Fix host-based token incompatibilities in DFSUtil
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Key: HDFS-2786
URL: https://issues.apache.org/jira/browse/HDFS-2786
Project: Hadoop HDFS
Issue Type: Sub-task
Components: name-node, security
Affects Versions: 0.24.0, 0.23.1
Reporter: Daryn Sharp
DFSUtil introduces new static methods that duplicate functionality in NetUtils.
These new methods lack the logic necessary for host-based tokens to work.
After speaking with Suresh, the approach being taken is:
* DFSUtil.getSocketAddress will be removed. Callers will be reverted to using
the NetUtils version.
* DFSUtil.getDFSClient will changed to take accept a uri/host:port string
instead of an InetSocketAddress. The method will internal call
NetUtils.createSocketAddr. This alleviates the callers from being required to
call NetUtils.createSocketAddr and reduce the opportunity for error that will
break host-based tokens.
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