Monday, 2016-11-07

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openstackgerritMerged openstack/cinder: Fix test case note  https://review.openstack.org/37540300:10
openstackgerritMerged openstack/cinder: Add API unit tests for snapshot creation force values  https://review.openstack.org/39228400:14
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openstackgerritTommyLike proposed openstack/python-cinderclient: Optimize: add build_query_param method to clean code  https://review.openstack.org/37925501:27
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openstackgerritYves-Zhang proposed openstack/cinder: Ceph backup driver:delete the 'backup snapshot' for target volume  https://review.openstack.org/39264602:49
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openstackgerritVivek Agrawal proposed openstack/cinder: Adds metadata in search option for snapshot  https://review.openstack.org/37810503:39
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openstackgerritYves-Zhang proposed openstack/cinder: Ceph backup driver:delete the 'backup snapshot' for target volume  https://review.openstack.org/39264605:04
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openstackgerritxianming.mao proposed openstack/cinder: Use method is_valid_boolstr from oslo_utils  https://review.openstack.org/38572105:50
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openstackgerritJohnnyChou proposed openstack/cinder: Infortrend - Add MPIO support for iSCSI.  https://review.openstack.org/39428406:24
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openstackgerritJohnnyChou proposed openstack/cinder: Infortrend - Add MPIO support for iSCSI.  https://review.openstack.org/39428406:46
openstackgerritJohnnyChou proposed openstack/cinder: Infortrend - Add MPIO support for iSCSI.  https://review.openstack.org/39428406:52
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openstackgerritTommyLike proposed openstack/cinder-specs: Cinder volume revert with latest snapshot  https://review.openstack.org/31654008:32
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openstackgerritYves-Zhang proposed openstack/cinder: Fix typo error  https://review.openstack.org/39431508:36
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-openstackstatus- NOTICE: Gerrit is going to be restarted due to slowness and proxy errors08:45
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openstackgerritTommyLike proposed openstack/cinder-specs: Cinder volume revert with latest snapshot  https://review.openstack.org/31654008:58
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openstackgerritOpenStack Proposal Bot proposed openstack/cinder: Updated from global requirements  https://review.openstack.org/39378909:16
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openstackgerritSoffie Huang proposed openstack/cinder: FalconStor: Restore option "san_secondary_ip"  https://review.openstack.org/35583609:36
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TommyLikeHu__hey guys: does cinder's retype command support migration among different backend and different host?09:40
TommyLikeHu__please check the doc: http://docs.openstack.org/developer/cinder/devref/migration.html09:40
TommyLikeHu__secion 'Scenario 2 for migration'09:40
TommyLikeHu__I did not see the host arguments, so how the different host supported?09:41
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TommyLikeHu__or we need a commmand sequence comprised of 'migration' and 'retype' ?09:46
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openstackgerritmichaeldovgal proposed openstack/cinder: Add if host's cinder-volume service is disabled validation  https://review.openstack.org/37788609:57
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openstackgerritPony Chou proposed openstack/cinder: Add QNAP ES Storage Driver  https://review.openstack.org/30987210:12
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openstackgerritmichaeldovgal proposed openstack/cinder: Add check if volume type has access for the project  https://review.openstack.org/39384010:19
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TommyLikeHu__anyone would like to review this patch :https://review.openstack.org/#/c/379255/ thanks~11:00
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openstackgerritxianming.mao proposed openstack/cinder: Drop unused parameter in class EntryCreateTask.  https://review.openstack.org/38476611:35
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openstackgerritxiaoqin proposed openstack/cinder: Add multipath enhancement to Storwize iSCSI driver  https://review.openstack.org/30888211:56
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scottdaTommyLikeHu__: You can do 'cinder retype --migration-policy on-demand <volume_type_on_different_host>'13:45
scottdaTommyLikeHu__: To migrate from host A to host B you would need a new volume type 'X' on host B and then 'retype --migration-policy on-demand X'13:46
TommyLikeHu__scottda: cool~, very clear, thanks~13:47
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openstackgerritJon Bernard proposed openstack/cinder: RBD: support driver-assisted volume migration  https://review.openstack.org/25609115:25
