Yes, in trunk. You need the following trick: whirr.instance-templates=1 hadoop-namenode+hadoop-jobtracker, 5 hadoop-datanode+hadoop-tasktracker, 5 noop+hadoop-datanode+hadoop-tasktracker
whirr.templates.hadoop-datanode+hadoop.tasktracker.hardware-id=m1.medium whirr.templates.noop+hadoop-datanode+hadoop.tasktracker.hardware-id=m1.large Cheers, -- Andrei Savu / axemblr.com / Tools for Clouds On Tue, May 15, 2012 at 11:53 PM, Andrii Vozniuk <[email protected]> wrote: > Hi all, > > For research reasons I would like to run Hadoop MapReduce on a > heterogeneous EC2 cluster placing 5 datanodes+tasktrackers on m1.medium and > 5 datanodes+tasktrackers on m1.large instances. > > I know that in https://issues.apache.org/jira/browse/WHIRR-332 some work > was done towards using different instances depending on a role. But in my > case I need to use different instances for the same role. > > Is this level of customization supported? If not, does the whole > architecture supports possible introduction of this feature? > > -- > Best regards > Andrii Vozniuk >
