Platform appliance high CPU usage from Java and user "yarn"

Products

• VCF Operations for Networks

Issue/Introduction

On your Aria for Operations platform node, you see high CPU usage and out of memory errors.

When you SSH into the platform node and log in to support user and run the top command, you see over 100% CPU usage for some users of the java service, like yarn, root and/or ubuntu.

From the web console, you may see out of memory errors:

Environment

Aria Operations for Networks 6.13.0
Aria Operations for Networks 6.14.0
Aria Operations for Networks 6.14.1

Resolution

To workaround this issue, reboot the platform node.

If you have a clustered environment, use the procedure to shutdown your nodes documented in KB 314428 Best practices to shutdown Aria Operations for Networks Clustered deployments.

Post reboot of nodes if the issue still exists then this need to be further triage and debugged.
Open a support case with Broadcom Support to review your Aria Operations for Networks deployment and refer to this KB. For more information, see Creating and managing Broadcom support cases.