TIBCO BE engine failing with error "Failed to reserve memory for new overflow mark stack with 4096 chunks" on startup.

The error clearly points to machine running low on memory and the operating system (OS) is not able to allocate any memory to new JVMs. 

Please review machine memory usage using commands listed below:

- cat Command - Show Linux Memory Information

Entering cat /proc/meminfo in your terminal opens the /proc/meminfo file.

- free Command - Display the Amount of Physical and Swap Memory and identify overall memory usage on the server.

- top Command - The top command is useful to check memory and CPU usage per process

After reviewing the memory usage statistics we can stop any unnecessary processes using up memory or we can request system administrator to add more memory on the server.