The reason I talk about value size is one area where multiple families are good is when you have really large values in one column and smaller values in different columns. So if you want to just read the small values without scanning through the big values you can use separate column families.
-ryan On Mon, Oct 11, 2010 at 9:32 AM, Jean-Daniel Cryans <[email protected]> wrote: >> Yes. I agree. OOME unlikely. I misinterpreted my current problem. >> I found, that this (gc timeout) on my 0.89-stumpbleupon hbase occurs >> only if writeToWAL=false. My RS eats all available memory (5GB), but >> don't get OOME. I try ti figure out what is going on. > > Long GC pauses happens for many different reasons, first make sure > that your IO, CPU, and RAM aren't over committed and that there's no > swap. > >> Hm.. How I can flush family from client side? I don't see any api in 0.20.x. >> Is it 0.89 api changes? (don't dig into 0.89 yet). >> > > You can't, I was talking about a possible fix in the code. > >> >> Sorry for wrong information. > > No problem :) > > J-D >
