hosts

This group lists the static cluster nodes on which the Storage processes run and specifies their main characteristics:

• Numeric node ID
• DNS host name and port that can be used to connect to a node on the IP network
• ID of the standard host configuration
• Placement in a specific availability zone, rack
• Server inventory number (optional)

Syntax

hosts:
- host: <DNS host name>
  host_config_id: <numeric ID of the standard host configuration>
  port: <port> # 19001 by default
  location:
    unit: <string with the server serial number>
    data_center: <string with the availability zone ID>
    rack: <string with the rack ID>
- host: <DNS host name>
  ...

Examples

hosts:
- host: hostname1
  host_config_id: 1
  node_id: 1
  port: 19001
  location:
    unit: '1'
    data_center: '1'
    rack: '1'
- host: hostname2
  host_config_id: 1
  node_id: 2
  port: 19001
  location:
    unit: '1'
    data_center: '1'
    rack: '1'

Kubernetes-Specific Details

When deploying YDB with a Kubernetes operator, the entire hosts section is generated automatically, replacing any user-specified content in the configuration passed to the operator. All Storage nodes use host_config_id = 1, for which the correct configuration must be specified.