Friday, 2018-02-02

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openstackgerritAbijitha Nadagouda proposed openstack/python-glanceclient master: Removes unicode 'u' response from "glance image-tag-update"  https://review.openstack.org/54025405:07
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openstackgerritOpenStack Proposal Bot proposed openstack/glance_store master: Imported Translations from Zanata  https://review.openstack.org/53816206:42
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openstackgerritBhagyashri Shewale proposed openstack/glance master: Modify glance manage db sync to use EMC  https://review.openstack.org/43393409:40
openstackgerritBhagyashri Shewale proposed openstack/glance master: Implementation of db check command  https://review.openstack.org/45583709:40
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bhagyashrisabhishekk: Hi Abhishek, just want to inform you  I have replied Prateek on comment give on --check patch https://review.openstack.org/#/c/455837/8 and address his second review comment which was simple nit, as --check patch is dependent on EMC patch https://review.openstack.org/#/c/433934/ so while pushing --check patch new patch set of EMC patch was pushed and +2 from you is removed so can you please restore your +2 on it because there10:16
bhagyashriswill be no harm, it's just rebased10:16
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kukaczhello, I'm about to switch glance backend from glusterfs to swift. is there any recommended procedure how handle the backend switch, possibly migrating the existing images?10:35
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bhagyashrisrosmaita: Hi, I would like to see your insights on https://review.openstack.org/#/c/455837/13:26
rosmaitabhagyashris will look as soon as i can13:30
bhagyashrisrosmaita: ok. thank you :)13:30
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kukaczanyone has any hints for the ^^ backend change? could I perhaps somehow use the multiple locations feature?13:36
rosmaitakukacz here's a suggestion, but keep in mind i have not actually done this in a real installation; you may want to ask on the operator's list13:38
rosmaita1 - you'll probably want to set up a special glance node that only admins have access to and enable show_multiple_locations on that one (but don't expose locations to end users)13:40
rosmaita2 - you can copy the data from glusterfs to swift ... you will probably want to just put a few images into swift the "regular" way so you can see how glance handles creating large objects in swift, so you can do it the same way13:42
kukaczrosmaita: great, thanks. I'm reading + waiting ...13:44
rosmaita3 - there are "location strategy modules" in glance, you pick one and that's how when there are multiple locations, glance decides which location to use.  You'll want to to pick one that will return the glusterfs location until you have everything migrated over to swift and tested13:44
rosmaitaabout item 3 -- you'll use one of these on your "regular" glance nodes that end users hit so that they keep getting the images out of glusterfs13:45
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rosmaitaand you can use a different module on your "special" admin-only glance node so that *you* can get stuff out of swift for testing13:46
openstackgerritMerged openstack/glance-specs master: Move implemented spec to 'implemented'  https://review.openstack.org/51636913:46
rosmaita4 - once you've got all the data transferred over and the swift locations set, and everythin13:46
rosmaitag13:47
rosmaita's been tested, you can change the strategy on your "regular" glance nodes to start serving from the swift locations13:47
rosmaita5 - then delete the glusterfs locations from your images13:47
rosmaita(i think that's roughly it)13:48
kukaczrosmaita: wonderful!13:48
rosmaitayou'll definitely need to go through it once or twice, i may have left something out13:48
rosmaitaone other thing ... about the location strategy modules13:48
kukaczthanks a lot, rosmaita, this sounds feasible13:48
rosmaitafei long wong has a patch up to customize the strategy modules13:49
rosmaitait did not merge13:49
rosmaitabut you might want to look at it13:49
rosmaitai believe one of the big australia clouds is actually using it13:49
rosmaitagive me a few min to find it13:49
rosmaitait's not a real recent patch, but i don't think that part of the code has changed much13:50
rosmaitabut looking at it will give you a better idea of what the location strategy modules are all about13:50
rosmaitaalso, this is an area where the docs might be kind of light, so please consider contributing back your findings13:51
kukaczok, sure, I'll try to handle that if we succeed13:51
kukaczyes, I wished to ask you about those cause I didn't find anything than labels of 2 location strategies in the docs13:52
rosmaitathere may be some explanation of how to use them in the sample config file13:53
rosmaitaactually, maybe not ... i remembered writing some docs, but looks like they were part of the patch that was never merged13:55
rosmaitakukacz https://review.openstack.org/#/c/336761/13:56
rosmaitathat isn't the code i was talking about, but it does have some discussion of using the strategy modules13:56
