Deferred-work register row 48. The rig had no deployable instance — all seven
soak-* rows fail pre-deployment validation (their bound data connections no longer
exist on the sites) — so debug snapshot returned instanceNotFound, no gRPC site
stream was ever opened, and the R2 batching histogram
scadabridge.site.stream.batch_size had nothing to record. Any live probe of the
data or streaming path was unverifiable.
seed-live-probe.sh rebuilds the minimum working set via the CLI only (no DB edits):
RigProbe template (Spike <- ns=3;s=SpikeData, RandomInt <- ns=3;s=RandomSignedInt32,
both ~1 Hz; Heartbeat static attribute + a trust-clean 5s interval script) and a
deployed rig-probe-1 on site-a against connection 1.
Records the two traps that cost time here:
- The custom tags in infra/opcua/nodes.json (Motor.*, Tank.*, Valve.*,
TestChildObject.*) are DECLARED but not simulated by opc-plc — they read 0/false/
epoch forever, so binding to them yields a Connected, Good-quality connection with
zero event traffic. Only the built-in nodes move.
- scadabridge_site_connection_up counts open central->site gRPC SUBSCRIBER STREAMS,
not OPC UA data connections. It reads 0 on a healthy site with no subscriber, which
is how row 48 read it as a data-connection fault. Data-connection health lives in
the health report's dataConnectionEndpoints / dataConnectionTagQuality.
Joseph Doherty