o11y IM null values on list/heatmap/single-value charts

Available Languages

Updated:September 29, 2026

Document ID:SPLK045541

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Applicability

Observability Cloud Infrastructure Manager

Description

List, heatmap, and single-value charts may show null value "-" when a value is expected to be extrapolated.

Investigation

These three chart types require data be recent. Extrapolation & Fill do not apply towards recent values.

Resolution

1.) Navigate to Chart Options and change the refresh every option to 1h. If datapoints aren't too infrequent, this may be enough to propagate those values.
2.) Apply a timeshift or aggregate transformation to account for the datapoints. Maximum transformation over 24 hours for example will create a moving -24 hour window and will be able to pick up datapoints plotted in the last 24 hours.
3.) The most appropriate solution would be to send datapoints in more frequently. Be aware that for instances on a DPM based subscription, this will create more datapoints that will apply towards that subscription.