我正在使用VSCode进行web开发，使用框架Django。调试Django没有问题，但是当我尝试使用Celery时 - 调试器dos不会在断点处停止。我使用这个配置来运行Celery和Celery Beat：
{
"name": "Beat",
"type": "python",
"request": "launch",
"pythonPath": "/home/MyName/job/MyProject/venv/bin/python",
"program": "/home/MyName/job/MyProject/venv/bin/celery",
"console": "integratedTerminal",
"args": [
"-A",
"bgp",
"beat",
"-l",
"info"
]
},
{
"name": "Celery",
"type": "python",
"request": "launch",
"pythonPath": "/home/MyName/job/MyProject/venv/bin/python",
"program": "/home/MyName/job/MyProject/venv/bin/celery",
"console": "integratedTerminal",
"args": [
"-A",
"bgp",
"worker",
"-l",
"info",
"-Q",
"ssh",
"--concurrency=1",
]
},
当我运行Celery时 - 我得到了这个追溯：
[2018-11-29 13:18:34,112: CRITICAL/MainProcess] Unrecoverable error: RuntimeError('already started',)
Traceback (most recent call last):
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/worker/worker.py", line 205, in start
self.blueprint.start(self)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/bootsteps.py", line 119, in start
step.start(parent)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/bootsteps.py", line 369, in start
return self.obj.start()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/concurrency/base.py", line 131, in start
self.on_start()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/concurrency/prefork.py", line 112, in on_start
**self.options)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/concurrency/asynpool.py", line 432, in __init__
super(AsynPool, self).__init__(processes, *args, **kwargs)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/pool.py", line 1007, in __init__
self._create_worker_process(i)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/concurrency/asynpool.py", line 449, in _create_worker_process
return super(AsynPool, self)._create_worker_process(i)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/pool.py", line 1116, in _create_worker_process
w.start()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/process.py", line 124, in start
self._popen = self._Popen(self)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/context.py", line 333, in _Popen
return Popen(process_obj)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/popen_fork.py", line 24, in __init__
self._launch(process_obj)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/billiard/popen_fork.py", line 72, in _launch
self.pid = os.fork()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/_pydev_bundle/pydev_monkey.py", line 488, in new_fork
_on_forked_process()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/_pydev_bundle/pydev_monkey.py", line 56, in _on_forked_process
pydevd.settrace_forked()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/pydevd.py", line 1723, in settrace_forked
patch_multiprocessing=True,
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/pydevd.py", line 1488, in settrace
stop_at_frame,
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/pydevd.py", line 1536, in _locked_settrace
debugger.connect(host, port) # Note: connect can raise error.
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/_vendored/pydevd/pydevd.py", line 484, in connect
s = start_client(host, port)
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/pydevd_hooks.py", line 125, in <lambda>
_start_client = (lambda h, p: start_client(daemon, h, p))
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/pydevd_hooks.py", line 71, in start_client
sock, start_session = daemon.start_client((host, port))
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/daemon.py", line 208, in start_client
with self.started():
File "/usr/local/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/daemon.py", line 109, in started
self.start()
File "/home/MyName/job/MyProject/venv/lib/python2.7/site-packages/ptvsd/daemon.py", line 144, in start
raise RuntimeError('already started')
RuntimeError: already started
[2018-11-29 13:18:34,158: INFO/MainProcess] Connected to amqp://project:**@127.0.0.1:5672/project
[2018-11-29 13:18:34,210: INFO/MainProcess] mingle: searching for neighbors
[2018-11-29 13:18:35,292: INFO/MainProcess] mingle: all alone
[2018-11-29 13:18:35,353: WARNING/MainProcess] /home/MyName/job/MyProject/venv/lib/python2.7/site-packages/celery/fixups/django.py:200: UserWarning: Using settings.DEBUG leads to a memory leak, never use this setting in production environments!
warnings.warn('Using settings.DEBUG leads to a memory leak, never '
[2018-11-29 13:18:35,354: INFO/MainProcess] celery@MyName-vm ready..
芹菜工作正常。但是当我把断点放入任何任务时 - 芹菜线程并没有停止它。我该如何解决？ 我的芹菜版：芹菜[redis] == 4.2.0
您可以尝试将“-P solo”添加到Celery配置的args中。请参阅https://github.com/Microsoft/ptvsd/issues/1046
这是我的Celery配置。它对我来说很合适。
{
"name": "Python: Celery",
"type": "python",
"request": "launch",
"module": "celery",
"console": "integratedTerminal",
"args": [
"-A",
"tsbc",
"worker",
"-l",
"info",
"-P",
"solo",
]
}