HttpFS Security Configuration
For more information about HttpFS, see http://archive.cloudera.com/cdh4/cdh/4/hadoop/hadoop-hdfs-httpfs/index.html.
To enable HttpFS to work with Kerberos security on your Hadoop cluster, make sure you perform the installation and configuration steps in Configuring Hadoop Security in CDH4.
If the NameNode, Secondary NameNode, DataNode, JobTracker, TaskTrackers, ResourceManager, NodeManagers, HttpFS, or Oozie services are configured to use Kerberos HTTP SPNEGO authentication, and two or more of these services are running on the same host, then all of the running services must use the same HTTP principal and keytab file used for their HTTP endpoints.
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