Make window Parameter Dynamic

[GTRekter]

Subject

Linkerd Viz: Make window Parameter Dynamic

Problem

While we already have a list of acceptable values for the window parameter, it is currently hard-coded to 1m. In some edge cases, users may need to increase the scrape interval beyond one minute. This limitation causes the irate() functions to lack two data points within the one-minute window, resulting in an empty array.

Solution

Allow users to dynamically change the window parameter without needing to create local overrides in their browser. This is accomplished by checking the session storage for a value under the key metricsWindow. If a value exists, it is validated against the existing validMetricsWindows array. If the stored value is valid, it is used; otherwise, the default value is applied.

Validation

• N/D