https://review.openstack.org/398300 | 11:35 |
| openstackgerrit | Erlon R. Cruz proposed openstack/cinder: Introduce Hitachi VSP driver https://review.openstack.org/389377 | 11:35 |
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| geguileo | dulek: ping - oslo messaging namespaces | 12:08 |
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| dulek | geguileo: I'm at the meeting, will ping you in 45 minutes. | 12:17 |
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| dulek | geguileo: Right now you can take a look on my yesterday's discussion with sileht: http://eavesdrop.openstack.org/irclogs/%23openstack-oslo/%23openstack-oslo.2016-11-15.log.html#t2016-11-15T09:59:46 | 12:18 |
| geguileo | dulek: Ok | 12:20 |
| geguileo | dulek: I could have saved some time looking into this if I had just pinged you earlier | 12:22 |
| dulek | geguileo: I've took a look on your email - I would want only to switch AMQP message routing somehow, not change anything in the DB. | 12:22 |
| dulek | geguileo: Just RPCServer and RPCClient layers. | 12:22 |
| geguileo | dulek: My results where the same as yours | 12:22 |
| geguileo | dulek: namespaces don't help us | 12:22 |
| geguileo | dulek: Because they route in the process | 12:22 |
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| geguileo | dulek: But let's talk after your meeting | 12:23 |
| geguileo | :-) | 12:23 |
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| dulek | geguileo: Yup! | 12:23 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Make Image Volume Cache cluster aware https://review.openstack.org/386186 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Add more operations to cluster https://review.openstack.org/355968 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Support A/A on Scheduler operations https://review.openstack.org/344226 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: [PoC][Don't review] Testing delay https://review.openstack.org/353069 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Support A/A in attach/detach operations https://review.openstack.org/318573 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Allow triggering cleanup from API https://review.openstack.org/363010 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Support A/A in delete actions and get_capabilities https://review.openstack.org/344225 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Make Replication support Active-Active https://review.openstack.org/381835 | 12:24 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Cosmetic changes to scheduler https://review.openstack.org/346041 | 12:25 |
| openstackgerrit | Gorka Eguileor proposed openstack/cinder: Prevent Active-Active on drivers by default https://review.openstack.org/393460 | 12:25 |
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| openstackgerrit | int32bit proposed openstack/cinder: Add host check while create snapshot https://review.openstack.org/396848 | 12:43 |
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| dulek | geguileo: I'm available now. So right now I'm looking into using topics for routing. | 13:20 |
| dulek | geguileo: The only problem is the fanout message from scheduler, that should go to every backend. | 13:20 |
| dulek | geguileo: And again - I'm looking only on changes to the transport side, nothing about how we're processing host field and how we're saving it in the DB. | 13:20 |
| dulek | geguileo: I think _at least_ A/A code is assuming one process per Manager's instance, so using namespaces and routing in the process doesn't really work for us. | 13:20 |
| dulek | geguileo: Even without clusters there may be even more dragons. :( | 13:20 |
| geguileo | dulek: But why do we want to change the routing we have now? | 13:20 |
| * dulek was writing into the void until IRC reconnected… | 13:20 | |
| dulek | geguileo: Problem is - zmq. | 13:20 |
| dulek | geguileo: oslo.messaging doesn't assume you to mess with host field. | 13:21 |
| dulek | geguileo: It works in RabbitMQ by chance, but in zmq host/server should be set to target hostname. | 13:21 |
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| geguileo | But isn't "server" the same as "topic queue" is oslo messaging? | 13:22 |
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| * geguileo saying it from memory | 13:22 | |
| dulek | geguileo: Well, apparently not. Target for RPCServer routes based on server and topic fields. | 13:23 |
