Thursday, 2016-12-01

mnestratov|3and glance doesn't detect image format it uses what a user tells it00:00
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DuncanTHmmm. Ok, I'll have a think and comment on the review00:01
DuncanTIt's a bit of a mess by the sound of it00:01
mnestratov|3DuncanT: yeah it is00:01
mnestratov|3thanks anyway00:01
DuncanTI guess in an ideal fix, I'd fix things so that they were aliases for each other everywhere00:02
DuncanTmnestratov|3: Does that sound reasonable?00:02
mnestratov|3DuncanT: in ideal world yes :)00:03
DuncanTmnestratov|3: Thanks, that provides some more context00:04
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mnestratov|3but I'll have tough talks with nova guys to persuade them to add an alias )00:04
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DuncanTWell, adding the alias in cinder is not a shoe-in either00:06
mnestratov|3DuncanT: agree00:07
mnestratov|3i'm disconnecting sorry it's pretty late here00:08
DuncanTHere too :-)00:08
mnestratov|33 am?00:08
DuncanTMidnight00:09
mnestratov|3good night then00:09
DuncanTAnd you00:09
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openstackgerritwangxiyuan proposed openstack/python-cinderclient: Support Keystone V3 with HttpClient  https://review.openstack.org/40457201:01
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openstackgerritwangxiyuan proposed openstack/python-cinderclient: Support Keystone V3 with HttpClient  https://review.openstack.org/40457201:05
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openstackgerritwangxiyuan proposed openstack/python-cinderclient: Support Keystone V3 with HttpClient  https://review.openstack.org/40457201:15
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openstackgerritChuck Fouts proposed openstack/cinder: [debug] do not merge  https://review.openstack.org/39788501:27
openstackgerritYingzhe Zeng proposed openstack/cinder: Fix snapshot update exception while creating cgsnapshot  https://review.openstack.org/40503601:31
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openstackgerritwangxiyuan proposed openstack/cinder: [WIP]Add quota limit check and enhance roll back for cg create  https://review.openstack.org/40506902:58
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openstackgerritwanghao proposed openstack/cinder: Clean up image tmp file if c-vol gets restarted  https://review.openstack.org/22508103:03
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openstackgerrithaobing proposed openstack/cinder: Correct the attributes of volume which created by clone a CG  https://review.openstack.org/40477603:11
openstackgerrithaobing proposed openstack/cinder: Correct the attributes of volume which created by clone a CG  https://review.openstack.org/40477603:15
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openstackgerritLisaLi proposed openstack/cinder: Prohibit creating volume from source with dif encryptions  https://review.openstack.org/40508604:02
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openstackgerritLisaLi proposed openstack/cinder: Prohibit creating volume from source with dif encryptions  https://review.openstack.org/40508605:40
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openstackgerritLisaLi proposed openstack/cinder: Calculate virtual free capacity and notify  https://review.openstack.org/20692306:20
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openstackgerritwangxiyuan proposed openstack/cinder: Add quota limit check and enhance roll back for cg create  https://review.openstack.org/40506906:54
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openstackgerritMattan Shalev proposed openstack/cinder: Added initial backend ISCSI driver for Reduxio  https://review.openstack.org/33203207:01
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openstackgerritWilliam Durairaj proposed openstack/cinder: 3PAR: Fix performance issue with volume cloning  https://review.openstack.org/40388207:20
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openstackgerritMerged openstack/cinder: Remove Unicode byte order mark  https://review.openstack.org/40498507:36
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openstackgerritNishant Kumar proposed openstack/cinder: Reuse already existing groups in tempest plugin  https://review.openstack.org/37580807:59
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openstackgerritPranali Khatode proposed openstack/cinder: Manage: Restrict volume creation for unsupported host format  https://review.openstack.org/40194608:04
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openstackgerritLisaLi proposed openstack/cinder: Update detach_volume() with versionedobjects  https://review.openstack.org/26860908:13
openstackgerritLisaLi proposed openstack/cinder: Update attach_volume() with versionedobjects  https://review.openstack.org/26860808:13
openstackgerritAlon Marx proposed openstack/cinder: Support FICON-attached ECKD volumes on System z  https://review.openstack.org/34292108:16
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openstackgerritBhagyashri Shewale proposed openstack/cinder: Replace functions 'Dict.get' and 'del' with 'Dict.pop'  https://review.openstack.org/36093508:18
openstackgerritMattan Shalev proposed openstack/cinder: Added initial backend ISCSI driver for Reduxio  https://review.openstack.org/33203208:18
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openstackgerritAlon Marx proposed openstack/cinder: ibm_storage driver: Added fczm decorators  https://review.openstack.org/39465508:24
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guyr-infinidatpatrickeast: the slave is a 12 core machine :\08:37
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smcginnisguyr-infinidat: Are you hitting issues from too high of concurrent tests running?08:44
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openstackgerritSoffie Huang proposed openstack/cinder: FalconStor: Restore option "san_secondary_ip"  https://review.openstack.org/35583608:45
guyr-infinidatsmcginnis: I'm having what looks like networking issues: Connection to the 172.24.5.10 via SSH timed out in three tests08:45
guyr-infinidatI put all the details in https://bugs.launchpad.net/tempest/+bug/164570908:45
openstackLaunchpad bug 1645709 in tempest "SSH timed out in three tempest tests" [Undecided,New]08:45
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smcginnisguyr-infinidat: You probably need to change your CI to run with a lower concurrency. You can pass the option --concurrency=x to tell it how many to run at once.08:47
guyr-infinidatpatrickeast said he's having this issue as well, suggested it may be due to load.08:47
smcginnisguyr-infinidat: Things used to fall apart if you went over 4, though I think that's gotten much better.08:47
