Add semaphore support for limiting concurrent updates (#1670)

* Add semaphore support for limiting concurrent updates Introduce a semaphore-based mechanism to control the number of concurrent tasks in polling mode when `handle_as_tasks=True`. Added the `tasks_concurrency_limit` parameter to `start_polling()` and `run_polling()`, preventing potential memory exhaustion during high update loads. * fix: update variable name for clarity in semaphore creation * Update aiogram/dispatcher/dispatcher.py Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2026-04-08 16:37:47 +00:00 · 2025-04-12 23:30:02 +03:00 · 2025-04-12 23:30:02 +03:00 · da3e84d4cf
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+Fix memory exhaustion in polling mode with concurrent updates.
+
+Added a semaphore-based solution to limit the number of concurrent tasks when using :code:`handle_as_tasks=True` in polling mode.
+This prevents Out of Memory (OOM) errors in memory-limited containers when there's a large queue of updates to process.
+You can now control the maximum number of concurrent updates with the new :code:`tasks_concurrency_limit`
+parameter in :code:`start_polling()` and :code:`run_polling()` methods.