Tuesday, 2015-06-16

« Monday, 2015-06-15 Index Wednesday, 2015-06-17 »
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openstackgerritxing-yang proposed openstack/manila: Support for oversubscription in thin provisioning  https://review.openstack.org/19204403:29
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openstackgerritMerged openstack/manila: Replace it.next() with next(it) for py3 compat  https://review.openstack.org/19155705:33
openstackgerritMerged openstack/manila: Bump supported tempest version  https://review.openstack.org/19173105:35
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openstackgerritOpenStack Proposal Bot proposed openstack/manila: Updated from global requirements  https://review.openstack.org/19162206:37
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openstackgerritzhongjun proposed openstack/manila: Parameter can not be test in Huawei driver  https://review.openstack.org/19208707:18
openstackgerritzhongjun proposed openstack/manila: Parameter can not be test in Huawei driver  https://review.openstack.org/19209307:25
openstackgerritzhongjun proposed openstack/manila: Parameter can not be test in Huawei driver  https://review.openstack.org/19208707:29
openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755007:39
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openstackgerritMerged openstack/manila: Merge tag '2015.1.0'  https://review.openstack.org/17930208:28
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openstackgerritPeter Wang proposed openstack/manila: Fix incompatiblity issue in VNX manila driver  https://review.openstack.org/19212209:54
openstackgerritPeter Wang proposed openstack/manila: Fix incompatiblity issue in VNX manila driver  https://review.openstack.org/19212209:58
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openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755010:23
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openstackgerritzhongjun proposed openstack/manila: Huawei manila driver support Read-Only share  https://review.openstack.org/18839011:12
openstackgerritzhongjun proposed openstack/manila: Huawei driver support storage pools  https://review.openstack.org/18833211:15
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u_glidevponomaryov, markstur, toabctl: ping https://review.openstack.org/#/c/190969/12:24
toabctlu_glide: you are using retrying now. cool :)12:24
openstackgerritzhongjun proposed openstack/manila: Huawei driver support storage pools  https://review.openstack.org/18833212:26
toabctlu_glide: looks good but still a question. see comments12:28
openstackgerritzhongjun proposed openstack/manila: Huawei manila driver support Read-Only share  https://review.openstack.org/18839012:28
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openstackgerritIgor Malinovskiy proposed openstack/manila: Add retry on volume attach error in Generic driver  https://review.openstack.org/19096912:41
u_glidetoabctl, vponomaryov: done12:42
openstackgerritRodrigo Barbieri proposed openstack/manila: [WIP] Add Share Migration support  https://review.openstack.org/17979012:44
openstackgerritRodrigo Barbieri proposed openstack/manila: [WIP] Share Migration support in generic driver  https://review.openstack.org/17979112:45
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openstackgerritOpenStack Proposal Bot proposed openstack/manila: Updated from global requirements  https://review.openstack.org/19162213:18
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openstackgerritThomas Bechtold proposed openstack/manila-ui: Use UPDATE_HORIZON_CONFIG for manila_ui.overrides  https://review.openstack.org/19221414:12
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openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755014:23
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openstackgerritValeriy Ponomaryov proposed openstack/manila: Reduce amount of tempest threads for no-share-servers jobs  https://review.openstack.org/19223014:49
openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755014:51
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openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755014:55
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openstackgerritMerged openstack/manila: Add retry on volume attach error in Generic driver  https://review.openstack.org/19096915:00
openstackgerritIgor Malinovskiy proposed openstack/manila: Use new manila-service-image with public-key auth  https://review.openstack.org/18755015:01
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u_glidevponomaryov, markstur, toabctl, cknight, xyang_: ping https://review.openstack.org/#/c/177834/15:03
cknightu_glide: I'll try to look at this one today.15:04
xyang_u_glide: I'll take a look15:06
u_glidecknight, xyang_: thanks!15:06
