Tuesday, 2017-10-17

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smcginnisjgriffith: Huh, I wonder what else happens with the super call that makes that not work. Glad you're getting there though!00:46
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openstackgerritzhangbailin proposed openstack/cinder master: Replace http with https for doc links in cinder  https://review.openstack.org/50024500:53
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openstackgerritTommyLike proposed openstack/cinder master: [policy in code] Add support for volume, volume type resources  https://review.openstack.org/51142701:57
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openstackgerritTommyLike proposed openstack/cinder master: Move 'zoning_mode' back to DEFAULT section  https://review.openstack.org/51220802:44
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openstackgerritzhangbailin proposed openstack/cinder master: Replace http with https for doc links in cinder  https://review.openstack.org/50024503:15
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openstackgerritTommyLike proposed openstack/cinder master: Move 'zoning_mode' back to DEFAULT section  https://review.openstack.org/51220806:07
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openstackgerritNam Nguyen Hoai proposed openstack/python-cinderclient master: Use generic user for both zuul v2 and v3  https://review.openstack.org/51250206:48
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openstackgerritAlexandru Muresan proposed openstack/cinder master: RemoteFS: revert snapshot support  https://review.openstack.org/51001606:49
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openstackgerritAlexandru Muresan proposed openstack/cinder master: RemoteFS: revert snapshot support  https://review.openstack.org/51001606:52
openstackgerritShunei Shiono proposed openstack/cinder master: NEC driver: Never use target info in migration_status  https://review.openstack.org/51173706:56
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openstackgerritjunbo.li proposed openstack/cinder master: Remove duplicate build_sphinx command for api-ref  https://review.openstack.org/51250706:58
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openstackgerritNam Nguyen Hoai proposed openstack/python-cinderclient master: Use generic user for both zuul v2 and v3  https://review.openstack.org/51250207:22
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openstackgerritzhufl proposed openstack/cinder master: Fix "import xx as xx" grammer  https://review.openstack.org/51252707:45
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swrightHi! I need to move some large volumes between openstack deployments. Apart from backups to shared storage or saving as an image thru glance, is there any other way to port volumes across?08:03
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openstackgerritAlexandru Muresan proposed openstack/cinder master: RemoteFS: revert snapshot support  https://review.openstack.org/51001608:55
openstackgerritAlexandru Muresan proposed openstack/cinder master: SMBFS: Enable reverting snapshots  https://review.openstack.org/51254508:55
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evrardjpEverything seems working that's good :)09:12
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evrardjpIf I could get some extra core votes on https://review.openstack.org/#/c/512259/ that would allow us to release by including this in our sha bump (for first Q milestone)09:13
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evrardjpthanks!09:14
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openstackgerritGorka Eguileor proposed openstack/cinder master: Multipath tempest scenarios  https://review.openstack.org/46944509:30
openstackgerrityixuan zhang proposed openstack/cinder master: Storwize : add backup snapshots support This patch adds backup snapshots support for Storwize/SVC driver. The change implements attach and detach snapshot: initialize_connection_snapshot terminate_connection_snapshot  https://review.openstack.org/51256209:40
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openstackgerrityixuan zhang proposed openstack/cinder master: Storwize : add backup snapshots support  https://review.openstack.org/51256209:49
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openstackgerritJeremy Zhang proposed openstack/cinder master: Add v3 api-ref for updating specific extra specs for a volume type  https://review.openstack.org/51257109:54
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niraj_singhi am new to openstack. Can anyone pls tell me the cinder APIs which uses novaclient.13:07
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openstackgerritUnana Okpoyo proposed openstack/cinder master: VMAX driver - Deprecate backend xml configuration  https://review.openstack.org/50884313:34
