The recommended setup if you want to put RS and ZK on the same node, is to ensure ZK has its own dedicated disk.
> -----Original Message----- > From: Michael Segel [mailto:[email protected]] > Sent: Tuesday, November 30, 2010 5:35 AM > To: [email protected] > Subject: RE: Scalability on multi-core machines > > > > > > Subject: Re: Scalability on multi-core machines > > From: [email protected] > > Date: Sun, 28 Nov 2010 10:47:22 -0800 > > To: [email protected] > > > > I run master, regionserver and zookeeper on one server. Good question > though - does regionserver run multi-threaded? > > > > -Jack > > > Don't. > > Or rather don't run a Regionserver and Zookeeper on the same machine. > From our experience... we're disk i/o bound before we're cpu bound and > network bound. > > We run hbase on machines that are also running m/r TT and DN. >
