How to resolve VM Could not reserve enough space

The following “Error occurred during initialization of VM” is occur due to memory size assigned to Tomcat service is full.

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Error occurred during initialization of VM

Could not reserve enough space for object heap

Could not create the Java virtual machine.

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You need to run following commands from Shell

root@admin[/usr/local/jakarta/tomcat/bin]# export _JAVA_OPTIONS=”-Xms20m -Xmx64m -XX:MinHeapFreeRatio=20 -XX:MaxHeapFreeRatio=40 -XX:NewSize=10m -XX:MaxNewSize=10m -XX:SurvivorRatio=6 -XX:TargetSurvivorRatio=80 -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled”
Once you run above command restart the Tomcat service

root@admin[/usr/local/jakarta/tomcat/bin]#./shutdown.sh

root@admin[/usr/local/jakarta/tomcat/bin]#./startup.sh

root@admin[/usr/local/jakarta/tomcat/bin]#./catalina.sh

The above steps resolve the error occurred during initialization of vm.