2011/3/2 Peter Schuller <peter.schul...@infidyne.com>: >> Is it advisable or ok to store photos, images and docs in cassandra where you >> expect high volume of uploads and views? > > To diverge a bit from the direction the thread is going: You can > definitely store large files in Cassandra. I would recommend against > doing so by simply smacking entire files into column values simple > because the architecture is such that columns are assumed to be > reasonably sized (lots of them fitting in memory, lots of temporary > columns are okay to create, etc). > > Off the top of my head my starting point would be using one row per > file and splitting the actual content up into columns. For dealing > with larger files you may wish to consider splitting into multiple > rows so that even individual files can get replicated across a cluster > (avoids single very large files causing out-of-disk or performance > problems on an individual node, and allows an individual file to enjoy > scaling out for performance). > </snip>
Hector has some InputStream/OutputStream implementation for doing such stuff since the last release. See: https://github.com/rantav/hector/tree/master/core/src/main/java/me/prettyprint/cassandra/io Maybe it helps. Bye, Norman
