[Chameleon] Session lock, PHP Warning

Wed Jun 15 08:08:19 EDT 2005

The only mention I found of this in the archive is:

http://lists.maptools.org/pipermail/chameleon/2004-September/001306.html

It mentions permission issues ... perhaps this is the case for your tmp folders.  Perhaps Bart recalls what the issue was with his installation?

Jason

Gail wrote:
> Hi Jason,
> 
> You were right about the path issue which I managed to soon rectify within
> the chameleon.map file. Now the php script works
> http://camber.mc.man.ac.uk/script.php . So I went to reload the viewer and
> no image but the php log was complaining about the lock file in the session
> folder (created in the tmp directory). 
> 
> When I load the viewer and delete the lock file the images now appear in the
> viewer first the keymap then the main map of Canada. 
> 
> My question is why is the lock file being created? How do I get the lock
> file removed so that the images load automatically into the viewer? Is it
> possible that some code is incorrect in the session.php file for windows
> system as I read a previous thread about this issue, but couldn't find a
> solution? 
> 
> If anyone else has experienced this problem with the chameleon samples on
> windows I would really appreciate your advice.
> 
> Kind Regards
> 
> Gail
> 
> -----Original Message-----
> From: Jason Fournier [mailto:jfournier at dmsolutions.ca] 
> Sent: 14 June 2005 18:28
> To: Gail Millin
> Cc: chameleon at lists.maptools.org
> Subject: Re: [Chameleon] Session lock, PHP Warning
> 
> Gail,
> 
> I suspect path issues.  This won't work:
> 
> http://camber.mc.man.ac.uk/ms_tmp/111876867135441.gif
> 
> But this will:
> 
> http://camber.mc.man.ac.uk/tmp/ms_tmp/111876867135441.gif
> 
> as the output of your script.php.  Do your paths in the Chameleon config
> reflect this as well?
> 
> 
> 
> 
> Gail Millin wrote:
> 
>>Jason,
>> 
>>
>>
>>>Your mapfile renders fine on my system.  Everything in 
>>
>>your Chameleon admin page looks correct.  
>>
>>Thats good news 
>>
>>
>>
>>>I would ask that you re-attempt the simple PHP script 
>>
>>sent earlier and see if it reveals any additional 
>>information:
>>
>>
>>><?php
>>>dl('php_mapscript_44.dll'); //or whatever version you are 
>>
>>using
>>
>>
>>>$oMap = ms_newMapObj
>>
>>( "/Inetpub/wwwroot/path/to/samples/map/chameleon.map" );
>>
>>
>>>$oImage = $oMap->draw();
>>>$szURL = $oImage->saveWebImage();
>>>echo "<img src=$szURL>";
>>>?>
>>
>>
>>I have run the above script using URL 
>>http://camber.mc.man.ac.uk/script.php and as you can see a 
>>red cross appears in the left had corner
>> 
>>
>>
>>>Questions:
>>>1) How long does it take for this page to process?
>>
>>For the chameleon sample pages to appear this is occurring 
>>immediately but then the images never appear. please see 
