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Yandex Managed Service for ClickHouse

Method listHosts

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Retrieves a list of hosts for the specified cluster.

HTTP request

GET https://mdb.api.cloud.yandex.net/managed-clickhouse/v1/clusters/{clusterId}/hosts

Path parameters

Parameter Description
clusterId Required. ID of the ClickHouse cluster. To get the ClickHouse cluster ID use a list request. The maximum string length in characters is 50.

Query parameters

Parameter Description
pageSize The maximum number of results per page to return. If the number of available results is larger than pageSize, the service returns a nextPageToken that can be used to get the next page of results in subsequent list requests. The maximum value is 1000.
pageToken Page token. To get the next page of results, set pageToken to the nextPageToken returned by a previous list request. The maximum string length in characters is 100.

Response

HTTP Code: 200 - OK

{
  "hosts": [
    {
      "name": "string",
      "clusterId": "string",
      "zoneId": "string",
      "type": "string",
      "resources": {
        "resourcePresetId": "string",
        "diskSize": "string",
        "diskTypeId": "string"
      },
      "health": "string",
      "services": [
        {
          "type": "string",
          "health": "string"
        }
      ],
      "subnetId": "string",
      "assignPublicIp": true,
      "shardName": "string"
    }
  ],
  "nextPageToken": "string"
}
Field Description
hosts[] object

Requested list of hosts for the cluster.
hosts[].
name		 string

Name of the ClickHouse host. The host name is assigned by MDB at creation time, and cannot be changed. 1-63 characters long.

The name is unique across all existing MDB hosts in Yandex.Cloud, as it defines the FQDN of the host.
hosts[].
clusterId		 string

ID of the ClickHouse host. The ID is assigned by MDB at creation time.
hosts[].
zoneId		 string

ID of the availability zone where the ClickHouse host resides.
hosts[].
type		 string

Type of the host.

  • CLICKHOUSE: ClickHouse host.
  • ZOOKEEPER: ZooKeeper host.
hosts[].
resources		 object

Resources allocated to the ClickHouse host.
hosts[].
resources.
resourcePresetId		 string

ID of the preset for computational resources available to a host (CPU, memory etc.). All available presets are listed in the documentation
hosts[].
resources.
diskSize		 string (int64)

Volume of the storage available to a host, in bytes.
hosts[].
resources.
diskTypeId		 string

Type of the storage environment for the host. Possible values:

  • network-hdd - network HDD drive,
  • network-ssd - network SSD drive,
  • local-ssd - local SSD storage.
hosts[].
health		 string

Status code of the aggregated health of the host.

  • UNKNOWN: Health of the host is unknown.
  • ALIVE: The host is performing all its functions normally.
  • DEAD: The host is inoperable, and cannot perform any of its essential functions.
  • DEGRADED: The host is degraded, and can perform only some of its essential functions.
hosts[].
services[]		 object

Services provided by the host.
hosts[].
services[].
type		 string

Type of the service provided by the host.

  • CLICKHOUSE: The host is a ClickHouse server.
  • ZOOKEEPER: The host is a ZooKeeper server.
hosts[].
services[].
health		 string

Status code of server availability.

  • UNKNOWN: Health of the server is unknown.
  • ALIVE: The server is working normally.
  • DEAD: The server is dead or unresponsive.
hosts[].
subnetId		 string

ID of the subnet that the host belongs to.
hosts[].
assignPublicIp		 boolean (boolean)

Flag showing public IP assignment status to this host.
hosts[].
shardName		 string
nextPageToken string

This token allows you to get the next page of results for list requests. If the number of results is larger than pageSize, use the nextPageToken as the value for the pageToken query parameter in the next list request. Each subsequent list request will have its own nextPageToken to continue paging through the results.
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