[TEZ-1611] Change DataSource/Sink to be able to supply URIs for credentials

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.1
• Hadoop Flags: Reviewed
• Assignee: Bikas Saha
• Reporter: Bikas Saha
• Created: 22/Sep/14 20:37
• Updated: 02/Oct/14 21:41
• Resolved: 25/Sep/14 21:21

Description

This way commonly used credentials (HDFS) can be obtained globally for the DAG and take advantage of previously cached credentials where appropriate. This would reduce round trips to the NN. The existing method to get credentials will still be in place for other credentials that we cannot obtain automatically via URIs