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From Stuart Roebuck <stuartroeb...@mac.com>
Subject Re: [C2.1] LoadTesting and missing returned pages
Date Wed, 22 Aug 2001 22:35:00 GMT

On Wednesday, August 22, 2001, at 06:51  pm, Craeg K. Strong wrote:

> Stuart Roebuck wrote:
>
>> I've noticed recently that requests for pages from Cocoon sometimes 
>> appear not to be received and responded to, or return blank pages.  For 
>> a while I'
>> ve just assumed it was some bug in Mozilla, but today I've been testing 
>> further and this appears to be a Cocoon issue.
>>
>> I mention it with regard to LoadTesting, because, if I'm not unique in 
>> my experience, then LoadTesting results maybe unrepresentative, if the 
>> returned pages aren't complete!
>>
>> I haven't has a chance to investigate this much, but it looks as though 
>> it might be serializing before the content is complete, or else 
>> obtaining some blank value from cache rather than generating a new 
>> version.  All the problem pages include some degree of aggregation.
>>
>> Stuart.
>
> I have noticed similar problems.   For me, hitting the "refresh" button 
> once (and sometimes twice) does the
> trick.    I am using Cocoon2 beta2 with Tomcat 4.0 beta 7 on Red Hat 
> Linux 7.1  with plenty RAM/disk/etc.
> I did notice something very interesting yesterday.   I normally start up 
> postgresql and use it for my database
> (just for the cocoon "personnel" example so far... :-)    But yesterday I 
> did not start up postgresql and did not
> observe the problem.  All my pages came up right away, fully populated!
>
> Questions:  are you using a database?  Does this behavior occur regularly?
>  Intermittently?    Which version of
> Tomcat are you using?

I'm running Cocoon 2.1 (latest CVS) with Tomcat 4.0 beta 7 on Mac OS X 10.
x.  I've been using it with PostgreSQL 7.1.2 until about a week ago when 
technical difficulties unrelated to Cocoon forced me to move back to MySQL.
   The problems I've described occur with both.

And yes, your description of having to hit 'refresh' once or twice is 
exactly like my own experience.  Glad to know I'm not imagining it!

Stuart.

-------------------------------------------------------------------------
Stuart Roebuck                                  stuart.roebuck@adolos.com
Lead Developer                               Java, XML, MacOS X, XP, etc.
ADOLOS                                           <http://www.adolos.com/>


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