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openstackgerritJon Bernard proposed openstack/cinder: RBD: support driver-assisted volume migration  https://review.openstack.org/25609115:26
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openstackgerritmichaeldovgal proposed openstack/cinder: Add if host's cinder-volume service is disabled validation  https://review.openstack.org/37788615:37
openstackgerritMerged openstack/python-cinderclient: Optimize: add build_query_param method to clean code  https://review.openstack.org/37925515:41
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openstackgerritMerged openstack/cinder-specs: Move dynamic reconfig to Ocata specs  https://review.openstack.org/39290015:57
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openstackgerritJon Bernard proposed openstack/cinder: RBD: improve readability in over provisioning tests  https://review.openstack.org/39192716:03
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ildikovhemna: hi. are you around?16:07
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erlon-airlongjungleboyj:16:13
erlon-airlongjungleboyj: ping16:13
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openstackgerritMerged openstack/cinder: NetApp ONTAP: Deprecate 7-mode driver  https://review.openstack.org/39345016:13
openstackgerritEric Harney proposed openstack/cinder: Remove barbicanclient dependency  https://review.openstack.org/39451416:14
erlon-airlongjungleboyj:16:14
erlon-airlongjungleboyj: damn, sorry about the flooding, it this autocompletion16:15
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jungleboyjerlon-airlong: Pong16:17
erlon-airlongjungleboyj: hey Jay16:18
erlon-airlongjungleboyj: can you have a look in the VSP driver when you have a chance?16:18
jungleboyjerlon-airlong: Hey!  Oh, sure.  Can you send me a link?16:19
erlon-airlongjungleboyj: CI and tests are already passing: https://review.openstack.org/#/c/389377/16:19
jungleboyjOk.  Thanks.16:19
jungleboyjThat is the one we talked about in Barcelona?16:19
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hemnaildikov, hi16:30
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ildikovhemna: morning :)16:31
hemnait is :)16:31
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ildikovhemna: :)16:32
ildikovhemna: I thought if we have "quorum" for the Cinder-Nova meeting today we could have a Hangouts call16:32
ildikovhemna: and maybe this time recorded/published16:32
ildikovhemna: and if I know correctly you're the subject matter expert on this16:32
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hemnaoh, do you want me to fire up a cinder hangout and record it ?16:33
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hemnawhat time is the meeting ?16:34
ildikovit's 1700UTC16:35
ildikovso 25 minutes from now16:35
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mdovgaljungleboyj, Jay, hi. Hope, you are fine)16:38
mdovgalA few days ago I asked you about adding volumes with private types for other project when user have admin's privileges.16:38
mdovgalMaybe my explanation wasn't as clear as necessary.16:38
mdovgalCould you take a look at this patch if you can? https://review.openstack.org/#/c/393840/16:38
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jungleboyjLooking.16:40
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jungleboyjmdovgal: Talking to smcginnis about this here.16:42
jungleboyjYou are concerned that the admin can create volume types for projects that they are not associated with.  Correct?16:43
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openstackgerritMerged openstack/python-cinderclient: Updated from global requirements  https://review.openstack.org/39281616:45
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jungleboyjmdovgal: Ok, so looking at this, you concern is if I have a private type that is for the project Coke the admin can still go and create volumes in the Pepsi project using the Coke volume type.16:49
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openstackgerritTom Swanson proposed openstack/cinder: Dell SC: Live Volumes not cleaned up  https://review.openstack.org/38467516:52
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openstackgerritMerged openstack/cinder-specs: Changed the home-page of cinder-specs in setup.cfg  https://review.openstack.org/39009216:53
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jungleboyjhemna: ^^ Thoughts on mdovgal s bug?16:55
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hemnadamn irc keeps disconnecting17:07
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SwansonI can see how that might, ahem, irc you.17:08
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hemnathe admin should be able to see everything afaik17:09
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smcginnishemna: On your new companies wifi?17:11
hemna:P17:12
hemnashit, I guess I didn' inherit that one now didn't I?17:13
hemnaI did17:13
smcginnishehe17:13
hemnahttps://goo.gl/vJtl17:13
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SwansonBackport anyone? https://review.openstack.org/#/c/393439/17:30
