[Nix-dev] Setup GlusterFS server on NixOS machines

[rohit yadav]

James,

I am certainly interested. However, I am relatively new to OS world and
haven't dealt with lower level details, though I am a linux user for
sometime. Managing cluster with ubuntu/debian posed a significant challenge
to me. Any experienced user would probably have no difficulty with standard
distributions but I found it very difficult. Then, I found NixOS which
offers significant advantage over other system (ex: create a single file to
manage the whole operating system with atomic rollback, therefore I could
experiment several things without fear of leaving system unstable). I do
not have specific preference for init system, I guess each have pros and
cons. I am mostly interested in building packages in deterministic way,
where NixOS shines (its actually the feature offered by Nix, which you can
install on Gentoo too I believe). Therefore, the packages you would build
in nix would still be usable on other platforms. You can get started with
NixOS very easily.
- Download an ISO image from here: "https://nixos.org/nixos/download.html"
- Follow these instruction: "
https://nixos.org/nixos/manual/sec-installation.html"

Lets get started with building the cluster of our choice. My first priority
is to really build a gluster/ceph based cluster to totally migrate to NixOS
and experiment with other packages.

Thanks,
Rohit


On Mon, Sep 28, 2015 at 9:28 AM, James <wireless at tampabay.rr.com> wrote:

> Roger Qiu <roger.qiu <at> polycademy.com> writes:
>
>
> >         I have very similar goals. It would be great if there are more
> >           individuals.
>
> >             In fact the main packages I need, seem to all be in nixos::
> >             mesos, spark, zookeeper, marathon, storm and others. In fact
> >             all I could
> >             find missing is 'tachyon'.
>
>
> I have most of these packages in gentoo, except tachyon and spark. If we do
> not find a quorum in nixos, as I know little about nixos other than what
> I have recently read, then I'll just complete the gentoo ebuilds and
> at that point I'll need folks to test and provide feedback. I also use
> openrc (so it's a non-systemd) cluster effort on my path. But if
> folks want to use systemd to build a mesos cluster, on gentoo, I think
> that too is very possible, as gentoo supports both openrc and systemd.
> Many are flocking to gentoo right now, because we have the best alternative
> to systemd; openrc [1].
>
> The clusters I'm interested in building, are optimized for performance::
> not only in the kernel but direct control over cgroups [2] to opetimze
> performance with bare-metal granularity over components. It's impossible to
> get that with most distro oriented cluster offerings. This is necessary
> to optimize a cluster for singularly large/complex tasks, like
> computational
> chemistry, sub-surface modeling of fluid flows, complex graphics and video
> rendering and analytics, just to name a few.
> Furthermore, the 'bare metal' approach will all for optimizing all sorts
> of distributed processing, available now via Clang-3.7.x (openmp)[3] and
> gcc-5.2 (OpenAcc). [4,5.6]
>
>
> Still, if nixos has all of this going on, the I'd like to test drive nixos.
> Maybe one of the devs can whip together a lived CD 'howto' to see it run?
> Then we can run a hi performance linpack on it (sys-cluster/hpl in gentoo)
> to benchmark the nixos offering?
>
> If you are interested, let's share emails and get a 'cluster club' started?
>
> Curious?
>
> James
>
> [1] https://wiki.gentoo.org/wiki/OpenRC
>
> [2] https://wiki.gentoo.org/wiki/OpenRC/CGroups
>
> [3] http://blog.cafarelli.fr/2015/09/testing-clang-3-7-0-openmp-support/
>
> [4] https://gcc.gnu.org/wiki/OpenACC
>
> [5] https://gcc.gnu.org/wiki/Offloading
>
> [6]
> http://www.phoronix.com/scan.php?page=news_item&px=GCC-5-Offloading-How-To
>
>
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>
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