Mnesia dB size limits

Logan, Martin <>
Wed Aug 30 16:12:25 CEST 2006


I have stored gigabytes in mnesia and not had a problem.  We had a
production telephony call detail record collection system that had in
excess of 500mb cached in mnesia and performed well. Perhaps one of the
other people that still works with that project can give figures for
throughput?

Cheers,
Martin

-----Original Message-----
From: 
[mailto:] On Behalf Of Damir Horvat
Sent: Wednesday, August 30, 2006 7:56 AM
To: 
Subject: Mnesia dB size limits

Hi!

I'm planing 50-70 Mbytes stored in mnesia database. I hope
this is still considered "sane" size? What are the upper limits where
system can still be called "production quality" in terms of dB speed?

Another question. Reading Joe's Robust server (bank server example), I
found this interesting:

...
[E] ->
    B = E#account.balance,
		{ok, B}
	end
...

Why not skip B and send {ok, E#account.balance} in the fist place?

Thanks, Damir.



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