//WARNING message : WARN -- : You are setting a key that conflicts with a built-in method Restforce::Mash#length defined in Hash. This can cause unexpected behavior when accessing the key as a property. You can still access the key via the # method.
The data is transfered to specified output file, but only the field is visible instead of data value.
e.g. Received output log in the file as :
2019-01-03T06:08:29.193Z %{host} %{message}
2019-01-03T06:08:29.230Z %{host} %{message}
2019-01-03T06:08:29.042Z %{host} %{message}
2019-01-03T06:08:29.224Z %{host} %{message}
2019-01-03T06:08:29.201Z %{host} %{message}
2019-01-03T06:08:29.236Z %{host} %{message}