Basic Concepts

Trackers

When you enable CTS for the first time, a management tracker named system is created automatically. You can also manually create multiple data trackers on the Tracker List page.

Th management tracker identifies and associates with all cloud services your tenant account is using, and records all operations of your tenant account. Data trackers record details of the tenant's operations on data in OBS buckets.

A management tracker and 100 data trackers can be created for a tenant account.

Traces

Traces are operation logs of cloud service resources and are captured and stored by CTS. You can view traces to get to know details of operations performed on specific resources.

There are two types of traces:

• Management traces

  Traces reported by cloud services.

• Data traces

  Traces of read and write operations reported by OBS.

Trace List

The trace list displays traces generated in the last seven days. These traces record operations (in the last hour by default) on cloud service resources, including creation, modification, and deletion, but do not record query operations. There are two types of traces:

• Management traces: record details about creating, , and deleting cloud service resources in your tenant account.
• Data traces: record operations on data in OBS buckets, such as data upload and download.

Trace Files

A trace file is a collection of traces. CTS generates trace files based on services and transfer cycle and send these files to your specified OBS bucket in real time. In most cases, all traces of a service generated in a transfer cycle are compressed into one trace file. However, if there are a large number of traces, CTS will adjust the number of traces contained in each trace file.

Traces files are in JSON format. Figure 1 shows an example of a trace file.

Figure 1 Trace file example