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| dulek | geguileo: Now we're abusing this Target.server, which breaks zmq. | 13:23 |
| geguileo | dulek: Last time I check oslo messaging I arrived at the conclussion that it's toooooooooooooooo restrictive to do anything | 13:24 |
| geguileo | dulek: I had problems with the cluster queues/exchanges | 13:24 |
| dulek | geguileo: Guys were trying to get zmq working by switching this routing to topic *only* for zmq case. But this is ugly, as we're basing our logic on setting of abstraction layer, which basically sucks. | 13:24 |
| dulek | geguileo: Hm, what problem? | 13:25 |
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| geguileo | dulek: I don't remember exactly | 13:25 |
| geguileo | dulek: It was due to the restrictions set on messaging | 13:25 |
| geguileo | dulek: It's intended for a very specific use case | 13:25 |
| geguileo | dulek: There's no way to control exchanges/queues, etc | 13:26 |
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| * geguileo would have to check the code again | 13:26 | |
| dulek | geguileo: BTW - isn't this all implemented for RabbitMQ as oslo.messaging.RPCServer listening on two queues - one server-specific and one topic-specific? | 13:26 |
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| dulek | geguileo: Sure, and I wouldn't oppose to that - that's the purpose of abstraction layer. | 13:26 |
| geguileo | dulek: Ooooh, maybe it was the RPC server limitation | 13:26 |
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| dulek | Anyway getting back to the point - I would like to implement our multibackend routing using oslo.messaging behaviors that aren't RabbitMQ-specific. | 13:28 |
| dulek | geguileo: Right now we're using RabbitMQ backend implementation details. | 13:29 |
| dulek | s/using/relying on | 13:29 |
| geguileo | dulek: This was the problem: https://review.openstack.org/#/c/381835/12/cinder/service.py@262 | 13:29 |
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| geguileo | dulek: That sounds good to me | 13:30 |
| geguileo | dulek: I'm just not too sure that I want that to delay my A/A work another 6 months | 13:30 |
| dulek | geguileo: I believe you have the priority here, so I'm looking for a way that wouldn't affect you. | 13:30 |
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| geguileo | dulek: I wouldn't mind making a few changes if it can save us from the upgrading nightmare later on | 13:31 |
| geguileo | dulek: Do you have a proposal on how to change it to be ZMQ compatible? | 13:31 |
| dulek | geguileo: Oh, this code snippet is interesting, let me take a look. | 13:31 |
| dulek | geguileo: I was only looking at your already merged code. | 13:31 |
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| dulek | geguileo: So maybe I'm missing some relationship here. | 13:32 |
| geguileo | dulek: That code is to create a broadcasting exchange that will go to all the services within a clustered backend | 13:33 |
| dulek | geguileo: Oh, okay, I get it - you want to be able to send fanout messages to all cluster members, but not all volumes, right? | 13:34 |
| dulek | geguileo: Yeah, exactly. | 13:34 |
| geguileo | dulek: Because when we complete a failover we have to tell all the services that the failover has been done | 13:34 |
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| geguileo | dulek: You can also do it to all volumes | 13:34 |
| geguileo | dulek: I just need this additional level of broadcasting | 13:34 |
| geguileo | dulek: Specific to the services in the cluster | 13:34 |
| geguileo | dulek: Because everybody else doesn't care that backend X has been failed over and those services need to point to the new storage site | 13:35 |
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| dulek | geguileo: Yes, yes, I get it. Just members of one cluster/backend should receive it. | 13:35 |
| geguileo | dulek: Yup | 13:36 |
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| dulek | geguileo: And to address all volumes you only need Target(topic='cinder-volume', fanout=True) - we're already calling that in scheduler to get all reports on scheduler start. | 13:36 |
| geguileo | dulek: Yup | 13:37 |
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| geguileo | dulek: If I'm reading this correctly I'm already doing what you wanted me to do... | 13:39 |
