Thursday, 2017-05-04

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openstackgerritDhinesh Balasubramaniam proposed openstack/cinder master: Hedvig Cinder driver implementation and unit tests.  https://review.openstack.org/43334100:29
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Rick____Can anyone help me to review my changed? https://review.openstack.org/#/c/456796/3 It got pending long time.01:21
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openstackgerritNgo Quoc Cuong proposed openstack/cinder master: Trivial fix typos while reading code  https://review.openstack.org/46234002:27
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flwang2melwitt: smcginnis: i think the patch  https://review.openstack.org/#/c/462163 fixed the unicode problem, just FYI03:27
flwang2now the ceph plugin gate passed in glance store gate03:27
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openstackgerritMerged openstack/cinder master: Remove dependecy testrepository  https://review.openstack.org/45027603:55
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openstackgerritChangBo Guo(gcb) proposed openstack/cinder master: Remove usage of parameter enforce_type  https://review.openstack.org/46236504:58
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openstackgerritChangBo Guo(gcb) proposed openstack/cinder master: Remove usage of parameter enforce_type  https://review.openstack.org/46236505:03
openstackgerritMerged openstack/cinder master: Trivial fix typos while reading code  https://review.openstack.org/46234005:08
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openstackgerritCheng Yong Zhao proposed openstack/cinder master: Add gmcv support in SVC driver  https://review.openstack.org/46119107:17
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openstackgerritCheng Li proposed openstack/os-brick master: prevent rbd map again if it's already mapped  https://review.openstack.org/46241607:27
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openstackgerritTommyLike proposed openstack/cinder master: Explicit user messages  https://review.openstack.org/44838407:39
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openstackgerritCheng Li proposed openstack/os-brick master: prevent rbd map again if it's already mapped  https://review.openstack.org/46241607:48
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openstackgerritCheng Li proposed openstack/os-brick master: prevent rbd map again if it's already mapped  https://review.openstack.org/46241608:16
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openstackgerritTommyLike proposed openstack/python-cinderclient master: Cinder client reset-state improvements  https://review.openstack.org/44635608:50
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openstackgerritChhavi Agarwal proposed openstack/cinder master: WIP: Support iSCSI host when Fc volume is there  https://review.openstack.org/46185009:37
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX driver - Rollback error on Live Migration  https://review.openstack.org/46248210:27
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openstackgerritChhavi Agarwal proposed openstack/cinder master: WIP: Support iSCSI host when Fc volume is there  https://review.openstack.org/46185010:41
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openstackgerritIsaac Beckman proposed openstack/cinder master: ibm-storage: update version number and history  https://review.openstack.org/46249610:53
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tommylikehuanyone would like to have a look at this patch? thanks in advance :) https://review.openstack.org/#/c/446356/11:01
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isaacbsmcginnis: Hi, can you please approve: https://blueprints.launchpad.net/cinder/+spec/replication-cg-ibm-storage11:08
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openstackgerritChhavi Agarwal proposed openstack/cinder master: WIP: Support iSCSI host when Fc volume is there  https://review.openstack.org/46185012:50
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smcginnisisaacb: Done12:56
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RedBeardATXGood Morning13:16
RedBeardATXI have a question, is it possible to migrate instances from LVM backed local storage to SVC Backed Cinder storage13:18
RedBeardATXon Kilo13:18
RedBeardATXand if so what would the procedure look like13:18
openstackgerritOpenStack Proposal Bot proposed openstack/cinder master: Updated from global requirements  https://review.openstack.org/46209513:20
dpawlikjbernard, winston-d: are you there?13:22
smcginnisRedBeardATX: Yes, we support migrating volumes between backends.13:22
smcginnisRedBeardATX: In most cases that requires an actual copy of data from old to new volume.13:22
smcginnisRedBeardATX: So it could take some time, but can be done.13:22
smcginnisRedBeardATX: This may help: https://docs.openstack.org/admin-guide/blockstorage-volume-migration.html13:23
eharneysmcginnis: is this a new error?  http://logs.openstack.org/95/462095/1/check/gate-tempest-dsvm-neutron-full-ubuntu-xenial/5aeb74a/logs/screen-c-vol.txt.gz?#_May_03_13_00_41_58681613:23
eharney"Snapshot origin volumes can be resized only while inactive"   hrm13:23
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smcginniseharney: Kind of.13:23
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smcginniseharney: We had the issue where deactivation was taking too long and we would time out waiting.13:23
smcginniseharney: We get around that now with waiting longer.13:24
