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

[Matthias Kuhn]

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
> <mailto: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
>     <mailto: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
>         <mailto: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
>
>
>
>
>
>
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-- 
Matthias Kuhn
OPENGIS.ch - https://www.opengis.ch
Spatial • (Q)GIS • PostGIS • Open Source

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