Dynamic Rate Limiting for Backend Operation Execution
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Solution Overview
Problem
Backend systems with limited resources face performance degradation and availability issues due to excessive load from concurrent operations, leading to inefficient processing and potential system overload, even for simple operations, as they struggle to scale with heavy user requests.
Innovation Solution
Implementing a dynamic operations registry that tracks and limits the execution of operations based on predefined thresholds and quotas for user accounts and group accounts, allowing for rate limiting and load balancing by registering or rejecting operations based on available resource capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the backend system accepts all operation requests from users, then user service availability is improved, but system resource overload occurs and performance degrades
Solution Approach 1:
The patent implements dynamic rate limiting that adjusts operation execution limits based on current system load conditions. The rate limiter monitors backend system capacity and dynamically configures thresholds for allowing or rejecting operations, enabling the system to adaptively balance availability and performance rather than using static limits
Solution Approach 2:
The system employs feedback mechanisms where the rate limiter continuously monitors operation execution metrics and system resource utilization. Based on this feedback, the rate limiting thresholds are dynamically adjusted - when system load is high, limits are tightened; when capacity is available, limits are relaxed, creating a closed-loop control system that maintains optimal performance
2Productivity
If the backend system executes heavy operations concurrently, then user request processing capacity is improved, but resource consumption exceeds system capacity and causes overload
Solution Approach 1:
The rate limiting mechanism implements partial action by selectively allowing only a portion of incoming operations to execute based on current system capacity. Instead of accepting all requests or rejecting all requests, the system permits a controlled subset of operations that the backend can handle, preventing resource exhaustion while still providing service to multiple users
Solution Approach 2:
The system changes operational parameters by dynamically adjusting rate limiting thresholds based on real-time system state. When resource consumption approaches capacity limits, the system modifies the acceptable operation rate parameters; when resources are abundant, it increases permitted operation rates, thereby optimizing resource utilization across varying load conditions
3Productivity
If the backend system processes multiple operations in parallel, then overall throughput is improved, but individual operation execution time increases due to resource contention
Solution Approach 1:
The rate limiting system segments the operation stream by applying different rate limits to different operation types, users, or time periods. This segmentation allows the system to prioritize time-sensitive operations while maintaining higher throughput for less time-critical operations, thereby reducing average execution time while preserving overall throughput
Data Source
AI summary
The present disclosure relates to computer-implemented methods, software, and systems for dynamic rate limiting of execution of operation. A request from a user account for execution of an operation by an application service is. A total number of operations registered at an operations registry is determined. In response to determining that all of registered operations exceeds a first threshold value, a number of registered operations associated with a group account of the user account is determined. If it is determined that (i) the total number of registered operations exceeds a first threshold value and that the number of registered operations associated with the group account does not exceed a second threshold value or (ii) if it is determined that the total number of registered operations does not exceed the first threshold value, the operation is registered at the operations registry. An instruction to execute the registered operation is sent.