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geguileojungleboyj: patrickeast could you have a quick look into this easy patch that fixes an iSCSI race condition issue?  https://review.openstack.org/#/c/507653/13:44
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jungleboyjgeguileo:  Hey.  Sure, I can take a look.14:02
geguileojungleboyj: thanks, it is an easy one  ;-)14:03
gouthamrhey, anyone here can help me figure out how to set the log level for os_brick? trying to debug failures in the image copy from glance workflow in the cinder-volume service14:03
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jungleboyjgeguileo:  Good to go.14:06
openstackgerritUnana Okpoyo proposed openstack/cinder master: VMAX driver - Add async replication support  https://review.openstack.org/50922214:06
geguileojungleboyj: awesome!!! thanks!!14:07
jungleboyjThank you.14:07
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gouthamrhmmm, afaics it is inheriting cinder's log level.. weird, that some iscsiadm stuff isn't getting logged on failure14:13
smcginnisgouthamr: Yeah, should just run at whatever log level cinder is set to use.14:13
jungleboyjgouthamr:  I thought that it used the same log level as what was set for Cinder or Nova.14:13
jungleboyj:-)  Jinkx14:13
smcginnisgouthamr: You could explicitly raise the log level of os-brick with a setLevel call for debugging, but shouldn't be necessary.14:14
openstackgerritUnana Okpoyo proposed openstack/cinder master: VMAX driver - Enable CHAP authentication for vmax backend  https://review.openstack.org/51061414:14
gouthamrsmcginnis jungleboyj: :) iscsiadm fails and the reason is swallowed, it might be intentional to better format the error message..14:14
gouthamrsmcginnis: oh, i'll try that.... thank you14:15
openstackgerritUnana Okpoyo proposed openstack/cinder master: VMAX driver - Cannot extend volumes in a replication relationship  https://review.openstack.org/51181214:15
openstackgerritMerged openstack/cinder master: Make stringify header work under python2.  https://review.openstack.org/51225914:21
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tommylikehujungleboyj:  one more policy patch:) https://review.openstack.org/#/c/510722/, thanks!14:23
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jungleboyjtommylikehu:  You are a machine!14:26
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jungleboyjtommylikehu:  Approved.  Thanks for all the work there.14:32
tommylikehujungleboyj:  Thanks, and the rest are on their ways :)14:34
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jungleboyjtommylikehu:  Sounds good.  I know there is the large Volume patch that I still need to look through.14:42
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tommylikehujungleboyj:  yes, plus a documentation one :)14:42
jungleboyjOh, where is that one?14:43
jungleboyjtommylikehu:  ^14:44
tommylikehujungleboyj:  https://review.openstack.org/#/c/512187/ this one, but I need to fix the zuul failure at first :)14:44
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ericyoungif any core developers are bored... https://review.openstack.org/#/c/511921/ needs another + and some workflow14:47
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jungleboyjtommylikehu: I added some thoughts in the doc patch while you are looking at the other issue.14:50
jungleboyjericyoung:  :-)  Ooops, already been there.  What is being bored?14:50
tommylikehujungleboyj:  ok!14:51
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reedip_Hi guys ... how can we define provider_auth for Iscsi in Cinder?14:54
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ericyoungjungleboyj, thanks for checking :)15:06
ericyoungI didn't imagine anyone would be bored, but I am here to help15:06
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johnthetubaguyjungleboyj: can I pick your brains about shared cinder attachments (re multi-attach) and the locks?15:12
jungleboyjericyoung:  :-)  glad to help.15:12
jungleboyjjohnthetubaguy:  Sure, I am not sure how helpful I will be but I will try.  :-)15:13
johnthetubaguywe were talking about a host local lock on the Nova side, and I am now not sure if that is good enough15:13
johnthetubaguyI am curious about the cinder context of where the races occur15:14
johnthetubaguyI think the os-brick attach can race an attachment_delete on the cinder side15:14
johnthetubaguylike we scan the luns at the same time as one being removed, bad things happen15:14
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johnthetubaguyit just seems odd now we only lock on a single host on the nova side, that seems to assume each shared connection is independent15:15
jungleboyjOh right.  Yeah, so if you have two detachments happening at the same time it could race talking to the backend.15:15
johnthetubaguyit feels driver dependent, but I am hoping someone could tell me I shouldn't worry abou tit15:15
johnthetubaguyyeah15:15