smcginnisguyr-infinidat: I would still start with 4 and see how that goes before trying to increase it any more than that.08:47
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guyr-infinidatsmcginnis: I'll try that now. though I see other CIs running with 8 (e.g. solidfire08:48
smcginnisguyr-infinidat: Yeah, you may be able to do more. But 4 might be a good place to start.08:49
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openstackgerritLisaLi proposed openstack/cinder: Prohibit creating volume from source with dif encryptions  https://review.openstack.org/40508608:53
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openstackgerritxianming.mao proposed openstack/cinder: Use method is_valid_boolstr from oslo_utils  https://review.openstack.org/38572108:56
openstackgerritxianming.mao proposed openstack/cinder: cors: update default configuration  https://review.openstack.org/39357708:56
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guyr-infinidatsmcginnis: assuming all modern processors have hyperthreading, wouldn't it make since to use less than half of nproc as the concurrency parameter? leave a core or two for something other than the tests?08:57
guyr-infinidate.g. routing08:57
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smcginnisguyr-infinidat: Yeah, probably.09:00
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openstackgerritxianming.mao proposed openstack/cinder: Increase existence check for image when create volumes  https://review.openstack.org/40115509:07
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openstackgerritKushal Wathore proposed openstack/cinder: backup of active 3par ISCSI bootable volume fails  https://review.openstack.org/40128509:20
openstackgerritYingzhe Zeng proposed openstack/cinder: Swap volume type for migration started by retype  https://review.openstack.org/40521309:20
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openstackgerritMerged openstack/cinder: Support A/A in attach/detach operations  https://review.openstack.org/31857309:22
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openstackgerritPeter Wang proposed openstack/cinder: Move VNX driver to dell_emc folder  https://review.openstack.org/40522309:31
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openstackgerrithaobing proposed openstack/cinder: Correct the attributes of volume which created by clone a CG  https://review.openstack.org/40477609:40
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openstackgerritWilliam Durairaj proposed openstack/cinder: 3PAR: Fix performance issue with volume cloning  https://review.openstack.org/40388209:45
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openstackgerritAdriano Freires Rosso proposed openstack/cinder: HNAS: Add list manageable volume/snapshots  https://review.openstack.org/38820310:07
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openstackgerritPeter Wang proposed openstack/cinder: Move VNX driver to dell_emc folder  https://review.openstack.org/40522310:22
winston-ddulek: i've seen similar cases before, not sure how that's happening10:22
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dulekwinston-d: Merge conflicts or HGST CI succeeding for broken patches?10:22
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openstackgerritIvan Kolodyazhny proposed openstack/cinder: Replace assertDictMatch with assertDictEqual method in tests  https://review.openstack.org/40525810:25
openstackgerritIvan Kolodyazhny proposed openstack/cinder: Refactor test_volume_actions to use ddt library  https://review.openstack.org/39911410:25
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openstackgerritGorka Eguileor proposed openstack/cinder: Make Image Volume Cache cluster aware  https://review.openstack.org/38618610:29
openstackgerritGorka Eguileor proposed openstack/cinder: Add replication info to generate_driver_list  https://review.openstack.org/40385410:29
openstackgerritGorka Eguileor proposed openstack/cinder: Add more operations to cluster  https://review.openstack.org/35596810:29
openstackgerritGorka Eguileor proposed openstack/cinder: Add active/active info to generate_driver_list  https://review.openstack.org/40418010:29
openstackgerritGorka Eguileor proposed openstack/cinder: Support A/A on Scheduler operations  https://review.openstack.org/34422610:29
openstackgerritGorka Eguileor proposed openstack/cinder: [PoC][Don't review] Testing delay  https://review.openstack.org/35306910:29
openstackgerritGorka Eguileor proposed openstack/cinder: Fix replication freeze mechanism  https://review.openstack.org/40292310:29
openstackgerritGorka Eguileor proposed openstack/cinder: Move service and cluster creation in test to utils  https://review.openstack.org/40292210:29
openstackgerritGorka Eguileor proposed openstack/cinder: Allow triggering cleanup from API  https://review.openstack.org/36301010:29
openstackgerritGorka Eguileor proposed openstack/cinder: Support A/A in delete actions and get_capabilities  https://review.openstack.org/34422510:29
openstackgerritGorka Eguileor proposed openstack/cinder: Make Replication support Active-Active  https://review.openstack.org/38183510:29
openstackgerritGorka Eguileor proposed openstack/cinder: Cosmetic changes to scheduler  https://review.openstack.org/34604110:29
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openstackgerritChangBo Guo(gcb) proposed openstack/cinder: test: fix wrong usage of config option in test_window  https://review.openstack.org/33487710:51
openstackgerritChangBo Guo(gcb) proposed openstack/cinder: Fix wrong usage of config option gpfs_images_share_mode  https://review.openstack.org/33486810:51
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dulekgeguileo: How much A/A and replication fixes patches are connected? If I'm reviewing A/A chain, should I look also at something in Replication v2.1 chain?10:54
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openstackgerritPeter Wang proposed openstack/cinder: Move VNX driver to dell_emc folder  https://review.openstack.org/40522311:02
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openstackgerritPeter Wang proposed openstack/cinder: VNX: Add sync migration support  https://review.openstack.org/40527911:06
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openstackgerritzhangdaolong proposed openstack/cinder: RBD driver doesn't flattern image when clone depth > configured value.  https://review.openstack.org/40191411:10
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pranalikgeguileo:Hi,I have an updated patch ready on my local machine which bumps a microversion for changing the status code from 404 to 400 . Should I submit it https://review.openstack.org/#/c/401941/1 or I need to discuss this issue more in the cinder meeting.11:23
