[Beowulf] Beowulf and apahce2
eagles051387 at gmail.com
Wed Apr 3 22:02:23 PDT 2013
You mention prefork is it even worth the time to work with the prefork
version, why not use the event driven or threaded versions of apache?
On Thu, Apr 4, 2013 at 6:57 AM, Christopher Samuel <samuel at unimelb.edu.au>wrote:
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> On 04/04/13 08:26, Afonso Bione wrote:
> > Hi,
> Hi Afonso,
> > Please, I know apache2 can do Load Balancer, but, I'm doing a
> > research cluster with low cost and if possible, I'dlike that, if
> > someone would have a tip for using httpd only on node0 and
> > depending on the need mpi would run automatically on node1, node2,
> > node3, using their memorys and cpus.
> By that do you mean the Apache processes themselves would be MPI
> If that's the case I doubt if anyone has done that, serving web pages
> is very much an embarrassingly parallel type application so it's
> likely to be far more efficient to run the head node of the cluster as
> a reverse proxy/load balancer and use the compute nodes as individual
> web servers to service those requests.
> There was a similar query on the Apache users list back in 2010 which
> was answered along the same vein:
> If you wanted to get this going as a toy project yourself then you may
> find it better to instead try and run the cluster as a single system
> image (SSI) using something like OpenMOSIX, OpenSSI or Kerrighed
> instead. That way you won't need to modify Apache and they (should)
> try and migrate the prefork processes around to load balance.
> Note that I have no idea if any of those 3 projects are still actively
> Best of luck!
> - --
> Christopher Samuel Senior Systems Administrator
> VLSCI - Victorian Life Sciences Computation Initiative
> Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
> http://www.vlsci.org.au/ http://twitter.com/vlsci
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