[KNOX-173] leverage presence of delegation token to avoid buffering request entity

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3.0
• Fix Version/s: 0.3.0
• Component/s: Server
• Assignee: Dilli Arumugam
• Reporter: Dilli Arumugam
• Created: 30/Sep/13 23:14
• Updated: 28/Mar/19 14:12
• Resolved: 01/Oct/13 00:42

Description

At present, HttpClientDispatch caches request entities while talking to services in secure cluster to replay the entity for a potential WWW-Authenticate challenge from service.

This could be improved by leveraging delegation token coming down with the request to Knox. When we pass down the delegation token, we do not expect to see WWW-Authenticate challenge. When Knox gets request from client targeted to DataNode, it would always have DelegationToken. So, large files would be streamed straight without any buffering.

Issue Links

• is related to: KNOX-157 Knox is not able to process PUT/POST requests with large payload