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From Stuart Roebuck <stuart.roeb...@adolos.co.uk>
Subject Re: [C2.1] LoadTesting and missing returned pages
Date Fri, 24 Aug 2001 13:13:38 GMT

On Wednesday, August 22, 2001, at 11:35  pm, Stuart Roebuck wrote:

>
> 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.

As a follow-up to this (just to keep this issue in the profile :-) )...

I've just tried things under Resin 2.0.1 using MySQL and am having 
identical problems, so this doesn't look like a 'container' problem.

Stuart.

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


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