To help users better experience product features while reducing costs, APM provides a free mode. You can enable free mode for specific business systems to enjoy permanent free usage of the APM product. Once free mode is enabled, charging for the selected business system will immediately stop, and the applications accessing this business system will incur no fees and will not consume any quotas from prepaid packages. Charging for the business system will only resume under your specified billing mode once you proactively disable the free mode.
Use Limits
In free mode, APM provides limited features. To access the full features of APM, you need to disable free mode. Be aware of the following use limits:
Linkage data is not saved. Both the Distributed Tracing and Trace details features will be affected.
Metric data is retained for a fixed period of 3 days. APM uses separate data sources to store metric data for free and paid modes. When a business system switches between free mode and paid mode, historical metric data will no longer be queried.
For Spans with the call role Internal, no metric data is generated. You can see Link Tracing Field Description for more details about Span call roles. In most scenarios, users only need to focus on the metrics generated under the Server, Client, Consumer, and Producer roles. Therefore, this limit has minimal impact on the normal use of APM.
Alarming features are not supported.
Features Supported in Free Mode
In addition to the use limits mentioned above, all other APM features can be used normally in free mode. These include application performance overview, application topology, JVM monitoring, API monitoring, database call analysis, MQ call analysis, error analysis, and advanced diagnostic capabilities such as application performance profiling.
2. Go to APM > Resource management > System Management, find the business system to enable free mode, and click Modify configuration.
3. In the Update business system dialog box, turn on the Enable Free Mode switch, and click OK.
Once the operation is completed, the business system will enter Free Mode, and all charging associated with the system will stop immediately. In free mode, application access operates in the same manner as in the normal mode. Switching between free mode and paid mode takes effect instantly without requiring re-access of the application. Free mode is configured at the business system level, allowing both free mode and paid mode business systems to coexist under the same account.
