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Matei Zaharia commented on HADOOP-6392: --------------------------------------- Just curious, what's the reasoning for this? I would imagine that the NN communicates with the JT a lot and thus it helps to colocate them. Another useful option might be to allow the user to ask for a bigger instance type for the "master" node (if the script doesn't currently allow this). > Run namenode and jobtracker on separate EC2 instances > ----------------------------------------------------- > > Key: HADOOP-6392 > URL: https://issues.apache.org/jira/browse/HADOOP-6392 > Project: Hadoop Common > Issue Type: New Feature > Components: contrib/ec2 > Reporter: Tom White > Assignee: Tom White > > Replace concept of "master" with that of "namenode" and "jobtracker". Still > need to be able to run both on one node, of course. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.