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openstackgerrit | Abijitha Nadagouda proposed openstack/python-glanceclient master: Removes unicode 'u' response from "glance image-tag-update" https://review.openstack.org/540254 | 05:07 |
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openstackgerrit | OpenStack Proposal Bot proposed openstack/glance_store master: Imported Translations from Zanata https://review.openstack.org/538162 | 06:42 |
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openstackgerrit | Bhagyashri Shewale proposed openstack/glance master: Modify glance manage db sync to use EMC https://review.openstack.org/433934 | 09:40 |
openstackgerrit | Bhagyashri Shewale proposed openstack/glance master: Implementation of db check command https://review.openstack.org/455837 | 09:40 |
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bhagyashris | abhishekk: 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 there | 10:16 |
bhagyashris | will be no harm, it's just rebased | 10:16 |
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kukacz | hello, 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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bhagyashris | rosmaita: Hi, I would like to see your insights on https://review.openstack.org/#/c/455837/ | 13:26 |
rosmaita | bhagyashris will look as soon as i can | 13:30 |
bhagyashris | rosmaita: ok. thank you :) | 13:30 |
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kukacz | anyone has any hints for the ^^ backend change? could I perhaps somehow use the multiple locations feature? | 13:36 |
rosmaita | kukacz 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 list | 13:38 |
rosmaita | 1 - 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 |
rosmaita | 2 - 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 way | 13:42 |
kukacz | rosmaita: great, thanks. I'm reading + waiting ... | 13:44 |
rosmaita | 3 - 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 tested | 13:44 |
rosmaita | about 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 glusterfs | 13:45 |
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rosmaita | and you can use a different module on your "special" admin-only glance node so that *you* can get stuff out of swift for testing | 13:46 |
openstackgerrit | Merged openstack/glance-specs master: Move implemented spec to 'implemented' https://review.openstack.org/516369 | 13:46 |
rosmaita | 4 - once you've got all the data transferred over and the swift locations set, and everythin | 13:46 |
rosmaita | g | 13:47 |
rosmaita | 's been tested, you can change the strategy on your "regular" glance nodes to start serving from the swift locations | 13:47 |
rosmaita | 5 - then delete the glusterfs locations from your images | 13:47 |
rosmaita | (i think that's roughly it) | 13:48 |
kukacz | rosmaita: wonderful! | 13:48 |
rosmaita | you'll definitely need to go through it once or twice, i may have left something out | 13:48 |
rosmaita | one other thing ... about the location strategy modules | 13:48 |
kukacz | thanks a lot, rosmaita, this sounds feasible | 13:48 |
rosmaita | fei long wong has a patch up to customize the strategy modules | 13:49 |
rosmaita | it did not merge | 13:49 |
rosmaita | but you might want to look at it | 13:49 |
rosmaita | i believe one of the big australia clouds is actually using it | 13:49 |
rosmaita | give me a few min to find it | 13:49 |
rosmaita | it's not a real recent patch, but i don't think that part of the code has changed much | 13:50 |
rosmaita | but looking at it will give you a better idea of what the location strategy modules are all about | 13:50 |
rosmaita | also, this is an area where the docs might be kind of light, so please consider contributing back your findings | 13:51 |
kukacz | ok, sure, I'll try to handle that if we succeed | 13:51 |
kukacz | yes, I wished to ask you about those cause I didn't find anything than labels of 2 location strategies in the docs | 13:52 |
rosmaita | there may be some explanation of how to use them in the sample config file | 13:53 |
rosmaita | actually, maybe not ... i remembered writing some docs, but looks like they were part of the patch that was never merged | 13:55 |
rosmaita | kukacz https://review.openstack.org/#/c/336761/ | 13:56 |
rosmaita | that isn't the code i was talking about, but it does have some discussion of using the strategy modules | 13:56 |
rosmaita | (still looking for the other patch) | 13:56 |
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kukacz | ok, 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 file | 13:59 |
kukacz | isn't that what I want? | 14:00 |
rosmaita | kukacz possibly ... maybe i'm making this more complicated than it needs to be | 14:01 |
