ReadBytes Property
The number of bytes to read when downloading a file.
Syntax
hadoopdfs.getReadBytes([callback]) hadoopdfs.setReadBytes( readBytes, [callback])
Default Value
-1
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 the getReadBytes([callback]) method is defined as:
function(err, data){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'data' is the value returned by the method.
The callback for the setReadBytes([callback]) 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 property specifies how many bytes should be read when DownloadFile is called. It can be used in tandem with StartByte to specify a specific range of the file to download.
If set to -1 (default), there is no limit on how many bytes will be read.
This property is not available at design time.
Data Type
Long64