Resource Requests, Limits, and QoS Classes

Resource Requests, Limits, and QoS Classes A workflow diagram generated by Archify. 01 / Resource Allocation Mechanisms 02 / Automatic QoS Assignment 03 / QoS Class Types 04 / Eviction Order During Resource Shortage Requests · guaranteed minimum · Resource Allocation Mechanisms Requests guaranteed minimum Limits · maximum usage · Resource Allocation Mechanisms Limits maximum usage Pod/Container · resources field · Resource Allocation Mechanisms Pod/Container resources field QoS Class · from requests and limits · Automatic QoS Assignment QoS Class from requests and limits BestEffort · no requests/limits · QoS Class Types BestEffort no requests/limits Burstable · requests set · not Guaranteed · QoS Class Types Burstable requests set · not Guaranteed Guaranteed · requests = limits (all ctrs) · QoS Class Types Guaranteed requests = limits (all ctrs) Eviction · in priority order · Eviction Order During Resource Shortage Eviction in priority order 1st priority 2nd priority 3rd priority sets decides sets Legend Resources QoS decision Eviction QoS classes