[mod_python] This is just friggin' weird...

Okay, discovering new stuff all the time... I backed out my last 
changes to the code and it works great... the last change was that I 
added as the first line to my PSP page:

psp.set_error_page('error.psp')

When I comment this out, I get the error on psp.redirect() that I've 
already send data back to the client -- it's talking about the 
debugging code I put in to triage this issue.

Why would this make things run amok?

-jag

-------------- next part --------------
A non-text attachment was scrubbed...
Name: unknown.jpg
Type: image/jpeg
Size: 1984 bytes
Desc: not available
Url : http://mm_cfg_has_not_been_edited_to_set_host_domains/pipermail/mod_python/attachments/20050623/39180fc7/unknown-0001.jpg
-------------- next part --------------

Joshua Ginsberg -- joshg at brainstorminternet.net
Brainstorm Internet Network Operations
970-247-1442 x131
On Jun 23, 2005, at 4:09 PM, Joshua Ginsberg wrote:

> Okay, and something else I've discovered... it appears to be hanging 
> on psp.redirect...
>
> Now, at least in my experience, psp.redirect will throw an error if 
> data has been written back out to the client when redirect() is 
> called. It's not doing that. It's just... hanging.
>
> The way I discovered this was by accident. I was testing it by 
> telnetting to port 80 and manually entering for data. I accidentally 
> left off a field, and it hung at a different place it had ever hung 
> before. At that spot, there's a psp.redirect to an error handler...
>
> So... why? I don't get it.
>
> -jag
>
> <unknown.jpg>
> Joshua Ginsberg -- joshg at brainstorminternet.net
> Brainstorm Internet Network Operations
> 970-247-1442 x131
> On Jun 23, 2005, at 10:28 AM, Joshua Ginsberg wrote:
>
>> I have an application that I developed using PSP pages. It is seven 
>> steps to sign somebody up with our company. It worked just great 
>> yesterday, this morning, it hangs going from step 1 to step 2, but 
>> only with certain input data. Nothing in any of my logs is of any 
>> use.
>>
>> I have a development server for it that queries the same MySQL and 
>> MSSQL databases -- it hangs too at the same point. I inserted some 
>> debug output in the development server to see where it's hanging up.
>>
>> When I don't have a Session defined, it hangs up at a section that is:
>> - a call to an API that inserts some data in a MySQL server
>> - a call to psp.redirect (which should throw an error because i've 
>> already returned stuff to the client, but it doesn't throw an error)
>>
>> Trying that API from command line by hand works like a charm, so I'm 
>> not convinced it's the API.
>>
>> When I do have a Session defined, it hangs up on trying to import the 
>> session. I've got a wrapper around the Session,DbmSession class which 
>> basically does nothing but return an empty string instead of raising 
>> an error if a key doesn't exist. I've already cleared the dbm file, 
>> started over from scratch, and ensured that the dbm file is 
>> readable/writable by apache.
>>
>> I cleared the semaphore array for Apache, I've restarted Apache, I've 
>> restarted MySQL, and none of it has helped...
>>
>> Anybody have any ideas? I'm just stumped at this point. If you need 
>> code snippets or the site to test it out on, let me know. Thanks!
>>
>> -jag
>>
>>
>> <unknown.jpg>
>> Joshua Ginsberg -- joshg at brainstorminternet.net
>> Brainstorm Internet Network Operations
>> 970-247-1442 x131_______________________________________________
>> Mod_python mailing list
>> Mod_python at modpython.org
>> http://mailman.modpython.org/mailman/listinfo/mod_python