Currently supported versions are Hazelcast 3.2 to 3.10.
- Node name¹
- 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 label for the Hazelcast instances by using the node address and the cluster name, e.g.
- 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)
- Local Member Status (starting with Hazelcast 3.3²)
- 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, e.g.
my-cluster-5c07d2. In older Hazelcast versions only the group name is used, e.g.
- Node count
- Cluster Status (starting with Hazelcast 3.3²)
¹ As returned by
² Starting with Hazelcast 3.3 the public methods
HazelcastInstance::getPartitionService()::isLocalMemberSafe() is used. For older Hazelcast versions the health status is derived from an internal “has ongoing migrations” status on each local node.
The Hazelcast cluster health status is aggregated from each Hazelcast node. This is exactly what
HazelcastInstance::getPartitionService()::isClusterSafe() does internally, but without creating additional overhead of calling this method.