Please make sure to properly configure memory allowance of Unimus Core:
Configuring memory usage
RAM requirement is for the Unimus Core service only.
You have to have the required amount of RAM for the OS and other services on the system.
Up to 200 devices polled by Core
512 MB RAM
2-core CPU
200 - 1000 devices polled by Core
1 GB RAM
2-core CPU
1000 - 5000 devices polled by Core
2 GB RAM
4-core CPU
5000 - 10000 devices polled by Core
4 GB RAM
8-core CPU
10000+ devices polled by Core
Please contact us to properly specify the environment needs for your deployment.