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Runtime Health

Spanda aggregates runtime health from heartbeats, process health, active faults, and configured monitors.

Status values

Status Meaning
Healthy No active faults
Warning Minor fault or configuration concern
Degraded Fault affecting operation but not critical
Critical Fault requiring immediate attention
Crashed Process or runtime crash detected
Rebooted Unexpected reboot detected
Unknown Insufficient data

Types

  • RuntimeHealth — overall health with heartbeats, processes, and active faults
  • ProcessHealth — per-process status, exit code, restart count, uptime
  • HeartbeatStatus — per-target heartbeat monitoring state
  • ResourcePressure — CPU, memory, disk, GPU, battery, network pressure

CLI

spanda runtime health rover.sd
spanda runtime health rover.sd --json
spanda fault scan rover.sd

Integration

Runtime health feeds into:

  • Readiness — fault impact on deployment readiness
  • Assurance — uptime and crash-free duration evidence
  • Diagnosis — causal explanation of faults
  • Recovery — recommended recovery actions
  • Replay — fault events in mission traces

See also