[Baypiggies] Need help root causing exception http.client.BadStatusLine
Shubhra Sharma
sharma.shubhra07 at gmail.com
Mon Oct 29 04:17:52 CET 2012
So nc -l localhost 8080 in one terminal tab and running my client in
another tab. My client does several POST, PUT and some GETs. I did a Ctrl-C
but didnot hit the Bad StatusLine on my OSX10.7.x. I never hit the Bad
StatusLine on my OSX10.7.x. It occurs only on CentOS. Maybe I am missing
something?
Thanks for your help,
Shubhra
On Sun, Oct 28, 2012 at 7:09 PM, AM <ams.fwd at gmail.com> wrote:
> I think what Guido meant was that the server was alive but did not respond
> with anything, instead closing the connection.
>
> Assuming you are running on linux or OSX a quick way to check it is to use
> the netcat tool in a terminal:
>
> nc -l -p 8080
>
> Then have your client connect to localhost:8080/...
>
> In the terminal you should see the request. Ctrl-C netcat and you should
> (afaik) see the BadStatusLine error.
>
> What that would mean is that somewhere tomcat decided to simply close the
> connection before any response was sent out.
>
> HTH
> AM
>
>
> On 10/28/2012 06:37 PM, Shubhra Sharma wrote:
>
>> Hi Guido,
>>
>> Thanks for responding.I will check the catalina logs to see what happened.
>>
>> When tomcat is not running on my setup I see the following error:
>>
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**site-packages/httplib2/__init_**_.py", line
>> 1207, in request
>> (response, content) = self._request(conn, authority, uri,
>> request_uri, method, body, headers, redirections, cachekey)
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**site-packages/httplib2/__init_**_.py", line
>> 961, in _request
>> (response, content) = self._conn_request(conn, request_uri, method,
>> body, headers)
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**site-packages/httplib2/__init_**_.py", line
>> 898, in _conn_request
>> conn.connect()
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**http/client.py", line 724, in connect
>> self.timeout, self.source_address)
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**socket.py", line 404, in create_connection
>> raise err
>> File "/opt/local/Library/**Frameworks/Python.framework/**
>> Versions/3.2/lib/python3.2/**socket.py", line 395, in create_connection
>> sock.connect(sa)
>> socket.error: [Errno 61] Connection refused
>>
>> I did not see the BadStatusLine exception in my unittesting. Is there
>> anything I can do to catch this exception, the try catch around the http
>> request did not catch it? I am using httplib2 if that helps
>> Thanks,
>> Shubhra
>>
>> On Sun, Oct 28, 2012 at 5:28 PM, Guido van Rossum <guido at python.org<mailto:
>> guido at python.org>> wrote:
>>
>> That particular line where this is raised means the server closed the
>> connection without sending any response at all. Check your server
>> logs?
>>
>> On Sun, Oct 28, 2012 at 4:00 PM, Shubhra Sharma
>> <sharma.shubhra07 at gmail.com <mailto:sharma.shubhra07@**gmail.com<sharma.shubhra07 at gmail.com>
>> >>
>>
>> wrote:
>> > Hi Aahz,
>> >
>> > Thanks for responding. I'm not sending an Expect Header and I'm
>> using
>> > Apache-Coyote/1.1
>> >
>> > Thanks,
>> > Shubhra
>> >
>> >
>> > On Sun, Oct 28, 2012 at 2:06 PM, Aahz <aahz at pythoncraft.com
>> <mailto:aahz at pythoncraft.com>> wrote:
>> >>
>> >> On Sun, Oct 28, 2012, Shubhra Sharma wrote:
>> >> >
>> >> > I am encountering http.client.BadStatusLine exception when I
>> run my
>> >> > python
>> >> > scripts on CentOS6.32 but things seem to work fine on MAC
>> OSX10.7.5 and
>> >> > 10.8. I'm on Python3.2.3.
>> >> >
>> >> > I searched for answers on the internet and looked at the python
>> >> > documentation as well without much luck. As per the
>> documentation if a
>> >> > server responds with a HTTP status code that we don?t
>> understand this
>> >> > error
>> >> > is raised. The server is a Tomcat server. Any ideas on how to
>> debug this
>> >> > will be greatly appreciated.
>> >> >
>> >> > Here's a snippet of the error:
>> >> > response = conn.getresponse()
>> >> > python3.2/http/client.py", line 1049, in getresponse
>> >> > response.begin()
>> >> > python3.2/http/client.py", line 346, in begin
>> >> > version, status, reason = self._read_status()
>> >> > python3.2/http/client.py", line 328, in _read_status
>> >> > raise BadStatusLine(line)
>> >> > http.client.BadStatusLine:
>> >>
>> >> I've seen various causes for this, but I'd start by making sure
>> that
>> >> you're not sending an Expect: header and doing HTTP/1.0 connection.
>> >> --
>> >> Aahz (aahz at pythoncraft.com <mailto:aahz at pythoncraft.com>)
>> <*>
>>
>> >> http://www.pythoncraft.com/
>> >>
>> >> "We've just found a line in a perl script that invokes a shell
>> script to
>> >> call
>> >> a lisp program which invokes the very-same perl script."
>> --anonymous
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>>
>>
>> --
>> --Guido van Rossum (python.org/~guido <http://python.org/%7Eguido>)
>>
>>
>>
>>
>>
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