Live and History

Reading Time: < 1 minute

When to use

  • Live — for an operational reaction here and now.
  • Historical — for retrospective analysis and capacity planning.

What Live shows

  • Streaming telemetry via SSE.
  • The set of graphs selected in the cluster settings.
  • A buffer of points bound to the threshold offlineThresholdSeconds.

What Historical shows

  • Data by intervals (1/5/15/30/60 min).
  • For each bucket: avg, min, max.
  • Incremental loading of large periods with progress.

Working scenario

  1. During the event, work in Live and capture the moment of degradation.
  2. Once stabilized, open Historical on the same server.
  3. Compare peak and baseline values ​​for the desired time range.

What to check

  • Live has an active connection and updates graphics without interruptions.
  • Historical returns a non-empty range and plots AVG/MIN/MAX curves.
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