Metrics Management¶

After completing the collection of metrics data, 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 each measurement:

• Metrics
• Tags
• Time Series Statistics

Metrics¶

Metrics reflect the operational status of a system (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 operations 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 as key-value pairs, consisting of a tag name and a tag value. A single data point can have multiple tags.

Click the measurement name to view the corresponding tag list, including tag names, tag value statistics, descriptions, and more. 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, containing metrics, tags (fields), and data storage duration. Here, "metric + tag (field combination)" forms 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 changes for individual metrics/tags are presented through metric and tag statistical 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

Modifying Policies¶

Custom settings for measurements take precedence over global workspace settings. That is, after customizing the storage policy for a measurement, modifying the global settings will not affect that measurement.

Key Considerations¶

When modifying the storage policy for a measurement, pay attention to the following key rules:

1. Immediate data deletion: After modifying the policy, the data for that measurement under the original policy will be permanently deleted and cannot be recovered. Subsequent policy modifications will also delete the current policy data;
2. Independent storage mechanism: After customizing the policy, the measurement data will be stored independently. Modifying the global policy duration will not affect measurements with custom policies;
3. Restoring global policy: When reverting to "global default," data will be stored in the global repository again. Subsequent global policy modifications will affect the measurement;
4. Same duration does not mean the same policy: Even if the custom duration matches the global duration, the data is still stored independently. Example: When the global duration is 7 days, setting a measurement to 7 days still results in independent storage.

Modification Path¶

Global Settings¶

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

Custom Settings for Measurements¶

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