ouvrier céleri raise chaussette setsockopt TCP_SYNCNT [Errno 22] Invalid argument

Question

J'utilise celery avec rabbitmq, mais je reçois récemment cette erreur sock.setsockopt(SOL_TCP, opt, val), [Errno 22] Invalid argument,
détail,

{1: 1, 2: 16396, 3: 0, 4: 60, 5: 10, 6: 9, 7: 0, 8: 30, 9: 0, 10: 81059, 12: 1} 
(6, 1, 1) 
(6, 2, 16396) 
(6, 3, 0) 
(6, 4, 60) 
(6, 5, 10) 
(6, 6, 9) 
(6, 7, 0) 
Traceback (most recent call last): 
    File "<string>", line 1, in <module> 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/celery/app/task.py", line 535, in apply_async 
    **options 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/celery/app/base.py", line 737, in send_task 
    amqp.send_task_message(P, name, message, **options) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/celery/app/amqp.py", line 558, in send_task_message 
    **properties 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/messaging.py", line 181, in publish 
    exchange_name, declare, 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 527, in _ensured 
    errback and errback(exc, 0) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/contextlib.py", line 35, in __exit__ 
    self.gen.throw(type, value, traceback) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 419, in _reraise_as_library_errors 
    sys.exc_info()[2]) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 414, in _reraise_as_library_errors 
    yield 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 515, in _ensured 
    reraise_as_library_errors=False, 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 405, in ensure_connection 
    callback) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/utils/functional.py", line 333, in retry_over_time 
    return fun(*args, **kwargs) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 261, in connect 
    return self.connection 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 802, in connection 
    self._connection = self._establish_connection() 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/connection.py", line 757, in _establish_connection 
    conn = self.transport.establish_connection() 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/kombu/transport/pyamqp.py", line 130, in establish_connection 
    conn.connect() 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/amqp/connection.py", line 294, in connect 
    self.transport.connect() 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/amqp/transport.py", line 122, in connect 
    self.socket_settings, self.read_timeout, self.write_timeout, 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/amqp/transport.py", line 174, in _init_socket 
    self._set_socket_options(socket_settings) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/site-packages/amqp/transport.py", line 205, in _set_socket_options 
    self.sock.setsockopt(SOL_TCP, opt, val) 
    File "/app/pyenv/versions/2.7.11/lib/python2.7/socket.py", line 228, in meth 
    return getattr(self._sock,name)(*args) 
kombu.exceptions.OperationalError: [Errno 22] Invalid argument 

(6, 7, 0) est la sortie de print(SOL_TCP, opt, val) qui ajouter à _set_socket_options

après avoir fait référence à _socket.pi, je reçois ceci:

• 6, SOL_TCP = 6
• 7, TCP_SYNCNT = 7 (je pense ...)
• 0, val

que tout ce que je sais, je suppose qu'il a quelque chose avec le réglage du système, il fonctionne bien avec d'autres systèmes avec le même code et le même package.Mais je connais peu de choses sur TCP_SYNCNT, toute aide est appréciée!

BTW, Voici mes environnements

• céleri 4.0.2 (latentcall)
• rabbitmq-server-3.6.6-1.el6.noarch
• Erlang-19.1.6-1. el6.x86_64
• CentOS release 6.4 (final)
• python2.7.11 avec pyenv

pip gel

amqp==2.1.4 
billiard==3.5.0.2 
celery==4.0.2 
chardet==3.0.4 
Django==1.10.3 
django-redis==4.8.0 
djangorestframework==3.6.3 
httplib2==0.10.3 
kombu==4.0.2 
netifaces==0.10.6 
psutil==5.2.2 
py==1.4.34 
pyasn1==0.2.3 
pyftpdlib==1.5.2 
pyrabbit==1.1.0 
pytest==3.0.6 
pytz==2017.2 
redis==2.10.5 
rsa==3.4.2 
six==1.10.0 
vine==1.1.3 
xlrd==1.0.0 

Answer 1

résolu par jeu net.ipv4.tcp_syn_retries = 1, quelqu'un mis à 0 qui envoient signifie peut-être jamais syn avant ESTABLISHED.