Hi Sean, Based on the HBase user recommendations: http://search.gmane.org/?query=Advice+sought+for+mixed+hardware+installation&group=gmane.comp.java.hadoop.hbase.user
It's a mixed hardware configuration. In truth, we will likely run 1 mapper on each DN to make the most of data locality. The 3 TT nodes are hefty dual quad with hyper threading and 24G, but the 9 RS are only single quad and 8G Cheers, Tim On Fri, Oct 29, 2010 at 4:11 PM, Sean Bigdatafun <sean.bigdata...@gmail.com> wrote: > Why would you only run 9 RS and leave 3 mapreduce-only nodes? I can't see > any benefit of doing that. > > Sean > > On Thu, Oct 28, 2010 at 2:52 AM, Tim Robertson > <timrobertson...@gmail.com>wrote: > >> Hi all, >> >> We are setting up a small Hadoop 13 node cluster running 1 HDFS >> master, 9 region severs for HBase and 3 map reduce nodes, and are just >> installing zookeeper to perform the HBase coordination and to manage a >> few simple process locks for other tasks we run. >> >> Could someone please advise what kind on heap we should give to our >> single ZK node and also (ahem) how does one actually set this? It's >> not immediately obvious in the docs or config. >> >> Thanks, >> Tim >> >
