Configuring a Tracker

Scenario

You can configure the file prefix of trackers on the CTS console no matter whether the trackers are enabled or not. For enabled trackers, you can also configure OBS buckets for trace transfer and LTS dumps.

• You can select an existing OBS bucket for trace transfer. CTS will automatically attach a required policy to the OBS bucket.
• If you modify the trace file prefix of a tracker, the OBS bucket policy will not be affected.

The configuration will take effect immediately after it is complete.

Prerequisites

You have enabled CTS.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and choose Management & Deployment > Cloud Trace Service. The CTS console is displayed.
3. Choose Tracker List in the navigation pane on the left.
4. On the right of the tracker information, click Configure.
5. Configure a transfer.

   Table 1 Parameters for configuring a transfer

   Parameter	Description
   Transfer to OBS	If you select Yes, select an existing OBS bucket and set File Prefix. When Transfer to OBS is disabled, no operation is required.
   OBS Bucket	New: If this function is enabled, an OBS bucket will be created automatically with the name you enter. Select Existing: Select an existing OBS bucket.
   Select Bucket	When you select New, enter an OBS bucket name. The OBS bucket name cannot be empty. It can contain 3 to 63 characters, including only lowercase letters, digits, hyphens (-), and periods (.). It cannot contain two consecutive periods (..). For example, my..bucket is not allowed. When you select Existing, select an existing OBS bucket.
   Retention Period	The duration for storing traces in the OBS bucket. This configuration will apply to the selected bucket and all files in it. Different compliance standards require different trace retention periods. You are advised to set the retention period to at least 180 days.
   File Prefix	A prefix is used to mark a transferred trace file. Your specified prefix will be automatically added to the beginning of the name of a transferred file, helping you quickly filter files. Enter 0 to 64 characters. Only letters, digits, hyphens (-), underscores (_), and periods (.) are allowed.
   Transfer to LTS	When Transfer to LTS is enabled, traces are transferred to the log stream.
   Log group name	When Transfer to LTS is enabled, the default log group name is CTS. When Transfer to LTS is disabled, no operation is required.

6. Click OK to complete the configuration.

   You can then view the tracker details on the Tracker List page.

   

   Traces recorded by CTS are delivered periodically to the OBS bucket for storage. If you configure an OBS bucket for a tracker, traces generated during the current cycle (usually several minutes) will be delivered to the configured OBS bucket. For example, if the current cycle is from 12:00:00 to 12:05:00 and you configure an OBS bucket for a tracker at 12:02:00, traces received from 12:00:00 to 12:02:00 will also be delivered to the configured OBS bucket for storage at 12:05:00.