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Swansonjungleboyj, Thanks!17:37
jungleboyjSwanson: Welcome.17:37
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openstackgerritMerged openstack/os-brick: Change assertTrue(isinstance()) with optimal assert  https://review.openstack.org/36415817:51
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mriedemjgriffith: left some high level notes in https://review.openstack.org/#/c/387712/2/cinder/api/v3/attachments.py18:14
jgriffithmriedem: thanks18:14
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jgriffithmriedem: yeah, so I am going to rework that to replace reserve for you, and NOT require the connector; so that will come later as an attachment_update18:15
jgriffithmriedem: I'll ping you when I get something posted to make sure we're on the same page, but I think that we are18:16
mriedemcool18:16
mriedemthat would get the 6 calls we have today down to 3 i think18:17
mriedemand they are all calls on the attachment18:17
jgriffithYeah, I like the direction this goes in18:17
mriedemsomething like that18:17
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mriedemthe only downside might be baking attaching state logic into the create_attachment call...but i thought the attachments had some status value or something18:19
mriedemlike maybe the attachment record is ATTACHING until it's updated with a connector, at which point it's ATTACHED, and the volume doesn't go in-use until all of it's attachments are ATTACHED18:20
jgriffithmriedem: correct, we have an attach_status in the attachment object18:20
mriedemthat is racy though b/c nova updates the attachment with the connector before it calls os-brick to connect the volume....but nova also rolls that back if the os-brick connect_volume call fails18:20
mriedemat that point nova might just delete the attachment18:20
jgriffithmriedem: the only thing I need to figure out is the relationship between the volume-status and the attachment_status18:21
jgriffithwhat we have currently has some problems with them getting out of sync18:21
jgriffithmriedem: so if Nova does that we should just have it call attachment_update to reflect that no?18:21
jgriffithmriedem: the multi-attach case of the volume-status is something that needs some work18:22
mriedemdoes what to reflect what?18:22
jgriffithmriedem: so the problem today is we use both18:22
mriedemwhen does nova get the connection_info back? when it provides the connector when calling update-attachment?18:22
jgriffithmriedem: we use volume-status [attaching, in-use, detaching, available], and we also use attachment_status [attaching, detaching, attached, detached]18:23
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jgriffithmriedem: yes, so the rework would be that update_attachment is what returns the connection info18:23
mriedemok.18:24
mriedemnova could still call os-attach to ack that the host connection was successful if we needed to18:24
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mriedemi don't really like that b/c it gets us more to what we're doing today, which is this orchestrated back and forth at each step in the process18:24
jgriffithmriedem: right18:25
jgriffithmriedem: sort of defeats the purpose IMO18:25
mriedemthe devil is in the details i guess18:25
mriedemif we have some kind of race18:25
jgriffithmriedem: if we end up back at that point again then it's just evidence that what we have isn't really dumb18:25
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mriedemthat's something i was trying to figure out at the summit - are the existing APIs not all that bad and we just needed to update them to store more info on the cinder side, and provide more info to nova (like if the connection is shared or not)18:26
mriedemit's hard to not get distracted by the tradeoffs18:26
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jgriffithmriedem: agreed, and honestly I was/am in the same boat.  Rewrite with more info vs consolidating18:29
jgriffithmriedem: At this point though I think it's worth trying to consolidate at least a little bit and give them their own object18:29
jgriffithmriedem: even if that ends up being multiple calls again at least it's focused on the attachment piece instead of the volume which is where things are kinda messy right now18:30
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jgriffithmriedem: also, we have a big problem on the cinder side currently due to "interpretation" of what the calls are for or should do18:30
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mriedemtrue,18:31
mriedemand this probably makes things easier for multiattach, rather than trying to fit multiattach logic into the existing flow in nova18:32
jgriffithmriedem: that's honestly the biggest win I think (multi-attach)18:32
jgriffithmriedem: shoe horning it into what we have has proven to be "ugly" and error prone18:32
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jgriffithmriedem: the only thing that I'm still not completely sure how I address is rolling upgrades.  I think things work out but there are some details there that could be problematic18:33
