Generate Gatling Report from Multiple Simulation Log Files with version 3.13.5

[ramanbatra]

I’m trying to generate a Gatling report from multiple simulation log files using the Maven plugin with Gatling version 3.13.5, but encountering limitations with the current approach.

Command used:
mvn gatling:test -Dgatling.reportsOnly=simulationLogs

Directory structure:
simulationLogs/
├── simulation-1.log
├── simulation-2.log
└── simulation-3.log

Issue:
The reportsOnly parameter appears to expect a single simulation.log file, but I have multiple simulation log files that I want to combine into a single consolidated report.

Current behavior:
The command fails or only processes one log file with an error Caused by: java.lang.IllegalArgumentException: requirement failed: Could not locate log file for simulationLogs.

[slandelle]

This is not supported.

Distributed load tests are only supported in Gatling Enterprise.

[ramanbatra]

I have a setup with v3.10.x and with its gatling-highcharts bundle I am able to do it.

But with v3.13.x I don’t see it’s libraries in the zip bundle which I can leverage to continue with my current setup.

Earlier zip file contains the required libraries inside lib package but with v3.11.x it’s removed. Is there any way to download it?

[ramanbatra]

Hi @slandelle,

To confirm, is there absolutely no way to achieve this in Gatling 3.13.5, even with manual workarounds?

In Gatling 3.10.5, we could merge multiple simulation.log files (which were text-based) and generate a single unified report. Since 3.13+ switched to binary format, I understand the direct approach no longer works.

Are there any alternative approaches that could help achieve similar functionality for combining multiple simulation results into one report?

Thanks!

[slandelle]

Hi,

Just like I wrote in my previous message, distributed tests is a Gatling Enterprise feature. It’s not supported in the free version and not something we can help with.