Metrics Management¶

After completing metrics data collection, you can view all reported measurements and their associated metrics, tags, time series statistics, daily changes, and data storage policies in Metrics Management.

Measurement¶

A measurement is a collection of similar metrics, containing multiple metrics and tags. The system displays the following information for a single measurement:

• Metrics
• Tags
• Time Series Statistics

Metrics¶

Metrics reflect the system's operational status (e.g., CPU usage, page load time, etc.) and consist of a metric name (identifier) and a metric value (specific numerical value).

Click the measurement name to view complete metric details (name/type/unit, etc.), and the following operations are supported:

• Filter metrics based on keywords in the search bar;
• Export the metric list as a CSV file;
• Perform one-click metric analysis in the operation column;
• Click to expand metric data and edit metric configurations.

Tags¶

The attributes of the data point collection object are identified by tags, which are presented in key-value pairs, consisting of a tag name and a tag value. A data point can have multiple tags.

Click the measurement name to view the corresponding tag list, including the tag name, tag value statistics, and descriptions, and the following operations are supported:

• Filter tags based on keywords in the search bar;
• Export the tag list as a CSV file.

Time Series¶

Time series are dynamically generated by tag combinations and include metrics, tags (fields), and data storage duration. Among them, "metric + tag (field combination)" constitutes the primary key for data storage.

In TrueWatch, the total number of time series for the current measurement is displayed here, and the unique value count, time series count, and daily change are presented through metric statistics and tag statistics charts.

Storage Policy¶

The storage policy is divided into two levels:

• Workspace Global Settings: Applied to all measurements
• Measurement Custom Settings: Settings for specific measurements

Modify Policy¶

The custom settings of a measurement take precedence over the global settings of the workspace. That is: After customizing the storage policy for a measurement, modifying the global settings will not affect that measurement.

Considerations¶

The following key rules should be noted when modifying the storage policy of a measurement:

1. Immediate data deletion: After modifying the policy, the data of the measurement under the original policy will be permanently deleted and cannot be recovered. Subsequent policy modifications will also delete the data under the current policy;
2. Independent storage mechanism: After customizing the policy, the measurement data will be stored independently. Modifying the global policy duration at this time will not affect the already customized measurement;
3. Restore global policy: When reverting to "global default," the data will be stored in the global library again. Subsequent modifications to the global policy will affect this measurement;
4. Same duration does not mean the same policy: Even if the custom duration is the same as the global duration, the data is still stored independently. Example: Setting a measurement to 7 days when the global duration is 7 days still counts as independent storage.

Modification Path¶

Global Settings¶

Go to Management > Workspace Settings > Risky Operations > Change Data Storage Policy > Metrics, and select the storage duration.

Measurement Custom Settings¶

Go to Metrics > Metrics Management, and click the icon in the operation column of a single measurement to select the duration. If not set, it automatically inherits the Global Policy.