Large files can be split into small blocks, and the size of block can be tuned. It may increase the complexity of writing such a file system, but can be for general purpose (not only for relative small files)
On Thu, Apr 15, 2010 at 10:08 AM, Tatu Saloranta <tsalora...@gmail.com>wrote: > 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 +- >