| dulek | geguileo: Okay, cool. So we can agree namespaces doesn't work, as inter-process routing could be dangerous, because there probably are assumptions that Managers are working in different processes. | 13:39 |
| geguileo | dulek:yes | 13:39 |
| dulek | geguileo: Yeah, exactly, your code looks more or less like we should do multibackend in the first place. | 13:39 |
| geguileo | dulek: I'm setting the topic with the whole @backend and the server is just using the host part of the host | 13:39 |
| geguileo | dulek: So that patch is already making the change you wanted :-) | 13:40 |
| dulek | geguileo: Miracle! :D | 13:40 |
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| geguileo | Great!!! | 13:41 |
| geguileo | dulek: Funny thing is that I think you can use that same change for the normal topic and it will work | 13:41 |
| dulek | geguileo: Yes and no. Can I keep writing? ;) | 13:42 |
| geguileo | dulek: Ooooooooooooooooooooooooooooooooook ;-) | 13:42 |
| dulek | geguileo: Getting out of cluster RPCServer now, and back to the standard one. | 13:42 |
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| dulek | geguileo: It should be possible to apply your change to standard RPCServer above. | 13:43 |
| dulek | geguileo: + add a legacy RPCServer for compatibility purposes. | 13:43 |
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| geguileo | dulek: Are you sure a legacy one is required? | 13:43 |
| geguileo | dulek: Because I think for rabbit mq this will result in the same addressing | 13:43 |
| dulek | geguileo: Upgrade order tells you that scheduler goes first, and so on, but c-vol can communicate with c-vols. | 13:44 |
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| geguileo | dulek: I think it will work for rabbitmq | 13:44 |
| geguileo | dulek: Regardless of the order you upgrade | 13:44 |
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| dulek | geguileo: So during upgrade you should listen on both Target(server='host', topic='host@backend') and Target(server='host@backend', topic='cinder-volume') | 13:45 |
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| dulek | geguileo: Because oslo.messaging will listen on both queues - topic and server? | 13:45 |
| geguileo | dulek: I think so | 13:46 |
| geguileo | dulek: We would have to check, but I think it would work | 13:46 |
| dulek | geguileo: Still you'll have to listen on both server='host' (new way), and server='host@backend' (old way). | 13:46 |
| geguileo | But you are already listening in host@backend since it's the new topic... | 13:47 |
| dulek | geguileo: Or is "@" special character? Or RabbitMQ is matching queues with regex? | 13:47 |
| geguileo | No, it's not a special character | 13:47 |
| dulek | geguileo: Ah, interesting. I wonder if there isn't something special added to server queues, let me check. | 13:48 |
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| dulek | geguileo: I would need to prefix it with cinder-volume, but it could work… | 13:49 |
| dulek | geguileo: cinder-volume.vagrant-ubuntu-trusty-64.localdomain 0 | 13:49 |
| dulek | geguileo: cinder-volume.vagrant-ubuntu-trusty-64.localdomain 0 | 13:49 |
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| dulek | geguileo: Aw, I mean: | 13:49 |
| dulek | geguileo: cinder-volume.vagrant-ubuntu-trusty-64.localdomain@lvmdriver-1 0 | 13:50 |
| geguileo | dulek: That's what my code is doing | 13:50 |
| geguileo | dulek: topic='%s.%s' % (self.topic, self.cluster) | 13:50 |
| geguileo | lol | 13:50 |
| dulek | geguileo: Oh, right, I've missed it! | 13:50 |
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| geguileo | dulek: I made it so that it would be compatible | 13:50 |
| dulek | geguileo: Okay, so this *could* work, but there's one more problem. | 13:50 |
| geguileo | Oh, no more problems for today!! | 13:51 |
| geguileo | XD | 13:51 |
| dulek | geguileo: Scheduler wants to send fanout to all cinder volumes. It's using fanout to cinder-volume queue now. | 13:51 |
| dulek | geguileo: Idea 1 - make scheduler iterate and send it to every backend. | 13:51 |
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| dulek | geguileo: Idea 2 - additionally listen on cinder-volume. | 13:51 |
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| dulek | 1 is ugly, 2 adds third, required RPCServer. | 13:52 |
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| geguileo | 1 does not work because it doesn't know all available backends | 13:52 |