kukacz | so 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 |
rosmaita | kukacz yes, that sounds right | 14:03 |
rosmaita | just use the store_type location_strategy, and you should be ok | 14:04 |
kukacz | that was an excellent help rosmaita, thank you! | 14:05 |
rosmaita | kukacz 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 you | 14:06 |
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kukacz | rosmaita: yes, I'll ask there too. have to prepare this carefully ... | 14:07 |
kukacz | I'm glad we don't have to deal with some direct database changes or so | 14:07 |
rosmaita | kukacz here is that other strategy module: https://review.openstack.org/#/c/268865/ | 14:08 |
kukacz | just to ensure - should all these methods work with ocata release? | 14:08 |
kukacz | ... aha, thanks, I'll check that module | 14:09 |
rosmaita | kukacz 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 locations | 14:10 |
rosmaita | i think you are right about store_type and store_preference working for you | 14:10 |
rosmaita | but he may have some general observations that would be helpful | 14:10 |
rosmaita | kukacz yes, to answer your question, this stuff was all in ocata, you should be OK | 14:11 |
kukacz | great | 14:14 |
kukacz | rosmaita, that's lot of useful tips and contacts. thank you! | 14:15 |
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openstackgerrit | Brian Rosmaita proposed openstack/glance master: Add fixture to limit unit test log output https://review.openstack.org/523530 | 15:18 |
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openstackgerrit | Merged openstack/python-glanceclient master: Revert "Remove team:diverse-affiliation from tags" https://review.openstack.org/507291 | 16:39 |
prometheanfire | rosmaita: did the gating fix (func/unit split iirc) get backported to pike/ocata? | 16:42 |
rosmaita | prometheanfire no | 16:46 |
rosmaita | but both func and unit tests are failing | 16:47 |
rosmaita | working on that now | 16:47 |
prometheanfire | rosmaita: ok, because our cross gating is broken in those branches | 16:47 |
prometheanfire | rosmaita: ah, thanks | 16:47 |
rosmaita | o | 16:47 |
rosmaita | i'm not sure what happened, there is a lot of stuff broken | 16:47 |
prometheanfire | ya, I blame ubuntu | 16:47 |
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rosmaita | prometheanfire don't blame ubuntu, it was y'all sneaking in that oslo serialization version bump after making the glance py27 tests non-voting | 19:25 |
smcginnis | rosmaita: 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.html | 19:25 |
prometheanfire | rosmaita: oh? it passed the cross gating on our side (because of disabled tests?) | 19:26 |
rosmaita | it must have snuck in while the test was non-voting | 19:26 |
prometheanfire | ya | 19:27 |
rosmaita | it took like a week or so to get it reinstated, because the gates were so slow | 19:27 |
rosmaita | that's my theory, anywya | 19:27 |
prometheanfire | gate's good now :D | 19:27 |
prometheanfire | for now at least | 19:27 |
rosmaita | didn'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 |
prometheanfire | when did that happen? | 19:29 |
prometheanfire | https://github.com/openstack/requirements/commits/stable/pike/upper-constraints.txt | 19:29 |
prometheanfire | nothing in pike for the last two weeks | 19:29 |
prometheanfire | almost a month for ocata | 19:29 |
smcginnis | prometheanfire: I didn't think the cross-glance test was skipped. That's different than openstack-tox-py27, right? | 19:29 |
rosmaita | yeah, just looking, the oslo.serialization change was jan 08 | 19:30 |
prometheanfire | ya | 19:30 |
rosmaita | crap, hope it's not my environment | 19:31 |
prometheanfire | https://github.com/openstack/requirements/commit/d756be832c1cca02ecc69acba0ea44eeb8853252#diff-0bdd949ed8a7fdd4f95240bd951779c8 | 19:31 |
prometheanfire | that one? | 19:31 |
rosmaita | yeah | 19:32 |
prometheanfire | https://github.com/openstack/oslo.serialization/compare/2.20.1...2.20.2 | 19:33 |
rosmaita | hmmm ... must be 20.3 that has the change to return Exceptons as strings | 19:34 |
rosmaita | i would've sworn i recreated my test env | 19:35 |
rosmaita | dammit | 19:35 |
rosmaita | ok, so this wasted day is on me | 19:35 |
rosmaita | also, looks like the WIP patch i put up passed py27 tests in the 'check' gate | 19:36 |
* prometheanfire shrugs we are in freeze now and there are not too many stable branches updates queued, no worries | 19:36 | |
rosmaita | well, i'm bummed that i wasted a really snarky comment where i "fixed" the code | 19:37 |
rosmaita | :) | 19:37 |
prometheanfire | :P | 19:37 |
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