[GUACAMOLE-1693] Docker Image guacamole/guacamole won't start - Cannot create VM thread. Out of system resources.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Invalid
• Affects Version/s: 1.4.0
• Component/s: guacamole-docker
• Assignee: Unassigned
• Reporter: André Müller
• Created: 07/Oct/22 15:18
• Updated: 07/Oct/22 19:32
• Resolved: 07/Oct/22 19:32

Description

When I start the guacamole/guacamole Docker image with the command:

sudo docker run --name netzgrenze-guacamole --restart unless-stopped --link netzgrenze-guacd:guacd -e MYSQL_HOSTNAME=10.201.240.120 -e MYSQL_DATABASE=guacamole -e MYSQL_USER=<dbuser> -e MYSQL_PASSWORD=<password> -d -p 8080:8080 guacamole/guacamole

it will keep restarting. I've looked at the logs, and they say

Error occurred during initialization of VM
Cannot create VM thread. Out of system resources. 

When I enter the Container with sudo docker run -it guacamole/guacamole shell and start java I'll get the same output:

guacamole@ba8c3c820f3d:/opt/guacamole$ java
Error occurred during initialization of VM
Cannot create VM thread. Out of system resources.

I deleted all Container and Images of guacamole/guacamole and pulled it again, but there was no change. The System is Ubuntu 18.04.6 LTS, and it has 4GB of Ram, with plenty of free Ram:

KiB Spch :  4039316 gesamt,  3069764 frei,   223820 belegt,   745732 Puff/Cache KiB Swap:  1044476 gesamt,  1044476 frei,        0 belegt.  3606664 verfü Spch