>>http://camber.mc.man.ac.uk/chameleon/samples/index.html
>> 
>>
>>
>>>2) Are there any errors in the browser?
>>
>>No there is just a message at the bottom of IE 
>>saying "Downloading picture (pathway of 
>>drawmap.php)"Finally a red cross appears first for the 
>>keymap image and then secondly for the main image
>>
>>
>>
>>>3) Are there any errors in the PHP log?
>>
>>Not errors as such but Warnings and Notices (I have 
>>attached the log file for anyone to view who might know 
>>what the problem is.
>>
>>
>>
>>>4) Are there any errors in the IIS log for this site?
>>
>>Not that I could see
>>
>>
>>
>>>Please post your findings to the list ... there are many 
>>
>>sharp individuals who may be able to assist as well.
>>
>>There is a session logfile aswell that seems to show the 
>>processes and ends with "drawmap.php : pausing in open()" I 
>>don't know why this is??? I have also attached the session 
>>log file
>>
>>Kind Regards
>>
>>Gail
>>
>>
>>>Gail Millin wrote:
>>>
>>>
>>>>>Does the directory 
>>>>
>>>>c:/Inetpub/wwwroot/tmp/sess_42ad6c72c00b1/ exist?  
>>>>
>>>>Yes it does in my tmp directory
>>>>
>>>>If so, are there any files in there?
>>>>
>>>>There are 3 files: - 
>>>>
>>>>1118661747-6210.map
>>>>lock file
>>>>session_file
>>>>
>>>>
>>>>
>>>>
>>>>>What is session.save_path set to in php.ini?
>>>>
>>>>
>>>>session.save_path = c:/Inetpub/wwwroot/tmp
>>>>
>>>>Thanks
>>>>
>>>>Gail
>>>>
>>>>
>>>>
>>>>>Gail Millin wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Hi List,
>>>>>>
>>>>>>I am getting no image appearing in the viewer the rest 
>>>>
>>>>of 
>>>>
>>>>
>>>>
>>>>>>the page loads fine including the projection 
>>>>
>>>>definitions. 
>>>>
>>>>
>>>>
>>>>>>I am getting the following warning when running the 
>>>>
>>>>sample 
>>>>
>>>>
>>>>
>>>>>>viewer for chameleon in the PHP logfile: - 
>>>>>>
>>>>>>
>>>>>>[13-Jun-2005 12:26:18] PHP Warning:  fopen
>>>>>>(c:/Inetpub/wwwroot/tmp/sess_42ad6c72c00b1/lock): 
>>>>
>>>>failed to 
>>>>
>>>>
>>>>
>>>>>>open stream: No such file or directory in 
>>>>>>
>>>>
>>>>
>>C:\Inetpub\wwwroot\chameleon\htdocs\common\session\session.p
>>
>>
>>>>>>hp on line 135
>>>>>>[13-Jun-2005 12:26:18] PHP Warning:  fread(): Length 
>>>>>>parameter must be greater than 0. in 
>>>>>>
>>>>
>>>>
>>C:\Inetpub\wwwroot\chameleon\htdocs\common\session\session.p
>>
>>
>>>>>>hp on line 213
>>>>>>
>>>>>>Also my session logfile tells me drawmap is pausing 
>>>>
>>>>before 
>>>>
>>>>
>>>>
>>>>>>opening (see below) : -
>>>>>>
>>>>>>14:57.3635 : sample_basic_plainbuttons.phtml : 
>>>>>>initializeSession( sid, ,  )
>>>>>>14:57.3708 : sample_basic_plainbuttons.phtml : 
>>
>>creating 
>>
>>
>>>>a 
>>>>
>>>>
>>>>
>>>>>>new session because .. has zero characters 
>>>>>>14:57.3712 : sample_basic_plainbuttons.phtml : 
>>
>>creating 
>>
>>
>>>>a 
>>>>
>>>>
>>>>
