[MS4W-Users] Mapserver variable session php error in Ubuntu Server

Fri May 4 13:37:17 EST 2012

Hi, I hope you can help me with a problem. Some years ago I developed a 
gis with apache + php + mapserver + postgresql + postgis + chameleon. I 
had two systems: one in Windows XP 

32bit and the other with Ubuntu Server 9.10 32bit. I upgraded to v3.0.2 
MS4W with (MapServer 5.6.6, PHP 5.3.6, Apache 2.2.17 with OpenSSL 
0.9.8o) with Chameleon 2.6rc, PostgreSQL 9 and PostGIS 1.5 on 

windows and have installed on the server a Ubuntu Server 11.10 64bit 
with Mapserver 5.6.6, PHP 5.3.6-13, Apache 2.2.20, Chameleon 2.6rc, 
PostgreSQL 9 and PostGIS 1.5.

In windows everything works fine without any error, but in linux all the
 gis works well except the generation of map images. Chameleon gives me 
the following error:

"Error rendering map image:

A fatal error has occurred restoring your session.

Please restart the application ".

This error occurs randomly, ie sometimes appear soon after starting the 
web that maps samples and sometimes tear good maps and after interacting
 with buttons such as zoom, search, select layers, etc.. comes a time 
when the error occurs.

I tried to load the maps with various browsers: Internet Explorer 8 and 
9, Firefox 9, 11 and 12, with Chrome, etc and all the error (sometimes 
earlier and sometimes later).

I located the error message in the files of Chameleon and occurs when 
the session is lost. After questioning the official mailing list 
Chameleon I have not responded to or Chameleon Mapserver issue, but the 
problem is the PHP session variables in Ubuntu that are not properly 
read.

I looked where the variables that make Ubuntu is in / var/lib/php5 / and when I go into the GIS files are created.

For example the content of this folder is:

-Rw-r - r - 1 www-data www-data 0 05/02/2012 12:29 DELETEME

drwxr-xr-x 2 www-data www-data 4096 02/05/2012 13:00 sess_4fa1124a4c1b0

drwxr-xr-x 3 www-data www-data 4096 02/05/2012 13:03 sess_4fa113d58b836

drwxr-xr-x 3 www-data www-data 4096 02/05/2012 13:28 sess_4fa11a52ecf87

drwxr-xr-x 3 www-data www-data 4096 02/05/2012 13:30 sess_4fa11ac13d4a7

drwxr-xr-x 3 www-data www-data 4096 8:15 sess_4fa22030ecf5a 05/03/2012

drwxr-xr-x 3 www-data www-data 4096 8:33 sess_4fa2248dd36d3 05/03/2012

drwxr-xr-x 2 www-data www-data 4096 8:35 sess_4fa2272b9d3c6 05/03/2012

drwxr-xr-x 3 www-data www-data 4096 8:43 sess_4fa228e314a33 05/03/2012

drwxr-xr-x 2 www-data www-data 4096 05/03/2012 10:00 sess_4fa23b23bcd80

drwxr-xr-x 3 www-data www-data 4096 05/03/2012 12:29 sess_4fa25d60a2ea9

-Rw ------- 1 www-data www-data 185 05/03/2012 12:26 sess_gmi7nemimpfsaf2lppn55m92c2

And for example in the directory sess_4fa25d60a2ea9 / that is created by entering the sig files are:

-Rw-r - r - 1 www-data www-data 1336040950-15887 3/5/2012 12:29 8569.map

-Rw-r - r - 1 www-data www-data 1336040951-15887 3/5/2012 12:29 2414.map

-Rw-r - r - 1 www-data www-data 1336040951-15887 3/5/2012 12:29 3346.map

-Rw-r - r - 1 www-data www-data 1336040957-15887 3/5/2012 12:29 2107.map

-Rw-r - r - 1 www-data www-data 1336040957-15887 3/5/2012 12:29 2317.map

-Rw-r - r - 1 www-data www-data 1336040959-15887 3/5/2012 12:29 3372.map

-Rw-r - r - 1 www-data www-data 1336040959-15887 3/5/2012 12:29 7593.map

-Rw-r - r - 1 www-data www-data 1336040960-15887 3/5/2012 12:29 7987.map

-Rw-r - r - 1 www-data www-data 1336040961-15887 3/5/2012 12:29 4889.map

-Rw-r - r - 1 www-data www-data 1336040963-15864 3/5/2012 12:29 2339.map

-Rw-r - r - 1 www-data www-data 1336040963-15864 3/5/2012 12:29 2976.map

-Rw-r - r - 1 www-data www-data 1336040972-15948 3/5/2012 12:29 4146.map

-Rw-r - r - 1 www-data www-data 1336040972-15948 3/5/2012 12:29 8593.map

-Rw-r - r - 1 www-data www-data 128 05/03/2012 12:27 8b4b39babc2d1b7a1b23490574832862.shp

-Rw-r - r - 1 www-data www-data 108 05/03/2012 12:27 8b4b39babc2d1b7a1b23490574832862.shx

-Rw-r - r - 1 www-data www-data 14 967 05/03/2012 12:26 mapDHTML_adjust.map

drwxr-xr-x 2 www-data www-data 4096 05/03/2012 12:29 queryresultdir

-Rw-r - r - 1 www-data www-data 13 898 05/03/2012 12:29 session_file

I searched the internet error php session variables in linux, but what I find is not related to my problem.

I installed everything on the server with Ubuntu 10.11 32bit Ubuntu 4.12 and then with 32 and 64bit and error is the same.

Can anyone give me a clue how to fix it? 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.maptools.org/pipermail/ms4w-users/attachments/20120504/8922010f/attachment.htm 