[mapguide-users] MGOS2.0.1 & Raster Files Performanc

Thu Jun 5 12:16:29 EDT 2008

Hi,

We experience the same problems using MGOS2.0.1 with IIS on MS Server 2003
and MS Server 2008 and an ASP application (FDO Provider). We use Tiff and
MrSID files of different sizes and resolutions but the errors are always the
same as described (cannot stylize layer, out of memory, no more connections
and so on).

We now have some kind of "monitor" application and restart the mgserver
process if necessary, but this is not a really good solution because
throwing the error "no more connections..." the mgserver process does not
crash rather "refuses" to render the images.

Furthermore restarting mgserver resulting in loss of session data is really
annoying so we are looking now for some workaround, does anybody have any
idea what can be done ?

Possible ideas might be:

 - using an external image server, is there any ?
 - recovering sessions, is there any possibility ?
 - ???

Thanks for any further ideas

Hans

-----Ursprüngliche Nachricht-----
Von: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] Im Auftrag von Zac Spitzer
Gesendet: Donnerstag, 5. Juni 2008 17:14
An: MapGuide Users Mail List
Betreff: Re: [mapguide-users] MGOS2.0.1 & Raster Files Performanc

in my experience, rasters in mapguide are currently and have have been for
a while somewhat broken.

they work initially and then fall over rather quickly

the debug info on the wiki page makes absolutely no difference

z

On Thu, Jun 5, 2008 at 11:50 PM, Rahul <unicorn_admirer at yahoo.com> wrote:
> Hi Gunter,
>
>                     I already tried Creating Tile Index Config Files after
> changing the parameters for the MGOS2.0.1 and it use to create new
> connection for the Image Feature source .I can preview the layers using
> MapGuide Studio2009 but after using Tile Index as well as built in
pyramids
> for ecw file ,I still use to get the same errors as below.
>
>
> * Out of memory (Infact i tried to run some batch file as well as another
> script to monitor the memory usage and restart the mapguide service to
avoid
> memeory leakage.)
> * Failed to stylize layer
> * with some ecw files when zoom at certain scales no image display and get
> the error (Cannot create any more connections to the OSGeo.Gdal FDO
> provider)
>
> Thks
> Max !!
>
>
> ----- Original Message ----
> From: Gunter Becker <gunter.becker at CSOGIS.DE>
> To: mapguide-users at lists.osgeo.org
> Sent: Thursday, June 5, 2008 8:05:11 PM
> Subject: Re: [mapguide-users] MGOS2.0.1 & Raster Files Performance
>
>
> Hi Max,
>
> please habe a look at  http://trac.osgeo.org/fdo/wiki/FdoGdalNotes
Creating
> Tile Index Config Files . Maybe you can build a tile index for your
> ecw-files. That will minimiz the file access. But I don't know if this
works
> with ecw.
>
> Gunter
>
>
> max_samart wrote:
>>
>> Hi All,
>>             I am using PHP+Apache+Windows Server 2003  and i have around
>> 50 ecw files in one folder, i created the Image Feature Source using the
>> OSGeo.Gdal FDO provider and able to view the raster data overlaid with
the
>> vector data but the problem is about the performance and sometime it use
>> to fail to stylize layer due to Cannot create any more connections to the
>> OSGeo.Gdal FDO provider  as well as the server also use to give the error
>> Please try your operation later as the resource was busy:
>> Library://Raster/Data/Images.FeatureSource .
>> How to solve the issue.
>>
>> Thks
>> Max !!
>>
>>
----------------------------------------------------------------------------
--------------------------
>> Error
>> <2008-06-05T15:41:04>    Administrator
>>  Error: Failed to stylize layer: Image
>>         Cannot create any more connections to the OSGeo.Gdal FDO
provider.
>>  StackTrace:
>>   - MgMappingUtil.StylizeLayers line 775 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\services\mapping\MappingUtil.cpp Failed
>> to stylize layer: Image
>> Cannot create any more connections to the OSGeo.Gdal FDO provider.
>>
>> <2008-06-05T15:42:26>    Administrator
>>  Error: Please try your operation later as the resource was busy:
>> Library://Raster/Data/Images.FeatureSource
>>  StackTrace:
>>   - MgResourceServiceHandler.ProcessOperation line 80 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\services\resource\ResourceServiceHandler.cpp
>>   - MgOpDeleteResource.Execute line 97 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\services\resource\OpDeleteResource.cpp
>>   - MgServerResourceService.DeleteResource line 750 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\services\resource\ServerResourceService.cpp
>>   - MgServerFeatureService.NotifyResourcesChanged line 1457 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\services\feature\ServerFeatureService.cpp
>>   - MgFdoConnectionManager.RemoveCachedFdoConnection line 1006 file
>>
>>
d:\buildforgeprojects\mapguide_open_source_v2.0\build_27.16\mgdev\server\src
\common\manager\FdoConnectionManager.cpp Please
>> try your operation later as the resource was busy:
>> Library://Raster/Data/Images.FeatureSource
>>
>>
----------------------------------------------------------------------------
----------------------------
>>
>>
>>
>> _______________________________________________
>> mapguide-users mailing list
>> mapguide-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>
>>
>
> --
> View this message in context:
>
http://www.nabble.com/MGOS2.0.1---Raster-Files-Performance-tp17668649p176693
60.html
> Sent from the MapGuide Users mailing list archive at Nabble.com.
>
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>
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>

-- 
Zac Spitzer -
http://zacster.blogspot.com (My Blog)
+61 405 847 168
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