Run Utility Commands in a Cluster¶
You can run the nodeinfo command on a cluster node to get information about it.
nodeinfo [is_master | master_ip | master_public_dns]
nodeinfo is_master reports if the node is a Coordinator or Worker in boolean format (1/0).
nodeinfo master_ip reports the public IP address of the coordinator node.
nodeinfo master_public_dns reports the public DNS address of the coordinator node.
Add $(nodeinfo master_public_dns) to a node bootstrap script or any shell script to get the public DNS hostname of the Coordinator node.
See Understanding a Node Bootstrap Script for more information.
You can also use the QDS GUI to see the public and private IP addresses of worker and Coordinator nodes: navigate to the Control Panel > Clusters and click on the number in the Nodes column of a running cluster.
On a cluster node, run the nodeinfo command to check if the node is a worker or Coordinator or get the Coordinator node’s IP address and public DNS address. Here is an example illustration of running the nodeinfo command on an AWS cluster node:
You can also see How do I check if a node is a coordinator node or a worker node?.