[Qgis-developer] [gdal-dev] QGIS hanging when opening a FileGDB on 64 bit Linux

[Even Rouault]

Le lundi 12 août 2013 22:12:11, Jeremy Palmer a écrit :
> Further to this I see that when you open a FIleGDB in QGIS 3 OGROpen calls
> made to the same database before any OGR_DS_Destroy calls are made. These
> open calls occur during the layer selection dialog, the OGR provider
> construction, and the initialisation of the QgsOgrFeatureIterator.
> 
> I'm guessing the fix for this should really be done at the Esri library
> level, but because we have no control over this maybe something can be
> done in the OGR library to reuse FileGDBAPI Geodatabase handles?

Jeremy,

I do think this is exactly the issue of 
http://forums.arcgis.com/threads/76527-CloseDatabase-hanging-on-64-bit-Lin ux-
when-same-File-Geodatabase-opened-twice

At least I reproduced it on my own PC. I've implemented a workaround in GDAL 
trunk for that issue that implements ref-counting of the FileGDBAPI Geodabase 
handle at OGR side : http://trac.osgeo.org/gdal/changeset/26307.

Even

> 
> Cheers,
> Jeremy
> 
> -----Original Message-----
> From: Jeremy Palmer
> Sent: Sunday, 11 August 2013 9:08 a.m.
> To: qgis-developer at lists.osgeo.org
> Subject: QGIS hanging when opening a FileGDB on 64 bit Linux
> 
> Hi QGIS devs!
> 
> Since the latest round of code changes (maybe over the last 2 months) I can
> no longer open Esri FileGDB in QGIS. I can read the database and QGIS
> prompts me from the FileGDB layers to add to the map, but when I select
> the layer from this dialog QGIS just hangs. I did some debugging and it
> seems to hang on the OGR_DS_Destroy call within
> QgsOgrFeatureIterator::close(). Does anyone else have this problem?
> 
> I'm running FileGDB SDK 1.3 and Ubuntu 12.04 64bit with QGIS master. I've
> tested this with the OSGeo4W win32 qgis-dev package and I don't get the
> problem.
> 
> Could this be related to this issue:
> http://forums.arcgis.com/threads/76527-CloseDatabase-hanging-on-64-bit-Lin
> ux-when-same-File-Geodatabase-opened-twice
> 
> ??
> 
> Cheers,
> Jeremy
> 
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