I run on a mix environment of FC2 32 bit, FC5 32 bit, FC5 64 bit (IA64)
and FC6 64 bit and I'm throwing Ubuntu 6.10 64 bit into the mix today.
As far as I can tell, there's no difference except that the 64 bit JVMs
use more memory (twice as much space per object reference)
> Does anyone know whether Hadoop is able to run on IA64?