[YARN-5412] Create a proxy chain for ResourceManager REST API in the Router

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-beta1
• Component/s: nodemanager, resourcemanager
• Hadoop Flags: Reviewed
• Assignee: Giovanni Matteo Fumarola
• Reporter: Subramaniam Krishnan
• Created: 21/Jul/16 01:11
• Updated: 25/Sep/17 21:26
• Resolved: 27/Jul/17 21:37

Description

As detailed in the proposal in the umbrella JIRA, we are introducing a new component that routes client request to appropriate ResourceManager(s). This JIRA tracks the creation of a proxy for ResourceManager REST API in the Router. This provides a placeholder for:
1) throttling mis-behaving clients (YARN-1546)
3) mask the access to multiple RMs (YARN-3659)

We are planning to follow the interceptor pattern like we did in YARN-2884 to generalize the approach and have only dynamically coupling for Federation.

Issue Links

• depends upon: YARN-6634 [API] Refactor ResourceManager WebServices to make API explicit
• is blocked by: YARN-6587 Refactor of ResourceManager#startWebApp in a Util class
• is blocked by: YARN-6792 Incorrect XML convertion in NodeIDsInfo and LabelsToNodesInfo
• is blocked by: YARN-5203 Return ResourceRequest JAXB object in ResourceManager Cluster Applications REST API