Tuesday, 2017-04-18

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openstackgerritYingzhe Zeng proposed openstack/cinder master: Update LUN description after migration for Huawei array  https://review.openstack.org/45548101:00
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openstackgerritTommyLike proposed openstack/cinder master: Clean up expired user messages  https://review.openstack.org/44902501:10
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openstackgerritliuyamin proposed openstack/cinder master: Add the missing parameters in the api-ref of ext-backups.inc  https://review.openstack.org/45053701:46
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openstackgerritChuck Fouts proposed openstack/cinder master: NetApp cDOT: Support generic groups for block  https://review.openstack.org/45230601:56
openstackgerritGuy Kim proposed openstack/cinder master: Add new options in volume driver base class  https://review.openstack.org/45742601:58
tommylikehuping ildikov02:13
openstackgerritwangxiyuan proposed openstack/cinder master: Fix NoneType has no attribute get  https://review.openstack.org/45743102:20
ildikovtommylikehu: I'm on a conference this week, so limited availability02:21
ildikovtommylikehu: what's up?02:21
tommylikehuok, quick question.02:22
tommylikehuildikov:  do you familiar with the cinder's migration feature and its cooperation with nova?02:22
ildikovNot in deep details02:23
ildikovThat was pretty much on the margin regarding my involvement so far02:24
tommylikehuok, about the behaviour in nova02:25
tommylikehuafter the migration cinder will call nova's update_server_volume to play the volume swap operation, and then nova will call back cinder's migration_complete API.02:26
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tommylikehuso, multi_attach means the migration_complete will be invoked multi times. right?02:27
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ildikovtommylikehu: I'm unsure at this point as we will have a few things blocked with multi-attach volumes02:28
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ildikovtommylikehu: this might be one of them02:29
tommylikehuildikov: lol02:29
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ildikovtommylikehu: we will need a spec for multi-attach in Nova02:29
tommylikehuhope I can help geting rid of them02:29
ildikovtommylikehu: it's not even fully figured out in Cinder yet02:30
tommylikehuildikov:  doesn't nova already have that spec? https://specs.openstack.org/openstack/nova-specs/specs/kilo/approved/multi-attach-volume.html02:30
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ildikovtommylikehu: it's an old version for Cinder v202:35
ildikovtommylikehu: Cinder v3 is pretty much different, so we cannot reuse that spec02:36
tommylikehuthat make sense :)02:36
tommylikehuthanks ildikov02:36
ildikovtommylikehu: np :)02:37
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openstackgerritwangxiyuan proposed openstack/cinder master: Don't check thin provisioning when manage volumes  https://review.openstack.org/45711903:33
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openstackgerritwangxiyuan proposed openstack/cinder master: Add Generic Volume Group Into Quota Management  https://review.openstack.org/43946103:42
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namnhHi everyone, I am testing cinder high availability at Newton release. I am running with an architecture like: 3 cinder-api (active/passive), 3 cinder-volume (active/passive), 3 cinder-volume (active/passive).04:34
namnhI would like to ask: are there any problem if I run a architecture like:  3 cinder-api (active/active), 3 cinder-volume (active/active), 3 cinder-volume (active-passive) ???04:36
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openstackgerritGuy Kim proposed openstack/cinder master: Add new options in volume driver base class  https://review.openstack.org/45742605:26
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openstackgerritChhavi Agarwal proposed openstack/os-brick master: WIP Adding support for FibreChannelConnector for PPC64  https://review.openstack.org/45723305:29
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openstackgerritGuy Kim proposed openstack/cinder master: Add new options in volume driver base class  https://review.openstack.org/45742607:06
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openstackgerritTommyLike proposed openstack/cinder master: Add support for generalized filtering on list APIs  https://review.openstack.org/44459809:37
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tommylikehuhey jungleboyj , smcginnis  I fixed some typos at the commit messages, please take a look again :) https://review.openstack.org/#/c/449025/10:07
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openstackgerritTommyLike proposed openstack/cinder master: [BugFix] Filtering attachment doesn't support 'instance_id'  https://review.openstack.org/45756811:04
