Allow configuring the process startup method to be used for creating thespian actors.#1975
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fressi-elastic merged 22 commits intoelastic:masterfrom Aug 19, 2025
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The main reason for this is that to be able to use threads in subprocesses we have to prevemt using any kind of fork function.
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Pull Request Overview
This PR modifies the Rally actor system to use spawn instead of fork for subprocess creation, enabling thread usage in subprocesses. The main changes include:
- Adding process startup method configuration and validation
- Enhanced actor system detection and bootstrapping logic
- Comprehensive test coverage for the new functionality
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| esrally/actor.py | Core implementation adding process startup method support, improved type annotations, and enhanced actor system detection |
| esrally/rally.py | Integration of process startup method configuration validation and actor system setup |
| esrally/types.py | Added new configuration keys for actor process startup method |
| tests/actor_test.py | Comprehensive test suite covering all actor system bootstrap scenarios and configurations |
| pyproject.toml | Added mypy override for the actor module |
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LGTM. I've left some minor comments and questions, but nothing blocking.
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…reating thespian actors. (elastic#1975)" This reverts commit 81abfc3.
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The main purpose for this is to be able to prevent using the fork function to be able to use threads for multipart downloads.