rosmaita(still looking for the other patch)13:56
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kukaczok, I'm just reading the comment in our glance-api.conf and it describes the store_type quite strategy reasonably - sounds like we could influence the preference of backends using store_type_preference parameter in the config file13:59
kukaczisn't that what I want?14:00
rosmaitakukacz possibly ... maybe i'm making this more complicated than it needs to be14:01
kukaczso on the "regular" glance node we'd use "old,new" backend order, while on the temporary migration node we'd use "new,old" so that we can test the new images. could that work?14:02
rosmaitakukacz yes, that sounds right14:03
rosmaitajust use the store_type location_strategy, and you should be ok14:04
kukaczthat was an excellent help rosmaita, thank you!14:05
rosmaitakukacz HTH, i will be interested in how this works out!  also, you may want to give a shout on the operators list in case someone has some tips for you14:06
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kukaczrosmaita: yes, I'll ask there too. have to prepare this carefully ...14:07
kukaczI'm glad we don't have to deal with some direct database changes or so14:07
rosmaitakukacz here is that other strategy module: https://review.openstack.org/#/c/268865/14:08
kukaczjust to ensure - should all these methods work with ocata release?14:08
kukacz... aha, thanks, I'll check that module14:09
rosmaitakukacz it's kind of complicated, but you may want to contact Jake Yip, his info is on the patch, i think he's had a lot of experience using the multiple locations14:10
rosmaitai think you are right about store_type and store_preference working for you14:10
rosmaitabut he may have some general observations that would be helpful14:10
rosmaitakukacz yes, to answer your question, this stuff was all in ocata, you should be OK14:11
kukaczgreat14:14
kukaczrosmaita, that's lot of useful tips and contacts. thank you!14:15
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openstackgerritBrian Rosmaita proposed openstack/glance master: Add fixture to limit unit test log output  https://review.openstack.org/52353015:18
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openstackgerritMerged openstack/python-glanceclient master: Revert "Remove team:diverse-affiliation from tags"  https://review.openstack.org/50729116:39
prometheanfirerosmaita: did the gating fix (func/unit split iirc) get backported to pike/ocata?16:42
rosmaitaprometheanfire no16:46
rosmaitabut both func and unit tests are failing16:47
rosmaitaworking on that now16:47
prometheanfirerosmaita: ok, because our cross gating is broken in those branches16:47
prometheanfirerosmaita: ah, thanks16:47
rosmaitao16:47
rosmaitai'm not sure what happened, there is a lot of stuff broken16:47
prometheanfireya, I blame ubuntu16:47
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rosmaitaprometheanfire don't blame ubuntu, it was y'all sneaking in that oslo serialization version bump after making the glance py27 tests non-voting19:25
smcginnisrosmaita: Not sure if you get these, but related to your patches, this is the last stable-main failure for glance stable branches: http://lists.openstack.org/pipermail/openstack-stable-maint/2018-February/007245.html19:25
prometheanfirerosmaita: oh? it passed the cross gating on our side (because of disabled tests?)19:26
rosmaitait must have snuck in while the test was non-voting19:26
prometheanfireya19:27
rosmaitait took like a week or so to get it reinstated, because the gates were so slow19:27
rosmaitathat's my theory, anywya19:27
prometheanfiregate's good now :D19:27
prometheanfirefor now at least19:27
rosmaitadidn't think to look for a requirements change on the stable branch ... who's idea was that?19:27
rosmaita(ignore me for the next 1/2 hour while i calm down)19:28
prometheanfirewhen did that happen?19:29
prometheanfirehttps://github.com/openstack/requirements/commits/stable/pike/upper-constraints.txt19:29
prometheanfirenothing in pike for the last two weeks19:29
prometheanfirealmost a month for ocata19:29
smcginnisprometheanfire: I didn't think the cross-glance test was skipped. That's different than openstack-tox-py27, right?19:29
rosmaitayeah, just looking, the oslo.serialization change was jan 0819:30
prometheanfireya19:30
rosmaitacrap, hope it's not my environment19:31
prometheanfirehttps://github.com/openstack/requirements/commit/d756be832c1cca02ecc69acba0ea44eeb8853252#diff-0bdd949ed8a7fdd4f95240bd951779c819:31
prometheanfirethat one?19:31
rosmaitayeah19:32
prometheanfirehttps://github.com/openstack/oslo.serialization/compare/2.20.1...2.20.219:33
rosmaitahmmm ... must be 20.3 that has the change to return Exceptons as strings19:34
rosmaitai would've sworn i recreated my test env19:35
rosmaitadammit19:35
rosmaitaok, so this wasted day is on me19:35
rosmaitaalso, looks like the WIP patch i put up passed py27 tests in the 'check' gate19:36
* prometheanfire shrugs we are in freeze now and there are not too many stable branches updates queued, no worries19:36
rosmaitawell, i'm bummed that i wasted a really snarky comment where i "fixed" the code19:37
rosmaita:)19:37
prometheanfire:P19:37
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