在线部署的输出定义为：

def output(results, data_args):
......
    bf = StringIO()
    imgOut = Image.fromarray(imgOut[:, :, 0].astype(np.uint8))
    buffer = cStringIO.StringIO()
    imgOut.save(buffer, format="png")
    base64_data = base64.b64encode(buffer.getvalue()).decode()
    print('=====================')
    print(base64_data)
    print('=====================')
    print('Finished')
    return {"outImg": base64_data}

根据以下前四行输出可知output函数应该已经完整运行完了，同时测试过输出的base64取出后可以也正确解码...

但是抛出loseConnection我在想是不是算的时间太长了导致连接超时还是什么的....算的时间应该超过30秒了....

=====================
Base64
=====================
Finished
[2020-05-18 23:*:*,815.815] app_server.py [line:*] INFO request cost:*.75 sec
WSGI application error
Unhandled Error
Traceback (most recent call last):
  File "app_server.py", line 183, in 
    reactor.run()
  File "/usr/local/lib/python2.7/dist-packages/twisted/internet/base.py", line 1261, in run
    self.mainLoop()
  File "/usr/local/lib/python2.7/dist-packages/twisted/internet/base.py", line 1270, in mainLoop
    self.runUntilCurrent()
---  ---
  File "/usr/local/lib/python2.7/dist-packages/twisted/internet/base.py", line 869, in runUntilCurrent
    f(*a, **kw)
  File "/usr/local/lib/python2.7/dist-packages/twisted/web/wsgi.py", line 521, in wsgiError
    self.request.loseConnection()
  File "/usr/local/lib/python2.7/dist-packages/twisted/web/http.py", line 1505, in loseConnection
    self.channel.loseConnection()
exceptions.AttributeError: 'NoneType' object has no attribute 'loseConnection'