Mist Event Collector

The Mist Event Collector microservice polls alarms and event data from Mist clouds by the MIST API. It collects data at regular intervals, normalizes it and publishes it to the topic for the Event Sink microservice.

This microservice is part of the Event microservice pipeline. See Understanding the Event Pipeline in Unified Assurance Concepts for conceptual information.

A default RCA COM definition is available in the MIST-DEFAULT-RCA.json file.

Mist Event Collector Prerequisites

Before deploying the microservice, confirm that the following prerequisites are met:

1. A microservice cluster is set up. See Microservice Cluster Setup.

2. The following microservices are deployed:

   • Pulsar

   • Event Sink

Deploying Mist Event Collector

To deploy the microservice, run the following commands:

su - assure1
export NAMESPACE=<namespace>
export WEBFQDN=<WebFQDN>
a1helm install <microservice-release-name> assure1/mist-event-collector -n $NAMESPACE --set global.imageRegistry=$WEBFQDN

In the commands:

• <namespace> is the namespace where you are deploying the microservice. The default namespace is a1-zone1-pri, but you can change the zone number and, when deploying to a redundant cluster, change pri to sec.

• <WebFQDN> is the fully-qualified domain name of the primary presentation server for the cluster.

• <microservice-release-name> is the name to use for the microservice instance. Oracle recommends using the microservice name (mist-event-collector) unless you are deploying multiple instances of the microservice to the same cluster.

You can also use the Unified Assurance UI to deploy microservices. See Deploying a Microservice by Using the UI for more information.

Changing Mist Event Collector Configuration Parameters

When running the install command, you can optionally change default configuration parameter values by including them in the command with additional --set arguments. You can add as many additional --set arguments as you need.

For example, set a parameter described in Default Mist Event Collector Configuration by adding --set configData.<parameter_name>=<parameter_value>. For example, --set configData.LOG_LEVEL=DEBUG.

Default Mist Event Collector Configuration

The following table describes the default configuration parameters found in the Helm chart under configData for the microservice.