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tommylikehuhey jgriffith , DuncanT  could you take a look ath this  generalized filtering implmentation patch: https://review.openstack.org/#/c/444598/11:53
geguileoany oslo.privsep expert around?11:55
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smcginnisgeguileo: Is there such a thing?12:27
geguileosmcginnis: lol12:27
geguileosmcginnis: I certainly hope so12:27
geguileoI tried pinging gus in openstack-oslo and through the request in the air12:28
geguileobut crickets  :-(12:28
smcginnisgeguileo: I think I had heard gus actually moved on to other (non-OpenStack) things.12:29
smcginnisgeguileo: Which scares me, because as far as I saw, he was the only privsep expert.12:30
geguileosmcginnis: Oh, that's good to know :-(12:30
geguileosmcginnis: Yup, most of the code seems to be done by gus12:30
geguileosmcginnis: And I'm really concerned about something and I wanted to have confirmation12:30
smcginnisgeguileo: Maybe should have been a requirement that there were two people "owning" it before it was adopted by projects.12:30
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geguileoit's one of those times I'm praying to be wrong12:31
smcginnisgeguileo: Although, good chance for someone interested to take it on.12:31
smcginnis;)12:31
* geguileo looks around...12:31
geguileoIt seems there's nobody around interested12:31
geguileo;-)12:31
smcginnisHah, at least not so far. I hope someone decides to work on it. :12:32
smcginnis:)12:32
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geguileoMy fear is that the privsep entrypoint can only accept 1 simultateous call12:32
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DuncanTgeguileo: That would be... not good12:33
smcginnisHmm. I actually wouldn't be surprised, but unforatunately don't know it that well.12:33
smcginnisDuncanT! :)12:33
DuncanTgeguileo: I don't know the code at all well enough to comment, but yeah. Not good.12:33
DuncanTgeguileo: And it wouldn't surprise me12:33
smcginnishemna was forced into learning some of it due to os-brick. There's a chance he might have some knowledge.12:33
geguileoDuncanT: I've launched the question to gus right now12:34
DuncanTgeguileo: I think neutron does lots of heavy load stuff on privsep, somebody there might be able to comment?12:34
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geguileoOK, apparently my fear was right...12:35
geguileoI read the code right12:35
geguileoSo..... basically privsep sucks big time12:36
geguileoFor os-brick12:36
* geguileo cries12:36
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jonesnIs anyone around who can explain why we filter zuul tox tests on branches: ^(?!(stable/mitaka|driverfixes/)).*$13:18
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e0nejonesn: AFAIR, because infra doesn's support such old branches13:21
jonesne0ne: Thanks. Just wanted to check for https://review.openstack.org/#/c/457332/13:23
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Dinesh_Bhore0ne: Hi, if you have time then may I get your opinion on this? https://review.openstack.org/#/c/454562/13:31
e0neDinesh_Bhor: sure. I'll review it13:32
Dinesh_Bhore0ne: thank you so much13:32
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openstackgerritTommyLike proposed openstack/cinder master: Filtering attachment doesn't support 'instance_id'  https://review.openstack.org/45756813:39
tommylikehuping smcginnis13:46
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX driver - Base functionality, replacing SMI-S with REST  https://review.openstack.org/45542813:54
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX driver - Retype, replacing SMI-S with REST  https://review.openstack.org/45675714:09
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX driver - QoS, replacing SMI-S with REST  https://review.openstack.org/45675914:23
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openstackgerritTommyLike proposed openstack/cinder master: Add 'connection_info' to attachment object  https://review.openstack.org/45513114:45
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tommylikehuhey anyone could take a look at this bug fix patch? https://review.openstack.org/#/c/457568/15:04
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openstackgerritMerged openstack/os-brick master: os-brick connector for Veritas HyperScale  https://review.openstack.org/44275415:20
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openstackgerritTommyLike proposed openstack/cinder master: Filtering attachment doesn't support 'instance_id'  https://review.openstack.org/45756815:27
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openstackgerritMerged openstack/cinder master: Clean up expired user messages  https://review.openstack.org/44902516:04
