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 >