feat(dirty): add TTIN/TTOU signal support for dynamic worker scaling#3504
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- Remove beta warning from ASGI worker documentation - Add beta warning to Dirty Arbiters documentation - Update README feature list accordingly - Update changelog to reflect stability changes
Add support for SIGTTIN and SIGTTOU signals to the dirty arbiter, allowing dynamic scaling of dirty workers at runtime without restarting gunicorn. Changes: - Add TTIN/TTOU to DirtyArbiter.SIGNALS - Add num_workers instance variable for dynamic count - Add _get_minimum_workers() to enforce app worker constraints - Add signal handlers for TTIN (increase) and TTOU (decrease) - Update manage_workers() to use dynamic count - Add documentation for dynamic scaling - Add unit tests for signal handling - Add Docker integration tests The minimum worker constraint ensures TTOU cannot reduce workers below what apps require (e.g., if an app has workers=3, minimum is 3). Closes #3489
jayaddison
reviewed
Feb 16, 2026
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| """Gunicorn configuration for TTIN/TTOU testing.""" | ||
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| bind = "0.0.0.0:8000" |
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Summary
Changes
num_workersinstance variable for dynamic count_get_minimum_workers()to calculate minimum required workers from app specsmanage_workers()to use dynamic count instead of configUsage
Minimum Worker Constraint
The dirty arbiter will not decrease below the minimum workers required by app configurations. For example, if an app has
workers = 3, you cannot scale below 3 dirty workers.Closes #3489