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| openstackgerrit | Yuan Zhou proposed a change to openstack/python-swiftclient: Clean up raw policy stats in account stat https://review.openstack.org/110929 | 02:00 |
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| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: Generic payload trailer support for PUT requests https://review.openstack.org/111562 | 02:17 |
| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: EC: Datapath - HTTP PUT handling https://review.openstack.org/111615 | 02:17 |
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| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: Generic payload trailer support for PUT requests https://review.openstack.org/111562 | 03:03 |
| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: EC: Datapath - HTTP PUT handling https://review.openstack.org/111615 | 03:03 |
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| openstackgerrit | Yuan Zhou proposed a change to openstack/python-swiftclient: Clean up raw policy stats in account stat https://review.openstack.org/110929 | 03:28 |
| openstackgerrit | OpenStack Proposal Bot proposed a change to openstack/python-swiftclient: Updated from global requirements https://review.openstack.org/89250 | 03:28 |
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| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: EC: Datapath - HTTP GET handling https://review.openstack.org/111642 | 05:24 |
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| openstackgerrit | OpenStack Proposal Bot proposed a change to openstack/swift: Updated from global requirements https://review.openstack.org/88736 | 11:04 |
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| acoles | mattoliverau: just made a couple of suggestions on your abandoner email. Also you may want to request the owner to mark the patch as abandoned if it is, rather than leave untouched? that would save us some clicks. thanks. | 13:21 |
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| anand_ts | hello all, swift list given [Errno -2] Name or service not known suddenly, It was working fine for past one month. I have not changes anything in configuration files. Any help | 13:59 |
| anand_ts | but all the swift services are working fine | 14:00 |
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| notmyname | good morning | 14:35 |
| notmyname | I'll be at Box today and tomorrow with kevin and peluse and torgomatic and others doing work on EC | 14:36 |
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| zaitcev | Ask him what was that with the mass-re-upload | 14:47 |
| zaitcev | Looked like peluse lost control of a script :-) | 14:48 |
| notmyname | zaitcev: ya, he was trying to do a merge from master to feature/ec | 14:54 |
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| dfg | notmyname: i added a msg to that commit. sorry i was so vague before. that bug was kinda weird | 15:24 |
| notmyname | dfg: thanks | 15:28 |
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| openstackgerrit | Alistair Coles proposed a change to openstack/swift: Add a env var to use in-memory obj server in func https://review.openstack.org/92381 | 16:03 |
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| madhuri_ | Hi how can we delete container custom metadata? | 16:23 |
| madhuri_ | To delete object's metadata, we need to pass empty value for it | 16:24 |
| madhuri_ | But that doesn't seem to work on containers and account's metadata | 16:24 |
| dfg | madhuri_: you can send it a header x-remove-container-meta-key:something | 16:26 |
| dfg | madhuri_: the "something" is ignored but curl won't send the header if a value's not set | 16:27 |
| madhuri_ | So it means we need to pass some values with x-remove-container-meta-key | 16:28 |
| madhuri_ | And if curl doesn't send the header if its value is not set, then how in the case of object it gets done? | 16:29 |
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| dfg | madhuri_: no- you don't have to send a value. thats just a problem with curl | 16:34 |
| madhuri_ | Ok Thanks | 16:35 |
| dfg | madhuri_: oh- and its just a problem with my old version of curl- | 16:35 |
| madhuri_ | :) | 16:35 |
| madhuri_ | dfg: Does this x-remove- header works with objects too? | 16:40 |
| dfg | madhuri_: ya, and account metatdata | 16:42 |
| madhuri_ | I was thinking that there must be same support for containers and account metadata too, to delete it passing an empty header.. | 16:43 |
| madhuri_ | Does it make sense? | 16:43 |
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| dfg | madhuri_: i'm pretty sure sending an empty value does delete the values. but, from what i remember, some tools (like my curl) don't like sending headers with empty values. this caused a bunch of confusion so I added the x-remove-* thing a while back as a convenience | 16:46 |
| dfg | madhuri_: i'm pretty sure sending an empty value does delete the metadata. | 16:47 |
| dfg | typo there... | 16:47 |
| madhuri_ | Ok so that seems to be curl problem | 16:47 |
| dfg | ya | 16:47 |
| madhuri_ | There is such support already avilable in swift? | 16:47 |
| dfg | and some old php libraries or something... | 16:48 |
| dfg | its been there for a while- over a year | 16:48 |
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| openstackgerrit | Tushar Gohad proposed a change to openstack/swift: EC: Datapath - HTTP GET handling https://review.openstack.org/111642 | 17:11 |
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| notmyname | good morning (again) | 17:14 |
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| thomaschaaf | Hey what is the recommended memcache size for swift? with 64 M I just stumbled apon a lot of problems | 17:21 |
| notmyname | thomaschaaf: there isn't really a recommended size. memcache is used for caching auth tokens and account and container stats. depending on your cluster and use case, different values would be appropriate | 17:22 |
| notmyname | thomaschaaf: but I'm also guessing that you aren't memory constrained enough to struggle with bumping up the limit | 17:23 |
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| KodiakF | For any Swift people who might happen to be online - here's a weird failure condition: Downloading container contents results in a traceback if the container contains a "pseudo-folder": http://paste.openstack.org/show/90034/ | 17:25 |
| KodiakF | it creates a local folder of the same name and then bombs out | 17:27 |
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| KodiakF | Additionally I can't actually use the pseudo folder for anything - If I click on it in horizon I get a Horizon error page | 17:31 |
| thomaschaaf | notmyname: just wondering why it is not documented anywhere :( because 64 is not enough for a small cluster like ours | 17:31 |