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geguileodulek: No, they are not connected11:54
geguileodulek: They interefere one with the other11:54
geguileodulek: So the one that merges first will "break" the other patches11:54
geguileodulek: And will make me make changes to fix the merge conflict11:54
dulekgeguileo: Oh, okay. Anything in particular I should be aware if I haven't looked at replication ones yet?11:55
geguileodulek: The only thing is that in the A/A patches I have included the replication A/A patch as well as the freeze mechanism patch11:55
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geguileodulek: No, the A/A stuff is self contained, even the A/A replication patch (it has a spec explaining what it does)11:55
dulekgeguileo: Okay, I'll continue to review the A/A chain!11:56
geguileodulek: Thanks!!11:56
geguileopranalik: I brought it up in the meeting yesterday11:56
geguileopranalik: You should review the logs of the meeting11:56
geguileopranalik: But DuncanT later disagreed11:57
geguileopranalik: I don't know how that ended since he talked with scottda11:57
* geguileo goes out to have lunch11:57
DuncanTI missed the meeting... The discussion in the meeting wasn't very informative. It said standardisation is good, but didn't talk about the costs11:59
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DuncanTWe've got no standardisation across OpenStack. The api group's recommendation has no strong justification, and zero advantages unless there's a strong cross project agreement to move in that direction, which there isn't, for sensible reasons12:00
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openstackgerritxianming.mao proposed openstack/python-cinderclient: Replace six.iteritems(iter) with iter.items()  https://review.openstack.org/40534412:23
openstackgerritxianming.mao proposed openstack/cinder: Use method is_valid_boolstr from oslo_utils  https://review.openstack.org/38572112:23
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openstackgerritxianming.mao proposed openstack/python-cinderclient: Replace six.iteritems(iter) with iter.items()  https://review.openstack.org/40534412:25
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openstackgerritArne Recknagel proposed openstack/os-brick: Code cleanup in initiatorlinuxfc.py  https://review.openstack.org/40534812:32
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winston-dDuncanT: I agree. So lower standardisation's priority (implement via new api mircoversion) would be a reasonable choice?12:47
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winston-dWe have other important tasks to do.12:47
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DuncanTwinston-d: Standardisation of response codes should be dumped unless there's a strong cross-project push for it IMO. There's no gain without that, and there's a definite cost for any API consumer who wants to use a later microversion13:32
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winston-dBy API consumer's cost for using later microversion, do you mean they have to switch to new response code even if they don't want to?13:36
openstackgerritPony Chou proposed openstack/cinder: Add QNAP ES Storage Driver  https://review.openstack.org/30987213:36
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dulekgeguileo: I've seen some strange stuff in Gerrit lately.14:07
geguileodulek: This is the first crazy thing I've seen14:07
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dulekgeguileo: Like I've mentioned previously - patches marked as conflicted without actually being in merge conflict.14:07
geguileodulek: I don't know if this is gerrit or git review's fault14:07
geguileodulek: But I get worried when what I submit is not what appears in gerrit14:07
geguileoMostly because I never check it14:08
openstackgerritSamantha Blanco proposed openstack/cinder: Fixes hpelefthandclient AttributeError  https://review.openstack.org/39389414:08
geguileodulek: And it tells me there are no differences!!!14:09
dulekgeguileo: And about that test - you're right, I've looked at diff between 26 and 28, that's why I was mistaken.14:10
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geguileodulek: That's what happened to me in the review of your patch yesterday  XD14:10
geguileoSo I can relate14:10
geguileo;-)14:10
openstackgerritAndrei Perepiolkin proposed openstack/cinder: Add Open-E driver for JovianDSS storage with iSCSI support.  https://review.openstack.org/39996714:11
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geguileodulek: Oh, I read it wrong the hash is the same, but not the contents14:12
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DSpatrickeast: hi, one test in jenkins slave is always failing can you please me http://paste.openstack.org/show/591129/14:31
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prometheanfiresmcginnis: I'm here as well, but stable/newton and volume.filters is there, even made sure it's readable by the cinder user14:38
DShi, i am getting this error while runing tempest http://paste.openstack.org/show/591139/14:43
openstackgerritPeter Wang proposed openstack/cinder: Move VNX driver to dell_emc folder  https://review.openstack.org/40522314:46
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CiboDS: can you please provide additional info? some tempest output, nova cinder or whatever involved?15:12
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patrickeastDS: if i had to guess you didn't set the "vendor_name" or "storage_protocol" correctly in tempest.conf15:14
patrickeastDS: look at your c-sch log for that test, id bet it fails to find a matching host15:15
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DSpatrickeast: ok thanks15:16
DSpatrickeast: thank you very munch how it has passed15:18
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patrickeastDS: np15:20
patrickeastgeguileo: hey, let me know if/when you have a few min to chat about replication stuff15:20
geguileopatrickeast: I'm in a meeting, I'll be available in 40 minutes15:21
geguileopatrickeast: Will ping you then :-)15:21
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patrickeastgeguileo: sounds good15:21
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openstackgerritChuck Fouts proposed openstack/cinder: [debug] do not merge  https://review.openstack.org/39788515:24
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openstackgerritGorka Eguileor proposed openstack/cinder: Make Image Volume Cache cluster aware  https://review.openstack.org/38618615:41
openstackgerritGorka Eguileor proposed openstack/cinder: Add replication info to generate_driver_list  https://review.openstack.org/40385415:41
