SetOwner Method
Sets a resource's owner and/or group.
Syntax
hadoopdfs.setOwner(path, owner, group, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
This method set the owner and/or group of the resource at Path to the given values.
If non-empty, Owner must be a valid user name, and Group must be a valid group name. If either parameter is empty, the file's current value will remain unchanged. (If both parameters are empty, no request is sent.)