johnthetubaguyI am guessing its one set of luns attached to all hypervisors, quite commonly?15:16
jungleboyjSo, first, if the lock is on the host side we are assuming that multi-attachments are only  on a single host which is not a good assumption.15:16
johnthetubaguyyeah, that was my worry15:16
johnthetubaguymaybe this is why we had all the talk of a lock key?15:17
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johnthetubaguyif we get the shared_targets lock key, we can then DLM on that key?15:17
jungleboyj*Sigh*  So it seems we need to consider the Cinder side.  Let me think here.15:17
johnthetubaguyyep sure15:17
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johnthetubaguyFWIW, I was just thinking about creating a volume from an image, while all this is happening15:17
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johnthetubaguyjungleboyj: I attempted some pseudo code here: https://review.openstack.org/#/c/499777/5/specs/queens/approved/cinder-volume-multi-attach.rst@5315:18
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reedip_johnthetubaguy ,jungleboyj : ping15:19
jungleboyjSo, how racey things depends on the backend.15:20
jungleboyjreedip_:  Yes?15:20
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reedip_I need some help . I am unable to configure Cinder with iSCSI drivers. The CHAP username and password generated for volumes are random values.15:21
reedip_jungleboyj : probably from https://github.com/openstack/cinder/blob/c7cbf7614e764dca4e446ba240ee798603025e97/cinder/volume/targets/iscsi.py#L19715:21
reedip_jungleboyj : but I am not sure how I can pass the username password in cinder.conf for CHAP. I am using Mitaka15:21
jungleboyjWhat driver are you using?15:22
reedip_iSCSI, but not specific to any third party15:22
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reedip_jungleboyj : cinder.volume.drivers.lvm.LVMVolumeDriver15:23
jungleboyjreedip_:  Ok, so the LVM Driver.15:23
reedip_Thats the volume driver in [lvm] section15:23
reedip_yes15:23
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jungleboyjSo, I believe it is designed to use random CHAP username/password so that you don't need to worry about it.  :-)15:23
reedip_but the problem is that Volumes cannot attach with the VM. We identified that the issue occurs due to the Username password mismatch.15:25
reedip_There is a function to get the chap information from volume, so there should be a function to set the information as well. I believe it is here15:25
reedip_jungleboyj : https://github.com/openstack/cinder/blob/c7cbf7614e764dca4e446ba240ee798603025e97/cinder/volume/targets/iscsi.py#L13115:25
reedip_jungleboyj : but I am not sure what it is actually reading to get this information :(15:26
reedip_if we can set a specific username password, then it would be easier for us15:26
jungleboyjreedip_:  Hold on.  Looking.15:26
reedip_iscsi target and initiator can then talk to each other15:26
reedip_jungleboyj : thanks ...15:26
jungleboyjreedip_:  Can I wrap up with johnthetubaguy  here.15:28
reedip_jungleboyj: yes sure.. sorry for the interruption15:28
jungleboyj:-)15:29
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jungleboyjjohnthetubaguy:  So, I think how much we have to worry about a race on the backend depends on the backend.15:29
johnthetubaguyjungleboyj: I was worried that might be the case15:30
openstackgerritJohn Griffith proposed openstack/cinder master: Add display_name to solidfire volume attributes  https://review.openstack.org/51267115:30
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jungleboyjMost drivers have some locking in place if it is something that their backend needs to worry about.15:30
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jungleboyjSo, we are making drivers specify if they are able to do multi-attach ... right?15:31
johnthetubaguyreedip_: I thought cinder would send Nova the password, which would get used here (in new ish versions of Nova): https://github.com/openstack/os-brick/blob/af2f60f9bab271ba26d4d1e8f15e0d1ce7f1ccec/os_brick/initiator/connectors/iscsi.py#L100715:31
johnthetubaguyjungleboyj: we are...15:31
johnthetubaguybut we have a probable without multi-attach15:31
johnthetubaguyproblem15:31
johnthetubaguyI guess what we want is the lock key from the back end, then use a DLM on that key?15:32
jungleboyjjohnthetubaguy: Right, but the problem is that the backends need to be aware of locking implications for detach.  Right?15:32
smcginnisI thought we were returning up the lock key so the backends could control at what scope the locking needed to be done at.15:32
reedip_johnthetubaguy : exactly , the new-ish version ... mine is mitaka :| .. :(15:32
jungleboyjreedip_:  :-(15:33
reedip_cinder still supports dirverfixes/mitaka branch, doesnt it ?? :)15:33
jungleboyjsmcginnis:  That is what I am trying to get at.  It seems that the backends need to be able to decide what locking they need if the are supporting multi-attach.15:34
