Spanda

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

• Runtime Fault Detection
• Health Checks
• Readiness

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