Wednesday, 2017-03-08

openstackgerritMerged openstack/puppet-manila master: Prepare Pike metadata  https://review.openstack.org/44282400:00
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openstackgerritMerged openstack/manila master: The python version is added Python 3 and 3.5 version was missing.  https://review.openstack.org/44233511:22
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tbarronbswartz: https://review.openstack.org/#/c/441678/ pays off tech debt from that last minute rever-to-snapshot fixing you did at ocata release time11:48
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openstackgerritJan Provaznik proposed openstack/manila master: User Messages  https://review.openstack.org/31354912:20
openstackgerritJan Provaznik proposed openstack/manila master: Extend usage of user messages  https://review.openstack.org/44310112:20
openstackgerritJan Provaznik proposed openstack/manila master: Provide filter name in user messages  https://review.openstack.org/44310212:20
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openstackgerritJan Provaznik proposed openstack/manila-specs master: Add spec for user messages  https://review.openstack.org/43427712:57
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openstackgerritAndrea Frittoli proposed openstack/manila master: Local copy of scenario test base class  https://review.openstack.org/44271913:17
kaisersHi! I'd like to activate the shrink/extend tests on Quobyte CI which requires a bugfix (https://review.openstack.org/#/c/437501/), i'd be happy to have reviews on this13:19
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openstackgerritTom Barron proposed openstack/manila master: Rename wrapped methods in share manager  https://review.openstack.org/44312813:38
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openstackgerritSilvan Kaiser proposed openstack/manila master: Send resize parameters in rpc as list in the Quobyte driver  https://review.openstack.org/43750113:53
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kaisersbswartz: I added the releasenote at https://review.openstack.org/#/c/437501/4 , thnx13:58
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openstackgerritTom Barron proposed openstack/manila master: Update share manager share server provisioning  https://review.openstack.org/44316415:09
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openstackgerritTom Barron proposed openstack/manila master: Update share server provisioning for share groups  https://review.openstack.org/44316415:12
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mnaserhi everyone, i'm trying to figure out the source of a bug, mitaka and upgraded to newton trying to get rid of it but its still there15:26
mnaserthis is a wip deployment but it looks like when a provision fails (generic driver), deleeting it gives this exception: ManilaException: Share server '5d311418-6297-4d91-add4-66e8f6254bfb' does not have backend details.15:27
mnaserthen the state of the share goes to error_deleting and it becomes indeletable (unless using force-delete).15:27
mnaseris there something i have misconfigured where "backend details" are not being added, or is the exception being raised at a point where it causes this problem15:27
mnaser(i am getting exception due to the neutron-openvswitch-agent not installed)15:27
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tbarronmnaser: seems like a bug where if the share server wasn't provisioned properly on the backend the delete path is failing to gracefully handle that situation.17:11
tbarronmnaser: may I ask your plans for use of generic driver with mitaka/newton?17:12
tbarronmnaser: is this a learning exercise, or are you thinking of actually using the generic driver in production?17:13
openstackgerritTom Barron proposed openstack/manila master: Fix python3 pep8 errors  https://review.openstack.org/44323917:15
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mnasertbarron sorry, i was afk, just got back in - looking at using it in prod, is there a reason why one wouldn't?17:25
mnaseri feel like the generic driver matches the whole idea behind how things are done in other systems (i.e. sahara, trove, etc)17:25
mnaseri am open to push nudged towards a better tested more production-grade selection of the drivers though!17:25
tbarronmnaser: solicit other opinions than mine, but I think it is mainly a reference implementation to date.17:28
mnasertbarron interesting to hear, what are the ones you've seen deployed most commonly in that case?17:28
mnaseri saw some stuff about containers which seemed interesting17:28
tbarronmnaser: container driver is an interesting experiment also :D17:30
mnaserin an ideal world17:30
mnaserid love to take advantage of our ceph deployment17:30
tbarrongeneric driver at least as implemented thus far uses cinder with lvm backend17:30
tbarroncontainer driver uses lvm17:31
mnaserwell in our case cinder is configured with ceph so its setting up drives on cinder which is on our ceph17:31
tbarronboth have storage local to the node, not scale-out cloud storage17:31
tbarronmnaser: got it17:31
mnaserso when manila creates a cinder volume, its a ceph rbd volume, but then we're introducing so much layers of complexity17:31
tbarronmnaser: so have you looked at all at the manila native cephfs driver?17:32
mnaserrados -> rbd -> cinder -> vm -> nfs .. i havent looked at the cephfs driver but this is a multitenant environment so a concern is how it handles access17:32
tbarronmnaser: right, that's the downside of the native cephfs driver (multitenancy)17:32
tbarronyour compute nodes have to have access to the storage (ceph public) network17:33
mnaserwhich brings us back to the generic seemingly the most "fits easily within existing environment" choice :(17:33
mnasercompute nodes accessing ceph is ok, but i guess you mean VMs which is not something that seems interesting17:33
tbarronmnaser: sounds like you are a good candidate for upcoming work on cephfs driver with nfs frontend17:33
tbarronmnaser: yeah s/compute instances(vms)/compute nodes/  I misspoke17:34
mnasertbarron: also from a user perspective, i think nfs exports are way better than ceph exports17:34
mnaserespecially because when you start having clients with all sorts of versions... it limits your ability to upgrade as people run older kernels17:34
tbarronmnaser: so I don't have a good answer for you today, but your use case validates work in progress ...17:35
tbarronmnaser: for today, I understand why you are doing generic/cinder/ceph driver, but its complexity, esp.17:36
mnasertbarron .. i agree, perhaps adopting heat might remove a lot of those complexities, i know it helped on sahara17:37
tbarronits complexity and arguable lack of robustness leads us to look at getting to a similar place in a different way.17:37
mnaserbecause by deploying stacks you dont have to worry about the robostness of deployment/etc17:38
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tbarronmnaser: interesting idea, though dependence of generic driver on all those other OpenStack compoenents has been problematic enough that folks may be reluctant to add one more.17:39
mnasertbarron that's true, it was something that bothered us a lot when we setup sahara because we didn't have heat at the time17:39
mnaserbuut i much rather have components working together rather than doing things on their own (and i think heat can be trusted in resource deployment by now, its proven itself for quite sometime)17:40
tbarronmnaser: ack, but my own energies are going to nfs frontend on cephfs w/o cinder provisioning in the middle.17:42
mnaserif only i had spare time id love to contribute something that uses heat as a deployment engine but unfortunately time constraints :(17:43
tbarronmnaser: if I had a doppelganger I could work on improving generic driver in parallel ...17:43
mnasertbarron: im looking for a way to get more time in a day!17:44
tbarronmnaser: :D17:44
mnasertbarron thanks for your thoughts and the chat!17:45
tbarronmnaser: well, thanks for indulging me.  If you learn of production deployments using generic driver I'd appreciate hearing about them. As I say, others here may know more on that front than I do.17:47
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openstackgerritMerged openstack/manila master: Fix python3 pep8 errors  https://review.openstack.org/44323920:24
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openstackgerritTom Barron proposed openstack/manila master: Change CG variables to SG variables  https://review.openstack.org/44332521:21
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