Alert: The memory warning threshold of Manager Node has been exceeded

The Memory Warning Threshold Exceeded or Memory Critical Threshold Exceeded alerts appear in Deep Security when the maximum memory that has been allotted for Deep Security Manager has been exceeded.

The following Deep Security Manager message is also logged:

The DSM has reached the maximum memory that's been allocated for the application. (default = 4GB) <InformationItem> <Name>usedMemory</Name> <Value>3.98 GB (4,269,473,792 bytes)</Value> </InformationItem> <InformationItem> <Name>maxMemory</Name> <Value>3.98 GB (4,269,473,792 bytes)</Value>

To resolve the issue, increase the RAM available to the Deep Security Manager to a minimum of 8 GB.

Increase the allocated memory on a Windows server

1. Go to the Deep Security Manager folder and create a new file called Deep Security Manager.vmoptions.
   This is the same folder where Deep Security Manager.exe is located. For example: C:\Program Files\Trend Micro\Deep Security Manager
2. Add the following line to the file: -Xmx8g
3. Save the file and restart Deep Security Manager.

Increase the allocated memory on a Linux server

1. Go to /opt/dsmand create a new file called dsm_s.vmoptions.
   
2. Add the following line to the file: -Xmx8g
3. Save the file and restart the Deep Security service using the following command: service dsm_s restart

Verify the memory allocation change

You can confirm that the memory allocation change has taken effect by going to Administration > System Information Deep Security Manager and viewing the memory information under System Details > Manager Node.