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Merge pull request #4255 from omChauhanDev/fix/async-gc-collect

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PipelineRunner: make _gc_collect async
This commit is contained in:
Aleix Conchillo Flaqué
2026-04-09 12:09:38 -07:00
committed by GitHub
parent c4320e7f07 b010dd58d2
commit 981b7bdcb7
2 changed files with 4 additions and 3 deletions
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1
changelog/4255.fixed.md Normal file
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@@ -0,0 +1 @@
- Fixed `PipelineRunner._gc_collect()` blocking the event loop by running `gc.collect()` synchronously. Now offloaded via `asyncio.to_thread` to avoid stalling concurrent pipeline tasks.

6
src/pipecat/pipeline/runner.py
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@@ -90,7 +90,7 @@ class PipelineRunner(BaseObject):
await self._sig_task await self._sig_task
if self._force_gc: if self._force_gc:
self._gc_collect() await self._gc_collect()
logger.debug(f"Runner {self} finished running {task}") logger.debug(f"Runner {self} finished running {task}")
@@ -136,8 +136,8 @@ class PipelineRunner(BaseObject):
logger.warning(f"Interruption detected. Cancelling runner {self}") logger.warning(f"Interruption detected. Cancelling runner {self}")
await self.cancel() await self.cancel()
def _gc_collect(self): async def _gc_collect(self):
"""Force garbage collection and log results.""" """Force garbage collection and log results."""
collected = gc.collect() collected = await asyncio.to_thread(gc.collect)
logger.debug(f"Garbage collector: collected {collected} objects.") logger.debug(f"Garbage collector: collected {collected} objects.")
logger.debug(f"Garbage collector: uncollectable objects {gc.garbage}") logger.debug(f"Garbage collector: uncollectable objects {gc.garbage}")