openstackgerritGorka Eguileor proposed openstack/cinder: Add more operations to cluster  https://review.openstack.org/35596815:41
openstackgerritGorka Eguileor proposed openstack/cinder: Add active/active info to generate_driver_list  https://review.openstack.org/40418015:41
openstackgerritGorka Eguileor proposed openstack/cinder: [PoC][Don't review] Testing delay  https://review.openstack.org/35306915:41
openstackgerritGorka Eguileor proposed openstack/cinder: Fix replication freeze mechanism  https://review.openstack.org/40292315:41
openstackgerritGorka Eguileor proposed openstack/cinder: Move service and cluster creation in test to utils  https://review.openstack.org/40292215:41
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openstackgerritGorka Eguileor proposed openstack/cinder: Allow triggering cleanup from API  https://review.openstack.org/36301015:41
openstackgerritGorka Eguileor proposed openstack/cinder: Make Replication support Active-Active  https://review.openstack.org/38183515:41
openstackgerritGorka Eguileor proposed openstack/cinder: Cosmetic changes to scheduler  https://review.openstack.org/34604115:41
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geguileopatrickeast: ping - replication15:45
patrickeastgeguileo: hey15:46
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patrickeastgeguileo: so i guess the main thing i wanted to sync up on was with the failback/promote stuff15:46
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geguileopatrickeast: Yeah, the failback is done15:47
geguileopatrickeast: I mean, it works for some drivers and other just raise an exception15:47
geguileopatrickeast: Which is OK15:47
patrickeastgeguileo: you mean the 'default' backend thing?15:47
geguileoYes15:47
geguileoI have updated the replication stuff to be consistent and updated the devref to explain expected behavior15:48
patrickeastgotcha15:48
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geguileoSo the only remaining thing would be the promotion15:48
patrickeastyep, so if i remember correctly there was some agreement at the summit on having the ability to mark some backend as a primary15:49
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patrickeastand there is the spec we already merged for it around too15:50
geguileopatrickeast: Yeah, but I've been thinking about it and I think it gets tricky15:50
patrickeastdefinitely :(15:50
patrickeastpersisting that and not getting things out of sync or confusing for the operator seems hard doing that15:50
geguileoYeah, that's the biggest part15:51
geguileoI begun thinking about it and saw some issues15:51
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patrickeastgeguileo: so i was looking at https://review.openstack.org/#/c/312591/ again and i'm thinking we might want those api's either way15:52
patrickeastgeguileo: as sort of a reset-state for replication15:53
geguileopatrickeast: I saw some issues with that spec15:53
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* geguileo trying to remember what it was15:53
patrickeastgeguileo: iirc it doesn't cover all the use-cases we wanted15:53
patrickeastgeguileo: and it doesn't ping drivers to let them know what happened as-is15:54
patrickeastgeguileo: its just a db swap15:54
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patrickeastgeguileo: so i think with that one you would have to run the command and then restart c-vol for the driver to pick up the new active backend id at initialize time15:54
patrickeastwhich kinda sucks15:54
geguileoYeah, that's a big problem15:55
patrickeastbut the idea of having that type of api to just say "swap this one to be primary now, and start replicating again" is ideal15:56
patrickeastthe target=default thing almost does the same thing i guess15:56
geguileopatrickeast: https://akrog.github.io/barcelona_replication_ds/#815:57
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patrickeastgeguileo: ah yea, perfect15:58
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geguileopatrickeast: The issue I see is that we either ignore the configuration file and use the DB, or force that the config needs to be updated at the same time that the command is issued, right?15:59
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patrickeastgeguileo: yea pretty much, and I don't know about you but i'm pretty hesitant about doing things that don't match the config file16:00
geguileopatrickeast: Yup, I agree16:00
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geguileopatrickeast: But that's the bad part16:00
patrickeastgeguileo: i guess maybe if we had a safer way to reload the config it might not be so bad16:00
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patrickeastgeguileo: doesn't fix everything, but makes it less painful16:00
geguileopatrickeast: The only solution I see is to force on start that the configuration is changed   LOL16:00
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geguileopatrickeast: Yeah, but the configuration reload is very tricky16:01
patrickeastgeguileo: oh definitely16:01
geguileoBecause you have to define what parameters are safe to reload dynamically16:01
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geguileoAnd ignore the others16:01
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patrickeastheh, we could split the config file into cinder.conf and cinder-not-safe-to-change.conf16:02
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geguileoAnd then some of the reloaded parameters will require some additional operations to be performed16:02
geguileoBut then some drivers will want to be able to change some parts of their configurations dynamically16:02
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geguileoAnd there we go down the rabbit hole...16:02
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patrickeastugh yea16:02
patrickeastok well, i guess the thing we talked about at the summit is making more sense again16:03
patrickeastwhere we maybe have a hint in the config for a default primary, but track the real one in the db16:03
geguileoI agree we need the configuration dynamic reload, but it's not something that should be coded witout specs16:03
patrickeastabsolutely16:04
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geguileopatrickeast: And should we just prevent the service to restart if the hint and the actual don't match?16:05
geguileopatrickeast: That way we force that it is kept in sync16:05
geguileopatrickeast: Or maybe just log a warning16:05
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patrickeastgeguileo: not sure, i was just thinking through that16:05
geguileoYeah, no silver bullet here :-(16:05
