Get Node List in the Cluster

The OAP cluster is a set of OAP servers that work together to provide a scalable and reliable service. The OAP cluster supports various cluster coordinator to manage the cluster membership and the communication. This API provides capability to query the node list in the cluster from every OAP node perspective. If the cluster coordinator doesn’t work properly, the node list may be incomplete or incorrect. So, we recommend you to check the node list when set up a cluster.

This API is used to get the unified and effective TTL configurations.

• URL, http://{core restHost}:{core restPort}/status/cluster/nodes
• HTTP GET method.

{
  "nodes": [
    {
      "host": "10.0.12.23",
      "port": 11800,
      "isSelf": true
    },
    {
      "host": "10.0.12.25",
      "port": 11800,
      "isSelf": false
    },
    {
      "host": "10.0.12.37",
      "port": 11800,
      "isSelf": false
    }
  ]
}

The nodes list all the nodes in the cluster. The size of the list should be exactly same as your cluster setup. The host and port are the address of the OAP node, which are used for OAP nodes communicating with each other. The isSelf is a flag to indicate whether the node is the current node, others are remote nodes.