jungleboyjI am not sure why we need to worry about DLM in any specific manner on the Cinder side given that the driver isn't more distributed than normal here.15:34
smcginnisI don't think multiattach is really an issue, but whether things use shared targets, etc.15:34
jungleboyjIt may be HA, but again, that locking is up to the drivers to handle.15:35
smcginnisYeah, shouldn't need DLM.15:35
jungleboyjI am sure I am over-simplifying.15:36
johnthetubaguythe problem was we have people complaining about data corruption, and we didn't want to make it worse with multi-attach, if I remember correctly15:36
johnthetubaguywhy is the host local lock good enough? I guess I am not understanding that bit15:37
johnthetubaguyif its the same luns exposed to each hypervsiors, surely a detach on any node might cause a problem with an attach happening on a different node? or is that not possible?15:38
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smcginnisjungleboyj: No, nothing on one node should disript IO from another node.15:39
smcginnis*disrupt15:39
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jungleboyjjohnthetubaguy:  Because at the Cinder Volume level it is all going through the same volume service.15:42
jungleboyjOne backend == one volume service15:42
jungleboyjUnless they are HA, which we don't have working yet, but at that point they need to have set up their driver to account for such situations.15:42
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johnthetubaguynot sure I understand the details here, feel I am missing something15:43
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johnthetubaguyeach host connection is a separate volume service, so they are independent?15:44
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johnthetubaguymaybe this is just a case of correctly tearing down the shared connection at the right time?15:45
smcginnisjohnthetubaguy: No, host connection is separate thing from volume service. Control plane vs data plane.15:45
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smcginnisSo for a given backend, there will be a volume service managing it.15:45
smcginnisSo if a detach and attach come in at the same time, that's controlled there.15:45
jungleboyjsmcginnis:  ++15:46
johnthetubaguyOK, volume service is c-vol service, I think I was missing that bit in my head15:46
smcginnisI think the issue is on the host side on whether it needs to lock local changes to attachements.15:46
johnthetubaguyOK, so I am miss understanding the bug15:46
smcginnisSo if the backend has shared targets, it can provide a lock name for nova to use, from what I remember of the discussion.15:46
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smcginnisThen nova would lock on that to prevent local changes conflicting with one another.15:46
johnthetubaguyso there is a tear up / tear down a shared connection, the host local host sure helps there, the key reduces the scope of the lock, thats all good15:47
smcginnisBut it would not matter if there was another compute host doing things, because that will not conflict with anything.15:47
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johnthetubaguyso we spoke about the need for an attachment_update and attachment_delete doing things on the back end that might conflict with local os-brick operations, is that not a thing?15:48
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johnthetubaguyoh, I guess its always on the thing local to the host, like the export?15:48
johnthetubaguyI wish we had written more of this down before15:49
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johnthetubaguysmcginnis: ... so winding back, does the pseudo code in my comment look correct:https://review.openstack.org/#/c/499777/5/specs/queens/approved/cinder-volume-multi-attach.rst@5315:50
jungleboyjSo, do you feel better that if we are locking on the client side that we are ok on the cinder-volume/backend side?15:50
aspiershey guys, just delurking - haven't caught up with the whole conversation here but are you talking about active/active?15:51
jungleboyjaspiers: indirectly.15:52
jungleboyjjohnthetubaguy:  Yes, I think so but then it brings up the question that Matt just put there.  Do we need to be doing DLM then?15:53
openstackgerritMerged openstack/cinder master: [policy in code] Add support for service, limits  https://review.openstack.org/51072215:53
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aspiersjungleboyj: I'd be keen to talk about the self-fencing problem whenever it suits you guys, but I don't mean to butt in here :) https://review.openstack.org/#/c/237076/15:55
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johnthetubaguyjungleboyj: smcginnis: I guess the question is, a single export per volume, but its attached on two different hosts, don't we get a similar race to the shared host connection case, but it needs a DLM?15:56
