Tuesday, 2018-02-27

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openstackgerrityixuan zhang proposed openstack/cinder master: Storwize: modify hyperswap host_site configuration  https://review.openstack.org/53311302:31
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avishayHey everyone.  I know it's a strange question, but rather than using direct-attach disks, can I use SAN volumes (iSCSI/FC) or NFS files?  I'm sure it will work in good flows, I'm thinking more about any integrity issues, and if it would be possible to migrate these "disks" between nodes when failing over (e.g., a node goes down so connect the SAN volume to another node and bring up an OSD there).06:21
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openstackgerrityenai proposed openstack/cinder master: Delete redundant code  https://review.openstack.org/54815906:33
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jungleboyjmelwitt:  Ping.10:02
melwitto/10:03
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jungleboyjmelwitt:  Hey, we have a scheduling issue with the Cinder Team photo.  We are planning to do cross project discussion at 9 am on Thursday.  Right?10:03
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melwittright, 9-11 AM thursday10:04
jungleboyjWould you have a problem if we started a little later so that we can do the photo at 9:10 ?10:04
jungleboyjI am 9 am ?10:04
jungleboyjStart at like 9:15?10:04
jungleboyjmelwitt:  I am not sure how many topics you guys have.  We only have a couple.10:06
melwittsounds cool to me, we can make it 9:15-11:00 AM10:06
jungleboyjmelwitt:  Ok, cool.  I will update.10:06
jungleboyjmelwitt:  Are your topics just in your etherpad?10:07
melwittyes, L255 https://etherpad.openstack.org/p/nova-ptg-rocky10:09
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-openstackstatus- NOTICE: gerrit is being restarted due to extreme slowness10:22
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jungleboyjmelwitt:  I have moved are couple topics over there and added a link from our etherpad to yours.11:01
melwittjungleboyj: k, cool11:01
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openstackgerritSilvan Kaiser proposed openstack/cinder master: Adds Overlay Volumes Created from Snapshots to Quobyte  https://review.openstack.org/50705011:31
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openstackgerritEric Harney proposed openstack/cinder-tempest-plugin master: Sync requirements for cinder-tempest-plugin  https://review.openstack.org/53798513:21
openstackgerritEric Harney proposed openstack/cinder master: use defusedxml to avoid XML attack  https://review.openstack.org/51961813:25
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stvnoyesjgriffith/ildikov - please take a look at https://bugs.launchpad.net/cinder/+bug/1752115 when you get a chance15:28
openstackLaunchpad bug 1752115 in Cinder "detach multiattach volume disconnects innocent bystander" [Undecided,New]15:28
ildikovstvnoyes: sigh15:29
stvnoyesI'll post my tempest test that provokes this.15:30
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stvnoyesI've started running thru the code to see where things are going south.15:31
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ildikovit sounds like the good old target gets destroyed with the first detach issue15:31
stvnoyesyep15:32
stvnoyesit doesn't matter whether you detach from the first or second instance. The other instance loses connectivity either way.15:33
openstackgerritEric Harney proposed openstack/cinder master: use defusedxml to avoid XML attack  https://review.openstack.org/51961815:35
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smcginnisYow15:36
smcginnisstvnoyes: What kind of backend?15:36
stvnoyeslvm15:38
ildikovstvnoyes: if it's the issue we used to have then yeah it doesn't matter where you detach it from first15:41
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ildikovsmcginnis: how do you check whether the target is still exported? my understanding was that os-brick should handle this and I don't recall seeing errors in the test logs as 2 years ago15:43
openstackgerritHelen Walsh proposed openstack/cinder-specs master: Bulk Volume Create within Create Group API  https://review.openstack.org/51419615:43
ildikovsmcginnis: but there's always some weird iscsi stuff in the logs that I cannot sort out easily15:43
smcginnisildikov: jgriffith knows the LVM stuff much better than I do.15:45
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jgriffithhuh15:45
jgriffithLV what?15:45
smcginnisildikov: Maybe we could offer him some nice Irish whiskey.15:45
smcginnisOh right, he didn't come to Dublin. No whiskey for him.15:45
smcginnis:D15:45
jgriffithstvnoyes: scrolling back15:45
jgriffithsmcginnis: :(15:45
ildikovsmcginnis: if he's willing to jump on a plane for it I'm more than happy to finance the whiskey part :)15:45
smcginnisjgriffith: There's still time to get here!15:45
jgriffithsmcginnis: LOL15:46
jgriffithI wish15:46
ildikovjgriffith: yep, just get on a plane, no biggie15:46
jgriffithildikov: ok, shoot me your Credit Card Number :)15:47
