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xal
Olden but golden? In fact it looks like 0.6 realease is really far along. It's read performance got so good that a bunch of sites are ditching memcached(db) in favor of it.

Speaking of Cassandra, can anyone confirm that facebook is actually moving from Cassandra to hbase?

eevans
Facebook is tight-lipped about such matters. I do not think you're going to get confirmation here, (not one that I would trust).
fizx
Facebook is using both.
henrikschroder
Memcached is a completely different product, why would you stop using that just because you start using Cassandra?

Memcaheddb on the other hand is, IMHO, a misguided project. People ditching that is a very good thing. :-)

kingkilr
What I've heard is that facebook is using Cassandra exclusively for inboxes (and that they're using hbase for a bunch of other stuff).