We have an upper limit of 100MB in Hue. If you want to upload more than 100MB file, copy the file from your local machine to CloudxLab web console first using SCP or WinSCP and then move the file to HDFS from CloudxLab web console.
Also please note that we have provided you a 1GB storage in HDFS. You'll not be able to upload files more than 1GB.