How do I get the failed request and response body/header data from Azure Load Testing.

Satya Palathirthapu 0 Reputation points
2025-02-21T13:23:47.3+00:00

Dear All,

I am inquiring about the process for obtaining the data related to a failed response, specifically the body and header data. I have reviewed the Azure documentation and adhered to the outlined procedures; however, I am still unable to locate the raw data for the failed responses, including both the body and header.

The steps I have undertaken include:

  1. Creating a new test and executing it as the initial test.
  2. Running the test in debug mode.
  3. Utilizing a single engine and executing the test for a duration of five minutes.
  4. After the test, I downloaded the logs, CSV files, and results folders.

Despite these efforts, I have not been successful in retrieving the body and header data for the failed request/response.

Please let me know if I'm missing something here.

Azure Load Testing
Azure Load Testing

An Azure service that enables developers and testers to generate insights on how to improve the performance, scalability, and capacity usage of their application

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  1. Christos Panagiotidis 3,551 Reputation points
    2026-07-20T15:01:46.31+00:00

    Azure stores detailed debug artifacts separately. The normal Results CSV follows the JMeter CSV format and contains fields such as response code, response message, URL, timing, and failure message—not full request or response bodies.

    Open the exact run and confirm Debug mode. Export that run’s results, then inspect the per-engine debug files in its storage container rather than only the CSV or worker log. Debug mode captures request and response data only for failed application requests, so successful samples will not contain bodies. A failure that occurs before an HTTP sample is sent, such as script loading, DNS, or missing-file failure, also has no HTTP response to capture. Re-run with one failing sampler, one engine, and under ten minutes. If the debug artifacts are absent for a genuine failed HTTP response, preserve the run ID and raise a Load Testing support case.

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