Monitoring Hazelcast IMDG

After you install the Instana host agent, the Hazelcast IMDG sensor is automatically installed and enabled. You can view metrics that are related to Hazelcast IMDG in the Instana UI.

Supported information

Supported versions

Currently, supported versions are 3.2 to 5.3.6.

Supported client-side tracing

For this technology, Instana supports client-side tracing for the following language:

Viewing metrics

To view the metrics, complete the following steps:

  1. In the sidebar of the Instana UI, select Infrastructure.
  2. Click the specific monitored host.

Then, you can see a host dashboard with all the collected metrics and monitored processes.

Node-level

Configuration data

  • Node name (returned by HazelcastInstance::getName()).
  • Node address
  • Node UUID
  • Group name
  • Cluster ID (starting with Hazelcast 3.5)
  • Version (starting with Hazelcast 3.2)
  • OpenSource/ Enterprise version (starting with Hazelcast 3.2)
  • Lite Member Status (starting with Hazelcast 3.6)

Instana extracts the labels for the Hazelcast instances by using the node address and the cluster name, for example [127.0.0.1:5701]@my-cluster-5c07d2.

Performance metrics

  • Operation Count (starting with Hazelcast 3.2)
  • MigrationQueue Size
  • EventQueue Size (starting with Hazelcast 3.2)
  • Distributed Objects (starting with Hazelcast 3.5)
  • ExecutionService Queue Size (starting with Hazelcast 3.2)
  • Connected Client Count (starting with Hazelcast 3.2)

Health Signatures

Each sensor has a curated knowledge base of health signatures that are evaluated continuously against the incoming metrics and are used to raise issues or incidents depending on user impact.

Built-in events trigger issues or incidents based on failing health signatures on entities, and custom events trigger issues or incidents based on the thresholds of an individual metric of any entity.

For more information about built-events for the Hazelcast node, see the Built-in events reference.

Cluster-level

Configuration data

  • Cluster ID
  • Group name

Starting with Hazelcast 3.5, the cluster name is a combination of the configured group name and the first characters of the cluster Id, for example, my-cluster-5c07d2. In older Hazelcast versions, only the group name is used, for example, my-cluster.

Performance metrics

  • Node count

Health Signatures

For more information about built-events for the Hazelcast cluster, see the Built-in events reference.