[mapserver-users] . RE: Overriding MapServer Map File "DATA" parameter
Asad Ullah
Asad.Ullah at sigmaspace.com
Tue Mar 29 12:28:16 PDT 2011
Tried the solution below #1 but did not work. More suggestion please!
Asad
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Today's Topics:
1. RE: Overriding MapServer Map File "DATA" parameter
(Lime, Steve D (DNR))
2. FOSS4G 2011 call for papers reminder (Lime, Steve D (DNR))
3. RE: Too many open files... (Lee Meilleur)
----------------------------------------------------------------------
Message: 1
Date: Tue, 29 Mar 2011 11:24:26 -0500
From: "Lime, Steve D (DNR)" <steve.lime at state.mn.us>
Subject: [mapserver-users] RE: Overriding MapServer Map File "DATA"
parameter
To: Asad Ullah <Asad.Ullah at sigmaspace.com>,
"mapserver-users at lists.osgeo.org" <mapserver-users at lists.osgeo.org>
Message-ID:
<A7F7B3043D3BF0438F1206BAA3C9933C08310A86A0 at MNMAIL05.ead.state.mn.us>
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You need to set a validation pattern to muck with the DATA attribute. You'd add something like this to your layer definition:
VALIDATION
'data' '^terr_.*\.vrt$'
END
Steve
From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Asad Ullah
Sent: Tuesday, March 29, 2011 10:43 AM
To: mapserver-users at lists.osgeo.org
Subject: [mapserver-users] Overriding MapServer Map File "DATA" parameter
List,
I am trying to override virtual raster (.vrt) file defined in mapfile with a different one from a list of vrt files. I am using Opnelayers and Mapserver 5.6.6 to create map. In Openlayers, I have tried:
var Terra250tif = new OpenLayers.Layer.MapServer( "Terra250m_bands1-4-3",
"http://192.225.64.118/cgi-bin/mapserv?",
{
layers:"Terra250tif","map.layer[Terra250tif]":"DATA terr_ndvi.vrt",
map: '/usr/local/apache/htdocs/mapfiles/rrglobal_terra_250m_2011052jpg.map'
}, {singleTile:false});
The relevant part of the mapfile is:
LAYER
NAME "Terra250_367jpg"
TYPE RASTER
STATUS DEFAULT
OFFSITE 0 0 0
PROJECTION
"init=epsg:4326"
END
DATA "terr_250m_2011052jpg.vrt"
CLASS
STYLE
BACKGROUNDCOLOR 255 255 255
END
END
END
I looked at "mapserver.osgeo.org/cgi/controls.html....." but that did not helped. So, could anyone help with this.
Thanks,
Asad
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Date: Tue, 29 Mar 2011 11:26:58 -0500
From: "Lime, Steve D (DNR)" <steve.lime at state.mn.us>
Subject: [mapserver-users] FOSS4G 2011 call for papers reminder
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Message: 3
Date: Tue, 29 Mar 2011 11:37:15 -0500
From: Lee Meilleur <lee.meilleur at gis.leg.mn>
Subject: RE: [mapserver-users] Too many open files...
To: Stephen Woodbridge <woodbri at swoodbridge.com>,
"mapserver-users at lists.osgeo.org" <mapserver-users at lists.osgeo.org>
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The problem ended up being an issue with ulimit, the parameters I entered were not taking. I found the page below which seems to have resolved the issue. Thanks again for all of the suggestions.
http://www.xenoclast.org/doc/benchmark/HTTP-benchmarking-HOWTO/node7.html
Lee
-----Original Message-----
From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Stephen Woodbridge
Sent: Monday, March 28, 2011 5:05 PM
To: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] Too many open files...
Lee,
I think I have run into this before.
Turn off SELinux if it is running and I bet that is it.
Otherwise, try building mapserver from source, maybe you ahve a library or rpm packaging issue.
-Steve W
On 3/28/2011 5:57 PM, Jim Klassen wrote:
>
> Are you running anything else significant on the machine?
>
> It would generally be very difficult for MapServer, running in CGI
> mode, to use up all the open files.
>
> The only cases I can think of that could be related to MapServer
> serving shapefiles would be (1) FastCGI and a bug that isn't closing
> files. If this is the case, the issue should go away for awhile after
> you restart apache. (2) if you have some sort of tileindex with a
> huge number of items in it or a tileindex that points back to itself.
>
> Otherwise, I could see this if something else on the machine is using
> up all the file handles (globally or per user).
>
> Another random thought... is there some interaction with SELinux
> (assuming you have SELinux enforcing)?
>
> I think you said this behavior was new... if so, has anything changed
> on the machine lately?
>
> Sorry I can't be more helpful.
>
> Jim K
>
> On Mar 28, 2011, at 4:45 PM, Lee Meilleur wrote:
>
>> Fedora 12 Apache 2.2.14 Prefork MPM
>>
>> ./shp2img: error while loading shared libraries: librx.so.0: cannot
>> open shared object file: No such file or directory (this was news to
>> me)
>>
>> Serving shapefiles only.
>>
>> MapServer version 5.6.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
>> OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE
>> SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
>> SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER
>> SUPPORTS=THREADS SUPPORTS=GEOS INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR
>> INPUT=GDAL INPUT=SHAPEFILE
>>
>> Thanks
>>
>> -----Original Message----- From:
>> mapserver-users-bounces at lists.osgeo.org
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Stephen
>> Woodbridge Sent: Monday, March 28, 2011 4:29 PM To:
>> mapserver-users at lists.osgeo.org Subject: Re: [mapserver-users] Too
>> many open files...
>>
>> On 3/28/2011 5:05 PM, Lee Meilleur wrote:
>>> Hello,
>>>
>>> Has anyone run into the error: "Too many open files: couldn't set
>>> child process attributes: /var/www/cgi-bin/mapserv"? This error
>>> shows up in an Apache error_log. A broken image now shows up for
>>> MapServer layers since this started. I've tried changing the ulimits
>>> or the MaxRequestsPerChild for Apache with no luck.
>>> Any other ideas?
>>
>> You probably need to give us more information like:
>>
>> Which OS? Which Apache version? Which Apache MPM module are you
>> using? /var/www/cgi-bin/mapserv -v output?
>>
>> Does this happen when you run shp2img? What are you serving via
>> mapserver? vectors, imagery, database, etc?
>>
>> -Steve W _______________________________________________
>> mapserver-users mailing list mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
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>
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