我在Flask上创建站点。与服务器的所有通信都通过WebSockets进行。当我使用gunicorn与TCP/IP:
gunicorn --worker-class socketio.sgunicorn.GeventSocketIOWorker chat:app --bind=127.0.0.1:8800
一切都很好。但是当我使用Unix套接字文件时:
gunicorn --worker-class socketio.sgunicorn.GeventSocketIOWorker chat:app -b unix:///var/sockets/gunicorn.sock
我在日志中有错误:
[root@localhost legalize]# gunicorn --worker-class socketio.sgunicorn.GeventSocketIOWorker chat:app -b unix:///var/sockets/gunicorn.sock
2015-04-03 13:32:26 [25392] [INFO] Starting gunicorn 18.0
2015-04-03 13:32:26 [25392] [INFO] Listening at: unix:/var/sockets/gunicorn.sock (25392)
2015-04-03 13:32:26 [25392] [INFO] Using worker: socketio.sgunicorn.GeventSocketIOWorker
2015-04-03 13:32:26 [25397] [INFO] Booting worker with pid: 25397
FAILED to start flash policy server: [Errno -2] Name or service not known: ('/', 10843)
FAILED to start flash policy server: [Errno -2] Name or service not known: ('/', 10843)
FAILED to start flash policy server: [Errno -2] Name or service not known: ('/', 10843)
如何修复此错误?
Project gevent-socketio
(处理Socket.IO协议的Flask SocketIO的依赖项)启动用于Flash传输的辅助web服务器。此服务器在与主服务器相同的主机上侦听,但位于端口10843。显然,当主服务器侦听unix套接字时,该逻辑会失败。
您需要提供Flash支持吗?如果没有,我建议您通过将环境变量POLICY_SERVER
设置为非null值来完全禁用它。以下是禁用策略服务器的逻辑,以防您好奇:https://github.com/abourget/gevent-socketio/blob/668d11edbd62052cde1583be1e1d0512c930f16d/socketio/sgunicorn.py#L43-L47