geguileoAnd I was thinking about using the replication_status to mark the promotion16:06
geguileoon the service16:06
geguileoreplication_status=failed-over & active_backend_id=secondary ==> Failed over16:07
geguileoreplication_status=enabled & active_backend_id=secondary ==> Promoted16:07
patrickeastyea that makes sense16:07
geguileoBut then we'll need driver changes16:07
patrickeasttrue, although i'm not sure we can avoid that entirely either way16:07
patrickeastunless we do all of this with new driver api's16:08
geguileoBecause they usually assume that if they receive a not None  active_backend_id it's because they are failed-over16:08
geguileoI don't think new driver api's would solve it because this issue would be in the __init__ method16:08
geguileoThat's when we pass the drivers the active_backend_id16:08
patrickeastehh wait, that might be fine, if active_backend_id is None it means its not failed over16:09
patrickeastiirc it defaults to None16:09
geguileopatrickeast: Yeah16:10
geguileopatrickeast: But the problem is16:10
geguileothat when we force promote a secondary16:10
geguileoIt will receive something different than None16:10
geguileoIt will be the secondary backend id16:10
patrickeastyea16:10
geguileoSo the driver will think it's in failed-over mode :-(16:10
geguileothat's why we would need to pass it also if it's primary or not16:11
geguileoAnd that would require driver changes16:11
geguileoAaaaand that's where my head begun to spin like crazy16:11
geguileoXD16:11
patrickeastoh ok, so maybe this is one of those implementation differences, like for my driver that would work fine we just use whatever the active_backend_id is to figure out what array to send requests to16:11
patrickeastyea we would need a way to tell it whether it should be replicating or not though16:12
patrickeastwhich i guess shouldn't be too hard if we just pass in the replication_status at init?16:12
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geguileoYup16:12
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geguileoAnd use in the promotion stuff to change the status16:13
geguileoBut that's where you have to coordinate all drivers16:13
geguileo:-(16:13
patrickeastyea :(16:13
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* jgriffith thinks he doesn't even want to scroll back and read what's going on here16:13
geguileolol16:13
geguileopatrickeast: And for some it may be irrelevant, like in yours, but maybe in other it will require driver changes...16:14
patrickeastjgriffith: don't worry about it, just baking new desserts16:14
jgriffithhaha16:14
patrickeastgeguileo: yea it will definitely break others16:14
geguileopatrickeast: So that's up to where I analyzed  ;-)16:14
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jgriffithcan't make an omelette....16:14
patrickeastmaybe we just remove replication XD16:15
* patrickeast hopes simon doesnt see this log16:15
jgriffithpatrickeast: best idea yet!16:15
jgriffithpatrickeast: I'm calling Simon right now :)16:15
patrickeastlol16:15
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patrickeastgeguileo: ok well, heres a question, is this something we want to try and tackle for O?16:16
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patrickeastgeguileo: i've got some bandwidth to help out with it, but i'm not 100% sure we want to try and cram this in16:17
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hemnahttp://www.thepoke.co.uk/2016/11/27/lets-all-go-to-the-pub-now/16:17
geguileopatrickeast: I won't have time to work on this  :-(16:17
geguileopatrickeast: I just finished everything else I said I would do related to replication16:17
geguileopatrickeast: I'm going to finish with the dynamic log changing patch soon16:18
geguileopatrickeast: And I have to go back to HA A/A tests16:18
geguileopatrickeast: But I think it would be great if we could get it in O with all the other replication fixes/stuff16:18
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patrickeastgeguileo: ok cool, well in that case I'll maybe put together a spec and see what others think about this16:20
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geguileopatrickeast: Thanks!!16:20
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SwansonI just know you people have broken my replication again.16:24
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patrickeastSwanson: definitely16:25
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patrickeastSwanson: just doing my part to add to your job security16:26
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nikeshmhi cores, just to inform that since i am switching from nova network to neutron in CI, so Kaminario CI have some down time, will sooner make it up16:42
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jgriffithnikeshm: good luck!16:53
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jgriffithnikeshm: hopefully it will go smoothly for you16:53
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* patrickeast should probably switch mine over again...16:53
nikeshmi am not getting slave went offline issues now16:53
jgriffithgeguileo: darn it... you exceeded the available number of cores in my CI this morning!16:53
jgriffith:)16:54
patrickeastlol16:54
jgriffithgeguileo: guess I need to update my CI to queue things... or get you to agree to only submitting 3 at a time :)16:54
patrickeastthose patch updates are a stress test on my ci's burst capabilities16:54
patrickeastjgriffith: woa wait, you don't using queueing?16:55
jgriffithpatrickeast: :)  I turn it on and just launch threads... let the shit fly :)16:55
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patrickeastjgriffith: haha awesome16:56
jgriffithpatrickeast: I'm kind of kidding16:56
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jgriffithI do have a queue set up with some throttling, but I've been super lazy about it.  It's set at something ridiculous like 1016:57
jgriffithwhich was fine when my cloud was 3 24Core nodes16:57
jgriffithbut I've never adjusted that parameter and I've lost two of my nodes... so... yeah; IR-Dumb16:57
patrickeastouch yea16:59
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patrickeasti just added in some more nodes to mine17:00
patrickeastnodepool gets like 30+ nodes... and then jenkins goes oom and dies17:00
patrickeastits like wack-a-mole with these ci's17:01
hemnajust reboot every box at 3am17:02
hemnait'll be fine17:02
patrickeastlol17:02
jgriffithyeah, my nodes have been "re-appropriated" for "more important" things17:02
patrickeasti've been tempted to just add a script to auto-reboot my jenkins vm any time the queue hits 0 jobs in progress17:02
jgriffithGiph servers17:02
patrickeastbummer17:03
patrickeastjgriffith: don't you have access to the netapp ci servers now?17:03
