Querying Node Information in Error Logs or Slow Query Logs

This API is used to query node information in error logs or slow query logs. Before calling this API:

GET /v3/{project_id}/instances/{instance_id}/clickhouse/nodes

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.
instance_id	Yes	String	ClickHouse instance ID, which is compliant with the UUID format.

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. To obtain this value, call the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the token value.
X-Language	No	String	Request language type. The default value is en-us. Values: en-us zh-cn

Status code: 200

**Table 3** Response body parameter
Parameter	Type	Description
node_list	Array of node_list objects	ClickHouse instance nodes.

**Table 4** node_list
Parameter	Type	Description
node_id	String	ID of a ClickHouse instance node.
node_name	String	Name of a ClickHouse instance node.
role	String	Node role.

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Querying node information in error logs or slow query logs

GET https://{endpoint}/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/28f61af50fc9452aa0ed5ea25c3cc3d3/clickhouse/nodes

Status code: 200

Success.

{
  "node_list" : [ {
    "node_id" : "f1a5641d62f44803ac38ffefed0e4736no07",
    "node_name" : "gauss-htap-node01",
    "role" : "slave"
  } ]
}

For details, see Error Codes.

Parent topic: HTAP (Lightweight Edition)

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