>>>>>>new session with id 
>>>>>>14:57.3717 : sample_basic_plainbuttons.phtml : Opened
>>
>>() 
>>
>>
>>>>>>c:/Inetpub/wwwroot/tmp, sid
>>>>>>14:57.3719 : sample_basic_plainbuttons.phtml : 
>>>>
>>>>session_id() 
>>>>
>>>>
>>>>
>>>>>>says 42ad8c715aa15
>>>>>>14:57.3730 : sample_basic_plainbuttons.phtml : created 
>>>>
>>>>lock 
>>>>
>>>>
>>>>
>>>>>>file in open()
>>>>>>14:57.3732 : sample_basic_plainbuttons.phtml : Read() 
>>>>>>42ad8c715aa15
>>>>>>14:58.4342 : sample_basic_plainbuttons.phtml : Write() 
>>>>>>42ad8c715aa15 
>>>>>>
>>>>
>>>>
>>gszRemoteAdd|s:14:"130.88.200.176";gszAppWebPath|s:45:"http:
>>
>>
>>>>//camber.mc.man.ac.uk/chameleon/samples/";gszAppPath|s:43:
>>>>
>>>>"C
>>>>
>>>
>>>>:\Inetpub\wwwroot\chameleon\samples\htdocs";gszCurrentLang
>>>>
>>>>ua
>>>>
>>>>
>>>>
>>>>>>ge|s:5:"en-
>>>>>>
>>>>
>>>>
>>CA";gszCoreWebPath|s:37:"http://camber.mc.man.ac.uk/chameleo
>>
>>
>>n/";gszCorePath|s:36:"C:\Inetpub\wwwroot\chameleon\htdocs/";
>>
>>
>>gszTmpPath|s:42:"c:/Inetpub/wwwroot/tmp/sess_42ad8c715aa15/"
>>
>>
>>>>;gszTmpMapPath|s:42:"c:/Inetpub/wwwroot/tmp/sess_42ad8c715
>>>>
>>>>aa
>>>>
>>>>
>>>>
>>>>>>15/";gszDefaultLanguage|s:5:"en-
>>>>>>CA";gnMapSessionMode|s:1:"1";gaszSkinSearchPath|a:2:
>>>>>>{i:0;s:13:"skins/default";i:1;s:12:"skins/sample";}
>>>>>>
>>>>
>>>>
>>gszTmpWebPath|s:12:"/tmp/ms_tmp/";gszTmpImgPath|s:28:"/Inetp
>>
>>
>>ub/wwwroot/tmp/ms_tmp/";gszButtonCachePath|s:36:"/Inetpub/ww
>>
>>
>>wroot/tmp/ms_tmp/buttons/";gszButtonCacheWebPath|s:20:"/tmp/
>>
>>
>>ms_tmp/buttons/";gszImgType|s:3:"PNG";gszMapTitleFontName|s:
>>
>>
>>4:"Vera";gszLegendFontName|s:4:"Vera";gErrorManager|O:12:"er
>>
>>
>>>>>>rormanager":4:
>>>>>>{s:11:"nErrorCount";i:0;s:12:"aszErrorList";a:0:{}
>>>
>>>>>s:18:"mszOldErrorHandler";s:0:"";s:12:"mnErrorLevel";N;}
>>>>>
>>>>
>>gszMapscriptModule|s:20:"php_mapscript_44.dll";gszWMSParseFi
>>
>>
>>le|s:68:"/Inetpub/wwwroot/chameleon/htdocs/common/wmsparse/w
>>
>>
>>>>>>in32/wmsparse.exe";gszCurrentState|s:15:"1118669938-
>>>>>>
>>>>
>>>>
>>7553";gszMapName|s:64:"C:\Inetpub\wwwroot\chameleon\samples\
>>
>>
>>htdocs/../map/chameleon.map";gszMapPath|s:50:"C:\Inetpub\www
>>
>>
>>root\chameleon\samples\htdocs/../map";gnTimeout|i:120;aszLan
>>
>>
>>>>>>g|a:0:{}
>>>>>>
>>>>
>>>>
>>KEYMAP_SRS|s:10:"epsg:42304";KEYMAP_INIT|s:1:"1";ERRORREPORT
>>
>>
>>POPUPSTYLERESOURCE|s:41:"TextButtonssample_basic_plainbutton
>>
>>
>>>>>s.html";QUERYPOPUPSTYLERESOURCE|s:0:"";aoAnnotation|a:0:
>>>>
>>>>{}
>>>>
>>>>
>>>>
>>>>>>14:58.4834 : sample_basic_plainbuttons.phtml : Closed()
>>>>>>14:58.4836 : sample_basic_plainbuttons.phtml : 
>>
>>checking 
>>
>>
>>>>>>lock file 
>>
>>c:/Inetpub/wwwroot/tmp/sess_42ad8c715aa15/lock
>>
>>
>>>>>>14:58.4841 : sample_basic_plainbuttons.phtml : removed 
>>>>
>>>>lock 
>>>>
>>>>
>>>>
>>>>>>file c:/Inetpub/wwwroot/tmp/sess_42ad8c715aa15/lock