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openstackgerritMerged openstack/cinder master: Check "kernel_id", "ramdisk_id" for Glance v2 only  https://review.openstack.org/43941216:05
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openstackgerritMerged openstack/cinder master: Remove deprecated cinder.middleware.sizelimit  https://review.openstack.org/38086616:19
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Apoorvadid anyone encounter http://paste.openstack.org/show/606920/ failure while running tempest?16:37
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smcginnistommylikehu: At a conference this week, so here in little spurts. What's up?16:53
openstackgerritOpenStack Proposal Bot proposed openstack/os-brick master: Updated from global requirements  https://review.openstack.org/45450916:54
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openstackgerritMerged openstack/cinder master: 3PAR: Enable HPE-3PAR Compression Feature  https://review.openstack.org/40912817:11
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jonesnsmcginnis: If you have time, could you take a look at this infra change? I *think* you have to sign off on it.  https://review.openstack.org/#/c/457332/17:15
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geguileopatrickeast: Did you have a chance to test the new iSCSI code?17:33
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taskerI just came across the mitaka/cheesecake specification discussing a refinement / extension to the Cinder replication functionality. I did not know Cinder had this functionality at all -- does anyone have any reference or link to the previous specification that cheesecake is building from?18:32
SwansonReplication v2.1?18:33
taskerthat's the current active-active spec I think.18:33
taskerat least, that's what I'm gleaning from what I'm reading.18:33
taskerI'm looking for whatever defined replication prior to https://blueprints.launchpad.net/cinder/+spec/replication18:34
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SwansonI got Tiramisu and Cheesecake confused.18:35
SwansonI supported replication with cheesecake so I don't know what came before. Very few drivers supported it. That's all I know.18:36
taskeryeah. as I was flipping through the source starting at M and moving forward, I saw more and more drivers including some of the replication functions. since it appears to start in M, I thought there might be a spec for it, but the review I found (401392) was put into place only in November which I think is master-line for P.18:38
xyang1tasker: cheesecake was introduced in Mitaka.  It is just that the spec was updated later to support a-a18:41
taskerahhh. so I'm actually reading the thing that I'm looking for? (and just getting hung up on the extension?)18:42
xyang1tasker: the original spec was referenced at the end of 40139218:43
taskerI still don't think I'm understanding this. I'm reading https://specs.openstack.org/openstack/cinder-specs/specs/mitaka/cheesecake.html and in the first paragraph it says "This spec proposes further refinement to the Cinder replication." if "this spec" is cheesecake, what came before it?18:44
taskeris that just this? https://docs.openstack.org/developer/cinder/devref/replication.html18:44
xyang1tasker: oh, we had 2.0 before 2.1, but anything before 2.1 is no longer there18:45
xyang1tasker: so it is good to start with 2.118:45
xyang1tasker: yes, that's a good debrief18:45
taskeraaaahh. no wonder I couldn't find it. <g>18:45
jonesntasker: xyang1: I'm really wanting some dessert now.18:45
taskerjonesn: right!?18:46
xyang1jonesn: stay tuned - tiramisu is coming......18:46
taskerfollowed by a wafer-thin mint?18:47
jonesnxyang1: Unrelated, can any core approve infra changes that affect cinder, or does it have to be Sean?18:47
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xyang1jonesn: only infra core can approve that18:47
SwansonI want replication v3 to be no replication. Just a dry chuckle from the computer when you try to use it.18:48
xyang1jonesn: Sean can't approve infra changes either, but his vote can give others confidence18:48
jonesnhttps://review.openstack.org/#/c/457332/  Andreas gave me a +2, I was under the impression someone from cinder had to give their blessing too.18:48
xyang1jonesn: no, you need another infra core18:48
jonesnxyang1: That makes sense.18:49
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SwansonIf it impacts cinder then get a cinder core to call it good. We've had issues with this in the past.18:50
SwansonBut I don't think that is required.18:50
taskerxyang1: thanks for your help! have a great day / night.18:50
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jonesnxyang1: Would you mind reviewing that patch?18:53
xyang1jonesn: looking at it now18:54
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jonesnSwanson: "I'm afraid I can't let you replicate that."18:58
