uWSGI crashing but still gets the job done !!

[radurambet]

Update : It works as expected with Debian 10 ! No 11/12
That means you have to use backports for Wireguard / Batman-adv or whatever setup you have !

---

For whaterver reason uWSGI is crashing and creating CPU usage and also monster log. I dont' really get how come that it gets the job done in updating Wireuard server. Somehow I would have never noticed unless the machine wouldn't be so underpowered (2core Atom) and whenever something goes wrong the CPU usage spikes.

Its funny that it works still throws errors ! Somehow it restarts and stays in the loop !

Any ideas . Running Debian 12 and VxLAN maybe that is "too new" . it may happen sometimes. Second: I am running with self signed certificate and openwisp2_wireguard_curl_insecure: true

*** Starting uWSGI 2.0.24 (64bit) on [Sun Mar  3 23:28:50 2024] ***
compiled with version: 12.2.0 on 03 March 2024 17:30:05
os: Linux-6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01)
nodename: server
machine: x86_64
clock source: unix
detected number of CPU cores: 2
current working directory: /opt/wireguard-openwisp/wireguard-1
writing pidfile to openwisp2_wireguard_flask_app.pid
detected binary path: /opt/wireguard-openwisp/wireguard-1/env/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
setgid() to 1001
setuid() to 1001
chdir() to /opt/wireguard-openwisp/wireguard-1
your processes number limit is 2399
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on 0.0.0.0:8081 fd 3
uwsgi socket 0 bound to UNIX address openwisp2_wireguard_flask_app.sock fd 6
Python version: 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0]
Python main interpreter initialized at 0x7f4e0c160018
python threads support enabled
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 5 seconds
mapped 250128 bytes (244 KB) for 4 cores
*** Operational MODE: preforking+threaded ***
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI master process (pid: 2814)
spawned uWSGI worker 1 (pid: 2815, cores: 2)
spawned uWSGI worker 2 (pid: 2816, cores: 2)
spawned uWSGI http 1 (pid: 2817)
Traceback (most recent call last):
  File "/opt/wireguard-openwisp/wireguard-1/vpn_updater.py", line 3, in <module>
    from flask import Flask, Response, request
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/__init__.py", line 7, in <module>
    from .app import Flask as Flask
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/app.py", line 28, in <module>
    from . import cli
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/cli.py", line 18, in <module>
    from .helpers import get_debug_flag
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/helpers.py", line 16, in <module>
    from werkzeug.urls import url_quote
ImportError: cannot import name 'url_quote' from 'werkzeug.urls' (/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/werkzeug/urls.py)
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. GAME OVER ***
SIGINT/SIGTERM received...killing workers...
Exception ignored in: <module 'threading' from '/usr/lib/python3.11/threading.py'>
Traceback (most recent call last):
  File "/usr/lib/python3.11/threading.py", line 1534, in _shutdown
    def _shutdown():

KeyboardInterrupt:
Traceback (most recent call last):
  File "/opt/wireguard-openwisp/wireguard-1/vpn_updater.py", line 3, in <module>
    from flask import Flask, Response, request
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/__init__.py", line 7, in <module>
    from .app import Flask as Flask
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/app.py", line 28, in <module>
    from . import cli
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/flask/cli.py", line 14, in <module>
    import click
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/click/__init__.py", line 7, in <module>
    from .core import Argument as Argument
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/click/core.py", line 2012, in <module>
    class Parameter:
  File "/opt/wireguard-openwisp/wireguard-1/env/lib/python3.11/site-packages/click/core.py", line 2101, in Parameter
    shell_complete: t.Optional[
                    ^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 341, in inner
    return cached(*args, **kwds)
           ^^^^^^^^^^^^^^^^^^^^^
gateway "uWSGI http 1" has been buried (pid: 2817)
  File "/usr/lib/python3.11/typing.py", line 463, in __getitem__
    return self._getitem(self, parameters)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 685, in Optional
    return Union[arg, type(None)]
           ~~~~~^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 341, in inner
    return cached(*args, **kwds)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 1352, in __hash__
    return hash((self.__origin__, self.__args__))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 877, in __hash__
    def __hash__(self):

KeyboardInterrupt
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. GAME OVER ***
OOPS ! failed loading app in worker 1 (pid 2815)
Sun Mar  3 23:28:52 2024 - need-app requested, destroying the instance...
OOPS ! failed loading app in worker 2 (pid 2816)
Sun Mar  3 23:28:52 2024 - need-app requested, destroying the instance...
goodbye to uWSGI.
VACUUM: unix socket openwisp2_wireguard_flask_app.sock removed.
[uWSGI] getting INI configuration from uwsgi.ini
*** Starting uWSGI 2.0.24 (64bit) on [Sun Mar  3 23:28:54 2024] ***