4.2
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Naming A Node

Node name is the name given to a node. It is how nodes are identified within the cluster and must be unique to the cluster.
The name cannot contain any of the following characters: .,*> . Dot, comma, asterisk, greater than, or whitespace.
The name is set in the harperdb-config.yaml file using the clustering.nodeName configuration element.
Note: If you want to change the node name make sure there are no subscriptions in place before doing so. After the name has been changed a full restart is required.
There are multiple ways to update this element, they are:
  1. 1.
    Directly editing the harperdb-config.yaml file.
clustering:
nodeName: Node1
Note: When making any changes to the harperdb-config.yaml file HarperDB must be restarted for the changes to take effect.
  1. 2.
    Calling set_configuration through the operations API
{
"operation": "set_configuration",
"clustering_nodeName":"Node1"
}
  1. 3.
    Using command line variables.
harperdb --CLUSTERING_NODENAME Node1
  1. 4.
    Using environment variables.
CLUSTERING_NODENAME=Node1