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| timburke | notmyname: .... but why? what's the use-case we're looking to solve? | 00:30 |
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| mattoliverau | renaming with out needed to change the hash. interesting. Searching for the correct container I'd expect to mean more lookups somehow though, in that case. Given a name how'd you map it to the uuid. | 00:53 |
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| notmyname | timburke: same use case as "I want to rename a folder on my laptop" | 01:09 |
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| openstackgerrit | Nguyen Hai proposed openstack/swift master: add lower-constraints job https://review.openstack.org/556255 | 01:49 |
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| timburke | notmyname: idk -- the path is pretty vital to placement (atm, anyway). besides, you still want old URLs to Just Work (see also: https://www.w3.org/Provider/Style/URI.html). maybe something like https://review.openstack.org/#/c/62494/ would work though? | 02:35 |
| patchbot | patch 62494 - swift - Add containeralias middleware (ABANDONED) | 02:35 |
| timburke | but the big, useful thing in changing container names (imo) is being able to change the storage policy -- and that's going to require a lot of data movement no matter what | 02:37 |
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| openstackgerrit | Nguyen Hai proposed openstack/swift master: add lower-constraints job https://review.openstack.org/556255 | 04:50 |
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| openstackgerrit | Merged openstack/swift master: Lower the required version of ipaddress https://review.openstack.org/585568 | 06:31 |
| openstackgerrit | Kota Tsuyuzaki proposed openstack/swift master: make probe tests voting in the gate https://review.openstack.org/585900 | 06:35 |
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| openstackgerrit | Alexander Bolshakov proposed openstack/python-swiftclient master: Fix update when PUT on containers not allowed https://review.openstack.org/585325 | 11:25 |
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| notmyname | good morning | 16:50 |
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| clayg | I don't understand what patch 556255 is or why we can't merge it | 17:50 |
| patchbot | https://review.openstack.org/#/c/556255/ - swift - add lower-constraints job | 17:50 |
| clayg | it doesn't touch any of our code? I feel like it must be useful to someone - so why not? | 17:50 |
| notmyname | clayg: honestly, I thought we already has something like that somewhere. but AIUI, the idea is that this will test what we say our minimum requirements are. eg we way use requests v2->v62, the normal jobs install the latest satisfiable one. this one tests with v2 (the earliest satisfiable one) | 17:54 |
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| clayg | so... let's merge it? | 18:01 |
| bharath12345 | I have a question(not related to what clayg wants to merge! sorry!). What would go wrong if there was a cache in the proxy server. i.e we could cache small objects and return the objects from the cache rather than going to the cluster. The cache could follow an LRU protocol if it gets filled up. | 18:09 |
| notmyname | bharath12345: as long as you have some sort of invalidation mechanism on writes, should be fine. this is exactly what is done when people put varnish (or a cdn) in front of swift | 18:10 |
| notmyname | if it's on the same physical box, you've just cond hardware contention to deal with. stuff that's easily monitorable with normal op tools | 18:11 |
| notmyname | clayg: yeah, I think we should | 18:12 |
| notmyname | looks like it passes the test it implements. go for it | 18:12 |
| bharath12345 | notmyname, you are talking about people supporting caching for their applications right? I was thinking about cache for a swift cluster? Is there any reason why you guys didnt put any sort of cache in the proxy when you set up swift? | 18:12 |
| notmyname | bharath12345: no, I'm talking about a server-side cache. it's not included in swift because swift exposes an http api and there are lots of (really great) existing tools that cache http | 18:13 |
| notmyname | ah, maybe you're talking about caching responses from the object server. sorry. when you said "rather than going to the cluster", I didn't understand because I consider the proxy to be part of the cluster | 18:14 |
| bharath12345 | notmyname, yes i was talking about that! sorry for the poor wording | 18:15 |
| bharath12345 | I was able to implement caching on the proxy server. Although its not well tested yet, i cache some small objects in the proxy. So instead of going to the object servers, I am able to return objects from the proxy server itself | 18:17 |
| bharath12345 | So when a PUT request comes in, i cache it in the proxy(i check if its a small object!) if the write to the object servers is successful. Then when a GET request comes by for that object, I just return it to the user from the proxy cache | 18:19 |
| notmyname | cool. did you implement it as proxy middleware? | 18:20 |
| bharath12345 | Nope. I implemented a cache controller(if you'd like to call it!) which is a class which interacts with the cache directory. I just did normal file handling to read and write to the cache. I gave the object it's own name(i.e if i wrote an object a.txt, the name of it in the cache would be a.txt :p) rather than as a timestamp which you guys did in the object server. I cache it(i.e the cache controller determines if its a write or read and | 18:24 |
| bharath12345 | goes to the cache directory and retrives it) before the proxy server routes the request to the particular object controller i.e before the handle_request function returns the swob.Response object | 18:24 |
| bharath12345 | I didnt study much about implementing middlewares :p | 18:25 |
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| openstackgerrit | Clay Gerrard proposed openstack/python-swiftclient master: Fix update when PUT on containers not allowed https://review.openstack.org/585325 | 18:54 |
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| tdasilva | zaitcev: started looking at p 427911 but it will take me some time, it's a pretty big and important patch, not sure if it's already been said, but this is one I'd suggest we get >1 +2 on it | 21:23 |
| patchbot | https://review.openstack.org/#/c/427911/ - swift - Replace MIME with PUT+POST for EC and Encryption | 21:23 |
| zaitcev | tdasilva: sure | 21:23 |
| zaitcev | tdasilva: but we pretty much have acoles on it already, ignoring the Content-Length change. | 21:24 |
| tdasilva | yep, that's definitely a plus! | 21:25 |
| tdasilva | gotta run but will continue tomorrow | 21:27 |
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