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| openstackgerrit | melanie witt proposed openstack/nova-specs master: Propose counting quota usage from placement and API database https://review.openstack.org/509042 | 02:26 |
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| openstackgerrit | Merged openstack/placement master: Don't create placement.conf in perfload.yaml https://review.openstack.org/622389 | 06:37 |
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| belmoreira | I'm writing a blog post about the increase of the number of placement requests that we hit when upgraded to Rocky. Let me know if it's faire for you or if you have any comment. It's not very technical. The audience are Ops. https://docs.google.com/document/d/1W1x1uDOr71fabArbKnlsqdyRJ05LvwjAcE0rZZ5NC4M/edit?usp=sharing | 13:54 |
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| edleafe | belmoreira: I think that's a fair and accurate representation of what happened. Thanks for writing that up. | 14:00 |
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| jaypipes | belmoreira: for your info... I'm just finishing up a patch series that changes the performance of the scheduler for your use case (where CONF.filter_scheduler.track_instance_changes=False) from O(N) to O(1). | 16:29 |
| jaypipes | belmoreira: I'm hoping you or tssurya can test it out in a cell maybe over the next couple weeks. | 16:29 |
| * cdent swoons at o notation | 16:31 | |
| tssurya | jaypipes: thanks! you mean track_instance_changes=True ? | 16:31 |
| tssurya | or are you talking about all the host_state computation stuff for track_instance_changes=False ? | 16:32 |
| jaypipes | tssurya: you guys have track_instance_changes set to False, right? | 16:35 |
| tssurya | jaypipes: yes and we don't wat to make it truw in fear or busting the MQ | 16:35 |
| jaypipes | tssurya: and yes, I'm talking about the host state computation stuff :) | 16:35 |
| tssurya | want* | 16:35 |
| tssurya | great! | 16:35 |
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| tssurya | leakypipes: we aim to work on the testing next week, meanwhile I had a doubt here: https://review.openstack.org/#/c/615677/14/nova/compute/resource_tracker.py@822 and probably because I am stupidly missing something, | 16:42 |
| tssurya | since eric is out, whenever you have the time could you leave a comment ? | 16:42 |
| leakypipes | tssurya: done | 16:47 |
| leakypipes | tssurya: you're not missing anything at all. that's exactly the problem I brought up in an earlier rev. | 16:47 |
| tssurya | leakypipes: thanks, :) | 16:47 |
| cdent | leakypipes: while your about, can you remind if/why if we're doing https://github.com/openstack/placement/blob/master/placement/resource_class_cache.py#L32 we need the context manager at line 25 above? | 16:50 |
| leakypipes | cdent: well, without the context manager we'll end up with an uninit'd session and the query won't work. But, that said, I'm pretty sure that line could be simplified to just use ctx.session.execute() instead of doing the whole as conn: conn.execute() foo | 16:53 |
| cdent | i was wondering if the connection.using(ctx) implied init'ing the session | 16:54 |
| cdent | because of the traversal down the name | 16:55 |
| cdent | i guess I'll poke at it | 16:55 |
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| leakypipes | cdent: not sure... I think when I wrote that I didn't quite understand how to use ctx.session properly. | 17:01 |
| cdent | leakypipes: I'm gonna try to break it and see | 17:02 |
| leakypipes | cdent: go for it :) | 17:03 |
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| melwitt | leakypipes: looking forward to seeing the perf improvement patches, well done | 17:19 |
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| cdent | leakypipes: so if I remove the decorator it all still works | 18:03 |
| cdent | so I reckon I'll change it to decorator + ctx.session.execute | 18:04 |
| leakypipes | cdent: ++ | 18:04 |
| cdent | which will give sean-k-mooney a sad: they'd like us to stop using the decorators entirely | 18:05 |
| cdent | but while we have the idiom, may as well | 18:05 |
| sean-k-mooney | well i dont mind the decorator it just cause issue if you replace or reconfigre the db | 18:06 |
| sean-k-mooney | unless you were talking about the run_once decorator | 18:06 |
| sean-k-mooney | i missed the start of the conversation | 18:06 |
| cdent | sean-k-mooney: we're talking about the context manager decorator. I think it's a problem source too | 18:07 |
| leakypipes | cdent: why stop using the decorators? :( | 18:07 |
| cdent | globals | 18:07 |
| leakypipes | ah. | 18:07 |
| cdent | it's either globals, dns, or permissions, every single time | 18:08 |
| sean-k-mooney | leakypipes: the decorator maintain a referce to the context manager from when the moduel is first imported | 18:08 |
| sean-k-mooney | if you repace the global object the deocrator still points to the old value | 18:08 |
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| openstackgerrit | Chris Dent proposed openstack/placement master: WIP: Use os-resource-classes in placement https://review.openstack.org/623556 | 18:49 |
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| openstackgerrit | Chris Dent proposed openstack/placement master: WIP: Use os-resource-classes in placement https://review.openstack.org/623556 | 18:52 |
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