Using Guacamole fills up Linux Host System Device Volume and eventually causes host crash

[Oyvind <10...@compuserve.com>]

I have Guacamole 1.3.0 installed in a container on my QNAP host system. Using Guacamole to Connect to a Remote computer, causes the exhaustion of certain host system volumes, and eventually the host will crash.




Observed Result:
I launch Guacamole and connect to a Remote computer using either RDP or VNC. After a while, my Host OS (QTS) throws the following error Message:



When checking the host file system, I can see that when I use Guacamole to connect to a remote device, the following system storage space is gradually filled up until it eventually exhaust, causing the above error message:



Rebooting the host server restores full operation again, for a while.
I have several different QNAP NAS models with identical base OS/Docker configuration running many different containerized applications without similar problems. This situation only happens when I use Guacamole to connect to any remote computer.  Only launching the Guacamole main menu does not cause any problems, but as soon as I connect to a remote device, this System Storage Mount begins to fill up at a pace of approximately 100K/Sec.  According to QNAP, this mounted device is designed to store system advanced libraries and tools/utilities. If I disconnect from the remote computer and returns back to the Guacamole main menu, the filling of this device mount stops. If I connect again, it continues to fill.

Any ideas/suggestions to help me debug this situation is much appreciated.

Kind regards