smcginnisjohnthetubaguy: No, I don't believe so. Attachment modifications on the one host shouldn't impact other hosts.15:57
smcginnisjohnthetubaguy: Sorry, too much going on this morning15:57
smcginnisjohnthetubaguy: I think this is what the pseudocode would look like:15:57
smcginnishttp://paste.openstack.org/show/623861/15:57
jungleboyjaspiers: Looks like that is blocked up.  Would it be worth discussing in tomorrow's weekly meeting.  I would like to keep whatever we can with regards to HA moving forward.15:58
johnthetubaguysmcginnis: why get_connector outside the lock? I guess it doesn't depend on the state of the system?15:58
jungleboyjsmcginnis:  Oh, you are right!15:58
smcginnisjohnthetubaguy: Because the backend will provide the scoping to lock on, IIRC.15:59
jungleboyjSo if you have a potential race condition across multiple hosts it filters down to the backend volume host that will do the locking.15:59
aspiersjungleboyj: thanks, me too :) I'll try to attend the meeting tomorrow15:59
jungleboyjWe just need to worry about multiple attachments on a single host.15:59
smcginnisjohnthetubaguy: If it's shared, then it will provide the same lock name. If it's not, then each connector will have a unique name and it won't really matter.15:59
smcginnisMaybe jgriffith can correct me if I'm wrong, but that's what I remember from the conversation.15:59
jungleboyjOk.  aspiers Can you please add it with an overview of what needs to be discussed to the agenda?15:59
johnthetubaguysmcginnis: but this is a different problem, its two separate hosts, one volume, two attachments, one export, maybe that is not a thing, or cinder deals with the locking already?16:00
jungleboyjaspiers: https://etherpad.openstack.org/p/cinder-queens-meeting-agendas16:00
openstackgerritMerged openstack/os-brick master: Protect against race within os.path.realpath  https://review.openstack.org/50765316:00
openstackgerritMerged openstack/os-brick master: Fix _remove_scsi_symlinks_no_links test  https://review.openstack.org/50765416:00
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jungleboyjThough, let me create the initial entry there.  I thought I had already done that.16:01
smcginnisjohnthetubaguy: Yeah, and I'm saying two separate hosts is not an issue.16:01
reedip_hmm16:02
johnthetubaguysmcginnis: OK, sorry, I am miss-understanding you then16:02
smcginnisAttach for host A, attach for host B, detach for host A will basically be serialized by needing to go through the same backend/service.16:02
smcginnisjohnthetubaguy: Nah, I think we're just concerned about different parts of the process. ;)16:02
jungleboyjaspiers:  Ok, all ready for you.16:03
johnthetubaguysmcginnis: very probably16:03
johnthetubaguysmcginnis: the local lock I am fine with, gives us protection, my worry is what it doesn't protect us against16:03
aspiersjungleboyj: thanks!16:03
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smcginnisjohnthetubaguy: Do you have a specific scenario you are concerned with?16:03
johnthetubaguyyes, mriedem put it on the spec I think16:04
johnthetubaguymulti-attach=true16:04
jungleboyjaspiers:  Thank you.16:04
johnthetubaguyvolume attach on two different hosts16:04
johnthetubaguyhmm, maybe its not an issue, but anyways...16:04
johnthetubaguythen you delete all of them, they race strangley on who deletes the export16:05
johnthetubaguyI guess I don't understand the cross host concern correctly yet...16:05
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smcginnisjohnthetubaguy: Last one in to the backend cinder service would end up doing the deletion I believe.16:05
johnthetubaguyah, right, so its when you do an attach and detach at the same time16:05
johnthetubaguyattach, attach (wait a week) delete, attach, delete16:06
johnthetubaguyI guess its the shared state in cinder that protects us, now we have attachments16:06
smcginnisYep ;)16:06
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johnthetubaguyso if you could all reply on the spec, that would be awesome: https://review.openstack.org/#/c/49977716:07
smcginnisAdded a tab, but will be a little while I think before I can write something there coherently.16:08
jungleboyjjohnthetubaguy: Ok, I will go do that.  I THINK we are ok though.16:08
johnthetubaguyif it helps, thursday is spec freeze for nova, and the last chance for multi-attach this cycle :(16:09
johnthetubaguythanks for your time all, that has helped me, I think16:09
reedip_Ok, this is where the code goes to for creating the final volume : https://github.com/openstack/cinder/blob/master/cinder/volume/targets/tgt.py#L146-L14716:09
smcginnisjohnthetubaguy: As long as we haven't confused you more then that's good. :)16:10
johnthetubaguysmcginnis: heh, time will tell ;)16:10
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jungleboyjjohnthetubaguy: http://gph.is/XJW8nT16:10
