[erlang-questions] MySQL cluster

Yariv Sadan <>
Fri Oct 20 19:50:43 CEST 2006


Sounds like a fascinating combination! Please let us know what you find.

Cheers,
Yariv

On 10/20/06, Roberto Saccon <> wrote:
> I had the same question and I am currently investigating in using
> mnesia just as cache for a clustered web application running on amazon
> EC2 and the real storage is on amazon S3 (which is kind of  Berkley DB
> webservice) and capable to store any number of TBs ...
>
> On 10/20/06, Christian S <> wrote:
> > On 10/20/06, Dmitrii Dimandt <> wrote:
> > > What's the optimum maximum size for Mnesia then? A bout a couple of
> > > gigabytes? Or more?
> >
> > What should such a number for maximum size try to optimize?
> >
> > A note about picking database after storage size needs:
> >
> > Using mnesia instead of an external database always have advantages in
> > terms of "impedance matching" (Mnesia has erlang's datatypes by virtue
> > of being erlang and you can query mnesia faster than anything
> > connected to through tcp). This often makes it worthwile to hack
> > around mnesia to store some data outside of it.
> >
> > One would easily reach a storage size of 1Tb for a site like flickr.
> > Does that mean mnesia wouldnt be sufficient for building such a site?
> > Or perhaps it could be a good idea to build an application that
> > replicates images across nodes outside of mnesia, and have mnesia
> > store small image ids to reference them.
> > _______________________________________________
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> > 
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> >
>
>
> --
> Roberto Saccon
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