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Created 09-30-2014 11:26 AM
This error is because you have configured a minimum required replication rather than a default level of replication.
Some systems, like Sqoop 2, purposefully set a low replication level for temporary files that they aren't worried about losing. With a required minimum replication the namenode will reject these requests as invalid.
The fix is to update the minimum required replication back to 1. Do this by resetting the property dfs.namenode.replication.min.