>>>>>>14:58.5150 : drawmap.php : initializeSession( sid, ,  )
>>>>>>14:58.5158 : drawmap.php : Opened() 
>>>>
>>>>c:/Inetpub/wwwroot/tmp, 
>>>>
>>>>
>>>>
>>>>>>sid
>>>>>>14:58.5160 : drawmap.php : session_id() says 
>>>>
>>>>42ad8c715aa15
>>>>
>>>>
>>>>
>>>>>>14:58.5165 : drawmap.php : pausing in open()
>>>>>>14:59.7097 : drawmap.php : pausing in open()
>>>>>>
>>>>>>Why would this be happening? No image is coming up at 
>>>>
>>>>the 
>>>>
>>>>
>>>>
>>>>>>moment I think it might have to do with the creation 
>>
>>of 
>>
>>
>>>>the 
>>>>
>>>>
>>>>
>>>>>>lock file???? Has anyone else had this problem?
>>>>>>
>>>>>>I am using Windows Server 2003, IIS6, Chameleon 2.0, 
>>>>
>>>>and 
>>>>
>>>>
>>>>
>>>>>>PHP 4.3.11
>>>>>>
>>>>>>Any help or suggestions I would really appreciate
>>>>>>
>>>>>>Thanks
>>>>>>
>>>>>>Gail
>>>>>>
>>>>>>----------------------------------------
>>>>>>Gail Rebecca Millin
>>>>>>Geodata Interoperability Support Officer
>>>>>>----------------------------------------
>>>>>>MIMAS
>>>>>>Manchester Computing
>>>>>>The University of Manchester
>>>>>>Oxford Road
>>>>>>Manchester
>>>>>>M13 9PL
>>>>>>
>>>>>>E-mail: Gail.Millin at manchester.ac.uk
>>>>>>Website: http://www.mimas.ac.uk/spatial
>>>>>>-----------------------------------------
>>>>>>
>>>>>>_______________________________________________
>>>>>>Chameleon mailing list
>>>>>>Chameleon at lists.maptools.org
>>>>>>http://lists.maptools.org/mailman/listinfo/chameleon
>>>>>>
>>>>>
>>>>>-- 
>>>>>________________________
>>>>>Jason Fournier
>>>>>
>>>>>DM Solutions Group Inc.
>>>>>jfournier at dmsolutions.ca
>>>>>www.dmsolutions.ca
>>>>>613.565.5056 x18
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>----------------------------------------
>>>>Gail Rebecca Millin
>>>>Geodata Interoperability Support Officer
>>>>----------------------------------------
>>>>MIMAS
>>>>Manchester Computing
>>>>The University of Manchester
>>>>Oxford Road
>>>>Manchester
>>>>M13 9PL
>>>>
>>>>E-mail: Gail.Millin at manchester.ac.uk
>>>>Website: http://www.mimas.ac.uk/spatial
>>>>-----------------------------------------
>>>>
>>>>
>>>
>>>-- 
>>>________________________
>>>Jason Fournier
>>>
>>>DM Solutions Group Inc.
>>>jfournier at dmsolutions.ca
>>>www.dmsolutions.ca
>>>613.565.5056 x18
>>>
>>>
>>
>>
>>
>>----------------------------------------
>>Gail Rebecca Millin
>>Geodata Interoperability Support Officer
>>----------------------------------------
>>MIMAS
>>Manchester Computing
>>The University of Manchester
>>Oxford Road
>>Manchester
>>M13 9PL
>>
>>E-mail: Gail.Millin at manchester.ac.uk
>>Website: http://www.mimas.ac.uk/spatial
>>-----------------------------------------
>>
>>
>>
> 
> 

-- 
________________________
Jason Fournier

DM Solutions Group Inc.
jfournier at dmsolutions.ca
www.dmsolutions.ca
613.565.5056 x18