jgriffithmriedem: things like migrating from one compute host to another that are on different versions18:34
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mriedemi think some of that is handled on the nova side by whether or not the bdm has the attachmend_id set18:34
mriedem*attachment_id18:34
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jgriffithmriedem: yeah, ideally18:35
openstackgerritMerged openstack/cinder: storwize: get_host_from_connector optimization  https://review.openstack.org/38933618:35
mriedemplus, nova can always do the 'old way' until all computes are upgraded18:35
mriedemi think there is some wording around that in johnthetubaguy's spec18:35
mriedembut new nova-api would call create_attachment and store the attachment_id in the bdm i think18:35
jgriffithmriedem: right, I just have to be careful of how things transition, in other words, the "old" method not using/cleaning up all of the things in the attachment object18:35
mriedemcomputes can check the bdm.attachment_id to know if the api did the new thing or not18:36
mriedemsure18:36
jgriffithmriedem: so the nova change I pushed of this does exactly that (stores the attahment_id in the bdm) and uses that to determine what to call18:36
jgriffithmriedem: I'm just considering the case of starting things on an updated compute-node and finishing them (detaching etc) on an "old" version of the compute node.  That's a bug in the V1 POC that I never fixed18:37
jgriffithmriedem: anyway, I'll get to that detail and I'm sure we can make it work18:38
openstackgerritOpenStack Proposal Bot proposed openstack/cinder: Updated from global requirements  https://review.openstack.org/39378918:38
jgriffithI just hope we don't look at this and decide that multi-state calls are going to be a requirement18:38
jgriffithie the old method18:38
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openstackgerritOpenStack Proposal Bot proposed openstack/os-brick: Updated from global requirements  https://review.openstack.org/39410418:45
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ildikovjgriffith: if Nova does not start to use the new things until all the computes are updated, then I guess it's not issue18:49
jgriffithildikov: oh, that's true; I think we even talked about that as an option at one point via the conductor or something18:50
ildikovjgriffith: as this sounds similar as having a compute supporting mutli-attach and the other does not, so we ended up blocking the whole thing until all the lowest compute version is high enough to handle that18:50
jgriffithildikov: perfect18:51
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ildikovjgriffith: maybe at one point we did, I think when we get there to have the PoC version sorted out this can be the polishing phase along with microversioning on the Cinder side18:51
ildikovjgriffith: I alreayd have to play with checking compute versions just to remove check_attach from Nova, so this thing definitely exists...18:53
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openstackgerritMerged openstack/cinder: NetApp: Report shared blocks exhaustion  https://review.openstack.org/38969220:15
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e0nehemna: hi Walt, just a quick question according to https://review.openstack.org/#/c/393840/21:07
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hemnasure21:09
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e0nehemna: I'm trying to clarify what is a correct behaviour and what we're trying to fix21:16
hemnaok21:16
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e0nehemna: e.g. volume typeA is private and associated with tenant A21:16
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e0nehemna: but admin can create volume with typeA in tenantB21:17
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e0nehemna: it's confusing, IMO21:17
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hemnayah it is21:18
e0neshould we fix it?21:18
smcginnisI think the point was there's nothing to fix, right?21:18
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e0nesmcginnis: I'm not sure, TBH21:19
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smcginnisThe admin is allowed to do that since they are the admin, so the behaviour is expected.21:20
xyang1e0ne: can admin associate typeA with tenant B in this case?21:21
e0nexyang1: yes21:21
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xyang1e0ne: so that should be fine21:22
xyang1e0ne: typeA can be associated both tenants21:22
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e0nexyang1: yes, but I don't understand why we allow admin to create volumes with any types for any tenants21:23
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xyang1e0ne: admin can do it, but tenantB can't create a volume of type A until admin make the association.  so that seems ok21:26
e0neok21:26
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e0neif everybody think that it's OK, I have to agree with you21:27
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e0nethanks for the feedback. please, close https://bugs.launchpad.net/cinder/+bug/1637549 as incomplete21:30
