Relevant versions: This information pertains to Artifactory version 6.x and 7.x.
If you encounter the following error in your logs:
java.lang.OutOfMemoryError: unable to create new native thread
you'll need to review several items to solve this problem.
First, increase the number of max open files or processes in /etc/security/limits.conf, and restart the application. For example:
* hard nofile 65535
* soft nofile 65535
* hard nproc unlimited
* soft nproc unlimited
Note: In SUSE Linux, you'll also need to set the DefaultTasksMax=65535 in /etc/systemd/system.conf, and restart your machine.
Next, increase your system max threads:
echo 100000 > /proc/sys/kernel/threads-max
More information about troubleshooting this issue is available HERE, HERE, and HERE.