* jgriffith is flying business class to Dublin! Yessss!!!15:47
jgriffithStaying at the swankiest hotel15:48
jgriffithstvnoyes: hmm... so one thing on that15:48
ildikovjgriffith: it's tax return period, so it's economy in the middle of the last row :)15:49
jgriffithstvnoyes: did you by chance check to see if the connection was still in tact (ie the /dev/disk/by-path/iscsixxxxxx)15:49
jgriffithI suspect you might be encountering a fs sync problem; but I'll spin it up this morning and have a go at it to see what I can find out15:49
jgriffithildikov: ahh.. my "usual" seat, no problem15:50
jgriffithSIBBT, Seat In Back By Toilet15:51
ildikovon the bright side you have the biggest chance there to survive if the plane goes down :)15:52
openstackgerritHelen Walsh proposed openstack/cinder master: Bulk create - cinder api, scheduler and volume  https://review.openstack.org/54832415:52
jgriffithTBC my employer did not have a problem sending me to Dublin, I had other conflicts though that made it impossible15:54
jgriffithildikov: I don't think that's true15:54
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jgriffithaft of centerline, but forward of the stabilizers15:55
openstackgerritHelen Walsh proposed openstack/python-cinderclient master: Bulk Create - cinder client  https://review.openstack.org/54832715:55
ildikovjgriffith: I haven't gotten a chance yet to test this particular urban legend15:55
jgriffithand when the plane splits in half it's not going to reallly matter where I'm sitting becuase the stroke is likely going to get me15:55
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ildikovjgriffith: and don't really plan to ask for one :)15:56
ildikovjgriffith: every now and then there are survivors15:57
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openstackgerritHelen Walsh proposed openstack/cinder master: Bulk create - cinder api, scheduler and volume  https://review.openstack.org/54832416:01
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openstackgerritHelen Walsh proposed openstack/python-cinderclient master: Bulk Create - cinder client  https://review.openstack.org/54832716:02
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openstackgerritHelen Walsh proposed openstack/python-cinderclient master: Bulk Create - cinder client  https://review.openstack.org/54832716:06
openstackgerritMerged openstack/cinder stable/queens: Log config options with oslo.config  https://review.openstack.org/54722916:06
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openstackgerritHelen Walsh proposed openstack/cinder master: Bulk create - cinder api, scheduler and volume  https://review.openstack.org/54832416:08
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stvnoyesjgriffith, not sure what you mean by /dev/disk/by-path/iscsixxxxxx.16:08
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stvnoyesis it some iscsiadm command on the host? or something in the guest?16:09
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jgriffithstvnoyes: what I mean is it appears that you're looking at outputs on the Instane and having issues with the FS, I was wondering if you check the actual iSCSI connection on the compute node to see if it's still in tact or not16:15
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jgriffithstvnoyes: so on your nova compute node for each iscsi attachment, you get a handy /dev/disk/by-path/<cinder-uuid>.iqn.xxxx   (don't quote me on the exact fields there)16:16
stvnoyesok I'll check it16:16
jgriffithstvnoyes: that's the indication of whether the initiator still has a connection or not, and isolates whether the problem is nuking connections or something else16:17
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stvnoyeslike this (currently connected):16:28
stvnoyes$  sudo iscsiadm -m session -o show16:28
stvnoyestcp: [64] 192.168.1.105:3260,1 iqn.2010-10.org.openstack:volume-2cf26a15-8937-4654-ba81-70cbcb97a238 (non-flash)16:28
stvnoyesjgriffith: "like this" should have been a question.... ^16:30
stvnoyesthis entry does disappear on the first detach16:30
openstackgerritMerged openstack/cinder master: Fix typo in test_qnap  https://review.openstack.org/53697316:35
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jgriffithstvnoyes: ok, thanks for checking that; I'll have a look at it when I get a few minutes16:53
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vivsoni__Hi Team, Jgriffith: for testing 'force detach volume' feature16:55
vivsoni__volume should be in which state ?16:56
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vivsoni__As per my understanding it should be 'detaching/attaching'16:56
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vivsoni__jgriffith: please correct me if my understanding is wrong16:56
jgriffithvivsoni__: The point of 'force detach' is it shouldn't matter what state it's in, we force trying to detach it16:58
jgriffithvivsoni__: I would expect detaching/attaching and error-xxxxx states to work16:58
