On Wed, Jul 13, 2011 at 2:37 PM, Vadim Keylis <[email protected]> wrote: > Good afternoon. We are exploring option of serving images directly from > hbase. If we were using hbase to store images, how many disk IOPs would it > take to serve from disk the first time it is accessed? >
Depends on where the image to serve is found. If it could be possibly in all storefiles -- if we can't rule it out because its row key could be present in a storefile -- and you have ten of them and no bloom filter action going on, then it could be ten. If we can figure the image is in one storefile only, then its one seek. Can you measure yourself with a test dataset? St.Ack
