Trevor, I don't know exactly because my colleagues are trying out MG OS 2.2. Basic information I have is that when they run concurrent tests with grinder MG crashes ( only using gdal ).
I was not aware of this link before and that gdal version. I will forward it to them and post our findings. Thanks, Haris On Sun, May 29, 2011 at 6:04 PM, Trevor Wekel <[email protected]> wrote: > Hi Haris, > > What issues are you seeing with MG OS 2.2 and GDAL? I have received good > feedback on the provider in 2.2 with the VS2008 compiled GDAL libs > http://trac.osgeo.org/mapguide/wiki/MGOS22GdalProvider > > > Regards, > Trevor > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Haris Kurtagic > Sent: May 29, 2011 3:25 AM > To: MapGuide Users Mail List > Subject: Re: [mapguide-users] RE: Changing custom PoolSize for GDAL has no > effect > > Hi Traian > > We are trying to use MG OS 2.2 with GDAL and it is not stable. > > Right now at customer sites we are using 2.1 with GDAL with patches we > made some time ago. I remember we had lot of discussion around gdal/mg > but can't remember whole story. > > I remember the issue was with concurrent access to gdal provider ( and > also others ). > > If I am right at the end, there were some bigger changes made in MG > connection manager to solve those issues ? > In two patches you submitted, there are basically two things : added > ref count to connection and creating copy of the schema ? > The refcount change is related or not to changes made in MG connection > manager? > > Thanks, > Haris > > On Sat, May 28, 2011 at 6:32 PM, Traian Stanev > <[email protected]> wrote: >> >> >> Hi Zack, >> >> >> >> The MapGuide PSC was against this patch back then. It is up to them to >> decide if they want it now. It's been too long and I no longer have a >> MapGuide environment set up to test it with the latest code, so it would be >> up to someone who needs this to check it in and test it, or I can merge it >> in without testing. >> >> >> >> Traian >> >> >> >> >> >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Zac Spitzer >> Sent: Saturday, May 28, 2011 2:38 AM >> >> To: MapGuide Users Mail List >> Subject: Re: [mapguide-users] RE: Changing custom PoolSize for GDAL has no >> effect >> >> >> >> That patch sounds pretty important, can we commit it? >> >> On Sun, Apr 17, 2011 at 3:18 AM, Traian Stanev <[email protected]> >> wrote: >> >> Not sure if that would help, but a patch I did a while back to fix >> refcounting issues with the GDAL provider also included an optimization >> about config file parsing which sped up opening of new GDAL connections by a >> factor of 10 at least. >> >> The patch is attached to this ticket: >> http://trac.osgeo.org/mapguide/ticket/462 called >> gdal_nomutex_cachedschema.patch. >> >> It was a long time ago, but as far as I remember this optimization was key >> in case one wants to enable pooling of GDAL connections. It also removed the >> internal global mutex in the provider which made it work single-threaded >> regardless of the setting in the MapGuide configuration. That patch requires >> my addref patch attached to the same ticket. >> >> Traian >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Trevor Wekel >> Sent: Friday, April 15, 2011 12:26 AM >> To: MapGuide Users Mail List >> Subject: RE: [mapguide-users] RE: Changing custom PoolSize for GDAL has no >> effect >> >> Hi Gunter, >> >> Since only one raster feature source can be loaded at any given time, you >> may up with some additional load overhead if your config.xml (raster >> catalog) documents are fairly large. As far as I know, the config.xml >> information will only remain cached for the lifetime of the connection to >> the raster feature source. With 35 raster feature sources, it may be >> getting parsed for every raster request. >> >> Regards, >> Trevor >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Gunter Becker >> Sent: April 13, 2011 2:05 PM >> To: [email protected] >> Subject: [mapguide-users] RE: Changing custom PoolSize for GDAL has no >> effect >> >> Thanks Trevor, >> >> can I suppose that my configuration (35 raster featuresources, 50 concurrent >> user) could work with >> the single-threaded GDAL Provider or does the provider means a bottleneck >> for my application? >> >> The repository error: I will try final release as soon it is available and >> if the error exists I will post it here. I supposed it has to do something >> with the rasterprovider since I've not found any hint in logfiles on what's >> going on. Even with full error report enabled. >> >> Funding the work on the GDAL Provider: I have to discuss this with my >> company (personally I'd like to fund but it is not my decision) >> >> Thanks, Gunter >> >> -- >> View this message in context: >> http://osgeo-org.1803224.n2.nabble.com/Changing-custom-PoolSize-for-GDAL-has-no-effect-tp6268276p6270448.html >> Sent from the MapGuide Users mailing list archive at Nabble.com. >> _______________________________________________ >> mapguide-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapguide-users >> >> _______________________________________________ >> mapguide-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapguide-users >> >> >> -- >> Zac Spitzer >> Solution Architect / Director >> Ennoble Consultancy Australia >> http://www.ennoble.com.au >> http://zacster.blogspot.com >> +61 405 847 168 >> >> >> >> _______________________________________________ >> mapguide-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapguide-users >> >> > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
