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The system-* dashboards queried the legacy StatsD rippled_ prefix, but the node now emits beast::insight metrics via native OTLP under the xrpld_ prefix (config: [insight] server=otel, prefix=xrpld). All queries returned no data. Migration (names derived from C++ beast::insight registrations, not live Prometheus, since a syncing node does not emit every metric yet): - rippled_ -> xrpld_ prefix across all panel queries and template variables (including the $node variable query, which broke the whole dashboard filter) - Histogram Event instruments export with unit ms, so bare _bucket becomes _milliseconds_bucket: ios_latency, rpc_time, rpc_size, pathfind_fast/full - Job-type metrics were StatsD summaries (label quantile="$quantile"); on the OTLP path they are histograms. Converted those queries to histogram_quantile($quantile, rate(xrpld_<job>_milliseconds_bucket[5m])) and added the previously-undefined $quantile template variable - Per-job-type detail panels: __name__ regex now matches _milliseconds_bucket No panels removed. Panels for metrics not yet emitted (e.g. warn/drop, or job types the syncing node has not run) show no data until the path executes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>