| dulek | geguileo: What do you think about both? Or am I missing something obvious again. | 13:52 |
| geguileo | 2 is the only option :-( | 13:52 |
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| dulek | Okay. I'll dig into it while writing the code. Thank you very much, this talk was extremely helpful! :) | 13:53 |
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| geguileo | dulek: glad I could help (and I don't have to change my code) :-) | 13:56 |
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| openstackgerrit | morfy proposed openstack/cinder: Cluster volume group fix in lvm https://review.openstack.org/396269 | 14:05 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: VMAX driver - Storage assisted volume migration. https://review.openstack.org/397862 | 14:45 |
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| dulek | geguileo: Ha, I've just hacked something that seems functional in less than an hour. I'll switch to zmq and retest, but I don't think it will explode. | 14:54 |
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| geguileo | dulek: Awesome!!! | 14:55 |
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| Cibo | hello everybody, will cinder meeting be today? | 15:17 |
| dulek | Cibo: Looks like agenda isn't empty, so most probably yes. | 15:18 |
| dulek | Cibo: https://wiki.openstack.org/wiki/CinderMeetings#Next_Cinder_Team_meeting | 15:18 |
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| Cibo | dulek: Ok, Thank you. | 15:27 |
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| smcginnis | geguileo: If you have a moment, it would help if you could update the HA A/A patches in the review etherpad: https://etherpad.openstack.org/p/cinder-spec-review-tracking | 15:39 |
| geguileo | smcginnis: I'll get to it right away :-) | 15:39 |
| smcginnis | geguileo: Thanks! I think that would help get some more reviews going. | 15:40 |
| geguileo | smcginnis: I would settle for "some review" ;-) | 15:40 |
| smcginnis | ;) | 15:42 |
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| geguileo | smcginnis: Done | 15:49 |
| smcginnis | geguileo: Thank you | 15:50 |
| geguileo | np | 15:50 |
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| smcginnis | geguileo: Cleaning things up. This was in the Mitaka section: https://review.openstack.org/#/c/315541/ | 15:52 |
| smcginnis | geguileo: Was that done in another patch, or no longer needed? | 15:53 |
| geguileo | smcginnis: I moved it out of the dependency chain since there were some concerns | 15:53 |
| geguileo | smcginnis: I should probably update it though | 15:54 |
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| geguileo | smcginnis: In summary, it is not needed | 15:54 |
| smcginnis | geguileo: OK, I'll leave the reference to it in there for now. | 15:54 |
| geguileo | smcginnis: you can remove it | 15:54 |
| smcginnis | geguileo: Oh, OK. Then I'll remove it. :) | 15:54 |
| geguileo | thanks | 15:54 |
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| Swanson | Daily beg for reviews... https://review.openstack.org/#/c/396343/ | 15:59 |
| smcginnis | eharney: Was the code for this spec merged? https://review.openstack.org/#/c/320052/ | 15:59 |
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| eharney | smcginnis: nope, still in (minimal) review | 16:00 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: VMAX driver - Create a CG from a source CG https://review.openstack.org/376620 | 16:13 |
| hemna | doink | 16:14 |
| Swanson | hemna is Blair Walsh? | 16:14 |
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| hemna | Chewbacca | 16:15 |
| openstackgerrit | Jon Bernard proposed openstack/cinder: RBD: improve readability in over provisioning tests https://review.openstack.org/391927 | 16:15 |
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| openstackgerrit | Michal Dulko proposed openstack/cinder: Make BackupManager not a SchedulerDependentManager https://review.openstack.org/396264 | 16:18 |
| openstackgerrit | Michal Dulko proposed openstack/cinder: WIP: Use oslo.messaging topics for multibackend https://review.openstack.org/398452 | 16:18 |
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| dulek | smcginnis: Can you take a glance at what I'm trying to do in https://review.openstack.org/398452 ? | 16:29 |
| dulek | smcginnis: I'm starting to wonder if I shouldn't create a spec or at least a blueprint. | 16:29 |
