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From Jay Vyas <jayunit...@gmail.com>
Subject Specific HDFS tasks where is passwordless SSH is necessary
Date Tue, 05 Feb 2013 23:06:05 GMT
When setting up passwordless ssh on a cluster, its clear that the namenode
needs to be able to ssh into task trackers to start/stop nodes and restart
the cluster.

What else is passwordless SSH used for?  Do TaskTrackers/DataNodes ever SSH
into each other horizontally ? Or is SSH only used for one-way nn to tt

Jay Vyas

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