CassandraHardware - Cassandra Wiki
Memory The most recently written data resides in memory tables (aka memtables), but older data that has been flushed to disk can be kept in the OS's file-system cache. In other words, the more memory, the better, with 4GB being the minimum we typically recommended in a virtualized environment (e.g., EC2 Large instances). Obviously there is no benefit to having more RAM than your hot data set, but
CassandraLimitations - Cassandra Wiki
Limitations CQL No join or subquery support, and limited support for aggregation. This is by design, to force you to denormalize into partitions that can be efficiently queried from a single replica, instead of having to gather data from across the entire cluster. Ordering is done per-partition, and is specified at table creation time. Again, this is to enforce good application design; sorting tho
WTF is a SuperColumn? An Intro to the Cassandra Data Model — Arin Sarkissian
For the last month or two the Digg engineering team has spent quite a bit of time looking into, playing with and finally deploying Cassandra in production. It’s been a super fun project to take on – but even before the fun began we had to spend quite a bit of time figuring out Cassandra’s data model… the phrase “WTF is a ’super column’” was uttered quite a few times. If you’re coming from an RDBM
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RunningCassandra - Cassandra Wiki
How To Configure Cassandra On A CentOS Media Temple DV Server
http://agilecatcloud.com/2010/03/14/digg-%E3%81%8C-cassandra-%E3%82%92%E6%8E%A1%E7%94%A8%E3%81%99%E3%82%8B%E7%90%86%E7%94%B1-by-john-quinn/
