[Chameleon] Installing Chameleon on FC4

[Mike Leahy]

Hello again,

I'm not sure whether this adds any insight into this problem, but if I 
try to load the Chameleon admin page, I get yet another blank page, and 
the following error logged in the httpd error_log file:

[23389] MMCACHE can't restore parent class "logger" of class "AppContext"
[Thu Dec 15 18:43:36 2005] [notice] child pid 23389 exit signal 
Segmentation fault (11)

Anyone have some ideas?

Mike

Mike Leahy wrote:
> Hello list,
> 
> I'm trying to see if I can get our applications running in a Linux
> environment.  I've got everything setup on FC4, with apache 2.0.54, PHP
> 5.0.4, MapServer 4.8.0-beta2, PHP/MapScript (this module loads fine
> in-line in PHP using dl function, but fails if included in the PHP
> startup - has anyone else had a similar problem?).
> 
> Here's the result of ms_GetVersion() after I dl() the mapscript module
> in a PHP test script:
> 
> MapServer version 4.8.0-beta2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
> OUTPUT=WBMP OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ
> SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
> SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER
> SUPPORTS=FASTCGI SUPPORTS=GEOS INPUT=TIFF INPUT=EPPL7 INPUT=POSTGIS
> INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
> 
> I've most recently tried setting up chameleon, and I'm fairly sure I've
> got the chameleon.xml and cwc2.xml configuration files setup properly,
> but I'm getting a blank page when I try to load one of the Chameleon
> samples.  I know the sample mapfile "chameleon.map" works fine, as I can
> load it directly though the mapserver cgi-bin executable as a WMS.  I
> also have been able to determine that the startup sample scripts end
> when the $oApp->CWCInitialize() function is executed. In the httpd
> error_log file, the only notice of a problem I get is as follows:
> 
> [client 127.0.0.1] PHP Warning:  Invalid argument supplied for foreach()
> in /var/www/chameleon/htdocs/common/appcontext/appcontext.php on line 276
> 
> the corresponding code in appcontext.php is:
> 
> foreach ($this->aoContext as $oContext)
> {
>   $result = $oContext->getContextValue( $szParam );
>   if ($result !== false)
>   break;
> }
> 
> I've had similar 'blank page' issues when installing Chameleon in
> windows.  I've also noticed many other users run into this, and it
> usually relates to some configuration issue.  However, I'm at a bit of a
> loss with this in my FC4 configuration.  Has anyone got a clue what
> settings/requirements in PHP, Apache, or Chameleon that I have overlooked?
> 
> As an aside, does anyone know why this error doesn't get reported to the
> page in the browser?  If I put an intentional syntax error, it appears
> as normal in the browser...
> 
> Thanks in advance for any help,
> Mike
> 
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