asyncio.exceptions.CancelledError

[JerryHuang-LE]

I am using the Quart framework, and after bumping up the dependencies version (Quart-schema), we are getting some weird issues.
Not sure if it is related to Quart or not. Can someone give me some suggestions please? Thanks

 File "/app/.venv/lib/python3.11/site-packages/aiohttp/client.py", line 536, in _request
    conn = await self._connector.connect(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/aiohttp/connector.py", line 540, in connect
    proto = await self._create_connection(req, traces, timeout)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/aiohttp/connector.py", line 901, in _create_connection
    _, proto = await self._create_direct_connection(req, traces, timeout)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.11/site-packages/aiohttp/connector.py", line 1152, in _create_direct_connection
    hosts = await asyncio.shield(host_resolved)

  File "/app/lere/model/personalisation/hot_leads/sticky_hot_leads.py", line 39, in get_hot_leads_offers
    hot_leads = await get_cache_for_hot_leads(user_id)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lere/logs/logger.py", line 262, in async_wrapper
    value = await logging_logic.execute_async()
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lere/logs/logger.py", line 248, in execute_async
    self.result = await async_function(*self.args, **self.kwargs)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lere/model/personalisation/hot_leads/cache.py", line 22, in get_cache_for_hot_leads
    await asyncio.to_thread(
  File "/usr/local/lib/python3.11/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
asyncio.exceptions.CancelledError

  File "/app/lere/model/personalisation/hot_leads/cache.py", line 22, in get_cache_for_hot_leads
    await asyncio.to_thread(
  File "/usr/local/lib/python3.11/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
asyncio.exceptions.CancelledError

But sorry about that, i have no idea how to re-produce them as it happened randomly. Sometimes it could happen when the service keep running for 2 hours, sometimes it could get those errors in half hour. :-(

Environment:

• Python version: 3.11.3
• Quart version: 0.18.4

[pgjones]

Most of the stack trace seems unrelated to Quart/Quart-Schema, are you sure nothing else changed?

[JerryHuang-LE]

Most of the stack trace seems unrelated to Quart/Quart-Schema, are you sure nothing else changed?

Actually, when i bumped up the Quart-schema, some dependencies bumps up together (not sure if Quart-schema needs the newer version of these dependencies or not). I think the only way is reverting the dependencies one by one, and then test it one by one.