patrickeastXD17:03
patrickeastthey must have a lot considering the number of jobs it runs17:03
jgriffithno, but we're actually talking about moving the SF ci over onto there17:03
* jgriffith washes his hands of CI finally17:03
patrickeasthaha, light at the end of the tunnel17:04
patrickeasti chatted with our internal ci team at some point... they didn't want it17:04
jgriffithSoon I'll just sit behind my mahogany desk, smoke cigars and drink champagne17:04
patrickeastlol17:04
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jgriffithpatrickeast: ha!  Your internal CI folks are smart :)17:04
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jgriffithHonestly I'm not sure I want someobody else to run it17:04
patrickeasthaha yea17:05
jgriffithI think it makes more sense for me to be familiar with it and keeping an eye on it17:05
jgriffithnot to mention, seem ridic that those of us contributing to and talking about OpenStack don't actually run it and use it daily :)17:05
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patrickeasti do like that part17:05
jgriffithI've learned more building and running my CI than I have doing anything else in the OS community frankly17:06
patrickeastyea learning how to deploy and operate my own little cloud has been great17:06
jgriffithagreed17:06
patrickeastand i have enough hardware i don't need to go through our IT/englab anymore for things :D17:06
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patrickeastmy "ci" cloud is code for patrick private cloud17:07
jgriffithpatrickeast: I also still do my quarterly excercise... grab the top 5 deployment tools and see if I can build a multi-node cloud17:07
jgriffithpatrickeast: :)  hehe... mine too :)17:07
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jgriffithpatrickeast: BTW distros... you all pretty much suck still17:07
patrickeastlol17:07
patrickeastthe only one that has been pretty good consistently for me is RDO + openstack-puppet17:07
jgriffithpackstack with RDO has proven easiest and most reliable17:08
jgriffithLOL17:08
jgriffithyes!!17:08
patrickeastsort of a slimmed down version of packstack tailored for my env17:08
patrickeastglad i'm not the only one who found that17:08
patrickeastlol17:08
jgriffithI haven't had much luck with just the openstack-puppet, the Kolla stuff I had high hopes for but it doens't work17:08
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jgriffiththe openstack-ansible stuff actually worked pretty well this last go around... but trying to deal with all those containers sucks17:09
jgriffithand adding compute nodes didn't work out too well for me17:09
patrickeastah yea, i had trouble with the container stuff and as soon as i started looking into dealing with FC i gave up17:09
jgriffithconjure-up just flat out doesn't work17:09
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venkhariHi all, Greetings. I am trying to face off with a customer situation here. Observing weird results trying to run cinder CRUD operations concurrently. (20 concurrent deletes or creates).17:10
jgriffithpatrickeast: OHHHH  yeah!  I didn't even think about trying to make FC work in that env17:10
jgriffithyikes17:10
venkhariTrying to understand deeper on Cinder concurrency settings, (max executor threads, rpc conn pool, time out etc) wonder if you are able to point me to the right material if there is one. I dont find much content on this on the internet ...17:10
patrickeastvenkhari: what kind of weird results?17:10
jgriffithvenkhari: what backe-end?  You're probably hitting RPC time outs if I were a gambling man17:10
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jgriffithvenkhari: some of the backends lock on create/delete; so issuing batches of like 10 is not going to go well for you17:11
venkhariCinder HPE 3PAR iSCSI driver. Cinder stable/mitaka. 15 concurrent processes performing cinder create volume from image, 7 of them seen as available, 8 of them goes to error state17:11
jgriffith:)17:11
jgriffithvenkhari: I suspect you're overloading the 3PAR and it can't complete the tasks quickly enough.17:12
venkhariwell, yes, rpc timeouts as well.  I am told of slowness in deleting volume17:12
venkharivolume locks yes.17:12
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venkhariFrom the first looks, the particular 3PAR model can handle 36 max sessions concurrently.... and the concurrrency here is not maxing it out ...17:13
venkharijgriffith: the field folks have modified max_executor_threads to 3 and rpc_conn_pool to 3. which is bad on performance but gets lesser failures17:15
jgriffithvenkhari: right, but it may not be completing before the RPC timeouts in OpenStack17:15
patrickeastmight be a bottleneck with copying the image to the volumes on the controller17:16
patrickeastvenkhari: are there errors in the log? if the volumes go to error state it should have some indicator of what caused it17:16
venkhariis there any general recommendation from the community on the concurrency part. I dont think we have even QAed the driver working along these lines17:16
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jgriffithvenkhari: don't lock17:17
venkharipartickeast: let me quote one. while creating 10 concurrent volumes of 100GB each, I see iSCSI portal login failed17:17
jgriffithvenkhari: honestly you need a 3par driver expert.  Last I heard HP laid off all of those17:18
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patrickeastmm yea... so there are potentially issues with race conditions and the iscsi connections when doing lots of concurrent operations17:18
venkharijgriffith: I took it over from hemna. :)17:19
jgriffithpatrickeast: venkhari to clarify though you were describing that you were seeing this on deletes no?17:19
jgriffithvenkhari: OH!  Your'e the new 3Par expert!  Welcome!17:19
patrickeastoh, i was assuming creates17:19
jgriffithpatrickeast: yeah, I thought it was both... but maybe I missed something17:20
venkharijgriffith: thanks! yes, creates.17:20
jgriffithok.. sorry, my bad17:20
jgriffiththen listen to what patrickeast says :)17:20
jgriffithignore me :)17:20
patrickeasthaha17:20
jgriffithFWIW it's a common problem17:20
venkhariDeletes were slow for sure. I need to get the precise reason on the deletes. So let me quote creates for now17:20
patrickeastso if you got iscsi login issues you need to go look through the os-brick logging and see what happened17:21
jgriffithvenkhari: there are a number of backends that have problems doing multiple create from images at once17:21
patrickeastjgriffith: +117:21
venkharijgriffith: agree, sequential works like a charm.17:21
patrickeasti would say go turn on the image cache, but i'm not sure that got fixed on 3par or not17:21