smcginniseharney: If this instance is like the one I was digging into last night,13:24
smcginniseharney: It does appear to successfully deactivate the lv13:24
smcginniseharney: But then the lvextend fails with an error saying it can't be active.13:24
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smcginniseharney: So almost like there is some internal state that still hasn't transitioned, even though lvdisplay shows it has been deactivated.13:25
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RedBeardATXyea I have been reading that, and some of the other other documents within that guide, do you know if it supports live-migration, the reason I ask is we are currently working on an upgrade path of our current openstack to rekick it to the latest versions and move all storage off of the local storage onto cinder storage13:25
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smcginnisRedBeardATX: Sorry, had some connectivity issues.13:32
smcginnisRedBeardATX: I have not tried live migrating like that myself.13:32
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RedBeardATXWe have only done it once without much sucess, and at the moment only snapshots are stored on our svc which is not very helpful for our use case so we are trying to utilize more of our resources better13:36
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openstackgerritEvgeny Antyshev proposed openstack/cinder master: vzstorage: use remotefs.VZStorageRemoteFSClient  https://review.openstack.org/46256313:39
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hemnaguwak13:43
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flip214smcginnis: DRBD and lvm-multibackend CI running normally again. Thanks for the fix!   (couldn't find a matching commit, though?!)13:45
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smcginnisflip214: Great!13:56
smcginnisflip214: I think it was actually this one: https://review.openstack.org/#/c/46216313:57
flip214not from my contribution...13:57
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openstackgerritSzymon Datko proposed openstack/cinder master: Added basepython for pep8 env in tox.ini  https://review.openstack.org/46258614:56
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openstackgerritTommyLike proposed openstack/python-cinderclient master: Cinder client reset-state improvements  https://review.openstack.org/44635615:18
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openstackgerritEric Harney proposed openstack/cinder master: genopts: Fix python 3 compat issue  https://review.openstack.org/46259915:29
smcginniseharney: Are we going to have sorting issues between 2.x and 3.x now?15:30
eharneysmcginnis: i uh... don't know why the sorting changed there  -- it seems arbitrary in both cases15:30
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eharneysmcginnis: let's make sure it's not relying on sorting a dict or something before merging this15:31
smcginniseharney: Guess we'll see. Will kind of be a pain if it jumps around every time someone updates it depending if they have 2 or 3.15:31
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eharneysmcginnis: if it's relying on sorting a dict it will jump around every time it's run on 315:32
eharneywe really gotta get rid of that PYTHONHASHSEED=0 in tox.ini15:32
eharneyi poke at it every now and then but i think there are still changes needed15:32
smcginniseharney: What's the background on that? What do we need to do?15:32
eharneysmcginnis: remove it and fix unit tests that fail.  Usually I just change it a random number and see what fails.  Failures indicate code that will fail in production anyway because it's doing something that is not a stable operation in Python15:33
smcginniseharney: We could update that to use OrderedDict.15:33
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openstackgerritKushal Wathore proposed openstack/cinder master: HPE Lefthand: Fixed cloning operation.  https://review.openstack.org/46262415:51
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openstackgerritEric Harney proposed openstack/cinder master: genopts: Fix python 3 compat, sort options  https://review.openstack.org/46259916:18
eharneythere we go16:18
smcginniseharney: Importing class?16:21
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX driver - Manage/Unmanage performance fix  https://review.openstack.org/45620916:30
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openstackgerritIvan Kolodyazhny proposed openstack/cinder master: Fix change API volume create message  https://review.openstack.org/46049617:22
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openstackgerritVipin Balachandran proposed openstack/cinder master: Remove backup-restore methods in driver code  https://review.openstack.org/43294818:09
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openstackgerritIvan Kolodyazhny proposed openstack/cinder master: Remove snapshot['size'] references  https://review.openstack.org/46269718:21
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openstackgerritEric Harney proposed openstack/cinder master: genopts: Fix python 3 compat, sort options  https://review.openstack.org/46259918:32
eharneysmcginnis: i actually don't know what the reason for that rule is18:32
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openstackgerritTzur Eliyahu proposed openstack/cinder master: Ibm storage: added new option for qos type  https://review.openstack.org/45964918:41
