我有一个flask应用程序,在命令行上运行时可以正常工作,但是当它通过uwsgi运行时,它不能正确响应请求,或者工作线程不能正常工作。我重写了一个简单的概念证明/失败程序,它演示了以下问题:
from datetime import datetime
from threading import Event, Thread
from flask import Flask
class JobManager:
def __init__(self):
self.running = False
self.event = Event()
def start(self):
self.running = True
while self.running:
print("Processing Job at", datetime.now().strftime('%c'))
self.event.clear()
self.event.wait(5)
if self.event.is_set():
print("Interrupted by request!")
def stop(self):
self.running = False
self.event.set()
app = Flask(__name__)
jobs = JobManager()
t = Thread(target=jobs.start)
t.start()
@app.route('/')
def hello_world():
global jobs
jobs.event.set()
return "I'm alive at " + datetime.now().strftime('%c')
if __name__ == '__main__':
app.run()
我希望呼叫/路由将打印“被请求中断!”在控制台上,但它只是挂起,即使作业应该在单独的线程中运行。
我的uwsgi配置是:
[uwsgi]
module = app:app
master = true
processes = 5
threads = 2
socket = 0.0.0.0:5000
protocol = http
reload-mercy = 5
worker-reload-mercy = 5
die-on-term = true
enable-threads = true
thunder-lock = true
logto = /home/user/dev/flask-thread/uwsgi_log.log
logto2 = /home/user/dev/flask-thread/uwsgi2_log.log
env = PATH=/home/user/dev/flask-thread/env/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
然后我在Venv中运行uwsgi:
uwsgi --ini uwsgi-test.ini
如果我用的话就行了
python app.py
并使用内置的flask开发服务器。
我唯一的猜测是,这与吉尔与UWSGI的互动有关,但这是一个疯狂的猜测,我不知道如何阻止。