| KodiakF | this is the horizon traceback when trying to click on a pseudo folder: http://paste.openstack.org/show/90037/ | 17:34 |
| zaitcev | Am I the only one who never heard of "pseudo-folders"? | 17:36 |
| notmyname | thomaschaaf: what are you seeing that would be a better value? could you add some info to the docs? http://docs.openstack.org/developer/swift/deployment_guide.html#memcached-considerations would be a good place to it | 17:37 |
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| KodiakF | zaitcev: There's a button for them in Icehouse in the Horizon UI. I'm brand new and am poking about | 17:39 |
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| ahale | i think pseudo-directory term has been used in the rackspace swift docs for a while, maybe thats where it spread from | 17:56 |
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| KodiakF | It's a push-button feature in the horizon UI. I'm hoping they take it out or make it easier to not break haha | 18:08 |
| tdasilva | zaitcev: i'm assuming by 'pseudo-folders' horizon is using this: http://docs.openstack.org/api/openstack-object-storage/1.0/content/pseudo-hierarchical-folders-directories.html ??? | 18:19 |
| notmyname | AFAIK, yes. and that's not a rackspace-specific thing | 18:21 |
| zaitcev | I probably should look into that traceback | 18:21 |
| tdasilva | i remember testing the api a while back and it seemed to work well | 18:22 |
| KodiakF | zaitcev: I'd be glad to help wherever possible as much as a non-python-programming Openstack newb can | 18:23 |
| KodiakF | Heck I can't even delete teh dang things from the swift cli | 18:23 |
| tdasilva | seems like a good api for a GUI (e.g., horizon) | 18:23 |
| KodiakF | I plan to just not use them the only problem for me is telling users not to use them | 18:24 |
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| gorazd | Can someone tell me is Swift AP (CAP theorem) the main differentiation to Ceph RGW (which follows more CP model)? Why would someone choose RGW over Swift? There could be some information found on mailing-lists which also describes other pros/cons (such as http://www.gossamer-threads.com/lists/openstack/dev/39720) but I would like to know what else is the case to choose Swift rather than Ceph RGW? | 20:35 |
| notmyname | gorazd: you've hit the high points with AP vs CP. and that determines the use cases it's good for. also http://siliconangle.com/blog/2014/07/29/ceph-and-swift-friends-not-enemies was recently written by chmouel and is a good overview of any perceived competition between the 2 | 20:38 |
| notmyname | gorazd: but we can answer other questions in here if you have more :-) | 20:39 |
| gorazd | Thank you John, I read that post also, it was interesting. Since I am deciding to choose best platform, I would also ask if Swift has roll-back functionality. So when SW updated I could easily go back, if I found new installation troubled... | 20:41 |
| gorazd | I am doing research, so I can no to advice best option for object-storage, including some "enterprise" functionalities... | 20:43 |
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| preeto | notmyname: Regarding the "DB doesn't exist" error I mentioned a couple of days ago. Managed to make it go away - reduced the weight on the affected node to 0 gradually, then increased it again. | 21:01 |
| notmyname | preeto: ah, good to hear | 21:02 |
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| openstackgerrit | A change was merged to openstack/swift-specs: Erasure Code Support for Swift https://review.openstack.org/106103 | 21:12 |
| openstackgerrit | A change was merged to openstack/swift: Allow HEAD for POST tempurls https://review.openstack.org/106471 | 21:12 |
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| gorazd | Could this also be the benefit of the Swift - reading interesting slides of different distributed FS comparison, where it says for CEPH CRUSH : "The data distribution is based on an hash function (no query needed to know the location of a given file). This means that the mapping is “unstable”: adding a disk server, mean that the whole clust" Is the RING in this case better option? https://indico.cern.ch/event/214784/ses | 21:18 |
| notmyname | gorazd: both ceph and swift use a consistent hashing system (or more generically a DHT) for data placement. I think some of your commend got stripped off, but the scheme is very stable and good for balance and operations | 21:19 |
| notmyname | gorazd: a good high-level overview of swift's design is at https://swiftstack.com/openstack-swift/architecture/ | 21:20 |
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| gorazd | Thank you John. Maybe also the question for you. Since erasure coding is one of the interesting features for object storage to have, I read that ceph uses some java SW library (i guess jerasure) which could be CPU intensive operation, speciall on rebuilding data. Will Swift with Juno relase get the erasure coding feature - but since there is some cooperation with Intel, i guess erasure coding will be on the HW level through I | 21:25 |
| notmyname | gorazd: EC work in swift is being actively worked on. I don't know if it will be done by Juno. we're working with many people about how the EC library will be implemented, and one option is jerasure. Intel's ISA-L library will be an option too. | 21:27 |
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| notmyname | gorazd: we're using pyeclib, which wraps liberasure, which can use many different EC implementations (jerasure, isa-l, etc) | 21:28 |
| gorazd | Thank you for the comments! | 21:29 |
| gorazd | ¸John, one more thing. Is Swift gateway (accessing object storage through hhtp rest or nfs/cifs) just part of your enterprise solution and not open-source Swift? | 21:31 |
| notmyname | gorazd: and yes, EC is expensive for CPU | 21:31 |
| notmyname | gorazd: the swiftstack gateway thing? ya, that's not open source and is part of the swiftstack product | 21:32 |
| gorazd | yes. that's correct. John, can I maybe also contact you for additional information regarding gatewy sw and other product details on your email in near future? We already talked in the past..... | 21:35 |
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| keving | @notmyname - i did not leave | 21:47 |
| notmyname | keving: https://review.openstack.org/#/c/109428/ | 21:47 |
| keving | notmyname: https://review.openstack.org/#/c/103644/ | 21:48 |
| notmyname | ya that :-) | 21:48 |
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| mattoliverau | Morning | 22:33 |
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| notmyname | mattoliverau: hi | 22:37 |
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