[Qgis-developer] Memory leak in QGIS 2.14 with a Shapefile

[kimaidou]

Thanks Nyall,

I will build last master and check it asap.

Cheers,
Michaël

2016-05-10 6:25 GMT+02:00 Nyall Dawson <nyall.dawson at gmail.com>:

> On 10 May 2016 at 03:38, kimaidou <kimaidou at gmail.com> wrote:
> > Hi
> >
> > I just tested with a freshly built QGIS release-2_14 , and the issue
> > remains.
> > The easiest way to reproduce is to zoom back and forth from big scales (
> ~
> > 1:25 000 ) to layer extent scale ( ~ 1:600 000 )
>
> Should be fixed by
>
> https://github.com/qgis/QGIS/commit/6b80518a5b55ab30fb19493266d5626d0f89d26b
>
> There was a leak in the OGR provider when a feature had null geometry
> and a filter rect was set on a feature request (such as when rendering
> a map).
>
> I also fixed another (potentially huge?) memory leak in the python code.
>
> Would appreciate testing and feedback on whether this has made a big
> difference for you!
>
> Nyall
>
> >
> > Good evening/morning
> > Michaël
> >
> > 2016-05-09 15:02 GMT+02:00 kimaidou <kimaidou at gmail.com>:
> >>
> >> Hi Matthias,
> >>
> >> Not yet, I need to build QGIS master before being able to report back
> >> Thanks for your answer
> >>
> >> 2016-05-09 14:59 GMT+02:00 Matthias Kuhn <matthias at opengis.ch>:
> >>>
> >>> Have you tested with either the latest 2.14 nightly or master nightly?
> >>> An issue with OGR connection pooling has been resolved recently. And I
> >>> wonder if that could be related.
> >>>
> >>>  -- Matthias
> >>>
> >>>
> >>> On 05/09/2016 02:28 PM, kimaidou wrote:
> >>>
> >>> I created an issue about it : http://hub.qgis.org/issues/14792
> >>>
> >>> 2016-05-09 11:48 GMT+02:00 kimaidou <kimaidou at gmail.com>:
> >>>>
> >>>> Hi again,
> >>>>
> >>>> I also forgot to mention that I have no memory leak when using the
> same
> >>>> dataset in PostGIS ( tested by importing the Shapefile in PostGIS with
> >>>> shape2pgsql )
> >>>>
> >>>> Michaël
> >>>>
> >>>> 2016-05-09 11:07 GMT+02:00 kimaidou <kimaidou at gmail.com>:
> >>>>>
> >>>>> I forgot to mention the steps to reproduce the bug, and the
> precautions
> >>>>> to take :
> >>>>>
> >>>>> * open the project in QGIS 2.14 ( I have not tested with older
> >>>>> versions)
> >>>>>
> >>>>> * open a terminal and use this kind of command to monitor QGIS memory
> >>>>> consumption : htop, or ps with
> >>>>> watch -n1 'ps -aux --sort -pmem | head -5'
> >>>>>
> >>>>> * Navigate through the project by zooming in and out, pan, etc. I
> think
> >>>>> you emphasize the memory leak by displaying the layer at small scale
> ( with
> >>>>> many buildings displayed)
> >>>>>
> >>>>> * Be aware that this will increase the memory, so keep an eye on the
> >>>>> memory consumption so that your system has enough free memory to work
> >>>>> properly.
> >>>>>
> >>>>> Michaël
> >>>>>
> >>>>> 2016-05-09 11:00 GMT+02:00 kimaidou <kimaidou at gmail.com>:
> >>>>>>
> >>>>>> Hi devs,
> >>>>>>
> >>>>>> I have just found a memory leak in QGIS Desktop (and server) with
> the
> >>>>>> project available in [1] ( a 20Mo tar.bz2 )
> >>>>>>
> >>>>>> This is a very simple project with only one buildings Shapefile (
> SHP
> >>>>>> 68Mo). This layer has been exported from PostGIS from a query wich
> aimed to
> >>>>>> simplify the building for fast rendering.
> >>>>>>
> >>>>>> The geometries have been simplified ( I used SnapToGrid, then
> >>>>>> (St_Dump(St_Union(a.geom)))  to remove as many nodes as possible )
> >>>>>>
> >>>>>> The layers has ~ 700 000 features.
> >>>>>>
> >>>>>> Has anyone encoutered such a leak ?
> >>>>>>
> >>>>>> [1]
> >>>>>>
> https://framadrop.org/r/_7VsZtvzdU#+eJHHPPOIdVcgj/AUp8V91T9m6gmO7/XCh6uOhzP7ro=
> >>>>>>
> >>>>>> Cheers,
> >>>>>>
> >>>>>> Michaël
> >>>>>
> >>>>>
> >>>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Qgis-developer mailing list
> >>> Qgis-developer at lists.osgeo.org
> >>> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> >>> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> >>>
> >>>
> >>> --
> >>> Matthias Kuhn
> >>> OPENGIS.ch - https://www.opengis.ch
> >>> Spatial • (Q)GIS • PostGIS • Open Source
> >>>
> >>>
> >>> _______________________________________________
> >>> Qgis-developer mailing list
> >>> Qgis-developer at lists.osgeo.org
> >>> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> >>> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> >>
> >>
> >
> >
> > _______________________________________________
> > Qgis-developer mailing list
> > Qgis-developer at lists.osgeo.org
> > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20160510/b3c4bcb4/attachment-0001.html>