[tahoe-dev] Go package for Zfec
Hi, I've created a Go package for the zfec library and used it to port the zfec/zunfec command line tools (as an example). To install it run: go get gitorious.org/zfec/go-zfec.git To read documentation: http://godoc.org/git.gitorious.org/zfec/go-zfec.git The two repos are here: https://gitorious.org/zfec Regards, Simon ___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
Re: [tahoe-dev] Go package for Zfec
On Fri, Nov 01, 2013 at 11:22:49PM -0700, Simon Liu wrote: Hi, I've created a Go package for the zfec library and used it to port the zfec/zunfec command line tools (as an example). To install it run: go get gitorious.org/zfec/go-zfec.git To read documentation: http://godoc.org/git.gitorious.org/zfec/go-zfec.git The two repos are here: https://gitorious.org/zfec Regards, Simon There is also a go port (as opposed to go bindings for the C implementation) here: https://github.com/korvus81/jfec (I have not used it; I just discovered it the other day while looking for a link to zfec to send to this list.) There is also a JavaScript implementation here: https://github.com/richardkiss/js_zfec It would be nice if there was a single place on the web with information about all of these, perhaps https://tahoe-lafs.org/trac/zfec ? Right now that page has an error about trac not having the darcs plugin. ~leif signature.asc Description: Digital signature ___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
Re: [tahoe-dev] zfec 1.4.24 standalone install quickstart?
On Sat, Oct 26, 2013 at 03:29:05AM +, Garonda Rodian wrote: I'm certain I'm making beginner mistakes, but in my defense, I think I'm simply trying to follow the README.rst after downloading from https://pypi.python.org/pypi/zfec Is there some pyutil install I'm supposed to do first? [...] Yes, you need pyutil which you can find at https://pypi.python.org/pypi/pyutil or you can have pip install it for you BUT be careful of older versions of pip which have a bad habit of downloading code over HTTP or unverified HTTPS. I just tested and confirmed that zfec installs correctly (and safely, relying on HTTPS and PyPI) into a new virtualenv (root not required) using these steps: wget https://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.10.1.tar.gz tar xf virtualenv-1.10.1.tar.gz ./virtualenv-1.10.1/virtualenv.py ./zfec_venv source ./zfec_venv/bin/activate pip install --no-allow-insecure zfec happy hacking, ~leif signature.asc Description: Digital signature ___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
[tahoe-dev] How can I get the algorithm or some theory about the zfec
How can I get the algorithm or some theory about the zfec,the source code fec.c is so difficult that I can't unstand,so I want to get some doc about how the zfec work ,Can someone give me some information?___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
Re: [tahoe-dev] How can I get the algorithm or some theory about the zfec
I am working on this with my professor at school. My best advise is to dig into zfec and get real good at linear algebra. I am creating some infografics to explain this better. You are right its complicated but very cool. I will keep you posted if you like? Jason Johnson projectseven.us netgreen.ustahoe loves me On Sat, Nov 2, 2013 at 07:30, xiao_s_yuan wrote: How can I get the algorithm or some theory about the zfec,the source code fec.c is so difficult that I can't unstand,so I want to get some doc about how the zfec work ,Can someone give me some information? ___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
Re: [tahoe-dev] I want to know where the erasure-codes partment in the source codes!
On 10/31/13 2:17 AM, xiao_s_yuan wrote: oh,It means that the tahoe-LAFS uses zefc to realise erasure coding ,someone told me that it maybe uses RS erasure coding in it,so I want to read the source code about the eraseure coding but I can't find it for a while,now I know,so if I want to do some research on the erasure coding in tahoe-LAFS,I have to study the zefc ,is it right? I think zfec does use Reed-Solomon coding. At least, this paper[1] implies that it does. (If I'm wrong, then hopefully Zooko will speak up. I don't know much of the math behind RS coding.) [1] https://www.usenix.org/legacy/events/fast09/tech/full_papers/plank/plank.pdf signature.asc Description: OpenPGP digital signature ___ tahoe-dev mailing list tahoe-dev@tahoe-lafs.org https://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
