Unable to Migrate Database agents due to host performance or high resource usage of RAM or CPU. Migration fails to validate or complete the move selected Database or Database and Infrastructure agents if selected.
Low free RAM
example: 98% constant usage which is inadequate when bulk operations trigger or during peak business hours.
Java Heap (-Xmx, -Xms) exhaustion
example: 150 agents on Agent Manager with 1024M heap set ( -Xms/-Xmx parameters )
Memory reservations are not set on the Virtual Machine
Please refer to the Foglight for Databases Deployment Guide for current architecture sizing information.
Install more Physical RAM in the host, or if host is a VM, allocated additional RAM to the VM.
Modify the JVM heap on the Foglight Agent Manager as per the Foglight for Databases deployment guide recommendations
To change the memory settings:
An additional tuning step is: Increase the disk space parameter of the FglAM, following the steps below:
Set virtual machine reservations as described in KB 176968
A restart of either the FMS, FglAM or a reboot of the host is usually required to reinitialize the Foglight processes to use the new memory.