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| Swanson | so did we switch from consistency groups to groups with consistence or what? | 16:30 |
| smcginnis | dulek: I thought there was one out there already for zmq support. | 16:30 |
| smcginnis | Swanson: In process now. | 16:31 |
| dulek | smcginnis: Oh, good point. This patch is however extending the idea from the spec for all RPC backends, without if "zmc://" conditional. | 16:32 |
| Swanson | smcginnis, Actually looking for what we are calling this. | 16:32 |
| smcginnis | dulek: Ah, good. | 16:33 |
| smcginnis | Swanson: Apple crisp | 16:33 |
| Swanson | Well, look for a dell/applecrisp branch. | 16:33 |
| dulek | smcginnis: The reason for that is - we shouldn't really base our logic on abstraction layer implementation details. | 16:33 |
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| smcginnis | dulek: I like that. That was some of the negative feedback on the zmq work is it was too implementation specific. | 16:34 |
| smcginnis | dulek: Quick review, but nothing jumped out at me. | 16:34 |
| smcginnis | dulek: Will be good to see how Jenkins likes it. | 16:34 |
| smcginnis | At least for the tempest and grenade tests like you mention. | 16:35 |
| dulek | smcginnis: Getting back to my question - should I do a spec update, and mention the blueprint in the commit message? | 16:36 |
| dulek | smcginnis: Or a new spec? Or a specless blueprint? | 16:37 |
| smcginnis | dulek: I suppose. Seems minor enough, but I guess if someone goes looking it will be good to have links. | 16:37 |
| smcginnis | dulek: I think the spec update. | 16:37 |
| dulek | smcginnis: Okay, thanks! | 16:37 |
| smcginnis | dulek: Or even just reference that blueprint. Doesn't seem like the effort of creating a new spec would be worth it. | 16:38 |
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| smcginnis | diablo_rojo: Hey, didn't you have a patch for this? https://review.openstack.org/#/c/286234/ | 16:39 |
| Swanson | Dear god please tell me that just reloads the drivers. | 16:42 |
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| diablo_rojo | smcginnis: What do you mean? | 17:06 |
| diablo_rojo | smcginnis: That's the spec, I had seen something you pushed moving it to ocata, but I hadn't gotten started on it yet. | 17:07 |
| Swanson | ESL? | 17:08 |
| smcginnis | diablo_rojo: OK, I thought I might have seen the start of the actual implementation. Must be thinking of something else. | 17:08 |
| smcginnis | English as a Second Language. | 17:08 |
| diablo_rojo | smcginnis ah okay :) It's nearing the top of my todo list. Should be able to get started soon. | 17:08 |
| smcginnis | diablo_rojo: Cool | 17:09 |
| Swanson | I see 10.0.0.0b1 is out. | 17:09 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: VMAX driver - Create a CG from a source CG https://review.openstack.org/376620 | 17:26 |
| openstackgerrit | Helen Walsh proposed openstack/cinder: VMAX driver - Storage assisted volume migration. https://review.openstack.org/397862 | 17:26 |
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| nikeshm | hi | 17:47 |
| nikeshm | report_discard_supported is not supported in liberty r8 | 17:47 |
| nikeshm | it is supported mitaka onwards r8 | 17:47 |
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| patrickeast | nikeshm: thats correct, the shared config option and nova side of the changes didn't land until mitaka | 18:09 |
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| nikeshm | thanks | 18:10 |
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| openstackgerrit | Tom Swanson proposed openstack/cinder: Dell SC: Reject thaw call when backend is failed over https://review.openstack.org/396343 | 18:44 |
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| openstackgerrit | Walter A. Boring IV (hemna) proposed openstack/cinder: ibm_storage driver: Added fczm decorators https://review.openstack.org/394655 | 18:49 |
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| openstackgerrit | Tom Swanson proposed openstack/cinder: Dell SC: Reject thaw call when backend is failed over https://review.openstack.org/396343 | 19:19 |
| smcginnis | Anyone looked into this? https://bugs.launchpad.net/cinder/+bug/1642111 | 19:21 |
| openstack | Launchpad bug 1642111 in Cinder "create lvm volume from snapshot fails with "device-mapper: reload ioctl on (252:4) failed: Invalid argument"" [Undecided,Confirmed] | 19:21 |