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jgriffithvivsoni__: in addition, personally I'm of the opinion that if you issue a force detach it should go through the process no matter what the state is16:59
vivsoni__jgriffith: ok.. also for do we have '--force' flag16:59
jgriffitheven if it's `avaialable` to provide a form of cleanup in case of errors/problems or mismatched states16:59
vivsoni__jgriffith: ok16:59
jgriffithvivsoni__: I thought somebody was working on getting rid of that independent call and adding a force flag to detach, but I'm not sure17:00
jgriffithI haven't been around much lately so I'm not the best source of updates as of late17:00
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vivsoni__jgriffith: ok... are u aware of cli command to trigger force detach ?17:03
jgriffithvivsoni__: I'm beginning to think I may be unclear on what you're intent is here...17:03
jgriffithvivsoni__: are you working on new features/development in Cinder?17:03
jgriffithvivsoni__: or are you just asking for support/help regarding force-detach?17:03
vivsoni__jgriffith: yes actually i need to implement force detach in our driver17:04
jgriffithvivsoni__: your driver shouldn't need much of anything I don't think...17:05
jgriffithvivsoni__: the api and manager layers filter things out for the detach calls based on volume status17:05
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jgriffithvivsoni__: and allow things to pass through if the force flag is set on terminate-connection17:06
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vivsoni__jgriffith: one of the tempest tes case is failing17:07
vivsoni__http://54.201.44.218/45/539145/2/check/3par-iscsi-driver-master-client-pip-ssa02-dsvm/e43ca1d/logs/testr_results.html.gz17:07
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vivsoni__jgriffith: basically connector is empty17:08
vivsoni__and as per Sean, driver need to implement/handle that case17:08
vivsoni__so i started implementation of the same17:08
jgriffithvivsoni__: http://paste.openstack.org/show/686704/17:10
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jgriffithvivsoni__: http://paste.openstack.org/show/686706/17:11
stvnoyesjgriffith/ildikov - here's the tempest test for this issue - https://review.openstack.org/#/c/548356 . The new test is test_multiattach_detach17:12
vivsoni__jgriffith: yes ... it failed beacuse it tries to access 'connector' attribute which is empty17:12
jgriffithvivsoni__: dude, you need to filter out whatever's going on with all those "NotImplementedError" messages in the logs17:13
jgriffithvery distracting17:13
jgriffithand the 975 lines of TRACE messages17:14
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jgriffithvivsoni__: http://paste.openstack.org/show/686708/17:15
jgriffith^^ so fix that17:15
vivsoni__jgriffith: yes i will fix17:16
jgriffithvivsoni__: that's your problem BTW17:16
jgriffithso the force is being called and there's no connector available; you're not handling that case there and tring to access the host field in a none object17:17
vivsoni__jgriffith: exactly17:17
vivsoni__thats what i am trying to handle17:17
spotzjungleboyj: I know you're out having fun but wasn't sure how cinder does backports. We need to backport https://review.openstack.org/#/c/546761/ to stable/pike17:18
vivsoni__so i have done thee implementation... just to test that... i need you help in cli command to initiate that 'force detach'17:18
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jgriffithvivsoni__: just run the tempest test17:20
vivsoni__jgriffith: ok17:21
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spotzjgriffith: can you answer a quick cinder question before I bug this?17:39
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stvnoyesjgriffith/ildikov: it seems like the problem is on the nova side.17:54
stvnoyesblock_device.driver_detach > libvirt.detach_volume > libvirt._disconnect_volume > os_brick.vol_driver.disconnect_volume which pulls the rug out.18:00
stvnoyesI have os-brick==2.3.018:00
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jgriffithummm... wtf:18:16
jgriffithvolume version 3.50 is not in supported versions: 1, 2, 318:16
jgriffithInvalid volume client version '3.50'. must be one of: 1, 2, 318:16
jgriffithbut it's in my client18:16
jgriffithand of course in my api version18:17
jgriffithf'ing mv's18:17
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SwansonLOL.19:17
SwansonSooooooo... "openstack consistency group show blah" should show the volumes in the group or no?19:21
Swansonxyang, ^^^19:22
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xyangSwanson: I think that info is added in group show, not CG show.  I'll need to double check to make sure19:31
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xyangSwanson: that is in group show micro version 3.25 and above19:35
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ildikovjgriffith: I remember that error message from a half year ago or more when we were playing with the API version check methods...19:38
ildikovstvnoyes: hmm, brick is not supposed to do that... :/19:40