openstackLaunchpad bug 1637549 in Cinder "Private volume types are not working for multi tenancy" [Undecided,In progress] - Assigned to Michael Dovgal (mdovgal)21:30
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xyang1e0ne: is there an entry for volume type A and tenant B added to the volume_type_projects table?21:31
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smcginnisI think if the tenant is granted access to the type, but even without that, as the admin I should be able to say "this tenant needs a volume of this volume type", even if that volume type is not something they have access to otherwise.21:34
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xyang1smcginnis: I think in that case, tenantB and volume type A should be added to the volume type access table21:36
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openstackgerritTom Swanson proposed openstack/cinder: Dell SC: Live Volumes not cleaned up  https://review.openstack.org/38467521:37
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smcginnisxyang1: But you might not want to give them access to create other volumes from that type.21:39
xyang1smcginnis: that is odd21:39
xyang1smcginnis: https://review.openstack.org/#/c/105546/4/specs/juno/private-volume-types.rst21:39
mriedemhemna: are you ok with this? https://review.openstack.org/#/c/393941/21:40
mriedemi wanted to get that released so nova can start handling that specific exception type21:40
hemnalet me check21:40
xyang1smcginnis: the spec said access to private type can be controled by adding or moving project from it21:40
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smcginnisxyang1: Right, but the question was around whether and admin can use on to create a volume for another project.21:41
hemnag2g21:41
xyang1smcginnis: so by allowing that we are creating a third volume type - not public, not private21:42
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smcginnisStill private, just the admin has the ability to use whatever type they want. Cuz they're the admin.21:43
xyang1smcginnis: I don't know what use case that is21:43
smcginnisOne off special cases.21:43
xyang1smcginnis: to tenant B, it is not a type he/she can use21:44
xyang1smcginnis: yet it is a type he/she can use because somehow he got a volume of that type21:44
smcginnisRight21:45
xyang1smcginnis: so that is a weird behavior21:45
smcginnisIt's unusual, but I think correct behavior.21:46
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mriedemhemna: thanks22:00
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Swansoncinder.tests.unit.volume.drivers.ibm.test_storwize_svc.StorwizeSVCFcDriverTestCase.test_storwize_get_host_from_connector_with_lshost_seems an odd test for my Dell driver patch to fail on...22:02
mriedemnot if you like racey tests22:02
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mriedemi know i do22:02
Swansonracey?22:03
mriedemthe test just might have an inherent race22:03
mriedemand your patch hit it22:03
mriedemdoesn't mean your patch caused it22:03
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mriedemsee https://review.openstack.org/#/c/394585/22:03
mriedemhappens all the time22:03
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mriedemdo you have a link to the failed job?22:03
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SwansonIt is in progress now ... http://logs.openstack.org/75/384675/4/check/gate-cinder-python27-db-ubuntu-xenial/d170e5a/ is the failure...22:05
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openstackgerritWalter A. Boring IV (hemna) proposed openstack/cinder: Added fczm decorators  https://review.openstack.org/39465522:08
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mriedemSwanson: why don't you have a unit test for that bug fix?22:13
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SwansonI thought I had a unit test for get_live_volume returning None.22:16
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xyang1mriedem: is Ocata-3 the merge deadline for all Nova features, both high and low priorities?22:16
mriedemxyang1: yes22:16
xyang1mriedem: thanks22:16
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mriedemSwanson: to be clear, i have no vested interest in how well the dell storage driver works in cinder, just seems if you're fixing a bug, you should have a unit test with it22:17
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Swansonmriedem, I thought I did. (The bug being that None was always going to be returned.) I can add a check to make sure that function is called as expected and will do so.22:19
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openstackgerritMerged openstack/os-brick: Raise specific exception for an invalid protocol connector  https://review.openstack.org/39394122:37
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openstackgerritTom Swanson proposed openstack/cinder: Dell SC: Live Volumes not cleaned up  https://review.openstack.org/38467522:41
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waj334So, I'm making this happen: https://bugs.launchpad.net/python-cinderclient/+bug/163996422:45
openstackLaunchpad bug 1639964 in python-cinderclient "Support microversioning in cinder client" [Undecided,New] - Assigned to Justin A Wilson (justin-wilson)22:45