jgriffithpatrickeast: +117:22
jgriffithand +117:22
jgriffiththat was a two parter :)17:22
patrickeastlol17:22
venkharijgriffith: image cache is turned on. for worse we also found multiple image backed volumes get into the array for the first time cache-miss, when trying to create multiple volumes!!!17:22
patrickeastvenkhari: yea, thats expected17:23
hemnaI fixed the image cache issues in Mitaka17:23
hemnawell at least it worked in the testing that I did17:23
patrickeastsweet17:23
patrickeasti remember seeing a fix up for review but wasn't sure if it went it or when17:23
hemnaand fwiw, I don't think the 3PAR drivers have locking anymore17:23
hemnaand haven't for ages17:23
venkharihemna: ok! image cache works perfectly as long as concurrency is not attempted17:24
jgriffithhemna: Yeah, I recall you mentioning that17:24
hemnaare clone calls being done in your tests venkhari ?17:24
jgriffithhemna: but I still throw it out there... when all you have is a hammer :)17:24
hemnaheh yah17:25
venkharihemna: yes, i could see create_cloned_volume() gets called.17:25
hemnaand is the size of the volume larger than the original ?17:25
venkharifor the cache-miss flow, the driver does online copy and extends it to desired size.17:26
hemnavenkhari, so the problem with online copy is that the 3par can only do so many of those17:27
hemnaas it's a background process on the 3par17:27
hemnaand it limits the numbers of those it can do17:27
hemnait will queue them up17:27
venkhariwith concurrent create requests, there seems to be no synchronization (possibly in  flow manager ?)  and end up seeing multiple image backed volumes17:27
hemnamy guess is you are hitting that limit17:27
hemnaand it poops out17:27
hemnaI mentioned this in the transition training17:28
hemnaonline copy should be removed IMHO17:28
hemnafrom the cinder driver17:28
venkhariwell, create errors are invariably because of iscsi target portal login failures17:28
venkharihemna: agree, online copy should be avoided17:28
hemnavenkhari, so, if I were you, I'd just put a hack patch together that removes online copy all together and see if that changes things.17:29
hemnait causes so many issues.17:29
hemnagood luck :)17:30
venkharihemna: well, i was able to work around it. i dont suspect that piece of code anymore. there was also another defect where offline copy of unequal sized volume caused perf issues (you know this launchpad defect)17:30
venkhariwith concurrency, iscsi portal login failure is consistently seen.17:31
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hemnahrmm17:31
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hemnaso, from what I remember, brick will first test to see if there is an existing iscsi session with the target portal first17:31
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hemnawould need to see those exceptions where login fails17:32
venkhariOne other message, rarely seen though, was duplicate volume id message (osv-*) ... name already exists in the array.17:32
venkharihemna: ok....17:32
patrickeastthat might be from the taskflow retry when an image-volume cache entry fails to be created17:32
hemnammm taskflow.17:32
patrickeasti've seen that before... been meaning to look into blocking retries to avoid that17:32
hemnamy problem is I don't have an array to play with this stuff at the moment.17:33
hemnaI have devstack and lvm17:33
hemna:P17:33
patrickeastthey didn't let you take one as a souvenir?17:33
hemnawouldn't fit in the cab of my truck17:33
patrickeastlol17:34
venkharihemna: i hear ya !17:34
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venkharihemna: during your time here, was there any scale test practice at all?17:35
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hemnayah we used rally tests17:37
venkhariok, does that test concurrency aspects of driver as well ? ... other than perf17:37
hemnait can yes17:38
venkharihmm.. i 'll need to dig in there then. I understand Michael Denny did some good work in there.17:38
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venkharido you suggest tinkering with max_executor_threads ?17:39
venkharifield guys have better success rates with lower executor threads (their sweet spot seems to be 3 - versus 64, which is defaults)17:40
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hemnavenkhari, I honestly haven't messed with changing those.18:04
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venkharihemna: no!! since these guys are claiming better results only with a lower value of that, i am struggling how to validate/attest that! And wanted to know if that is normal to 'tune' those specific to a backend / topology18:07
hemnait's news to me really18:08
venkharilower values of executor_thread_pool_size and rpc_timeout18:09
venkharifrom defaults of 64 and 30  to   3 and 3  !!! .. This is really low18:09
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venkharisorry rpc_conn_pool_size18:10
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venkharifor i in `seq 10`; do cinder create --image-id $IMG --name vol$i --volume-type $TYP 10 & done18:15
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venkhari2016-11-30 05:41:45.157 [01;31mERROR os_brick.initiator.connector [[01;36mreq-cbe03bb0-e6b4-4246-a76f-1cdedda937f0 [00;36m20fb2e43892249aba2b184f275641b2e c9a5d9a038484b9a8e5c2ad485a1f173[01;31m] [01;35m[01;31mCould not login to any iSCSI portal.[00m18:16
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venkhari2016-11-30 05:41:45.159 [01;31mERROR cinder.volume.flows.manager.create_volume [[01;36mreq-cbe03bb0-e6b4-4246-a76f-1cdedda937f0 [00;36m20fb2e43892249aba2b184f275641b2e c9a5d9a038484b9a8e5c2ad485a1f173[01;31m] [01;35m[01;31mFailed to copy image 69c37974-4e69-4b7c-a5b4-389e757c849a to volume: b07a0841-c3a3-4753-8aaa-b2bd0c9477e2[00m18:20
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venkharihemna: so what i understand is that you didnt have to change the pool sizes for executor threads or for rpc connections; and the defaults were sufficient for very many scenarios that you have seen. is this correct?18:27
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openstackgerritayoung proposed openstack/cinder: Admin API policy enforcement contingent on is_admin_project  https://review.openstack.org/38464218:28
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Cibohello, is it possible to get IP of the Cinder host by some handy API?18:31
CiboI am interested in IP of the IP of the host that is providing operation like copy data from image to volume18:32
