Verifies that a file exists in HDFS.
The name of a file in HDFS. The file name can include a path that is either absolute or relative to the current path.
If this function returns TRUE
, then you can attach the data and use it in a hadoop.run
function. You can also use this function to validate an HDFS identifier and ensure that the data exists.
TRUE
if the identifier is valid and the data exists, or FALSE
if the object is not found