Webware for Python

Thank you, Geoff. I am looking into the note now.

I have been watching the terminal and this popped up:

    6  2006-05-18 10:42:54  None
Traceback (most recent call last):
   File "./WebKit/ThreadedAppServer.py", line 418, in threadloop
   File "./WebKit/ThreadedAppServer.py", line 785, in handleRequest
   File "./WebKit/Application.py", line 473, in dispatchRawRequest
   File "./WebKit/Application.py", line 740, in  
handleExceptionInTransaction
AttributeError: 'NoneType' object has no attribute 'request'
     7  2006-05-18 10:45:38  /cgi-bin/WebKit.cgi
HTTPResponse: /cgi-bin/WebKit.cgi: Moved Permanently
     7  0.00 secs            /cgi-bin/WebKit.cgi


  - Mark

On May 18, 2006, at 9:34 AM, Geoffrey Talvola wrote:

> Check out this message from the archives:
> http://www.mail-archive.com/webware-discuss@...> 
> msg06849.h
> tml
>
> It suggests that using:
>
> export LD_ASSUME_KERNEL=2.4.19
>
> might solve the problem.
>
> - Geoff
>
>
>
> -----Original Message-----
> From: Mark Phillips [mailto:mark@...]
> Sent: Thursday, May 18, 2006 12:24 PM
> To: webware-discuss@...
> Subject: [Webware-discuss] 0.9.1 waiting on "futex" call
>
>
> On a machine running GNU/Linux 2.4.22, Fedora Core. Python 2.4
> installed. I modified the WebKit.cgi to call python 2.4 directly, as
> the machine has several versions of python:
> 	#!/usr/local/bin/python2.4
>
> Nothing in Error_Msgs in the Webware application directory.
>
> A couple of days ago I was seeing this and, per Chuck's suggestion, I
> check the port status. The 8080 and 8086 ports were blocked. I set
> then to allow calls from localhost and it appeared to set things
> right. However, yesterday and today, the AppServer has hung again.
>
> Webware seems to hang. Httpd/error-log shows "Premature end of script
> headers: WebKit.cgi"
>
> [Wed May 17 16:21:23 2006] [info] (104)Connection reset by peer:
> core_output_filter: writing data to the network
> [Wed May 17 16:23:43 2006] [info] (32)Broken pipe:
> core_output_filter: writing data to the network
> [Wed May 17 16:24:43 2006] [info] (32)Broken pipe:
> core_output_filter: writing data to the network
> [Wed May 17 16:25:17 2006] [error] [client xxx.xxx.xxx.xxx] Premature
> end of script headers: WebKit.cgi
>
> Are there threading issues with the 2.4.22 kernel?
>
> Other thoughts?
>
> All suggestions are greatly appreciated.
>
>   - Mark
>
>
> -------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services,  
> security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> Geronimo
> http://sel.as-us.falkag.net/sel? 
> cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Webware-discuss mailing list
> Webware-discuss@...
> https://lists.sourceforge.net/lists/listinfo/webware-discuss
>
>
> -------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services,  
> security?
> Get stuff done quickly with pre-integrated technology to make your  
> job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> Geronimo
> http://sel.as-us.falkag.net/sel? 
> cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Webware-discuss mailing list
> Webware-discuss@...
> https://lists.sourceforge.net/lists/listinfo/webware-discuss
>

On May 18, 2006, at 9:34 AM, Geoffrey Talvola wrote:

> Check out this message from the archives:
> http://www.mail-archive.com/webware-discuss@...> 
> msg06849.h
> tml
>
> It suggests that using:
>
> export LD_ASSUME_KERNEL=2.4.19
>
> might solve the problem.

It turns out that the export statement doesn't do anything on Fedora  
Core 2, kernel 2.4.22. See this note:
	<http://www.tummy.com/journals/entries/kevin_20050805_114056>

  - Mark

On Thu, 18 May 2006 15:00:03 -0700, Mark Phillips <mark@...> wrote:

>Problem solved.
>
>It turns out the Fedora Core 2 does not support Python 2.4.x. I set  
>the default python to Python 2.3.4 and, so far, all seems well.
>

What does that mean -- it "does not support Python 2.4.x"?  The
operating system and/or distribution should be completely irrelevant to
the Python version.  I can believe that some operating system scripts
will screw up if you link python2 to python2.4.x, but that shouldn't
affect Webware.

-- 
Tim Roberts, timr@...
Providenza & Boekelheide, Inc.