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openstackgerritMerged openstack/os-brick master: Updated from global requirements  https://review.openstack.org/45450919:32
smcginnisSwanson: John agrees on repl v3. ;)19:32
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Swansonsmcginnis, John knows.19:52
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openstackgerritMatt Riedemann proposed openstack/cinder master: Re-order api-ref home page index  https://review.openstack.org/45778620:08
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cFoutsxyang1: hi, are you around?20:17
xyang1cFouts: hi20:18
cFoutsxyang1: gouthamr wrote a test that causes create_group_snapshot to get stuck in "creating"20:19
xyang1cFouts: where is the test?20:19
cFoutsxyang1: it is an internal test but I can share it.20:20
xyang1cFouts: ok, I want to try to reproduce20:21
cFoutsok, I can do that20:21
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xyang1cFouts: thanks20:21
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cFoutsxyang1: http://paste.openstack.org/show/607047/20:27
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xyang1cFouts: so the test removed a volume from the group on the backend but Cinder does not know it20:32
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xyang1cFouts: did you get an exception from backend?20:32
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mriedemi got so tired of looking for things in your guys' api reference20:34
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openstackgerritMatt Riedemann proposed openstack/cinder master: Re-arrange v3 API reference  https://review.openstack.org/45779120:34
mriedemso there20:34
smcginnisIt's our stategy for getting new contributors. Annoy them enough that they finally give in and submit patches.20:36
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mriedemit works20:36
mriedemsmcginnis: quick, if you can approve i'll have more commits than jungleboyj :) http://stackalytics.com/report/contribution/cinder/9020:37
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jungleboyjmriedem: *sigh*20:38
smcginnishehe20:39
xyang1cFouts: line 26 in your paste, where is create_group_snapshot defined?20:39
xyang1cFouts: I am looking at it in manager.py, it should set status to error if exception is raised from driver20:40
cFoutsxyang1: yes, an exception from the backend that is not NotImplementedError :)20:40
xyang1cFouts: what driver is it?  I thought you have implemented groups in your driver20:41
xyang1cFouts: there is an outer exception too20:41
xyang1cFouts: CinderException20:42
cFoutsyeah, but I don't see model_update getting set there20:42
xyang1cFouts: group_snapshot.save sets status to error20:43
xyang1cFouts: what kind of exception is thrown, unless if it is not CinderException?20:44
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xyang1cFouts: does line 26 test your driver function or the one in manager?20:45
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cFoutsxyang1: these functional tests call the API so it will got through the manager20:46
xyang1cFouts: ok20:46
cFoutsxyang1: let me go back and verify that the outer exception is getting hit like you said though.20:47
xyang1cFouts: sure20:47
cFoutsxyang1: I want to make sure I'm not wasting your time20:47
xyang1cFouts: no worries20:47
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xyang1cFouts: can you check what kind of exception is this20:50
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cFoutsxyang1: That is probably the problem. It is our NaApiError. I can catch that and raise a CinderException21:10
xyang1cFouts: you can raise volumebackendapi exception too21:11
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cFoutssure21:11
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xyang1cFouts: I should probably change it to raise a general exception too.  I used the general exception in other groups apis but used CinderException in group_snapshot functions21:12
cFoutsxyang1: I can see it going either way. I am wondering why our exception doesn't inherit from a more appropriate Exception at the moment21:13
xyang1cFouts: it does, but I caught CinderException21:14
xyang1cFouts: anyway driver should still raise VolumeBackendApi exception21:14
xyang1cFouts: or some custom exception derived from CinderException21:15
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cFoutsxyang1: yes, that is the right thing to do.21:20
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tommylikehuyes smcginnis  a quick question which I asked ildkov a little earlier23:11
tommylikehuhttps://github.com/openstack/cinder/blob/master/cinder/volume/manager.py#L188823:11
tommylikehuour migraton_complete API is not ready for multiple attach?23:12
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