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RedBeardATXso here is another question, are cinder volume drivers independent of the version of the version of cinder installed? so for example we are using Kilo can we use the latest IBM SVC Cinder Volume driver18:55
jgriffithRedBeardATX nope, they’re not :(18:56
RedBeardATXwell that sucks18:56
jgriffithRedBeardATX we don’t have any *rules* in place regarding driver interfaces being compatible etc, and most releases include a poop-ton of driver changes/additions18:57
RedBeardATXwell maybe you can answer this question then, is Kilo compatible with the latest SVC driver18:58
jgriffithWould be awesome if it worked that way, but in most cases it doesn’t.  There’s also an issue with that model because changes tend to reach up above the driver, so even if you try (like I did for a long time) to have a universal driver it all falls apart one night when a bunch of changes merge that break the world :)18:58
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jgriffithRedBeardATX I can’t almost answer definitively no18:58
jgriffith*almost*18:58
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RedBeardATXWell looks like FreeNAS to the rescue then :(18:59
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jgriffithThere’s a lot of changes that have gone  in to the manager and base driver interface that I think would make that very unlikely.  That being said, it might not be too hard to back port SVC if that’s what you want to do18:59
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openstackgerritVipin Balachandran proposed openstack/cinder master: VMware: Apply policy at vmdk level during retype  https://review.openstack.org/46199719:00
RedBeardATXWe are working on a memory upgrade to prepare for a full upgrade of all services19:00
RedBeardATXso we are having to play vm tetris with lvm storage19:00
RedBeardATXand looking for a better way to do it19:01
jgriffithYou mean you’re using LVM on your compute nodes that you want to upgrade currently?19:02
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RedBeardATXyea, this openstack instance has had abunch of different hands in it and that why we are trying to get it to a better place and get it fresh and clean and under CM management as well19:03
jgriffithYeah, I hear ya19:03
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jgriffithSo just build a true independent c-vol server on a few nodes, use Cinder migrate or import/export to move all your data ;)19:04
jgriffithNot trivial, but you’ll have the same problem of migration no matter what you move in19:04
jgriffithIf you keep those c-vol servers independent you won’t have to worry about the upgrade head-aches anymore (so much)19:05
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RedBeardATXThanks a bunch jgriffith19:10
jgriffithRedBeardATX sure,19:11
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e0nejgriffith: hi. did you see my message with noauth via python api?19:21
jgriffithe0ne no… I didn't19:22
jgriffithDid you fix it?19:22
e0nejgriffith: here is it https://gist.github.com/e0ne/bf04d763e222a22976c8745dd28970da19:23
jgriffithe0ne Nice!!!19:23
e0neat least, it work on my env19:23
jgriffithe0ne cinderflex :)19:23
jgriffithI think we’re doing the same thing :)19:23
jgriffithWe should chat LOL19:23
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jgriffithOr did I write that down somewhere too already19:24
e0nejgriffith: it was originally your gist, that's why tenant name is the same19:24
jgriffithAhh LOL19:24
e0neI'm too lazy to change it19:24
jgriffithHere I thought “dang, e0ne and I are like mind-meld"19:24
e0ne:)19:24
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jgriffithOk, so what the heck was I missing?19:24
openstackgerritVipin Balachandran proposed openstack/cinder master: VMware: Stop setting dynamicType  https://review.openstack.org/46271719:25
jgriffithRegardless thank you TONS for looking at it!!!19:25
jgriffithI’ll try it out tonight!!!19:25
jgriffithexciting19:25
e0nejgriffith: you used get_plugin_loader('password') instead noauth19:26
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e0nejgriffith: that was the main issue19:26
jgriffithOMG19:27
jgriffithYa know what’s so funny about that… I pointed that out as a problem in somebody’s rc file yesterday :)19:27
jgriffithApparently I can find problems in other peoples work but not my own…. Even when it’s the same dang problem :)19:27
e0ne:)19:28
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smcginnisjgriffith: Do you know - if we default LVM_TYPE=thin, would that cause upgrade issues?19:37
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e0nesmcginnis: why do we need it? we use 'auto' now19:38
eharneysmcginnis: we have code already for "lvm_type=auto" to help w/ that19:38
smcginnise0ne, eharney: I vaguely remember that change. Does auto mean thin if there is a thin pool?19:38
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e0nesmcginnis: AFAIR, yes19:39
smcginnisAh, found it: https://review.openstack.org/gitweb?p=openstack%2Fcinder.git;a=commitdiff;h=836b364ba79b7d08e0626c120c6e4e5e6cb9d9b219:39
eharneysmcginnis: it's thin if the VG has a thin pool, or if it's empty (will create a thin pool)19:39
smcginniseharney: OK, good. For some reason I was thinking we still ended up with thick on fresh installs.19:39
eharneysmcginnis: the other reason was overprov ratio.  i think the lvm_max_over_subscription_ratio option may have fixed that now, but i'd have to go check to see if it works right  (there was at least one bug/patch about it after i wrote it)19:40
eharneysmcginnis: fresh installs will get thick by default19:42
