It sure does. You have a number of handler threads that serve multiple clients. As with Hadoop you can easily saturate on IO so that the core count is actually only helpful depending if you have a chance to use them properly. That is also why you must have if you can a spindle per core. Must run with less but you want to monitor your actual use and adjust hardware accordingly.
Lars On Nov 28, 2010, at 19:47, Jack Levin <magn...@gmail.com> wrote: > I run master, regionserver and zookeeper on one server. Good question though > - does regionserver run multi-threaded? > > -Jack > > > On Nov 28, 2010, at 4:44 AM, Marcus Chou <chou.mar...@gmail.com> wrote: > >> Hi all, >> As far as I know, one user account could have only one HBase instance, >> either HMaster or HRegionServer, run on a single machine. My question is, >> how many cores could HBase utilize, or rather could HBase scale on >> multi-core machines? >> >> Thanks in advance. >> >> -- >> Best regards, >> Mark
