Querying a Tracker

Function

After CTS is enabled, you can view details about the tracker on the Tracker page. The details include the name of the tracker, name of the OBS bucket for storing traces, and prefix of the trace files stored in the OBS bucket.

URI

GET /v3/{project_id}/trackers

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining an Account ID and Project ID.

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
tracker_name	No	String	Tracker name. If this parameter is not specified, all trackers of a tenant will be queried.

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
trackers	Array of TrackerResponseBody objects	List of tracker information.

**Table 4** TrackerResponseBody
Parameter	Type	Description
id	String	Unique tracker ID.
create_time	Long	Timestamp when the tracker was created.
lts	Lts object	Detail about trace analysis.
tracker_type	String	Tracker type. The value can be system (management tracker). Enumerated values: system
domain_id	String	Account ID. For details, see Obtaining an Account ID and Project ID.
project_id	String	Project ID.
tracker_name	String	Tracker name. The default value is system.
status	String	Tracker status. The value can be enabled, disabled, or error. If the value is set to error, the detail field is required for specifying the source of the error. Enumerated values: enabled disabled
detail	String	This parameter is returned only when the tracker status is error. It indicates the cause of the abnormal status, and its value can be bucketPolicyError, noBucket, or arrears.
obs_info	ObsInfo object	Information about the bucket to which traces are transferred.
group_id	String	LTS log group ID.
stream_id	String	LTS log stream ID.

**Table 5** Lts
Parameter	Type	Description
is_lts_enabled	Boolean	Specifies whether to enable the LTS search function.
log_group_name	String	Name of the log group that CTS creates in LTS.
log_topic_name	String	Specifies the name of the log topic that CTS creates in LTS.

**Table 6** ObsInfo
Parameter	Type	Description
bucket_name	String	OBS bucket name. The value contains 3 to 63 characters and must start with a digit or lowercase letter. Only lowercase letters, digits, hyphens (-), and periods (.) are allowed.
file_prefix_name	String	Prefix of trace files that need to be stored in OBS buckets. The value can contain 0 to 64 characters, including letters, digits, hyphens (-), underscores (_), and periods (.).
is_obs_created	Boolean	Whether the OBS bucket is automatically created by the tracker.

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Format: CTS.XXX.
error_msg	String	Error message.

Status code: 401

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Format: CTS.XXX.
error_msg	String	Error message.

Status code: 403

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Format: CTS.XXX.
error_msg	String	Error message.

Status code: 500

**Table 10** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Format: CTS.XXX.
error_msg	String	Error message.

Status code: 503

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Format: CTS.XXX.
error_msg	String	Error message.

Example Request

GET https://{endpoint}/v3/{project_id}/trackers?tracker_name=system

Example Response

Status code: 200

The request is successful.

{
  "trackers" : [ {
    "create_time" : 1589886034121,
    "stream_id" : "4a1ef2b6-d79a-4dc6-90f0-48151cd5491b",
    "group_id" : "26fa12ac-75f7-42ed-8118-ab9f2263042f",
    "obs_info" : {
      "is_obs_created" : false,
      "bucket_name" : "",
      "is_authorized_bucket" : false,
      "file_prefix_name" : "",
    },
    "lts" : {
      "log_group_name" : "CTS",
      "is_lts_enabled" : true,
      "log_topic_name" : "system-trace"
    },
    "tracker_type" : "system",
    "domain_id" : "2306579dc99f4c8690b14b68e734fcd9",
    "project_id" : "24edf66e79d04187acb99a463e610764",
    "tracker_name" : "system",
    "id" : "ebf8d1c3-762b-4ce3-b316-6b1aa32f8be3",
    "status" : "enabled"
  }
}

Status Code

Status Code	Description
200	The request is successful.
400	The server failed to process the request.
401	The request is rejected due to authentication failure.
403	The server understood the request but refused to authorize it.
500	Failed to complete the request because of an internal service error.
503	The requested service is invalid. The client should not repeat the request without modifications.