[HDFS-11174] Wrong HttpFS test command in doc

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 2.7.4, 3.0.0-alpha2
• Component/s: documentation, httpfs
• Target Version/s: 2.7.4
• Hadoop Flags: Reviewed
• Assignee: John Zhuge
• Reporter: John Zhuge
• Created: 24/Nov/16 18:57
• Updated: 25/Nov/16 18:45
• Resolved: 25/Nov/16 12:32

Description

There are 2 errors in section Test HttpFS is working in http://hadoop.apache.org/docs/r2.7.3/hadoop-hdfs-httpfs/ServerSetup.html

~ $ curl -i "http://<HTTPFSHOSTNAME>:14000?user.name=babu&op=homedir"
HTTP/1.1 200 OK
Content-Type: application/json
Transfer-Encoding: chunked

{"homeDir":"http:\/\/<HTTPFS_HOST>:14000\/user\/babu"}

1. The URL path should be /webhdfs/v1.
2. The op should be gethomedirectory, not homedir.

The curl command would produce this error:

$ curl 'http://localhost:14000/webhdfs/v1?op=homedir&user.name=hdfs' | json_pp
{
   "RemoteException" : {
      "message" : "java.lang.IllegalArgumentException: No enum constant org.apache.hadoop.fs.http.client.HttpFSFileSystem.Operation.HOMEDIR",
      "exception" : "QueryParamException",
      "javaClassName" : "com.sun.jersey.api.ParamException$QueryParamException"
   }
}

The correct command should be:

$ curl 'http://localhost:14000/webhdfs/v1?op=gethomedirectory&user.name=hdfs' | json_pp
{
   "Path" : "/user/hdfs"
}