Too Many Open Files warning on MacPro

I spent the last several hours creating a scene and finally hit the RENDER button, only to be greeted by the warning "Too Many Open Files".
I am on a Mac running 10.11.6
Ideas?

Please help.

Thanks very much.

Ken

I faced the same problem (and posted about it in the forum). I suspect there is a bug that means that Fusion is leaking "file descriptors" basically opening more files than necessary, until it hits an operating system limit. As a precaution, don't leave Fusion on when it's idle (e.g. overnight) because it will continue opening files.

Also, I was able to increase the operating system's limit of open files by issuing these 5 commands in the terminal (still testing on whether it made a difference):

Code: Select all

echo kern.maxfiles=65536 | sudo tee -a /etc/sysctl.conf
echo kern.maxfilesperproc=65536 | sudo tee -a /etc/sysctl.conf
sudo sysctl -w kern.maxfiles=65536
sudo sysctl -w kern.maxfilesperproc=65536
ulimit -n 65536 65536


Also experienced the same problem a few times on my iMac running 10.12.2 with 24GB memory.
Happens when I leave Fusion open and am doing something else like watching youtube.

If a few people are experiencing it already, I think it must be a leak. I've outlined the problem in a bit more detail in this post:

[url]
viewtopic.php?f=22&t=55486
[/url]

It also includes a line that you can use in the system terminal to check how many files Fusion has opened (run multiple times to watch it go up!)

So do we contact the developers directly?

Yep. Me too.

lsof on fusion's main process shows it slowly creeping up over time when doing a render (haven't noticed the issue other times).

Seems like it should be an easy bug to find/fix...