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Author	SHA1	Message	Date
ZhenYi	6eb65a5c65	feat(observability): inject _msg field for VictoriaLogs compatibility Add MsgJsonFormat custom event formatter that outputs JSON with _msg as the first field, required by VictoriaLogs for full-text search. HTTP middleware stores interpolated "METHOD /path" in thread-local buffer for the formatter to read on span-close events.	2026-04-26 13:31:05 +08:00
ZhenYi	b4024aa690	feat(observability): Phase 6 OTLP tracing + Prometheus /metrics endpoint - Add HTTP OTLP exporter (opentelemetry-otlp 0.31) via SdkTracerProvider + BatchSpanProcessor + tracing_opentelemetry layer - Add Prometheus /metrics handler via metrics-exporter-prometheus 0.13 - Replace slog with tracing throughout: HttpMetrics, TracingSpanMiddleware - Replace .init() with .try_init() to allow OTLP layer registration after init_tracing_subscriber() - otlp.rs: SpanExporter::builder().with_http().with_endpoint(), Resource::builder().with_service_name(), .with_attribute(KeyValue::new(...)) - prometheus_exporter.rs: install_recorder(), prometheus_handler(), spawn_http_metrics_poller()	2026-04-21 22:28:15 +08:00

Author

SHA1

Message

Date

ZhenYi

6eb65a5c65

feat(observability): inject _msg field for VictoriaLogs compatibility

Add MsgJsonFormat custom event formatter that outputs JSON with _msg as
the first field, required by VictoriaLogs for full-text search. HTTP
middleware stores interpolated "METHOD /path" in thread-local buffer
for the formatter to read on span-close events.

2026-04-26 13:31:05 +08:00

ZhenYi

b4024aa690

feat(observability): Phase 6 OTLP tracing + Prometheus /metrics endpoint

- Add HTTP OTLP exporter (opentelemetry-otlp 0.31) via SdkTracerProvider +
  BatchSpanProcessor + tracing_opentelemetry layer
- Add Prometheus /metrics handler via metrics-exporter-prometheus 0.13
- Replace slog with tracing throughout: HttpMetrics, TracingSpanMiddleware
- Replace .init() with .try_init() to allow OTLP layer registration after
  init_tracing_subscriber()
- otlp.rs: SpanExporter::builder().with_http().with_endpoint(),
  Resource::builder().with_service_name(), .with_attribute(KeyValue::new(...))
- prometheus_exporter.rs: install_recorder(), prometheus_handler(),
  spawn_http_metrics_poller()

2026-04-21 22:28:15 +08:00

2 Commits