On Tue, Feb 12, 2002 at 11:50:03PM +0800, Benj wrote (wyy sez):
> Hi Xander
>
hello, like any cluster person will say. it depends on the application.
there is still currently no solve-all-cluster-problems solution to
PC clustering. 
 
> On Tue, Feb 12, 2002 at 02:27:35PM -0000, Xander Solis wrote:
> > Is there an existing clustering technology 
> > available that combines the 3 types of 
> > clustering technologies(performance clustering,
> > high availability and load balancing)
> > I believe that the last 2 are provided by MOSIX
> > The first one is provided by a Beowulf Cluster
> > Is there a technology that combines all three?
> 
MOSIX migrates system processes to other machines. however, if
the processes is I/O bound or uses shared memory (most of the
useful ones are. DB, httpd and others) they cannot be migrated.
MOSIX is good for compile farms (make -j option). it is also 
good if you intend to write fork-and-forget applications.

Beowulf clustering is just a general purpose cluster that aims
to provide developers with a media to run standard clustering
libraries on PC clusters. such libraries are PVM, MPI, BSP,
ScalaPACK, PETSc and friends. so if you intend to use these
libraries in your programs then beowulf is the answer.

LVS is another way of cluster that aims to solve general
network computing problems. this is used to making HTTP farms
and others.

> I remembered a feature in Linux Today about Single System Image
> Clustering. It looks like what you're looking for.
> 
> http://foundries.sourceforge.net/clusters/index.pl?node_id=38692
> 
> The SSI homepage is on
> 
> http://ssic-linux.sourceforge.net/
> 
SSI is just a generalization of Beowulf efforts. they are trying to
put all the pieces needed to make a beowulf under one package.
 
--------------------------------------
William Emmanuel S. Yu
Ateneo Cervini-Eliazo Networks (ACENT)
email  :  wyy at admu dot edu dot ph
web    :  http://CNG.ateneo.net/wyu/
phone  :  63(2)4266001-4186
GPG    :  http://CNG.ateneo.net/wyu/wyy.pgp
 
War spares not the brave, but the cowardly.
                -- Anacreon
 

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