Client Identification Using Call Stack Tuples for Resource Quotas
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Solution Overview
Problem
Existing computer resource quota systems face challenges in accurately identifying consumers, leading to unfair sharing and delayed enforcement due to communication overhead, and are limited in preventing resource overload, as they often rely on global statuses and hard-coded rate-limiting strategies without real-time visualization.
Innovation Solution
A system and method for identifying clients of computer resources and applying quotas locally, using a combination of service identifiers in call stacks to determine client quotas independently at each gateway, with real-time visualization and enforcement, allowing for customized quotas and immediate decision-making based on local usage statistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple consumers share an IP address, then resource sharing is enabled, but accurate consumer identification becomes difficult leading to unfair quota application
Solution Approach 1:
The patent segments the identification process by using multiple identifier components (IP address, service name, call stack information) rather than relying on a single IP address. This segmentation allows differentiation between multiple consumers sharing the same IP by combining multiple identification dimensions.
Solution Approach 2:
The patent introduces an intermediary identification mechanism that uses service names and call stack information as intermediate identifiers between the IP address and the actual consumer. This intermediary layer enables more precise consumer identification while maintaining the ability to share resources among multiple consumers.
2Reliability
If a central entity collects and disseminates quota statistics, then coordinated quota enforcement is achieved, but communication overhead increases causing measurable delay
Solution Approach 1:
The patent performs preliminary action by having each gateway independently determine client identities and pre-calculate quota compliance status before requests are forwarded to the central entity. This preliminary local processing reduces the need for repeated communication and accelerates quota enforcement decisions.
Solution Approach 2:
The patent merges the quota enforcement function into the gateway layer itself, combining local quota checking capabilities with centralized quota management. This hybrid approach allows gateways to make immediate local decisions while still maintaining coordinated enforcement through the central entity.
3Productivity
If rate-limiting quotas are hard-coded into interfaces, then access rate control is implemented, but flexibility to adjust quotas is reduced and real-time monitoring is unavailable
Solution Approach 1:
The patent implements dynamic quota management where quotas can be adjusted in real-time based on changing conditions. The system moves from static hard-coded rates to dynamic, adaptable quota settings that can respond to varying resource availability and client behavior patterns.
Solution Approach 2:
The patent incorporates feedback mechanisms that provide real-time visibility into quota usage status. This feedback loop enables the system to monitor quota consumption, detect trends, and dynamically adjust quotas based on actual resource utilization and client behavior, making the system both controllable and adaptable.
Data Source
AI summary
A system, method, and apparatus are provided for identifying clients or consumers of one or more controlled resources within a computing environment (e.g., a data center, a computing cluster). The resources may be controlled via the enforcement of quotas, wherein different clients have different quotas for the controlled resource(s). A client associated with a given call to a resource is identified using a tuple formed from identifiers of multiple services in the call stack, such as a first service (e.g., a front-end or user-facing service) and an immediate service (e.g., a final service in the stack prior to receipt of the call at a gateway, broker, or other entity that manages access to the controlled resources).