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vponomaryovmkoderer: you may be interested in https://review.openstack.org/#/c/187550/15:13
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ganso_vponomaryov: hi, to re-run jenkins on a patch I submitted I just have to post a comment "recheck"?15:44
vponomaryovganso_: one of two: "recheck" or "reverify"15:45
ganso_vponomaryov: thanks!15:45
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toabctlu_glide: about lp#1463718 . what do you think about backporting it to stable/kilo?15:50
u_glidetoabctl: no need to backport this to stable/kilo because only "share extend" operation is affected by this Cinder concurrency bug15:52
openstackgerritValeriy Ponomaryov proposed openstack/manila: Reduce amount of tempest threads for no-share-servers jobs  https://review.openstack.org/19223015:56
ganso_bswartz: ping15:58
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openstackgerritOpenStack Proposal Bot proposed openstack/manila: Updated from global requirements  https://review.openstack.org/19162216:24
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ganso_vponomaryov: Jenkins's neutron-multibackend test seems to be a little unstable16:57
ganso_vponomaryov: after a recheck my patch passed16:57
ganso_vponomaryov: https://review.openstack.org/#/c/179791/16:57
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vponomaryovganso_: bugfix has already been merged - https://review.openstack.org/#/c/190969/16:58
vponomaryovganso_: and it was not related exactly to multibackend16:59
vponomaryovganso_: it was related for all jobs where "extend" operation was running16:59
ganso_vponomaryov: oh, it makes sense now16:59
ganso_vponomaryov: thanks!16:59
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bswartzganso_: pong17:03
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ganso_bswartz: hi17:04
ganso_bswartz: I will be out on vacation from June 22th to July 1st17:04
ganso_bswartz: I will work my best to get Share Migration out of WIP status17:05
bswartzcool17:05
ganso_bswartz: for this Friday17:05
bswartzganso_: I have some ideas17:05
bswartzfor "share instance"17:05
bswartz"share instances" rather17:05
ganso_bswartz: humm what is that related to? the ID discussion?17:05
bswartzyes17:05
ganso_bswartz: great :)17:05
bswartzthe ability to have 2 instances of a share represented in the database with a common user-facing ID17:06
ganso_bswartz: as you have probably noticed, nobody replied to that mail thread, neither the one about network-path17:06
bswartzthis would allow implementation of migration with no driver-side changes at all17:06
bswartzwell I was only really able to think about it starting yesterday17:07
bswartzI'm still not settled on my thinking, but I have a few concrete ideas for how it can work17:07
ganso_bswartz: looks great. I think this can be coded in parallel, since the share migration prototype can be run on its on, and then be adjusted with another patch later. But still, I am sure you would not like to merge it before share-instances.17:07
ganso_bswartz: but in order for it to not require any driver-side changes at all, the network-path approach needs to be the "data copy service VM"17:08
ganso_bswartz: unless we figure something else out17:09
bswartzoh yeah17:09
bswartzthat's another area that requires more thought17:09
ganso_bswartz: it would be great if somebody replied to the mail thread17:09
ganso_bswartz: I think it is a bit risky to assume every driver vendor can do it17:10
bswartzit might just be me17:10
bswartzI'll talk to cknight about that topic too17:10
bswartzand we can keep bringing it up at weekly meetings17:10
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ganso_bswartz: I am concerned about Share Migration being dragged to later milestones17:11
ganso_bswartz: I am sure it has problems of its own, not only the dependencies17:11
bswartzit's better for it to be late than for it to be done wrong or sloppy17:11
bswartzI agree that earlier would be better if possible17:12
ganso_bswartz: That's why I am rushing to get it out of WIP this friday to invite more reviewers17:12
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openstackgerritOpenStack Proposal Bot proposed openstack/manila: Updated from global requirements  https://review.openstack.org/19162217:20
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openstackgerritMerged openstack/manila: Updated from global requirements  https://review.openstack.org/19162219:00
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openstackgerritOpenStack Proposal Bot proposed openstack/manila: Updated from global requirements  https://review.openstack.org/19237719:17
openstackgerritOpenStack Proposal Bot proposed openstack/python-manilaclient: Updated from global requirements  https://review.openstack.org/19238719:23
