On Wed, Apr 14, 2010 at 6:42 PM, Zhuguo Shi <bluefl...@gmail.com> wrote: > Hi, > Cassandra has a good distributed model: decentralized, auto-partition, > auto-recovery. I am evaluating about writing a file system over Cassandra > (like CassFS: http://github.com/jdarcy/CassFS ), but I don't know if > Cassandra is good at such use case?
It sort of depends on what you are looking for. From use case for which something like S3 is good, yes, except with one difference: Cassandra is more geared towards lots of small files, whereas S3 is more geared towards moderate number of files (possibly large). So I think it can definitely be a good use case, and I may use Cassandra for this myself in future. Having range queries allows implementing directory/path structures (list keys using path as prefix). And you can split storage such that metadata could live in OPP partition, raw data in RP. -+ Tatu +-
