使用cherryPy时，Ubuntu / web.py在线程中出现异常

Question

我有一个webApp我一直在努力，我注意到每隔一段时间我就会看到错误“线程CP服务器线程中的异常 - *”，其中* =随机线程数。这个错误偶尔会发生，最终会发生锁定Web服务器，阻止它响应请求。

我能够使用CherryPy来支持SSL，使用默认的“hello World”webPy应用程序重现相同的问题。

import web
from web.wsgiserver import CherryPyWSGIServer

# GLOBALS
CherryPyWSGIServer.ssl_certificate = "/.ssl/fpi.crt"
CherryPyWSGIServer.ssl_private_key = "/.ssl/server.key"

urls = (
    '/(.*)', 'Hello',
    )

app = web.application(urls, globals())

class Hello:
    def GET(self, name):
        return 'Hello World'

if __name__ == "__main__":
    app.run()

错误是：

73.220.196.76:63982 - - [27/Nov/2018 06:56:50] "HTTP/1.1 GET /" - 200 OK
73.220.196.76:63982 - - [27/Nov/2018 06:56:50] "HTTP/1.1 GET /favicon.ico" - 200 OK
Exception in thread CP Server Thread-9:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/__init__.py", line 1375, in run
    conn.communicate()
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/__init__.py", line 1269, in communicate
    format_exc())
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/__init__.py", line 811, in simple_response
    self.conn.wfile.sendall("".join(buf))
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/ssl_pyopenssl.py", line 111, in sendall
    *args, **kwargs)
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/ssl_pyopenssl.py", line 61, in _safe_call
    return call(*args, **kwargs)
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/__init__.py", line 913, in sendall
    bytes_sent = self.send(data)
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/ssl_pyopenssl.py", line 115, in send
    *args, **kwargs)
  File "/home/brian_barnes/.local/lib/python2.7/site-packages/web/wsgiserver/ssl_pyopenssl.py", line 77, in _safe_call
    raise socket.error(errnum)
error: -1

环境：Ubuntu 18.04.1 LTS Python 2.7.15rc1 web.py:0.39

有没有人看到这样的问题或知道可能导致它的原因。在webpy.org上阅读时。看来这是版本0.36的一个问题，但应该是好的0.37。我已经考虑过要0.40了，但犹豫不决，因为它还在开发中。

Answer 1

这可能不是一个正确的修复，但我做了以下黑客攻击，问题不再出现在我面前。我仍然在寻找一个更好的解决方案 - 可能完全抛弃CherryPy--但在那之前：

====>在def _safe_call的ssl_pyopenssl.py：替换

raise socket.error(errnum)

同

#### raise socket.error(errnum)
import sys
sys.stderr.write('===> ssl_pyopenssl: ignoring socket error' + str(errnum) + '\n')
return ""
####

以及raise socket.error(-1)和raise wsgiserver.FatalSSLAlert(*e.args)的类似补丁

====>在def sendall的wsgiserver2.py中：插入2行如下：

bytes_sent = self.send(data)
### insert the below two lines
if not bytes_sent: # hack b/c self.send has unhandled exceptions
    break
### end insert
data = data[bytes_sent:]

有兴趣听到使用上述任何问题