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creiht | jeremyb: I think the use case you have been discussing is a bit outside what swift was designed for | 01:46 |
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creiht | and re: 1k files, in general that would be bad for storage since XFS has a default block size of 4k + 1k inode (but you will have that same issue storing those files on any system) | 01:47 |
creiht | Now you could possibly take parts of swift and build what you are talking about (or possible build on top of) but I think a lot of that is outside the designed use case of swift | 01:48 |
anotherjesse_ | creiht: what about 100GB files :) -- any thought to adding chunking at the API layer | 01:49 |
creiht | anotherjesse_: We will be talking about that at the conference :) | 01:50 |
anotherjesse_ | creiht: awesome - spent a few hours with folks at various govt agencies doing science and this was their #1 request | 01:50 |
creiht | And you know there is a nifty unix command named split right? :) | 01:50 |
anotherjesse_ | ORLY ;) yeah I know - you can do it on client side, but thought is that it should be built into api | 01:51 |
creiht | right now split and designing a naming scheme with marker queries will get you quite far | 01:51 |
creiht | anotherjesse_: agreed | 01:51 |
anotherjesse_ | since it isn't a unique requirement | 01:51 |
creiht | wow that last sentence didn't come out right at all | 01:51 |
creiht | too much sun at the airfield today | 01:51 |
anotherjesse_ | creiht: more generally, they were saddened with the state of existing object stores that only hit a single spindle per "replica" per file on upload | 01:52 |
creiht | anotherjesse_: yeah devcamcar and I talked about it a bit | 01:52 |
anotherjesse_ | (seems amazon does something similar is what they were saying) | 01:52 |
creiht | So you can actually do that now | 01:53 |
anotherjesse_ | oh, cool, didn't realize devin gave you the download | 01:53 |
creiht | kinda | 01:53 |
creiht | say you have a file name large_object.txt | 01:53 |
creiht | you could write a client script that uses the unix split command to split it into chunks of whatever size | 01:54 |
creiht | each chunk would be named large_object.txt.01 .02 .03, etc. | 01:54 |
anotherjesse_ | and then parallelize the upload | 01:54 |
creiht | yup | 01:54 |
creiht | you can get a listing of all the objects for large_object.txt by doing a prefix query (I think that is the right term) on large_object.txt | 01:54 |
anotherjesse_ | the use case we have seen is instruments producing information at GB/s or more - and wanting to push directly into object store | 01:54 |
creiht | which would give you all the chunks, download them, and concat them back together | 01:55 |
anotherjesse_ | ya | 01:55 |
anotherjesse_ | I think we want to focus on geographic redundancy first - but if we can get the folks doing massive datasets to help improve swift it would be awesome | 01:56 |
creiht | yeah | 01:56 |
creiht | We'll talk about all of that a lot more next week :) | 01:56 |
anotherjesse_ | looking forward to it | 01:56 |
creiht | And it is also good for use to get requests for new features with actual use cases :) | 01:57 |
creiht | is | 01:57 |
creiht | erm | 01:57 |
creiht | us | 01:57 |
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mlanner | hi, i've just installed swift for the first time. i followed the swift SAIO documentation. everything seemed to be going fine ... no errors along the way ... until i got to the very last statement, the probetest. while running the probetest the first time, it complained about 'user:group: in one file. i corrected a typo there, then ran it again. now, running both functest and probetest generate a ton of errors. anyone have | 05:30 |
mlanner | suggestions what to look for? | 05:30 |
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mlanner | k, nevermind. figured out my problem. had to delete all the .builder and .ring.gz and redo the entire last remakerings process again. it's all good now. | 06:20 |
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kim0 | Hi folks, I'm playing with the novascript, getting the following error at "run" stage | 13:47 |
kim0 | nova.exception.Error: volume group nova-volumes doesn't exist | 13:47 |
kim0 | although I attached a new disk "/dev/vdb" and created a LVM VG on that called "nova-volumes" | 13:47 |
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termie | why does bzr even bother writing the "estimate" down when you are branching a remote repo | 13:53 |
termie | it constantly changes, might as well be a windows progress bar | 13:53 |
kim0 | bah I have to actually create a LV for the VG dir to be created at /dev/%s .. ok | 13:55 |
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czajkowski | kim0: aloha | 13:58 |
kim0 | czajkowski: hey ;) | 13:59 |
kim0 | I'm past the nova-volumes issue, however it seems now libvirt can't create an instance, getting: | 14:06 |
kim0 | libvirtError: internal error process exited while connecting to monitor: chardev: opening backend "file" failed | 14:06 |
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kim0 | cool .. problem resolved .. instance launched | 14:20 |
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xtoddx | who handles the hudson configs? I'm curious as to the rules for building docs from nova source (is it using 'make html' or calling sphinx directly). | 17:54 |
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eday | xtoddx: mtaylor does | 19:15 |
xtoddx | eday: thanks | 19:15 |
xtoddx | mtaylor: ^^^^ re: hudson sphinx config? | 19:16 |
eday | xtoddx: looks like: | 19:21 |
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eday | export HUDSON_PUBLISH_DOCS=1 | 19:21 |
eday | python setup.py build_sphinx | 19:21 |
xtoddx | huh | 19:22 |
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mtaylor | xtoddx: python setup.py build_sphinx | 23:04 |
mtaylor | xtoddx: the HUDSON_PUBLISH_DOCS=1 is a hack to allow us to inject google analytics headers into the output for the ones we publish and to not have those headers wind up in anything that folks generate locally | 23:06 |
xtoddx | cool, i think we've pretty much got everything working again in lp:~anso/nova/trunkdoc using setup.py instead of relying on make html | 23:07 |
mtaylor | xtoddx: excellent | 23:09 |
mtaylor | where did make html come from? | 23:09 |
xtoddx | initial sphinx setup make a makefile for you | 23:09 |
mtaylor | ah yes. | 23:10 |
mtaylor | sorry - I thought I'd deleted that ages ago | 23:10 |
mtaylor | xtoddx: what does your ext.autodoc do? | 23:11 |
xtoddx | generates module documentation | 23:11 |
xtoddx | by inspecting the source tree and generating .rst files that call automodule | 23:11 |
mtaylor | cool | 23:11 |
* mtaylor has been meaning to write some sphinx extensions to do some similar things for the drizzle source... just hasn't gotten to it yet | 23:12 | |
mtaylor | so I may browse through what you did | 23:12 |
xtoddx | hopefully this can be a start | 23:12 |
xtoddx | pretty simple | 23:12 |
xtoddx | right now we're working on getting FLAGS documentation auto generating | 23:13 |
mtaylor | sweet | 23:13 |
mtaylor | that's a good idea | 23:13 |
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