[HADOOP-16449] Allow an empty credential provider chain, separate chains for S3 and DDB

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.2.0
• Component/s: fs/s3
• Target Version/s: 3.3.0
• Assignee: Siddharth Seth
• Reporter: Siddharth Seth
• Created: 23/Jul/19 07:49
• Updated: 27/Jul/19 01:01
• Resolved: 27/Jul/19 01:01

Description

Currently, credentials cannot be empty (falls back to using the default chain). Credentials for S3 and DDB are always the same.

In some cases it can be useful to use a different credential chain for S3 and DDB, as well as allow for an empty credential chain.