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APP-5362 : feat: integrate uvloop for improved asyncio performance #179

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Merged
merged 8 commits into from
Feb 14, 2025
Merged

APP-5362 : feat: integrate uvloop for improved asyncio performance #179

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946ac4e
feat: integrate uvloop for improved asyncio performance
TechyMT Feb 10, 2025
e3a0b1e
feat: add uvloop integration for improved asyncio performance across …
TechyMT Feb 10, 2025
1151d46
refactor: remove uvloop integration from various files
TechyMT Feb 11, 2025
1d24579
test: add unit tests for event loop implementations and performance c…
TechyMT Feb 11, 2025
b12b5d0
refactor: clean up whitespace and formatting in event loop tests
TechyMT Feb 11, 2025
92f2fd8
test: simplify event loop tests by removing unnecessary assertions an…
TechyMT Feb 11, 2025
381c4fe
refactor: add whitespace for improved readability in decorators module
TechyMT Feb 11, 2025
6036b4a
refactor: remove obsolete event loop tests and related imports
TechyMT Feb 11, 2025
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2 changes: 2 additions & 0 deletions application_sdk/worker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,14 @@
import threading
from typing import Any, List, Sequence

import uvloop
from temporalio.types import CallableType
Comment on lines +11 to 12
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⚠️ Potential issue

Fix potential thread safety issues with uvloop initialization.

Setting the event loop policy at module level can lead to race conditions when using threading. The worker creates daemon threads that run their own event loops, which could conflict with the global policy setting.

Move the uvloop initialization into the worker thread:

-asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())

 class Worker:
     async def start(self, daemon: bool = False, *args: Any, **kwargs: Any) -> None:
         if daemon:
             worker_thread = threading.Thread(
-                target=lambda: asyncio.run(self.start(daemon=False)), daemon=True
+                target=lambda: self._run_worker_with_uvloop(), daemon=True
             )
             worker_thread.start()
             return

+    def _run_worker_with_uvloop(self):
+        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
+        asyncio.run(self.start(daemon=False))

Also applies to: 18-19


from application_sdk.clients.temporal import TemporalClient
from application_sdk.common.logger_adaptors import get_logger

logger = get_logger(__name__)
asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
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Setting the event loop policy sets the event loop at all the asyncio instances in the application sdk and in the apps, hence decided to keep it here as worker is used in all the apps



class Worker:
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