On 5/19/06, Tim Roberts <timr@...> wrote:
> On Thu, 18 May 2006 15:00:03 -0700, Mark Phillips <mark@...> wro=
te:
>
> >Problem solved.
> >
> >It turns out the Fedora Core 2 does not support Python 2.4.x. I set
> >the default python to Python 2.3.4 and, so far, all seems well.
> >
>
> What does that mean -- it "does not support Python 2.4.x"?  The
> operating system and/or distribution should be completely irrelevant to
> the Python version.  I can believe that some operating system scripts
> will screw up if you link python2 to python2.4.x, but that shouldn't
> affect Webware.

Fedora Core 2 is fairly old. The current version is 5. It may be that
the maintainers of Python did not test it with 2 and there is an
incompatibility which Mark summed up as "does not support".

-Chuck

On May 19, 2006, at 8:48 AM, Tim Roberts wrote:

> What does that mean -- it "does not support Python 2.4.x"?  The
> operating system and/or distribution should be completely  
> irrelevant to
> the Python version.  I can believe that some operating system scripts
> will screw up if you link python2 to python2.4.x, but that shouldn't
> affect Webware.

I thought so too, and would like to be disabused of my present  
opinion. However, while banging around on the #python, #fedora and  
#fedora-legacy channels, the common opinion was that FC 2 didn't have  
everything python 2.4 needs. I was seeing error regarding sockets and  
so on.

The folks on the fedora channels are a bit above my head regarding  
the os modules and it is difficult for me to ask them a coherent  
question. So, I can't really tell you why they felt there was an issue.

I just took them at their word and moved on to things I can control.  
I am back to dealing the original error message, the "bad token" in  
xmlrpclib.py, which has some promise of a solution.

Now where did I set that spare grey matter...

  - Mark

On 5/19/06, Mark Phillips <mark@...> wrote:
> On May 19, 2006, at 8:48 AM, Tim Roberts wrote:
>
> > What does that mean -- it "does not support Python 2.4.x"?  The
> > operating system and/or distribution should be completely
> > irrelevant to
> > the Python version.  I can believe that some operating system scripts
> > will screw up if you link python2 to python2.4.x, but that shouldn't
> > affect Webware.
>
> I thought so too, and would like to be disabused of my present
> opinion. However, while banging around on the #python, #fedora and
> #fedora-legacy channels, the common opinion was that FC 2 didn't have
> everything python 2.4 needs. I was seeing error regarding sockets and
> so on.
>
> The folks on the fedora channels are a bit above my head regarding
> the os modules and it is difficult for me to ask them a coherent
> question. So, I can't really tell you why they felt there was an issue.
>
> I just took them at their word and moved on to things I can control.
> I am back to dealing the original error message, the "bad token" in
> xmlrpclib.py, which has some promise of a solution.
>
> Now where did I set that spare grey matter...
>
>   - Mark

Maybe I missed this in a previous thread, but is it possible to
upgrade to, say for example, Fedore Core 4?  (5 just came out this
week, so 4 would seem like a safer bet as Python users have
undoubtedly used it).

-Chuck

On May 19, 2006, at 10:21 AM, Chuck Esterbrook wrote:

> Maybe I missed this in a previous thread, but is it possible to
> upgrade to, say for example, Fedore Core 4?

I would be so happy if they did. So far, the sys op says it would be  
a big job and boss isn't inclined to risk having his machine down.

I am going to wait a bit, then suggest adding a backup server. Make  
the current machine the backup, with the new one being more up to date.

BTW, following on Oliver's suggestion of examining the incoming data,  
how should I trap the event in xmlrpcservlet? I was thinking of  
simply trying to "print" the transaction parameter as it comes in to  
the method, and just log the terminal for a while.

  - Mark

On 5/19/06, Mark Phillips <mark@...> wrote:
> On May 19, 2006, at 10:21 AM, Chuck Esterbrook wrote:
>
> > Maybe I missed this in a previous thread, but is it possible to
> > upgrade to, say for example, Fedore Core 4?
>
> I would be so happy if they did. So far, the sys op says it would be
> a big job and boss isn't inclined to risk having his machine down.
>
> I am going to wait a bit, then suggest adding a backup server. Make
> the current machine the backup, with the new one being more up to date.
>
> BTW, following on Oliver's suggestion of examining the incoming data,
> how should I trap the event in xmlrpcservlet? I was thinking of
> simply trying to "print" the transaction parameter as it comes in to
> the method, and just log the terminal for a while.

Sounds fine to me. I've used the same technique before. I always log
the output of WebKit even when I'm not having problems (because I
never know when problems are going to come up).

You can also throw in a specific try:except: in your code or even
Webware's like so:

    try:
        # existing, problematic code
    except:
        print someInterestingStuff
        raise

Occasionally, I've also emailed the info to myself instead of
printing. Just depends on what it is.

-Chuck