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| smcginnis | Something change in lvchange on Xenial? | 19:22 |
| smcginnis | Hmm, https://access.redhat.com/solutions/21240 | 19:22 |
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| smcginnis | hemna: You were fighting some xenial issues, right? Seen anything with the lvchange command with device-mapper? | 19:34 |
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| openstackgerrit | Erlon R. Cruz proposed openstack/cinder: Gate migration tests: Add Cinder tempest hook https://review.openstack.org/381736 | 19:46 |
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| hemna | I had problems with vagrant and xenial due to the change in ethernet naming | 19:58 |
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| hemna | are we seeing this in the lvm code in cinder ? | 19:59 |
| smcginnis | hemna: Yep. Lot's of gate failures popping up. | 20:00 |
| hemna | :( | 20:00 |
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| hemna | heading to lunch...bbaib | 20:01 |
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| mriedem | i'm having a hell of a time sorting out what a boot from volume test in tempest is failing with NFS backed cinder | 20:42 |
| mriedem | the test fails when creating the volume, | 20:43 |
| mriedem | the volume goes to ERROR state | 20:43 |
| mriedem | and it's trying to create the volume from a given image | 20:43 |
| smcginnis | mriedem: Just a plain old volume create on NFS? | 20:43 |
| mriedem | the POST request to create the volume is req-1614c0df-7216-4683-bf79-2180582b54cb in http://logs.openstack.org/87/395887/4/check/gate-tempest-dsvm-full-devstack-plugin-nfs-nv/817e301/logs/screen-c-vol.txt.gz | 20:43 |
| mriedem | smcginnis: yes | 20:43 |
| mriedem | there are clone errors all over c-vol but they aren't for that same request id | 20:44 |
| smcginnis | git rm cinder/volume/drivers/nfs.py | 20:44 |
| mriedem | looks like the volume create gets rescheduled 3 times and then fails, for whatever reason | 20:44 |
| mriedem | and there are stacktraces like this http://logs.openstack.org/87/395887/4/check/gate-tempest-dsvm-full-devstack-plugin-nfs-nv/817e301/logs/screen-c-vol.txt.gz#_2016-11-13_15_37_51_622 | 20:45 |
| mriedem | but i thought a clone was when you create a new volume from an existing volume | 20:45 |
| mriedem | in this case it should just be a new volume created from a backing image | 20:45 |
| smcginnis | mriedem: Ah. Image caching has been enabled by default now. So it will try to create a volume of the image, then just clone the volume on subsequent requests so it doesn't need to download again. | 20:46 |
| mriedem | so basically, image cache in cinder can't be used with NFS | 20:46 |
| mriedem | b/c it triggers the clone which isn't implemented | 20:46 |
| smcginnis | mriedem: Yep, that appears to be the case. I just checked out the nfs code. | 20:47 |
| Swanson | Ah ha! Image caching is on by default now? | 20:47 |
| smcginnis | Swanson: Yep. It's all patrickeast's fault. | 20:47 |
| Swanson | This why I get an extra volume on first create? | 20:47 |
| smcginnis | Swanson: That'd do it. | 20:47 |
| mriedem | shit balls | 20:47 |
| mriedem | ok, well that does it | 20:48 |
| mriedem | i was really wondering why this create volume part of tempest was failing on a clone | 20:48 |
| smcginnis | mriedem: Odd though, I thought the behavior was supposed to be to fall back if it couldn't get the clone. | 20:48 |
| mriedem | when clone has nothing to do with the test | 20:48 |
| mriedem | smcginnis: _create_image_cache_volume_entry handles CinderException, not NotImplementedError | 20:50 |
| mriedem | otherwise it would just log a warning and move on | 20:50 |
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| mriedem | shouldn't that code check if the volume driver is an instance of CloneableImageVD ? | 20:51 |
| mriedem | well let me report a cinder bug first | 20:52 |
| Swanson | jgriffith, Per our convo the other day image caching is on by default now. That would be where my extra volume came from. Doodle doodle dee wubba wubba wubba | 20:52 |
| mriedem | btw, is the image caching on by default a cinder default option thing or a devstack thing? | 20:53 |
| smcginnis | mriedem: devstack | 20:53 |
| mriedem | # Enable the image volume cache for this backend. (boolean value) #image_volume_cache_enabled = false | 20:53 |
| mriedem | fun.... | 20:54 |