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Swansonxyang, Should I have to do anything to get that? I'm running latest everything, I think. MV should be well beyond that.19:42
xyangSwanson: you need to set microversion19:43
Swansonxyang, Ah. Horizon doesn't give any indication that any volumes are in a group.19:50
Swansonmv again?19:51
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xyangSwanson: I don't know if Horizon supports generic volume group yet.  e0ne?20:10
e0nexyang, Swanson: hi. not yet, we've got a patch with implementation under review20:11
Swansonxyang, e0ne Soooo.... This doesn't work? I created a consistency group in horizon. I added volumes. It sorta worked it that the add volumes thing thinks they've been added but nothing else does.20:14
e0neSwanson, xyang: it would be great if you can share any logs and file a bug20:16
e0neSwanson, xyang: here is a patch to introduce generic volume groups feature20:17
Swansone0ne, xyang, I'll get a cleaner set of logs. (Which ones would be nice?) and put up a bug.20:18
e0neSwanson: there could be something in horizon or apache logs20:19
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Swansonaight.20:28
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jgriffithildikov: stvnoyes doesn't matter; I can't work the magic to get the mv's all aligned with the sun and moon to actually do anything and I've lost interest20:54
jgriffithscore one for usability20:54
ildikovjgriffith: the Cinder or the Nova one or neither?20:55
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jgriffithNova currently raises the "Voluem xxxx has 'multiattach' set, which is not supported for this instance"20:56
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jgriffithWhich I'm extremely annoyed by becuase it should be irreleveant anyway until a second attach request is made20:56
jgriffithsorry... just grumpy20:56
jgriffithso I've set the multiattach flags in my local.conf, and I've exported OS_COMPUTE_API_VERSION=2.6020:57
jgriffithso.. umm.. yeah; I don't know.  I remember I had problems before and got it working but IIRC I just modified the code to ignore the check20:57
ildikovjgriffith: what's the libvirt/qemu version?20:57
ildikovjgriffith: it works only if it's libvirt >=3.10 OR qemu <2.1020:58
jgriffithCompiled against library: libvirt 3.6.020:58
jgriffithUsing library: libvirt 3.6.020:58
jgriffithUsing API: QEMU 3.6.020:58
jgriffithRunning hypervisor: QEMU 2.10.120:58
jgriffithildikov: I thought devstack would fix that up for me20:59
ildikovjgriffith: there was a regression in the meantime on the hypervisor layer...20:59
jgriffithOhhhhh20:59
jgriffithI know what happened I bet...20:59
jgriffithI think that libvirt/qemu was already on this system so the additions didn't do me any good20:59
ildikovjgriffith: only if you're not running uca I think20:59
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jgriffithildikov: correct, and I have that set20:59
ildikovYeah, that sounds reasonable21:00
ildikovI mean having the wrong versions already installed21:00
jgriffithmaybe I'll look to see if I can add a more detailed message to this; or like I said propose we don't care until a second attachment :)21:00
jgriffithalright, guess I have to withdraw my complaints21:00
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jgriffithwell.. kinda21:00
ildikovThe caching needs to be turned off from attachment one so we need to care21:02
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jgriffithildikov: right, but you *could* just go ahead and ignore it if it's not going to allow multiattach on the second and third etc etc21:03
jgriffithknow what I'm saying?21:03
jgriffithnever mind, no sense in revisting that discussion/thread again.  I'm wrong obviously :)21:04
ildikovYeah it's a can of worms at this point21:04
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jgriffithildikov: I'm just saying that if we're only going to allow '1' attachment then it's irrelevant, at least for the first one.. but anyway; doesn't matter21:05
jgriffithlet me start over from the top with a clean install21:05
ildikovAnd I know what you're saying, it's not wrong :)21:06
ildikovjgriffith: sounds good, I hope :)21:06
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openstackgerritHelen Walsh proposed openstack/cinder master: VMAX Driver - Bulk create support  https://review.openstack.org/54841321:57
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jgriffithstvnoyes: oh... hmm; it seems that neither Nova, nor Brick make any consideration for removing the connections in the multiattach case22:34
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jgriffithie the multiattach to a single compute node, that's unfortunate22:35
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jgriffithsigh... (Pdb) p objects.BlockDeviceMapping.get_by_volume(nova_context.get_admin_context(), connection_info['volume_id'])23:52
jgriffith*** VolumeBDMIsMultiAttach_Remote: VolumeBDMIsMultiAttach_Remote(u'Block Device Mapping 0d8e963e-ea9f-45b2-98d4-83d1ddcc7f21 is a multi-attach volume and is not valid for this operation.',)23:52
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