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Need to understand and configure VNA memory


Article ID: 196838


Updated On:


CA Performance Management - Usage and Administration CA Virtual Network Assurance CA Spectrum DX NetOps


The VNA server is slow since I added several new engines.

Where can I manage how much memory VNA is set to use?


VNA is a java application that runs ‘within’ Wildfly.

During the install the default memory value is 4g


DX NetOps Virtual Network Administration any version


Since VNA runs ‘within’ Wildfly, we need to look at the memory settings for Wildfly server.



     if [ "x$VNA_MAX_MEM" = "x" ]; then


Adjust this value as needed but make sure to leave enough resources for the OS and mysql.

In large environments, set this to 16GB.

Additional Information

You can monitor the heap usage for VNA using this techdoc:

Make sure your install meets minimum specs: