How does Voldemort compare to Cassandra?

Question

How does Voldemort compare to Cassandra?

I\'m not talking about size of community and only want to hear from people who have actually used both.

Especially I\'m

Answer 1

Some additional comments:

• Regarding write speed, Cassandra should be faster -- it is designed to be faster to write than read (you can avoid immediate disk hit for writes due to specialized way storage is done)

But main difference I think is actually not performance but feature set: Voldemort is strictly a key/value store (currently anyway), whereas Cassandra can offer range queries (with order-preserving partitioner), and bit more structure around data (column families etc). Former is an important consideration for design; latter IMO less so, you can always structure BLOB data on client side.