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jungleboyjjohnthetubaguy:  Glad to help.  Discussions with you always help me understand Cinder.16:11
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johnthetubaguyjungleboyj: :)16:11
openstackgerritJohn Cates proposed openstack/cinder master: FlashSystem: Add CMMVC6045E CLI error for multi-host mapping  https://review.openstack.org/51164516:12
jungleboyjOk, back to reedip_ ...16:12
reedip_hi jungleboyj ... still trying to understand where the provider_auth populates ...16:13
jungleboyjSo, I wonder if we can get jgriffith to weigh in here.  I think he knows more about how that works for LVM.16:13
jungleboyjThere are some drivers that let you specify the chap username and password but it doesn't appear that LVM is one of them.16:14
reedip_jungleboyj : the get_iscsi_properties is defined in 2 places https://github.com/openstack/cinder/blob/driverfixes/mitaka/cinder/volume/driver.py#L236616:15
jungleboyjreedip_:  Right.  That is the default template for drivers.16:15
reedip_and https://github.com/openstack/cinder/blob/driverfixes/mitaka/cinder/volume/targets/iscsi.py#L4516:15
reedip_jungleboyj : ok .. the problem is , we have used "use_chap_auth" , "chap_username", "chap_password" in cinder.conf16:16
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reedip_but the tgtadm driver gets random values in https://github.com/openstack/cinder/blob/driverfixes/mitaka/cinder/volume/targets/tgt.py#L149-L15016:17
reedip_thats visible in /var/lib/cinder/volumes/ID file as "incominguser RANDOMUSERNAM RANDOMPASSWORD" . The same is also written in the Volumes table in the Cinder database16:18
jungleboyjSo, let me ask a different question.  Why is the chap username and password a problem for you?16:20
jungleboyjAre you trying to then manually attach the volume outside of Nova?16:21
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reedip_jungleboyj : hmm, thats also a point I am truing to think .. I am trying to attach the volume to Nova Instances only16:21
reedip_do I need to define the iscsi target/initiator name in nova.conf?16:22
reedip_jungleboyj : ^^16:22
jungleboyjOh, so you are doing a nova volume-attach and having issues?16:23
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reedip_yes16:28
reedip_in simple terms16:28
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reedip_jungleboyj : the error that is reported is iscsi error 24 ( incorrect username / password )16:32
jungleboyjWeird.16:32
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reedip_exactly ...16:32
jungleboyjreedip_:  Do you have the right iscsi_ip_address set in the config?16:32
reedip_jungleboyj : in nova.conf ?16:33
jungleboyjreedip_:  In Cinder.conf16:37
reedip_we defined it yesterday, after the problem started coming , in cinder.conf. We specified the storage node's IP address in cinder.conf on controller. Is that the right way to do ?16:38
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jungleboyjYes.  Have you recreated volumes since then?  That, I believe is set at volume creation time.16:39
jungleboyjAnd restarted cinder-volume?16:39
reedip_Yes, but same error16:39
* jungleboyj sighs16:39
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jungleboyjThe volume service is running on the controller?16:40
reedip_yep .. cinder-volume, cinder-api , cinder-scheduler16:40
reedip_all restarted16:40
jungleboyjWhat flavor of Linux is on the controller?16:41
reedip_cinder-volume runs on controller and on a storage node. The Volume defined on Controller attaches easily.  the volume on storage doesnt16:41
reedip_Ubuntu 14.04 ( deployment flavor )16:41
jungleboyjAh, ok.  So you have multiple volume processes running?16:42
reedip_I realy *hope* that its not a 14.04 issue16:42
reedip_yes, one on controller ( cinder-volume ) and one on storage16:42
jungleboyjreedip_:  Highly doubt it.  That was working well with Mitaka.16:42
reedip_:)16:43
jungleboyjreedip_:  The storage device is also Ubuntu?16:43
reedip_yes ... Ubuntu 14.0416:43
jungleboyjYou have the exact same  config file on the storage controller and have restarted the cinder-volume service there?16:43
reedip_yes ....16:43
reedip_except minor changes in the IP address16:44
jungleboyjWhere did you set the iscsi_ip_address?16:44
jungleboyjIn the config file?16:44
reedip_Yes ...16:44
reedip_under the [default] sub section16:44
jungleboyjTadah!16:45
jungleboyjDon't do that.  :-)16:45
reedip_??16:45
reedip_Oh .. then where should I define it16:45
reedip_[lvm] ??16:45
jungleboyjTry moving it under the backend configuration .16:45
jungleboyjHold on ... I have some thoughts.  On the phone.16:45
reedip_Hmm ... ok, let me try to do that16:45
reedip_Oh sure ...16:45
openstackgerritJohn Griffith proposed openstack/cinder master: Add display_name to solidfire volume attributes  https://review.openstack.org/51267116:46
jungleboyjreedip_:  Ok, so you should have two separate [backend names]16:47
jungleboyjOne should be defined on the controller.16:48
