[GRASS-dev] g.gui.animation freezes when loading strds

[Anna Petrášová]

On Thu, Aug 10, 2017 at 11:16 AM, Pietro <peter.zamb at gmail.com> wrote:
> Hi Veronica,
>
> On Tue, Aug 8, 2017 at 3:46 PM, Veronica Andreo <veroandreo at gmail.com>
> wrote:
>>
>> I've also experienced the freezing issue (dunno if it the same thing or
>> not). Here, the rendering freezes if strds has more than 500 maps. I do not
>> even get to the export part. Cancel does not close it, so I have to kill it
>> (trunk r71319).
>
> Same problem here, when I reach 502 maps raise the following exception:
>
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/wx-3.0-gtk2/wx/_core.py", line
> 16762, in <lambda>
>   File "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/frame.py",
> line 194, in SetAnimations
>   File
> "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/controller.py",
> line 305, in SetAnimations
>   File
> "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/controller.py",
> line 328, in _setAnimations
>   File
> "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/controller.py",
> line 407, in _updateBitmapData
>   File
> "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/provider.py", line
> 234, in Load
>   File
> "/home/pietro/.local/grass-7.3.svn/gui/wxpython/animation/provider.py", line
> 366, in Render
>   File "/usr/lib64/python2.7/multiprocessing/__init__.py", line 218, in
> Queue
>   File "/usr/lib64/python2.7/multiprocessing/queues.py", line 63, in
> __init__
>   File "/usr/lib64/python2.7/multiprocessing/synchronize.py", line 147, in
> __init__
>   File "/usr/lib64/python2.7/multiprocessing/synchronize.py", line 75, in
> __init__
> OSError: [Errno 24] Too many open files
>
> But checking the number of opened file on my system, it seems two order
> lower than the maximum:
>
> $ cat /proc/sys/fs/file-nr
> 23422   0       1628292
> $ cat /proc/sys/fs/file-max
> 1628292
>
> I’ve attached also the complete log of the command in DEBUG mode, but I was
> not able to understand where the problem could be. I’ve also rebooted just
> to be sure that the system was fresh, but again after 502 maps it breaks
> with the same error.

I just tested 1100 maps without problem. In case this is relevant:

ulimit -n
1024

>
> Any ideas?
>
> Pietro
>
>
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