Network and DB clusters in Managed Service for ClickHouse
When creating a ClickHouse cluster, you can:
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Specify a network for the entire cluster.
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Specify subnets for each host in the cluster.
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Request public access to connect to the cluster from outside Nebius AI.
You can create a cluster without specifying any subnets for the hosts if the availability zone selected for each host contains exactly one subnet of the cluster network.
Host name and FQDN
Managed Service for ClickHouse generates the name of each cluster host when creating it. This name will be the host's fully qualified domain name (FQDN). The host name and, consequently, the FQDN cannot be changed.
You can use the FQDN to access the host within a single cloud network. For more information, see the Virtual Private Cloud documentation.
Public access to a host
Any cluster host can be accessible from outside Nebius AI if you requested public access when creating the host. To connect to such a host, use its FQDN.
You cannot request a public address after creating a host; however, you can replace one of the existing hosts with a new one that has a public address.
When deleting a host with a public FQDN, the assigned IP address is revoked.