[erlang-questions] "Erlang plus BDB: Disrupting the Conventional Web Wisdom"

Torbjorn Tornkvist <>
Fri Oct 12 10:00:30 CEST 2007


Claes Wikstrom wrote:
> Damien Morton wrote:
>> Is there any reason why Mnesia couldnt use BDB instead of dets?
>>
> 
> It could, and that would indeed remedy one of the weak points of
> mnesia as of today, i.e. dets.
> Dets is a fine module, but it is certainly beginning to show
> its age. When it was written, 12 years ago, the 4G space limitation
> seemed as a minor issue.
> 
> We need to do a dets rewrite which addresses the two issues
> of size and repair speed. Once those two issues are fixed, I think
> mnesia stands up just fine to the rest of the dbs out there. 

<wild idea>
Perhaps some of the companies that have an interest in this
could cough up funding for one person to do this?
</wild idea>

--Tobbe


> Until then
> Mnesia only rock if we're sure that the amount of data in our largest
> table is limited to a few Gig.
> 
> BDB is certainly a fine DB, but don't forget it's really expensive
> unless you're whipping up a db backend for your local high school
> or some such.
> 
> 
> /klacke
> 




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