[HBASE-18884] Coprocessor Design Improvements follow up of HBASE-17732

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-alpha-4, 2.0.0
• Component/s: Coprocessors
• Labels: incompatible
• Assignee: Apekshit Sharma
• Reporter: Apekshit Sharma
• Created: 27/Sep/17 00:40
• Updated: 21/Mar/18 22:16
• Resolved: 28/Sep/17 17:38

Description

Creating new jira to track suggestions that came in review (https://reviews.apache.org/r/62141/) but are not blocker and can be done separately.

Suggestions by apurtell

• Change Service Coprocessor#getService() to List<Service> Coprocessor#getServices()
• I think we overstepped by offering table resource management via this interface. There are a lot of other internal resource types which could/should be managed this way but they are all left up to the implementor. Perhaps we should remove the table ref management and leave it up to them as well.

  ---

• Checkin the finalized design doc into repo (https://docs.google.com/document/d/1mPkM1CRRvBMZL4dBQzrus8obyvNnHhR5it2yyhiFXTg/edit) (fyi: stack)
• Added example to javadoc of Coprocessor base interface on how to implement one in the new design

Issue Links

• blocks: YARN-7213 [Umbrella] Test and validate HBase-2.0.x with Atsv2
• relates to: HBASE-17732 Coprocessor Design Improvements
• links to: Review Board (master)