[HDFS-7179] DFSClient should instantiate a KeyProvider, not a KeyProviderCryptoExtension

• Type: Sub-task
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.6.0
• Component/s: encryption
• Target Version/s: 2.6.0
• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 02/Oct/14 01:09
• Updated: 01/Dec/14 03:09
• Resolved: 02/Oct/14 21:02

Description

When fetching delegation tokens, we attempt to cast the KeyProvider to a DTExtension. However, right now the KP is already wrapped into a CryptoExtension, so it will never be a DTExtension, so we aren't able to get delegation tokens from the KMS.