Service response time
Article ID: 266528
Updated On:
Products
Issue/Introduction
We need to measure the response time of a service that is critical since it is used by many of our clients.
They tell us that the service that is published in the API Gateway is sometimes taking too long and generates a timeout in their applications
For reference, the service is as follows:
We want to include an audit to write in a log the start time, the end time, and the total duration of the service in the API Gateway
Is there a variable available with the total duration of the policy and current time?
Is there a recommended way to measure it?
Environment
Release : 10.0
Resolution
Gateway performance we can add audit in policies to determine were the delays are
Example for Route issue Add Audit Detail assertion before route
Policy#: ${assertion.numberstr}; assertion.latency=${assertion.latency.ms}; elapsedTime=${request.elapsedTime}
ROUTE ASSERTION
Add Audit Detail assertion after route
Policy#: ${assertion.numberstr}; assertion.lat=${assertion.latency.ms}; backend.lat=${httpRouting.latency}; ElapsedTime=${request.elapsedTime}; ClientPort: ${request.tcp.remotePort}; ClientIP: ${request.tcp.remoteHost}; URI ${request.http.uri}; Method: ${request.http.method}; Size: ${request.mainpart.size}; GatewayTime: ${request.time}: Http-Reascode: ${httpRouting.reasonCode} Http-Status: ${response.http.status}
The context variables can be put in the beginning of the policy and end to determine total time
Feedback
