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

[kimaidou]

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
>
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