We usually run the namenode and the HBase master on the same machine. Caveat, any machine that is not at least a dual core will have problems running either Hadoop or HBase as both are very thread intensive.
--- Jim Kellerman, Powerset (Live Search, Microsoft Corporation) > -----Original Message----- > From: Harold Lim [mailto:[email protected]] > Sent: Tuesday, May 12, 2009 10:28 AM > To: [email protected]; stack > Subject: Re: Hadoop file system + HBase > > > Great. Thanks. > > What about the HDFS NameNode and Hadoop Master? Do you separate them > or put them on the same machine? > > > -Harold > > > --- On Tue, 5/12/09, stack <[email protected]> wrote: > > > From: stack <[email protected]> > > Subject: Re: Hadoop file system + HBase > > To: [email protected], [email protected] > > Date: Tuesday, May 12, 2009, 1:10 PM > > On Tue, May 12, 2009 at 9:59 AM, Harold Lim > > <[email protected]> wrote: > > > > > > > > Do I install my HBase regionservers on the same > > machines that have HDFS > > > datanodes? > > > > > > > > > Run the regionserver beside the datanode; thats how most of > > us do it. You > > could separate them; there'd probably be little > > difference in performance > > (but I haven't measured of late). > > St.Ack > > >
