[Baypiggies] Need help root causing exception http.client.BadStatusLine
AM
ams.fwd at gmail.com
Mon Oct 29 06:16:34 CET 2012
Strange. On debian testing with python 2.7 with the following steps I
get this output:
1. Start netcat, (note: OSX does now allow -p with -l)
2. Fire the request
3. ctrl-c netcat
Can you reproduce that?
netcat:
» nc -l -p 8080
GET /hello HTTP/1.1
Accept-Encoding: identity
Host: localhost:8080
Connection: close
User-Agent: Python-urllib/2.7
^C
Interpreter:
» python
Python 2.7.3rc2 (default, Apr 22 2012, 22:30:17)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from urllib2 import urlopen
>>> r = urlopen('http://localhost:8080/hello')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/urllib2.py", line 126, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 400, in open
response = self._open(req, data)
File "/usr/lib/python2.7/urllib2.py", line 418, in _open
'_open', req)
File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain
result = func(*args)
File "/usr/lib/python2.7/urllib2.py", line 1207, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.7/urllib2.py", line 1180, in do_open
r = h.getresponse(buffering=True)
File "/usr/lib/python2.7/httplib.py", line 1030, in getresponse
response.begin()
File "/usr/lib/python2.7/httplib.py", line 407, in begin
version, status, reason = self._read_status()
File "/usr/lib/python2.7/httplib.py", line 371, in _read_status
raise BadStatusLine(line)
httplib.BadStatusLine: ''
>>>
On 10/28/2012 08:17 PM, Shubhra Sharma wrote:
> 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
> <mailto: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>
> <mailto: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 at gmail.com>
> <mailto:sharma.shubhra07 at gmail.com
> <mailto: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>
> <mailto: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> <mailto: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
> >> _______________________________________________
> >> Baypiggies mailing list
> >> Baypiggies at python.org <mailto:Baypiggies at python.org>
> <mailto:Baypiggies at python.org <mailto:Baypiggies at python.org>>
>
> >> To change your subscription options or unsubscribe:
> >> http://mail.python.org/mailman/listinfo/baypiggies
> >
> >
> >
> > _______________________________________________
> > Baypiggies mailing list
> > Baypiggies at python.org <mailto:Baypiggies at python.org>
> <mailto:Baypiggies at python.org <mailto:Baypiggies at python.org>>
>
> > To change your subscription options or unsubscribe:
> > http://mail.python.org/mailman/listinfo/baypiggies
>
>
>
> --
> --Guido van Rossum (python.org/~guido
> <http://python.org/%7Eguido> <http://python.org/%7Eguido>)
>
>
>
>
>
> _______________________________________________
> Baypiggies mailing list
> Baypiggies at python.org <mailto:Baypiggies at python.org>
> To change your subscription options or unsubscribe:
> http://mail.python.org/mailman/listinfo/baypiggies
>
>
>
More information about the Baypiggies
mailing list