Re: [ANNOUNCE] xen ocaml tools

[Patrick Colp <pjcolp@cs.ubc.ca>]

I'm really excited to see somebody else working on an OCaml XenStore! I 
was wondering if you could tell me what the difference are between this 
implementation and the one I recently released to the community?

I think it would be great if we could work together to merge our work so 
we can get the best of both worlds.


Patrick


Vincent Hanquez wrote:
> Hi xen-devel,
> 
> I'm pleased to announce the availability of the Xen ocaml tools
> repository. This contains for now, a fully rewritten version of xenstored,
> which should be better than the C version available in the xen repository.
> 
> = License
> 
> This is part of an effort to try to opensource some Citrix internals
> things that the open-source community could use and/or find useful. As such
> all the code in this repository are licensed under the LGPLv2 with ocaml
> static exception as common in the ocaml world. Please see the LICENSE file.
> 
> = Improvements (compared to C xenstored)
> 
> * scalability: transactions have a much better behavior in this version
>  leading to significant improvements during aggressive use of xenstored
>  and preventing possible guest xenstored DoS.
> * no disk database: everything is cheaply stored in memory.
> * small code base in a functional language.
> 
> = Getting the source
> 
> as easy as: hg clone http://xenbits.xensource.com/ext/xen-ocaml-tools.hg
> 
> = Building
> 
> You need to have a built xen, and a working ocaml compiler (native and
> bytecode). if you don't have xen installed in /, you need to set
> your env XEN_DIST_ROOT to the xen dist path (on bourne shell
> export XEN_DIST_ROOT=/path/to/my/built/xen/dist/)
> 
> once you're there, typing make will build the binaries.
> 
> = Installing
> 
> ocaml xenstored is a drop in replacement of C xenstored, replacing
> /usr/sbin/xenstored by the ocaml one will just works.
> You also need to copy xenstored.conf in the xenstored directory on the 
> destination at /etc/xen/.
> 
> Once you did that, you need to restart your host
> (just like if you would want to restart C xenstored).
> 
> = Any problems
> 
> well, let us know, Thomas (CCed) and I, we'll be happy to help you solve 
> problems that may arise.
> 
> Cheers,