APIPriorityAndFairness beta critiria

Author: yue9944882

keps/sig-api-machinery/20190228-priority-and-fairness.md

@@ -1782,6 +1782,14 @@ Alpha:
 - Adequate documentation for the changes
 - Minimum viable test cases mentioned in Test Plan section
 
+Beta:
+
+- Supports concurrency limiting upon long-running requests
+- Debug endpoint dumping fine-grained states of the queues for priority-levels
+- Allow constant concurrency shares in the priority-level API model
+- Necessary e2e test
+
+
 ## Implementation History
 
 (none yet)