[email protected] wrote: > I just saw a video on how "ShareThis" is implementing its analytics (though > on mongodb) using buffer queues > (link<http://www.10gen.com/presentation/mongosv2010/sharethis> > ). > > Coming back to the problem in hand, I did a quick test. > > _rev_limit=1000 (default) > Counter started from 0 & was incremented to 44,000 > > I managed to generate 1GB of disk usage in the database... > (I added a couple of attachments to the document (~80k) to simulate real > world size of the document). > > 1GB disk usage for just incrementing a counter is a bit too large…
I Instead of updating a document you could also use a reduce function to count. 1. Add a document for every count. 2. emit(foo, 1) in your map function. 3. Use the _count built-in as the reduce function. It might not more efficient diskspace wise, but it probably will save a lot of update/conflict headaches. Just my 2 ct., Nils. ------------------------------------------------------------------------ VPRO www.vpro.nl ------------------------------------------------------------------------
