Phil Zampino created KNOX-1117:
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             Summary: HostMap Provider configuration comment in topologies 
included with Knox has typos
                 Key: KNOX-1117
                 URL: https://issues.apache.org/jira/browse/KNOX-1117
             Project: Apache Knox
          Issue Type: Bug
          Components: Release
    Affects Versions: 0.14.0
            Reporter: Phil Zampino
            Assignee: Phil Zampino


The topologies included in conf/topologies include hostmap provider config with 
a comment that needs some work (IMO).


"Defines rules for mapping host names internal to a Hadoop cluster to 
externally accessible host names. For example, a hadoop service running in AWS 
may return a response that includes URLs containing the some AWS internal host 
name.  If the client needs to make a subsequent request to the host identified 
in those URLs they need to be mapped to external host names that the client 
Knox can use to connect.

If the external hostname and internal host names are same turn of this provider 
by setting the value of enabled parameter as false.

The name parameter specifies the external host names in a comma separated list.
The value parameter specifies corresponding internal host names in a comma 
separated list."

Note that when you are using Sandbox, the external hostname needs to be 
localhost, as seen in out of box sandbox.xml.  This is because Sandbox uses 
port mapping to allow clients to connect to the Hadoop services using 
localhost.  In real clusters, external host names would almost never be 
localhost."



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