In some cases, you may have to increase the java heap size for the kernel:
- Open launcher. properties file from /ServerKernel/etc folder.
- Change the value of Kernel JVM Memory from 512MB to 1024MB (or more). (see figure below).
- Save the file and restart the Kernel and WebRunner.
Please note that,
Java heap size for Kernel: 60% of the total memory
Java heap size for WebRunner: 20 % of the total memory
For 8GB RAM - Kernel = 4.8GB; WebRunner = 1.6GB
For 16GB RAM – Kernel = 9.6GB; WebRunner = 3.2GB