[mapserver-users] Re: Mapserver /tmp files appearing all of a sudden w/CONTEXT parameter used

[Stephen Woodbridge]

On 11/23/2011 5:16 PM, myOpenLayersUName wrote:
> Well, I've tried debugging Mapserver to figure this out and have learned a
> couple of things...but I still haven't solved the problem re: why these tmp
> files are suddenly appearing in the /tmp directory.
>
> I thought perhaps that some debugging had gotten turned on somewhere to
> cause those files to appear now, but learned, as I stepped through
> mapcontext.c and maphttp.c that the context file is always written out in
> this process. It's simply the "caching" location that dictates where.
>
> So, I went looking around and determined that up until 2 weeks ago, these
> files were being written to a directory called "ogc_tmp". That directory is
> the one we point to with the IMAGEPATH/IMAGEURL parameters included in the
> imagepath.inc.map file pointed to with this line in the wmsContextServer map
> file: INCLUDE "../../../mapserv/conf/imagepath.inc.map"
>
> Its contents are:
> IMAGEPATH "/data/nl18/httpd/htdocs/ogc_tmp/"
> IMAGEURL "/ogc_tmp/"

Have you checked that you apache config files have not changed in some 
way. For example, does it map IMAGEPATH to the IMAGEURL?

Also, when you test for accessibility to a particular path make sure you 
first so something like:

sudo www-data

where www-data is the username of the apache process, then see if you 
can cd to the appropriate directories and try to touch a file there to 
make sure you have perms to create/update files.

-Steve W

> I thought, perhaps, that all of sudden maybe the directory had changed or
> something so now Mapserver couldn't find it from the location its defined at
> in the mapfile, but when I cd into the directory that contains the
> wmsContextServer.map file, I can do a directory listing of
> "/data/nl18/httpd/htdocs/ogc_tmp/" and see the contents of the directory. I
> went to the location of the Mapserver executable in /cgi-bin and did the
> same and can see the directory from there also.
>
> But, am I on the right track here? All the other temporary files continue to
> be sent to the /ogc_tmp/ directory (image files, for example). It's only the
> contexts that are being placed in the /tmp directory now.
>
> So, besides this IMAGEPATH setting (which doesn't appear to have changed
> any, either in the wmsContextServer.map file or in the environment itself),
> is there some other place that that ogc_tmp directory might be getting
> specified? And when Mapserver is unable to find whatever place that other
> place is telling it to find /ogc_tmp it's defaulting to /tmp? Would
> Mapserver do that...default to /tmp if it can't find a specified location
> for something?
>
> I've been comparing source-controlled map files for days now trying to find
> what's changed and is causing these files to suddenly appear in this new
> location. If anyone can think of ANYTHING that might point me somewhere
> useful, I would certainly appreciate it.
>
> cheers,
> jtm
>
>
>
>
>
> --
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