Understanding API Manegment Performance

Question

Hello,

May i understand the performance issues here for API manegment consumption plan

The main puprpose of this APIs to connect Meta webhook to Azure logic App for simple chatting application..

while almost times total requests does not exceed 100, duration exceeded 10 seconds

Answer 1

Root Causes

1. Cold Starts in the API Management Consumption Plan
   • The Consumption Plan operates on a serverless model, which spins up resources on-demand. This can lead to cold start delays, especially if there are infrequent or intermittent requests.
2. Backend Latency
   • Azure Logic Apps may introduce delays due to:
   • Complex or stateful workflows.
   • External dependencies, such as invoking Meta Webhook or other APIs.
3. Consumption Plan Limitations
   • The Consumption Plan is cost-effective but not optimized for low-latency, real-time scenarios like webhook processing. It enforces rate limits and concurrent request caps that may impact performance.
4. Network Latency
   • If the Meta Webhook, API Management, and Azure Logic Apps are in different regions, cross-region latency could contribute to delays.

1. Upgrade API Management Plan

• Transition to a Premium or Dedicated tier, which:
  • Minimizes cold start delays.
    • Provides better scalability and consistent performance for real-time workloads.

2. Optimize Azure Logic App Workflows

• Use stateless workflows to reduce execution overhead.
• Optimize actions and minimize unnecessary steps in the Logic App.
• Evaluate the processing time of each Logic App connector.

3. Ensure Region Consistency

• Confirm that the Meta Webhook, API Management instance, and Azure Logic Apps are in the same Azure region to reduce network latency.

4. Monitor and Troubleshoot Performance

• Use Azure Monitor and Application Insights to:
  • Track the latency of individual components (API Management, Logic Apps, Meta Webhook).
    • Identify bottlenecks in backend processing.

5. Implement Caching Policies

• If applicable, leverage response caching in API Management to reduce backend processing for repeated requests. 1. Upgrade API Management Plan
  • Transition to a Premium or Dedicated tier, which:
    • Minimizes cold start delays.
    • Provides better scalability and consistent performance for real-time workloads.
  2. Optimize Azure Logic App Workflows
  • Use stateless workflows to reduce execution overhead.
  • Optimize actions and minimize unnecessary steps in the Logic App.
  • Evaluate the processing time of each Logic App connector.
  3. Ensure Region Consistency
  • Confirm that the Meta Webhook, API Management instance, and Azure Logic Apps are in the same Azure region to reduce network latency.
  4. Monitor and Troubleshoot Performance
  • Use Azure Monitor and Application Insights to:
    • Track the latency of individual components (API Management, Logic Apps, Meta Webhook).
    • Identify bottlenecks in backend processing.
  5. Implement Caching Policies
  • If applicable, leverage response caching in API Management to reduce backend processing for repeated requests.

Answer 2

@Mohamed Hussein ,

Welcome to the Microsoft Q&A Platform! Thank you for reaching out regarding your query on API Manegment Performance.

We could see from the graph that while the total requests remain low, the duration of backend requests is consistently high, often exceeding 10 seconds. This could happen due to:

1. Cold starts in the API Management Consumption Plan, which spins up resources on demand.
2. Backend delays caused by Azure Logic App workflows or network latency.
3. Limitations of the Consumption Plan, which may not be ideal for low-latency, real-time workloads like webhook processing.

To improve performance, we recommend:

• Upgrading to a Premium or Dedicated plan for reduced cold starts and better scalability.
• Reviewing and optimizing the backend Logic App workflows to minimize delays.
• Ensuring all services are in the same Azure region to reduce network latency.

This might significantly improve response times and overall performance