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openstackgerritxing-yang proposed openstack/manila: Support for oversubscription in thin provisioning  https://review.openstack.org/19204419:49
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openstackgerritDoug Hellmann proposed openstack/manila: Update version for Liberty  https://review.openstack.org/19241519:51
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openstackgerritRodrigo Barbieri proposed openstack/manila: [WIP] Share Migration support in generic driver  https://review.openstack.org/17979120:08
openstackgerritRodrigo Barbieri proposed openstack/manila: [WIP] Add Share Migration support  https://review.openstack.org/17979020:08
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ganso_bswartz: I just stumbled across a problem using Approach 1 (Private Driver Storage)20:25
bswartzwhat is that20:26
ganso_bswartz: vponomaryov already preditected this problem20:26
ganso_bswartz: when the new share is created in dest backend, the backend creates the share and uses the temporary share_id as index20:26
bswartzyes20:26
ganso_bswartz: the temporary share_id is gone once migration is completed20:27
bswartzI might not understand precisely what your proposal (1) means, but here is how I understood it20:27
bswartzWhen share A is migrated, we create a temporary share B on the new backend20:27
ganso_bswartz: so, later it has no ID to retrieve the volume ID, it will try to use the original ID, but there is no entry in its private share storage that maps to that20:27
bswartzthe data copy service moves the data from A to B20:28
bswartzthen share A is deleted20:28
bswartzthe last step is that the new backends is forced to change the ID of B to A20:28
bswartzbackends may either implement the ID change by manipulating the actual share on the backend, or by using private share data to remember the new mapping20:29
ganso_yes... there are several ways to implement that "last step"20:29
bswartzthat's how I understood proposal 120:29
ganso_yes20:29
ganso_the problem is with the way it is implemented currently20:29
bswartzit's nice because it keeps things clean, but it forces every existing share driver to implement the ID-change operation, which is a large ask to do during liberty20:29
ganso_bswartz: yes, I was trying to do that ID change seamlessly in the manager20:30
ganso_bswartz: but that would involve having to touch the driver's private driver storage20:30
ganso_bswartz: unless, as vponomaryov suggested, we call a separate create share method in Backend B, so it knows it is for a migration purpose20:31
bswartzganso_: the manager can not touch the driver's private storage -- that's the point of calling it private20:31
bswartzall drivers would need to implement a change_share_id() method20:31
ganso_bswartz: but that would force drivers to implement that other "create_share_from_migration" method... more effort from driver vendors20:31
bswartzyes20:32
ganso_bswartz: if drivers implement that "change_share_id" is ok20:32
bswartzthat's the main argument for going with the 2 ID strategy20:32
bswartzor the "share instance" strategy20:32
ganso_bswartz: yes, I am starting to like that more now20:32
bswartzI can outline what I'm thinking in more detail20:33
bswartzbut I'm still undecided on whether it make the replication feature better or worse20:34
ganso_bswartz: the prototype is depends on that change to advance, I thought the private driver storage alone would be enough, but it is not20:34
bswartzimplementing share instances will be a huge change if we go down that path20:34
bswartzit won't happen quickly20:35
ganso_bswartz: I can help with that20:35
bswartzthe benefits are large enough that it could be worth it though20:35
ganso_bswartz: could be large enough, once we sort out the benefits or drawbacks for replication, right?20:36
bswartzyes20:36
marksturtoabctl, ping20:36
marksturtoabctl, The devstack plugin for manila-ui https://review.openstack.org/#/c/184778/8/devstack/plugin.sh20:38
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marksturI didn't kill the share-instances conversation.  Did I?20:39
ganso_bswartz: I am thinking about implementing Approach 2 (new DB column) just to fix my prototype and have the generic driver working20:40
ganso_bswartz: it may end up not being a lot of work20:40
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bswartzganso_: that's what the cinder guys thought21:41
bswartzit caused a lot of bugs21:41
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openstackgerritMerged openstack/puppet-manila: Introduce public_url, internal_url and admin_url  https://review.openstack.org/19080223:59
« Monday, 2015-06-15 Index Wednesday, 2015-06-17 »

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