jungleboyjOne on the storage.  Right?16:48
reedip_yes16:49
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jungleboyjOk, good with different volume_backend_names ?16:49
reedip_no, thats not defined16:49
jungleboyjOk, I think you will want to do that.  That is the safest thing to do and then do not put the ip address in the default section as that will get overridden.16:50
jungleboyjOne of the backends will set it and the other will have the wrong IP.16:50
jungleboyjTry setting it under the [backend] section.16:50
reedip_ok , so what you are saying is to define the backend_host in the [backend] section with different IPs in both controller and storage ?16:51
jungleboyjBackend host?16:52
reedip_thats what defined in the [backend] subsection16:52
jungleboyjI am sorry, I may be confusing you here.16:53
jungleboyjLet me see if I can find an example.16:53
reedip_sure jungleboyj16:53
jungleboyjhttps://www.irccloud.com/pastebin/W5TLxaMw/16:55
jungleboyjreedip_:  ^^^16:55
jungleboyjSo, you would have one like that on the controller.16:55
reedip_ok16:55
reedip_checking16:55
jungleboyjThen on the standalone storage system have the same thing but change where I have 'lvm-controller'16:56
reedip_change to ??16:56
reedip_and the iscsi_ip_address is the address of the controller where one part of sincer lies?16:57
reedip_cinder*16:58
jungleboyjfor lvm-controller16:58
jungleboyjOn the standalone storage backend you need to use the IP of the storage backend.16:58
jungleboyjThe target that is used is local to where the storage lives.16:58
jungleboyjThen make sure that you have 'volume_backend_name' listed in the 'enabled_backends'  under [default]16:59
jungleboyjYou will only have enabled_backends=lvm-controller on the controller and then whatever name you use on the storage box on the storage box.17:00
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reedip_wait ...17:03
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reedip_but the enabled_backend names must not be same , right ?17:04
jungleboyjCorrect.17:04
jungleboyjSince they are two different backends.17:05
reedip_ohhh ... I have the same names :|17:05
jungleboyjYep.  That could be one problem.  You will have unpredictable results there.17:05
reedip_o, thanks for your help jungleboyj17:07
reedip_let me try it out .. thanks a lot for your time :)17:08
jungleboyjIf you need to have one volume type for both backends you can use 'storage_protocol' iSCSI to select from the two backends automatically.17:08
jungleboyjI have that set up in my cloud right now.17:08
jungleboyjThat or use the volume_backend_name and create two separate types if you want them to be separate.17:10
reedip_ok, so we can avoid volume_backend_type , then in that case, using storage_protocol would solve the issue , right?17:11
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jungleboyjreedip_:  Correct.  Since they are both iSCSI the scheduler will use either when depending on the best fit at that point in time.17:11
reedip_and the storage_protocol will also be defined in the [lvm-controller] / [lvm-storage] section , right ?17:12
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reedip_jungleboyj : honestly , I think the issue would be the same name of enable_backends ( I think , because volume at the contoller can be mounted ... this is just an assumption, though)17:14
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reedip_jungleboyj : i think it worked .... thanks a lOT :)17:22
reedip_the name change fixed the issue :)17:22
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jungleboyjreedip_:  Wonderful news!  I played around with having the same name the other day but didn't see that particular issue.17:25
reedip_:)17:25
jungleboyjThat is good to know that that can be a side effect of that mistake.17:25
reedip_thanks a lot for your help ..17:25
jungleboyjreedip_:  Welcome.  Thank you for patiently answering my questions while I tried to figure it out.17:26
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reedip_:) jungleboyj : but this is an interesting learning .... that the same names can create a difficult issue to decipher ...17:28
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jungleboyjYeah, in my case I had different host names configured.17:28
reedip_jungleboyj : should this be documented ? I mean I faced this issue, but I am not sure if anyone else did. And I am not sure if anyone else will, but if someone does ??17:31
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jungleboyjreedip_:  You know.  Not a bad idea.  Something that could go under 'user' or 'reference'17:33
reedip_:) just trying to help :)17:33
reedip_anyways, thanks again, I was able to use 2 VMs from the Storage node. VGS output shows data used from storage node ... thanks a lot for your help jungleboyj17:34
openstackgerritMerged openstack/python-cinderclient master: Use generic user for both zuul v2 and v3  https://review.openstack.org/51250217:35