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jgriffithsmcginnis sorry, was outside19:43
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jgriffithBut eharney’s got ya covered19:43
smcginniseharney: I thought it said it would create it?19:43
smcginnisjgriffith: Yep, thanks. ;)19:43
eharneysmcginnis: if it's set to "auto", but "auto" isn't the default19:43
smcginniseharney: Ah. So I'll change my original question. If we default to auto or thin, would that cause upgrade issues?19:44
jgriffithsmcginnis we just needed a detection mechanism19:45
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smcginnisjgriffith: You mean, detect if there are existing thick volumes and if so, stay thick?19:46
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jgriffithsmcginnis yeah19:46
jgriffithThe problem I had with changing was what to do with upgrades19:47
jgriffithAnd it was kind of on again / off again as far as folks thinking default to thin was ready19:47
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jgriffithThe last time I raised this (long time ago now) there was some concern19:48
jgriffithAbout whether or not thin was stable/ready19:48
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smcginnisSeems pretty good to me from what I've used. But I'm sure there are a lot of corners that I have not gone in to.19:49
eharneyi don't know of any reason at this point to not move to it19:50
jgriffithsmcginnis Yeah, I’ve moved to it and been happy… but I’m not run a production cloud with 1000’s of volumes ;)19:51
smcginnisMaybe I'll propose the change and see if there's any negative feedback.19:51
smcginnisThey can always set it to thick if they need to.19:51
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smcginnisMight be good to switch over devstack first. It at least would benefit developer stacks. And that might help find out if there are issues we don't know about.19:52
eharneysmcginnis: the LIO gate has been running it for a while19:53
smcginniseharney: Saw that in there. I forget, is that experimental?19:53
smcginnisI shoudl probably know that.19:53
eharneysmcginnis: no19:53
eharneysmcginnis: i (or someone) need to check out https://bugs.launchpad.net/cinder/+bug/160223519:56
openstackLaunchpad bug 1602235 in Cinder "LVM max_over_subscription_ratio doesn't respect precedence" [Low,Confirmed]19:56
smcginnisHmm, yeah.19:58
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openstackgerritMerged openstack/cinder master: ProphetStor failed to create volume size larger than the snapshot.  https://review.openstack.org/45679620:34
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openstackgerritDhinesh Balasubramaniam proposed openstack/cinder master: Hedvig Cinder driver implementation and unit tests.  https://review.openstack.org/43334120:44
openstackgerritMerged openstack/cinder master: Updated from global requirements  https://review.openstack.org/46209520:48
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mriedemsmcginnis: xyang1: i thought that since os-brick was using privsep we didn't need rootwrap filters? https://review.openstack.org/#/c/382097/4721:07
mriedembecause that's also proposed in https://review.openstack.org/#/c/443951/21:07
mriedemi guess cinder needs it because of https://review.openstack.org/#/c/382097/47/cinder/volume/drivers/veritas/utils.py@22721:09
mriedembut nova shouldn't need it at all, because nova is using brick which is using privsep21:09
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smcginnismriedem: I think that was in regards to anything in os-brick that could be run by either nova or cinder.21:12
smcginnismriedem: Because then we would have the lock step rootwrap filter upgrade thing.21:12
smcginnismriedem: But if it's something run only in cinder or only in nova, it's still OK.21:13
smcginnismriedem: But really I don't know what the plan is - I thought we were going to migrate everything away from rootwrap completely.21:13
smcginnismriedem: But now that gus is gone, I don't even know if privsep is maintained.21:14
mriedemsame21:15
mriedemso i think in this case since cinder is calling out to hscli, it's ok21:15
mriedemnova does'nt need it b/c nova is using brick which is using privsep to call hscli21:15
smcginnismriedem: That sounds right.21:15
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mriedemwe said in austin that we shouldn't add any new rootwrap stuff to nova and everything new that needs it should use privsep, but no one knew how to integrate privsep for new stuff and it was blocking features getting added, so we just kept making exceptions21:16
smcginnismriedem: Based on the experience switching over with os-brick, I'm a little hesitant to switch over the rest of cinder without someone able to pay attention to it.21:17
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mriedemflip214: are you going to rebase and address comments on this? https://review.openstack.org/#/c/256292/21:41
mriedemflip214: because i wouldn't rely on this jazeltq to do it21:42
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dhineshif "gate-tempest-dsvm-py35-ubuntu-xenial" fails but other voting jenkins checks passes22:21
dhineshwhat does it usually mean?22:21
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openstackgerritMerged openstack/cinder master: Remove usage of parameter enforce_type  https://review.openstack.org/46236522:31
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mtreinishdhinesh: normally that something in your patch isn't python 3 compatible22:33
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