Exporting Slow Query Logs

Function

After Collect Slow Query Logs is enabled, you can export the slow query logs within a specified period all at once. The data can be obtained by page.
For free instances, you can only view data generated in the last hour.

URI

GET /v3/{project_id}/instances/{instance_id}/slow-query-logs

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region To obtain this value, see Obtaining a Project ID. Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A
instance_id	Yes	String	Explanation: Unique ID of an instance Constraints: N/A Values: The value can contain 32 characters. Only letters and digits are allowed. Default value: N/A

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
datastore_type	Yes	String	Explanation: Database type Constraints: N/A Values: MySQL TaurusDB PostgreSQL Default value: N/A
start_at	Yes	Long	Explanation: Start time Constraints: Unix timestamp, in milliseconds Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A
end_at	Yes	Long	Explanation: End time Constraints: Unix timestamp, in milliseconds Values: [0, 2^31-1]. The actual value depends on the query result. Default value: N/A
limit	Yes	Integer	Explanation: Records on each page Constraints: N/A Values: [0, 2000]. The actual value depends on the query result. Default value: N/A
marker	No	String	Explanation: Query result marker. When the first page is obtained, no value needs to be assigned to this parameter. When the next page is obtained, the returned value of the first page query result is used. Constraints: N/A Values: N/A Default value: N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
slow_logs	Array of slow log objects	Explanation: Slow query logs. If the set is empty, all slow query logs have been exported. Values: N/A
next_marker	String	Explanation: Marker required for obtaining the next page. This parameter is valid only within 3 minutes. Values: N/A

**Table 4** SlowLog
Parameter	Type	Description
sql	String	Explanation: SQL statement Values: N/A
sql_template_id	String	Explanation: SQL template ID Values: N/A
database	String	Explanation: Database name Values: N/A
client	String	Explanation: Client Values: N/A
user	String	Explanation: User Values: N/A
execute_at	Long	Explanation: Execution start time in the Unix timestamp format, in milliseconds Values: [0, 2^31-1]. The actual value depends on the query result.
query_time	Double	Explanation: Duration (s) Values: N/A
lock_time	Double	Explanation: Lock wait time (s) Values: N/A
rows_examined	Long	Explanation: Number of scanned rows Values: [0, 2^31-1]. The actual value depends on the query result.
rows_sent	Long	Explanation: Returned rows Values: [0, 2^31-1]. The actual value depends on the query result.

Example Request

Exporting slow query logs

GET https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/da304cd5bbb944de828759bc7be3d3fein01/slow-query-logs?start_at=1611975464337&end_at=1611979064337&limit=10&marker=DXF1ZXJ5QW5kRmV0Y2gBAAAAAAAQH8YWSEFfM3FyOXZRNzJQOTVLNHNBOTQ2UQ==&datastore_type=MySQL

Example Response

Status code: 200

Response body for exporting slow query logs

{
  "slow_logs" : [ {
    "execute_at" : 1612343898000,
    "sql" : "SELECT sleep(10)\nLIMIT 0, 50;",
    "sql_template_id" : "AAD913807ECE9C66",
    "database" : "123",
    "client" : "[100.79.0.248]",
    "user" : "root[root]",
    "query_time" : 10.000158309936523,
    "lock_time" : 0,
    "rows_examined" : 0,
    "rows_sent" : 1
  } ],
  "next_marker" : "DXF1ZXJ5QW5kRmV0Y2gBAAAAAAAJr48WZERxYkx5Q2VRQS1LSXRrRWt0VEN1QQ=="
}