jungleboyjreedip_:  Welcome.  If you want to submit documentation on this config issue I would be happy to help get it merged.  :-)17:36
reedip_jungleboyj: I would like to leave it to you :) You have a better idea where it will go. It would take me some time to understand the documentation and place it correctly ... :)17:37
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jungleboyjreedip_:  Good learning experience, but ok.17:43
jungleboyjI tried to delegate.17:43
reedip_:) jungleboyj17:45
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openstackgerritJay Bryant proposed openstack/cinder master: Change Install 'Tutorials' to 'Guides'  https://review.openstack.org/51276617:55
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openstackgerritMerged openstack/cinder master: Fix backup compression unit tests  https://review.openstack.org/50750918:08
openstackgerritMerged openstack/cinder master: Run backup compression on native thread  https://review.openstack.org/50751018:08
openstackgerritMerged openstack/cinder master: Add v3 api-ref for updating specific extra specs for a volume type  https://review.openstack.org/51257118:08
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openstackgerritMerged openstack/cinder master: Fix "import xx as xx" grammer  https://review.openstack.org/51252718:12
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openstackgerritJohn Griffith proposed openstack/cinder master: There a number of use cases where it's desirable to do things with volumes out of band (ie not under Cinders control). One example is external backups without the use of c-backup.  https://review.openstack.org/51278618:30
jgriffithgood lord!!18:31
gouthamr:D18:31
gouthamrdidn't even have to open the patch18:31
openstackgerritJohn Griffith proposed openstack/cinder master: Enable using extra-specs for SF attributes  https://review.openstack.org/51278618:32
jgriffithgouthamr: LOL18:32
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jungleboyjjgriffith:  Long summary there.18:33
jgriffithjungleboyj: :)18:33
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jgriffithhey, look I wrote a unit test that actually just tests one function in the code without loading up 3 services, a database and a zillion objects :)18:34
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smcginnisjgriffith: Score!18:43
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ildikovjgriffith: you deserve a cheesecake!18:46
ildikovjgriffith: or that salted caramel Haagen Dazs ice cream :)18:47
smcginnisMmmm18:47
openstackgerritSofia Enriquez proposed openstack/cinder master: [WIP] Adding unit test coverage to flow  https://review.openstack.org/51279619:01
jgriffithildikov: oh man... that sounds REALLY good right now19:01
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ildikovjgriffith: well, it's desert time in Denver by now :)19:06
smcginnisildikov: When is it not desert time?19:09
jgriffithOh!!  No wonder I'm so hungry!19:09
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ildikovsmcginnis: so you were lecturing me the other day that vanilla ice cream is good all day, but salted caramel is only for desert19:13
ildikovsmcginnis: and now this?19:14
ildikovsmcginnis: terrible! :)19:14
smcginnisildikov: Ah, you got me. :D19:15
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ildikovsmcginnis: Ooops :)19:35
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* jungleboyj loves the discussion between you three.20:35
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smcginnisWhat's not to like about ice cream?20:42
jungleboyjUnfortunately, nothing ... except the calories.20:43
jungleboyjIf they had diet ice cream I would have it every day.20:43
smcginnisThat sounds horrible.20:43
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SwansonThey have diet ice cream. Like 300 calories a pint instead of per serving. And it is insanely expensive.21:03
SwansonAnd that is manufacturer's servings. So like 150 a pint instead of the 1 per pint that a normal human would do.21:04
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smcginnisStill sounds horrible.21:09
SwansonThe oatmeal stuff I tried was pretty good. But you have to like an oatmeal cereal.21:10
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SamYaplejgriffith: http://logs.openstack.org/3d/3df3dec2de39522d9e1d0fcf58cec39e2c0aa615/post/publish-loci-cinder/2113e1e/job-output.txt.gz#_2017-10-17_21_13_39_31011821:25
SamYaplesuccessful build and push to dockerhub of loci-cinder based on a cinder post job21:25
smcginnisNice!21:25
SamYapleman i love zuulv321:27
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thingeeSamYaple: very cool22:41
SamYaplei thought so as well. keystone was also happy to add this post job. soon it will be all of openstack22:42
SamYaplemwahahaha22:42
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