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From John Lilley <john.lil...@redpoint.net>
Subject RE: How to get number of data nodes as a hadoop client
Date Sat, 21 Sep 2013 22:54:50 GMT
Never mind, its in the ApplicationClientProtocol class.
John


From: John Lilley [mailto:john.lilley@redpoint.net]
Sent: Thursday, September 19, 2013 6:12 PM
To: user@hadoop.apache.org
Subject: How to get number of data nodes as a hadoop client

How does a Hadoop client query the number of datanodes in a Hadoop cluster?  I see getClusterNodes()
in the RM protocol, but I'm having a hard time mapping that to a public class/interface that
a client would use.
Looking at it more carefully, I'd really like query the nodes in a specific queue or the "default
queue", if there is such a thing.
Thanks
john


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