FortiSIEM
FortiSIEM provides Security Information and Event Management (SIEM) and User and Entity Behavior Analytics (UEBA)
aldodelgadomtz
Article Id 337952
Description This article describes the simplest way to replace a Worker node.
Scope FortiSIEM.
Solution
  1. Before re-join a Worker, deploy a VM from scratch as follows: Fresh Installation.
  2. Be sure that the Worker is under the same release version from the Supervisor. Check the compatibility matrix: FortiSIEM Version Compatibility for Rocky Linux Based Releases.
  3. In case the behavior remains the same on the Worker, do the following:
    1. Follow the instructions in the KDB to remove the Worker correctly: Deleting Worker Node.
    2. Access the Supervisor node via CLI and execute the following command:

      cd /opt/phoenix
      rm -f .nfs.json

    3. Deploy a new Worker with 16 vCPU and 32 GB in RAM with the following KDB: Fresh Installation.
    4. Proceed to add the node again as follows: Adding a Worker Node.

  1. Finally, access via CLI to the Collector and execute the following commands in the strictly stipulated order:

mv /etc/opsd/.fortisiem4x0 /var/tmp
shutdown -r now
phProvisionCollector --update admin <password> <super IP or host> Super <collectorName>

 

Note: It is very important to re-add a Collector node because it is not able to update Worker information automatically.