Should I have a node dedicated for routing?

I have 3 nodes in my production EC2 cluster, all the same size (m1.xlarge).
All 3 are master eligible and hold data. Should I dedicate one node a non
master eligible and non data note to handle all the routing?

--
You received this message because you are subscribed to the Google Groups "elasticsearch" group.
To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.