Failed to manage Aria operations for logs when new working nodes adding

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

The existing nodes consist of 3 nodes

After 3 new worker nodes adding, cluster become unstable and daily maintenance is impacted 

The status of new adding worker nodes show Down when checked on each new adding node, but show Up when checked on existing 3 nodes

Environment

Aria Operations for Logs 8.18.x

Resolution

In case DFW rule existing on cluster nodes, make sure the required ports are opened for cluster communication.

More details on the port please refer to below official doc

https://techdocs.broadcom.com/us/en/vmware-cis/aria/aria-operations-for-logs/8-18/aria-operations-for-logs-8-18/security-considerations/log-insight-firewall-recommendations.html