Notification event being generated by Aria Operations which is unknown in Aria Operations

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

Open-Source Telegraf is triggering the alert "Notification event-identified multiple values for property: service_name, resource: …" constantly.

Environment

Aria Operations 8.18.x

Cause

Open-source Telegraf are sending out duplicate measurements to Aria Operations, causing the alert to be triggered.

Resolution

Workaround from the Aria Operations side:
This is a dynamic Notification event alert that triggers the Generic "Identified multiple values for property: %s, resource: %s" event.
Those Event alerts are generated dynamically and not defined for each object.

The workaround to overcome this alert is by disabling the below alert per the specific policy of the resource and its children.

Please note that there is a bug in alerts being triggered even when disabled in the active policy.
Thus, if the workaround approach fails, please apply this workaround.

 

Workaround from the Open-source Telegraf Agent:
The other approach is to work on the open-source Telegraf Configuration to make sure there is no redundant measurements.

For example, with multiple node names in RabbitMQ 
They can replace the tag name with the identifier 

[[inputs.rabbitmq]]
  url = "http://localhost:15672"
  username = "guest"
  password = "guest"

[[processors.rename]]
  [[processors.rename.replace]]
    tag = "node"
    dest = "identifier"

This can create unique RabbitMQ objects per node.

Additional Information

Please note that we do not provide support on the open-source Telegraf (including customizations), the customers are also responsible for preparing/cleansing/uniquifying the data to be ingested into Aria Operations.