| mriedem | https://github.com/openstack-dev/devstack/commit/dddb2c7b5f85688de9c9b92f025df25d2f2d3016 | 20:54 |
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| mriedem | alright here you go https://bugs.launchpad.net/cinder/+bug/1642394 | 21:02 |
| openstack | Launchpad bug 1642394 in Cinder "NFS: Creating multiple volumes from the same image fails when image caching is turned on by default" [Undecided,New] | 21:02 |
| smcginnis | mriedem: Thanks | 21:02 |
| mriedem | btw, the only reason i care about getting the nfs job working is because of some libvirt nfs volume driver refactoring going on in nova | 21:04 |
| mriedem | i would like to see the nfs job passing on nova changes like that in the experimental queue | 21:05 |
| mriedem | if you guys just want to drop nfs from cinder and nova, sure, let's go nuts | 21:05 |
| mriedem | this is also wrong btw https://wiki.openstack.org/wiki/CinderSupportMatrix | 21:05 |
| smcginnis | mriedem: If we can't figure out a fix quickly I'll put up a revert for that devstack change. | 21:05 |
| mriedem | says that the nfs backend has supported clone since grizzly | 21:05 |
| mriedem | smcginnis: you don't really need to revert the devstack change, it's fine for lvm | 21:05 |
| smcginnis | mriedem: That's one of the weird things here. I thought it did. | 21:05 |
| mriedem | i can workaround this in the devstack-plugin-nfs repo | 21:06 |
| smcginnis | mriedem: Well, if we can't handle this for all backends, I kind of think we shouldn't enable it by default. | 21:06 |
| smcginnis | mriedem: But we'll see. | 21:06 |
| mriedem | btw, clone is listed in defcore | 21:07 |
| smcginnis | And snapshots... | 21:07 |
| mriedem | https://github.com/openstack/defcore/blob/master/2016.08.json#L2636 | 21:07 |
| mriedem | yeah, so if you're running an NFS backed cloud i guess you're not refstack compliant | 21:07 |
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| smcginnis | Right now, that is correct. We've been working on it, but starting to have some doubts. | 21:08 |
| mriedem | https://wiki.openstack.org/wiki/CinderSupportMatrix#OpenStack_Block_Storage_.28aka_Cinder.29_Drivers updated btw | 21:08 |
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| * patrickeast catches up on scrollback | 21:15 | |
| patrickeast | smcginnis: mriedem: oh weird, yea clone was supposed to be something *all* drivers supported | 21:16 |
| eharney | that this is in progress for NFS shouldn't really be news | 21:16 |
| eharney | *cough* block device driver *cough* | 21:17 |
| patrickeast | heh good point | 21:17 |
| openstackgerrit | Sean McGinnis proposed openstack/cinder: Handle NotImplementedError for image cache cloning https://review.openstack.org/398581 | 21:17 |
| smcginnis | eharney: I could have sworn it supported clone but not snapshot. | 21:18 |
| patrickeast | ^ thats what i thought | 21:18 |
| eharney | smcginnis: if it supports clone of attached volumes, it's corrupting data | 21:18 |
| patrickeast | clone should be easy... just cp | 21:18 |
| smcginnis | eharney: But non-attached should be fine. | 21:18 |
| smcginnis | eharney: Just can't do the attached-so-lets-snap-and-clone-from-that case. | 21:19 |
| smcginnis | Well, quick stab at working around it. ^^ | 21:19 |
| smcginnis | Not set up to actually test that at the moment, so if someone else is, that would be grand. | 21:19 |
| smcginnis | Would also be grand if we had an nfs test in the gate. | 21:19 |
| eharney | it's in "check experimental" | 21:20 |
| smcginnis | eharney: Oh, because we can't do the snap tests. | 21:20 |
| mriedem | eharney: that's what i'm working on | 21:20 |
| smcginnis | I'm kind of paying attention I guess. | 21:20 |
| mriedem | eharney: https://review.openstack.org/#/c/395887/ | 21:20 |
| mriedem | -1 on the PTLs patch | 21:21 |
| mriedem | so sweet | 21:21 |
| eharney | i looked at the block device driver... it does do clones in a way that corrupt data from what i can tell. at least it can run tempest... | 21:21 |
| smcginnis | mriedem: :) | 21:21 |
| smcginnis | mriedem: Tests schmests | 21:22 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: VMAX driver - Storage assisted volume migration. https://review.openstack.org/397862 | 23:08 |
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| openstackgerrit | Merged openstack/cinder: Add VolumeAttachStatus Enum https://review.openstack.org/290885 | 23:46 |
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