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venkharihere is another exception seen during concurrent create: 2016-12-01 03:47:21.441 ^[[01;31mERROR oslo_messaging.rpc.dispatcher [^[[01;36mreq-e0615baa-09d2-4ae0-b7e4-3ec252e2d0e5 ^[[00;36m02e7a3bad79f41e79e96722714ed3318 6c254b35fd7d408886ba94eacc7c435f^[[01;31m] ^[[01;35m^[[01;31mException during message handling: Failed to copy image to volume: Bad or unexpected response from the storage volume backend API: Unable to fetch connection18:33
venkhariinformation from backend: Error (HTTP 500) OPERATION_FAILED - The operation failed: The volume list 'csimbe06-b13VolumeList1480592900' cannot be created because a volume list with the same name already exists. Enter a different name for the new volume list.^[[00m18:33
venkharione volume out of 10 suffered the above error and went into error state.18:34
venkharifour volumesout of 10  suffered the same error as above, and entered error state - during the second run18:35
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nikeshmpatrickeast: i used this http://paste.openstack.org/show/591170/ in CI jobs, but it is not coming under tempest/etc/tempest.conf18:36
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openstackgerritGoutham Pacha Ravi proposed openstack/cinder: NetApp cDOT driver fails to clone from NFS cache  https://review.openstack.org/39046318:55
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openstackgerritErlon R. Cruz proposed openstack/cinder: Route extend_volume calls to scheduler  https://review.openstack.org/40557819:00
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erlon-airlongpatrickeast: hey Patrick19:02
patrickeasterlon-airlong: hey19:02
erlon-airlongpatrickeast: can you give a look on this patch when you have a chance?19:02
patrickeastnikeshm: try setting TEMPEST_VOLUME_VENDOR and TEMPEST_VOLUME_DRIVER19:03
erlon-airlongpatrickeast: We had discussed about doing like this last release19:03
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patrickeasterlon-airlong: this one https://review.openstack.org/405578 ?19:03
erlon-airlongpatrickeast: yes19:03
patrickeasterlon-airlong: cool, will do19:03
erlon-airlongpatrickeast: nice, thanks!19:04
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prometheanfiresmcginnis: ping?19:14
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openstackgerritEric Harney proposed openstack/cinder: Use oslo.privsep for LIO  https://review.openstack.org/31249820:05
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openstackgerritEric Harney proposed openstack/cinder: Add 'unmanaging' state to volumes and snapshots  https://review.openstack.org/40562020:30
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openstackgerritMerged openstack/cinder: NetApp Data ONTAP driver enhanced support logging  https://review.openstack.org/38979421:01
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SwansonWhat is actually blocked if a backend is "frozen"? Anything? Is it on the driver to enforce this?21:12
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patrickeastSwanson: it was supposed to be pretty much everything except attach, detach, delete... i think there is a patch up right now that tightens what is allowed since it wasn't really doing that before very well21:18
patrickeastSwanson: https://review.openstack.org/#/c/402923/21:18
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Swansonpatrickeast, So it isn't just my imagination then.21:19
patrickeastSwanson: nah, the codes crazy... not you21:19
* patrickeast makes grand assumptions21:20
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Swansonpatrickeast, Thanks for the link to that patch.21:21
patrickeastSwanson: np21:22
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SwansonHate when the "wait, does this actually work the way I thought it did" moment comes really late.21:26
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jgriffithSwanson: patrickeast so it was *supposed* to shutdown the service and keep you from doing *anything*, but that didn't quite work out :(21:30
patrickeastjgriffith: i thought it was for like once you enabled the service it gave limited functionality so you could like reattach volumes or whatever to clean things up before letting things go back to normal21:30
jgriffithSwanson: I fully expected you to be the defacto expert on this thing by now21:30
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Swansonpatrickeast, that's what I thought.21:31
* patrickeast is realizing why this ended up in a weird implementation after we all have different ideas about it21:31
jgriffithpatrickeast: oh, the freeze part si-seniors21:31
Swansonjgriffith, I'm a defacto expert on how to create an implementation that is broken by every since extension of the original idea.21:32
patrickeastlol21:32
Swansonsince? single21:32
jgriffithpatrickeast: so yeah, it was supposed to just say you can't do anything new or delete anything cuz times are scary right now21:32
patrickeastjgriffith: yea that gels with that i was remembering21:32
jgriffithSwanson: I say you propose a patch to remove it altogether.. and maybe do a V3 :)21:33
jgriffithpatrickeast: yeah... sorry; me was confused21:33
patrickeasthaha new microversion21:33
Swansonjgriffith, smcginnis gets an eye twitch when I talk about V3.21:33
jgriffithpatrickeast: it would've worked that way IF I weren't so stupid and never put in the "disable" column for the service in the DB :(21:33
jgriffithsomehow got lost in the shuffle and was missed21:34
patrickeastbummer21:34
jgriffithI blame rebasing :)21:34
Swansonjgriffith, I really like the simplicity of the "times are scary" approach. If you can attach and detach you can get back to your starting point.21:34
jgriffithSwanson: I'm biased but I liked it too :)21:35
jgriffithSwanson: we actually had a really good collaborative group discussion that whole thing at the mid-cycle in NC21:35
jgriffithSwanson: one of the better, more productive group efforts of the Cinder team IMHO21:36
Swansonjgriffith, That's where it went to the simplest approach, right? And right afterwards was when it started being extended back to the less simple approach?21:36
SwansonPeople are a problem.21:37
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SwansonGoogle translate has its own language now. Just a matter of time before it's coding all this and taking over the world. We all thought it would be skynet. Nope. Google translate.21:38
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jgriffithSwanson: yeah, that's kinda how it goes :(22:02
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alkodosHi everyone! I was wondering if there is a way to make quiesced snapshots in cinder, so that I can safely snapshot volumes that are attached to instances? Tried to google this, but only found some old blueprints which were not implemented... Is there a way to do this?22:27
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