Friday, 2019-10-11

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openstackgerrithaixin proposed openstack/cinder master: Add volume type name and description check when update volume type  https://review.opendev.org/68720201:59
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openstackgerritBrendan Shephard proposed openstack/cinder master: Remove references to directly editing files in /usr/share/openstack-tripleo-heat-templates  https://review.opendev.org/68802302:41
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openstackgerritPurandhar Sairam Mannidi proposed openstack/cinder master: Remove references to directly editing files in /usr/share/openstack-tripleo-heat-templates  https://review.opendev.org/68802305:41
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openstackgerrithaixin proposed openstack/cinder master: Add volume type name and description check when update volume type  https://review.opendev.org/68720207:59
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openstackgerritNaoki Saito proposed openstack/cinder stable/stein: NEC Driver: Python3 compatibility  https://review.opendev.org/68807808:57
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hemnamep13:27
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openstackgerritAlan Bishop proposed openstack/cinder stable/queens: Add context to cloning snapshots in remotefs driver  https://review.opendev.org/68813114:05
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ZaraI have a general question-- if a volume is in a pool, are there any circumstances where it might consume quota from outside the pool? I'd guess not (seems like that's... the point of a pool xD) but I'm not an expert so just wanna double-check. :)14:26
Zara(also, hi! :D)14:27
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smcginnisZara: I suppose it depends on how that particular storage backend works, but I would not expect it to consume space from anywhere other than that pool.14:29
smcginnisZara: (hi! :) )14:30
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clarkbnot sureif relatedbut the infrateam has seen cinders quota tracking be completely wrong14:33
clarkbmnaser thinks it is due to cinder doing deltaupdates on the usage values rather than audits with an absolutevalue update14:34
smcginnisWe had a lot of quota issues before switching to that. :/14:34
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clarkbwell cinder reports 2x usage for infra now in vexxhost :/14:35
clarkbthis is one of thosebugs high on the list of "we are dogfooding openstack and it being unreliable impacts our ability to run test jobs" at feature freeze time14:36
clarkbas it means wehit quota very early in clouds and cantboot moreinstances14:37
Zarathanks :) (we had an issue with a leaking volume consuming quota, though we didn't get to the bottom of it (some suspicious messaging timeouts), but for now just hoping pools can serve as a workaround)14:38
smcginnisI don't think I've seen a bug filed on this quota issue yet. Would be great to get it created and start capturing data that can help track down the root cause.14:39
clarkbas I mentioned in the past I dont really have any data other than "quota is 2x what volume list shows"14:40
clarkbI have been hoping mnaser will have time to file a bug from the cloud side14:40
Zara(I've held off because idk if it's a cinder thing or a local setup thing, and I can't reproduce or supply logs)14:40
Zara(so would be the best bug report ever :D)14:41
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clarkbif the bug wont get marked invalid or incomplete I can file it with that minimal info14:42
smcginnisI guess it's a start.14:43
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clarkbsmcginnis: heh its actually inaccurate in the opposite direction right now14:53
clarkbwe are using more quota than the quota usage reports14:53
smcginnisBonus time. :]14:54
clarkbI think mnaser must've done some cleanup on the cloud side14:56
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tobias-urdinsmcginnis: while you're at quotas and stuff, we've a bug where you manage an existing volume, it fails, then you delete that failed volume quota usage gets added but is not cleaned15:01
tobias-urdinhave you seen that somewhere or should i continue to trace and file a bug?15:01
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smcginnistobias-urdin: Please file a bug. I had not heard of that one.15:06
tobias-urdinack15:06
smcginnis Thanks!15:06
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tobias-urdinsmcginnis: https://bugs.launchpad.net/cinder/+bug/1847791 will fill in if i find out more, will do some more checking on monday15:19
openstackLaunchpad bug 1847791 in Cinder "Manage existing volume failures does not clean quota usage" [Undecided,New]15:19
smcginnistobias-urdin: Thanks!15:19
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openstackgerritHelen Walsh proposed openstack/cinder master: PowerMax Driver - QoS calculation failure  https://review.opendev.org/68815916:06
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mnaserclarkb: did it get doubled again?!?18:06
clarkbmnaser: no18:06
clarkbmnaser: I was referring to the pre ansiblefest state18:06
clarkbmnaser: basically I don't want it to happen anymoer so if we can file a bug with cinder with more info than "quota is wrong" that would be excellent :)18:07
mnaserOh, okay.  I've done a bunch of changes to maybe help minimize the risk of that now18:07
mnaserYeah, I think it might have had to do with infra issues but cinder being aware about it would be nice18:07
mnaserSorry I'm on mobile right now so can't engage much more in all of this18:08
smcginnismnaser: Any details that could help us make the situation better would be great. Not much we can do if it's external factors, but if there's a way we can help prevent it we'll try.18:11
mnasersmcginnis: generally the nova team has pretty much focused on trying to make the code not racy18:15
mnaserLike there must be some sort of code that doubles it. Perhaps a lock or something to read quota from db before committing18:16
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smcginnisThere were a lot of improvements doing just that a few releases ago, so any kind of logs or data that can help track down where there's still a window would be good.18:16
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openstackgerritMerged openstack/cinder stable/train: Move hacking checks to tests dir  https://review.opendev.org/68764518:27
openstackgerritMerged openstack/cinder stable/stein: NEC Driver: Python3 compatibility  https://review.opendev.org/68807818:27
openstackgerritMerged openstack/cinder stable/ocata: Fix ceph: only close rbd image after snapshot iteration is finished  https://review.opendev.org/67627418:27
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idlemindsilly question - can i have present a cinder volume over iscsi for something other than nova to connect to?21:41
smcginnisidlemind: Yep. We've done some work to be able to use cinder as an independent service for basic storage management. So ironic nodes or just your local hosts that you want to configure storage for.21:47
idlemindsmcginnis cool, any doc link in particular i should focus on reading? i'm struggling to find the how21:48
smcginnisidlemind: Not sure if we have any clear "here are the steps to use Cinder alone" kind of docs, but maybe these can get you started:21:50
smcginnishttps://thenewstack.io/deploying-cinder-stand-alone-storage-service/21:50
smcginnishttps://gorka.eguileor.com/standalone-cinder/21:50
idlemindcool thanks, and this type would work while cinder is part of a complete openstack as well but maybe just want to present a vol as iscsi as a custom case for certain things as well right?21:51
smcginnisidlemind: Not sure if it would be useful, but you can also check out python-brick-cinderclient-ext.21:51
smcginnisidlemind: Correct.21:51
idlemindvery cool thanks21:51
idlemindlooks like i have my weekend reading and lab21:52
smcginnisNo problem. Good luck. ;)21:52
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