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gevent
gevent.timeout.Timeout: 0.0 seconds
- gevent version: 23.9.1 from PyPi
- Python version: python 3.11.4 from docker image python:3.11.4-bookworm
- Operating System: Debian GNU/Linux 12 (bookworm) from docker image python:3.11.4-bookworm
Description:
I am running django+gunicorn with gevent and getting seemingly random gevent timeouts with a timeout length of 0.0 seconds. It's unclear to me why this timeout is being set. Any help would be appreciated!
Exception ignored in: <finalize object at 0x7f7e1a8349a0; dead>
--
| Traceback (most recent call last):
| File "/usr/local/lib/python3.11/weakref.py", line 590, in __call__
| return info.func(*info.args, **(info.kwargs or {}))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/usr/local/lib/python3.11/site-packages/urllib3/connectionpool.py", line 1179, in _close_pool_connections
| conn = pool.get(block=False)
| ^^^^^^^^^^^^^^^^^^^^^
| File "/usr/local/lib/python3.11/queue.py", line 182, in get
| self.not_full.notify()
| File "/usr/local/lib/python3.11/threading.py", line 369, in notify
| if not self._is_owned():
| ^^^^^^^^^^^^^^^^
| File "/usr/local/lib/python3.11/threading.py", line 282, in _is_owned
| if self._lock.acquire(False):
| ^^^^^^^^^^^^^^^^^^^^^^^^^
| File "/usr/local/lib/python3.11/site-packages/gevent/thread.py", line 132, in acquire
| sleep()
| File "/usr/local/lib/python3.11/site-packages/gevent/hub.py", line 159, in sleep
| waiter.get()
| File "src/gevent/_waiter.py", line 143, in gevent._gevent_c_waiter.Waiter.get
| File "src/gevent/_waiter.py", line 154, in gevent._gevent_c_waiter.Waiter.get
| File "src/gevent/_greenlet_primitives.py", line 61, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
| File "src/gevent/_greenlet_primitives.py", line 61, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
| File "src/gevent/_greenlet_primitives.py", line 65, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
| File "src/gevent/_gevent_c_greenlet_primitives.pxd", line 35, in gevent._gevent_c_greenlet_primitives._greenlet_switch
| gevent.timeout.Timeout: 0.0 seconds
What I've run:
Not able to create a MRE unfortunately, but this is how I run gunicorn.
exec gunicorn <my_app> \
--name my_app \
--workers 3 \
--worker-class gevent \
--timeout 120 \
--bind=unix:/usr/var/run/gunicorn.sock \
--log-level=warning \
--log-file=-
I'm seeing something similar in a Gunicorn / Flask / SQLAlchemy / PyMySQL setup on Python 3.11.7. Package versions:
Flask==2.2.5
gevent==23.9.1
greenlet==3.0.1
gunicorn==21.2.0
PyMySQL==1.1.0
SQLAlchemy==2.0.23
Stack trace is below:
Exception during reset or similar
Traceback (most recent call last):
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/sqlalchemy/pool/base.py", line 988, in _finalize_fairy
fairy._reset(
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/sqlalchemy/pool/base.py", line 1438, in _reset
pool._dialect.do_rollback(self)
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/sqlalchemy/engine/default.py", line 692, in do_rollback
dbapi_connection.rollback()
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/pymysql/connections.py", line 488, in rollback
self._read_ok_packet()
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/pymysql/connections.py", line 448, in _read_ok_packet
pkt = self._read_packet()
^^^^^^^^^^^^^^^^^^^
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/pymysql/connections.py", line 739, in _read_packet
packet_header = self._read_bytes(4)
^^^^^^^^^^^^^^^^^^^
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/pymysql/connections.py", line 779, in _read_bytes
data = self._rfile.read(num_bytes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/socket.py", line 706, in readinto
return self._sock.recv_into(b)
^^^^^^^^^^^^^^^^^^^^^^^
File "/path/to/some-virtualenv-py3.11/lib/python3.11/site-packages/gevent/_socketcommon.py", line 696, in recv_into
self._wait(self._read_event)
File "src/gevent/_hub_primitives.py", line 317, in gevent._gevent_c_hub_primitives.wait_on_socket
File "src/gevent/_hub_primitives.py", line 322, in gevent._gevent_c_hub_primitives.wait_on_socket
File "src/gevent/_hub_primitives.py", line 304, in gevent._gevent_c_hub_primitives._primitive_wait
File "src/gevent/_hub_primitives.py", line 46, in gevent._gevent_c_hub_primitives.WaitOperationsGreenlet.wait
File "src/gevent/_hub_primitives.py", line 46, in gevent._gevent_c_hub_primitives.WaitOperationsGreenlet.wait
File "src/gevent/_hub_primitives.py", line 55, in gevent._gevent_c_hub_primitives.WaitOperationsGreenlet.wait
File "src/gevent/_waiter.py", line 154, in gevent._gevent_c_waiter.Waiter.get
File "src/gevent/_greenlet_primitives.py", line 61, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
File "src/gevent/_greenlet_primitives.py", line 61, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
File "src/gevent/_greenlet_primitives.py", line 65, in gevent._gevent_c_greenlet_primitives.SwitchOutGreenletWithLoop.switch
File "src/gevent/_gevent_c_greenlet_primitives.pxd", line 35, in gevent._gevent_c_greenlet_primitives._greenlet_switch
gevent.timeout.Timeout: 0.0 seconds
Any insight is much appreciated!
