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List:       mapguide-internals
Subject:    RE: [mapguide-internals] RE: GDAL stability in MGOS 2.1
From:       Traian Stanev <traian.stanev () autodesk ! com>
Date:       2010-01-04 15:06:15
Message-ID: D20FC5C02CA4AB41891CFE76D91C57A97014C40DF6 () ADSK-NAMSG-02 ! MGDADSK ! autodesk ! com
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Hi Trevor,

One place to start would be by fixing the refcounting of the connection held by the \
feature reader in the provider. The PSC didn't want to fix this bug last release, and \
it is one place where this provider differs from all other providers. I remember that \
I attached a patch fixing this to the ticket concerning this. That bug may be a \
source of crashes in certain cases -- of course it is not guaranteed that it is \
causing the stability problems you are having with that provider.

Traian


-----Original Message-----
From: mapguide-internals-bounces@lists.osgeo.org \
                [mailto:mapguide-internals-bounces@lists.osgeo.org] On Behalf Of \
                Trevor Wekel
Sent: Thursday, December 31, 2009 1:14 PM
To: MapGuide Internals Mail List
Subject: RE: [mapguide-internals] RE: GDAL stability in MGOS 2.1

Hi Frank,

I am glad to see you are interested.  I will need to do some investigation to \
determine where the instability is coming from.  If I do find something in GDAL, I \
think it would be good to add an additional test to the GDAL test suite.  It would \
help to ensure GDAL Provider stability from release to release.  Maybe I'm a bit \
jaded but all too often the phrase "if it isn't tested, it's probably broken" seems \
to apply when working with complex code bases.

I can certainly help out with code changes and test suite improvements.  Let's keep \
in touch.  Hopefully my little MapGuide/GDAL stability and performance initiative \
won't drag on too long.

Thanks,
Trevor 

-----Original Message-----
From: mapguide-internals-bounces@lists.osgeo.org \
                [mailto:mapguide-internals-bounces@lists.osgeo.org] On Behalf Of \
                Frank Warmerdam
Sent: December 31, 2009 11:04 AM
To: MapGuide Internals Mail List
Subject: Re: [mapguide-internals] RE: GDAL stability in MGOS 2.1

Trevor Wekel wrote:
> Hi everyone,
> 
> Under the assumption that no else is really keen to dig around in MapGuide and \
> GDAL,  I have added an "Initiatives" page to my website.  I will make an official \
> funding request to the user list tomorrow if no one voices any concerns. 
> http://www.otxsystems.com/community-initiatives.html
> 
> 
> Yeah.  I actually like raster.  Weird...

Trevor,

Not so weird!

I would note that if folks can trigger the stability problems via direct FDO calls, \
I'm willing to spend some time digging into it.  Something like an additional test in \
the test suite or a small sample program calling into FDO.  Something I can run \
without mapguide.

Best regards,
-- 
---------------------------------------+--------------------------------
---------------------------------------+------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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