[Python-Dev] Python related issue

[Brett Cannon]

In the bug it was suggested you post to python-list for help. Have you done
that? (this is python-dev, not python-list).

On Thu, 22 Dec 2016 at 14:39 Manish Singh <manish.ciem at gmail.com> wrote:

> Hi All,
>
> Please see below issue. Please reply on bug
> http://bugs.python.org/issue28968
>
>
> [ Issue ]
> I have used xml rpc library with transport as http. My client and server
> are running on same host.
>
> Some xml rpc requests fail with connection reset by peer error number. I
> have used xmlrpclib.ServerProxy() to call remote method on xml rpc server
> running on an ephemeral port.
>
> This issue has happen many times.
>
> log snippet,
>
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request
>     verbose=self.__verbose
>   File "/usr/lib64/python2.6/xmlrpclib.py", line 1237, in request
>     errcode, errmsg, headers = h.getreply()
>   File "/usr/lib64/python2.6/httplib.py", line 1064, in getreply
>     response = self._conn.getresponse()
>   File "/usr/lib64/python2.6/httplib.py", line 990, in getresponse
>     response.begin()
>   File "/usr/lib64/python2.6/httplib.py", line 391, in begin
>     version, status, reason = self._read_status()
>   File "/usr/lib64/python2.6/httplib.py", line 349, in _read_status
>     line = self.fp.readline()
>   File "/usr/lib64/python2.6/socket.py", line 433, in readline
>     data = recv(1)
> error: [Errno 104] Connection reset by peer
>
> [ Test Environment ]
> RHEL 6 with linux kernel 2.6.32-504.16.2.el6.
> Python 2.6.6
> glibc-2.12-1.149.7
>
>
> [ Possible Reasons for it ]
>
> 1) The machine is connected to the network, and the network is not
> responsive.
> 2) The other side of the connection is not running normally.
> 3) There are not enough system resources available. Free up system
> resources if they are running low.
>
> Possibility for 1 and 2 are not applicable as it is loop back
> communication(Client and Server running on same machine).
> For Possibility 3, I have already checked system resource and there are
> enough resources(80% RAM used, 20% cpu usage, around 10 GB RAM free).
>
> I checked for other reasons and i found that this issue may be related
> with GIL,
> Please refer this link,
>
> http://stackoverflow.com/questions/383738/104-connection-reset-by-peer-socket-error-or-when-does-closing-a-socket-resu
>
> 1> Can you please let me know, is it really a issue realted with GIL?
> 2> If yes, How to resolve this issue?
> 3> If no, what other reason may exists for such failure. [Note: Those rpc
> requests fail which return python's dictionary data to client]
>
> --
> Er. Manish Singh
> Engineer at NEC Technologies India Limited
> Computer Science & Engineering
> M.Tech ( MNNIT CS Allahabad )
> B. Tech ( Calcutta Institute Of Engg. & Mgmt., Kolkata )
> < email : manish.ciem at gmail.com >
> < contact no. -  9899886538 <(989)%20988-6538>, 9651540577 >
>
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