waj334Any ideas or objections?22:46
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mriedemsmcginnis: are you ok with me putting up an os-brick release request so i can get https://review.openstack.org/#/c/393941/ ?22:49
mriedemthis is the change log http://paste.openstack.org/show/588323/22:50
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mriedemit would be a minor version bump to 1.8.0 b/c of https://github.com/openstack/os-brick/commit/bc9cba0250f8aac24b0d60cb7adc3bbc2fae8e4d22:53
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openstackgerritMerged openstack/os-brick: Updated from global requirements  https://review.openstack.org/39410423:23
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jgriffithhemna: around?23:46
hemnayah23:46
jgriffithhemna: wanted to pick your brain about something....23:46
jgriffithhemna: I was thinking about the whole shared connection thing...23:47
hemnaok23:47
jgriffithhemna: considering the idea of changing that attachment-specs table I created to a connection table23:47
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jgriffithhemna: so it would have all the connector info, and it would also have a new column to backref to attachments that are "using" it23:48
jgriffithneeded to run it by somebody besides my Austrailian Shepherd and Lab to see if it makes sense or not23:48
hemnacan we just add this info in the existing volume_attachments table as new columns?23:48
jgriffithThe backref is kinda funky for it23:48
jgriffithhemna: well, not really.... because take a UUID23:49
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jgriffithshoving multiple UUID's into a string representation in the db ?23:49
jgriffithI mean, I guess we can23:49
jgriffithJust seems error prone23:49
hemnayou mean for the 2nd attachment ?23:49
jgriffithI started with that method btw FWIW23:49
jgriffithhemna: well.... oh wait23:50
hemnawhy not 2 rows in the same table ?23:50
jgriffithmaybe this is a forest for the trees moment :)23:50
jgriffithhemna: ok, but what if you have 3 attachments?23:50
jgriffiththen 423:50
jgriffithetc etc23:50
hemna4 rows then23:50
jgriffithhemna: ok, what if I have 1023:50
hemnaI guess we do have a limitation of the volume only being able to attach to the same UUID once.23:51
jgriffithhemna: it never ends, cats living with dogs... fish walking on the earth... mahem ensues23:51
hemnamaybe I'm not foll23:51
jgriffithhemna: also, one thing I should verify; I've been under the assumption that some backends share a target for multiple volumes no?23:51
hemnaI don't think I'm following what the issue is sorry23:51
jgriffithhemna: that's ok I'm not sure I'm following any more either :)23:52
jgriffithhemna: so the problem I'm trying to solve is that "shared_connections" issue23:52
hemnadifferent volumes having the same target ?  iqn + lun id ?23:52
jgriffithhemna: so if I have 'n' volumes attached to an initiator and they all share the same connection23:52
jgriffithhemna: well that was a question really, because it's been mentioned as a problem scenario but I don't know the exact scenario outside of multi-attach where that comes up23:53
hemnaso wouldn't those all be just different rows in the volume_attachment table ?23:53
jgriffithhemna: oh, I see what you're saying....23:54
jgriffithhemna: yes, but I'm trying to figure out an elegant way to track all of those rows that are shared23:54
jgriffithhemna: so I have attachment A and attachment B23:54
jgriffithhemna: they share the same connection to host Z23:55
hemnaand possibly the same target info23:55
jgriffithhemna: right23:55
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hemnaso we could do a few things maybe23:55
jgriffithhemna: so I was playing with the idea of having a backref to a "shared thing" with a reference count or something23:55
hemnamodify the drivers to return a shared flag.....23:56
jgriffithhemna: yeah, that we HAVE to do regardless23:56
hemnaor have the volume manager look at the target information and compare it to existing attachments to the same host23:56
hemnathe target should be identical for the shared exports no ?23:56
jgriffithhemna: oh, yeah... I guess that's actually not so bad23:56
jgriffithhemna: in fact I did that at one point :(  "get_attachments_by_host"23:57
jgriffithhemna: I think I just rat holed on this for no reason :)23:57
hemnait sure helps to store the host in every entry23:57
jgriffithhemna: maybe that's why my dog looked at me so weird when I asked him23:57
jgriffithhemna: yeah... and we're doing that now23:57
hemnaso just add a connector column to the existing table and store it when we get it23:58
jgriffithhemna: host or initiator iqn23:58
jgriffithhemna: yep23:58
jgriffithhemna: which in V2 I have as well... I just call it attachment_specs and leave it as free form KV pairs23:58
jgriffithI might change that23:58
jgriffithlet the driver tell me it's sharing a connector with ID xyz for example23:59
hemnayah I think that's probably cleaner and easier to maintain23:59
jgriffithhemna: I think you're right, thanks!23:59

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