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- Add comprehensive tracing for RPC calls and transactions - Support W3C TraceContext header propagation - Add Engine API tracing for op-node correlation - Add CLI flags for tracing configuration - Compatible with op-geth v1.101503.4 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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| return nil | ||
| } | ||
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| return initializeTracer(cfg) |
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Bug: Race condition in tracer initialization
The Initialize function modifies global variables (tracer, isEnabled, config) without synchronization, while GetTracer uses sync.Once to call Initialize(nil) if the tracer is uninitialized. This creates a race condition where Initialize can be called explicitly from makeFullNode while concurrent goroutines call GetTracer, leading to potential data races on the global variables. The tracerOnce only protects the lazy initialization path, not the explicit initialization.
| // Simple parsing - in production, you might want more robust parsing | ||
| // Format: "key1=value1,key2=value2" | ||
| return headers | ||
| } No newline at end of file |
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Bug: Empty parseHeaders function ignores input parameter
The parseHeaders function accepts a headerStr parameter but always returns an empty map without parsing it. This causes the OTEL_EXPORTER_OTLP_HEADERS environment variable to be silently ignored in ExtractTraceContext, preventing users from configuring custom headers for the OTLP exporter through environment variables.
| cfg.Endpoint = ctx.String(TracingEndpointFlag.Name) | ||
| if cfg.Endpoint != "" { | ||
| cfg.Enabled = true // Auto-enable if endpoint is provided | ||
| } |
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Bug: Endpoint flag overrides explicit tracing disable
When a user explicitly sets --tracing.enabled=false but also provides --tracing.endpoint, the auto-enable logic unconditionally sets cfg.Enabled = true if the endpoint is non-empty. This overrides the user's explicit intent to disable tracing, making it impossible to disable tracing when an endpoint is configured. The auto-enable should only apply when the enabled flag hasn't been explicitly set.
| github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff | ||
| github.com/gofrs/flock v0.8.1 | ||
| github.com/golang-jwt/jwt/v4 v4.5.2 | ||
| github.com/golang-jwt/jwt/v4 v4.5.1 |
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Bug: Dependency version downgrade may break compatibility
The github.com/golang-jwt/jwt/v4 dependency is downgraded from v4.5.2 to v4.5.1. This downgrade could reintroduce bugs or security issues that were fixed in v4.5.2, potentially affecting JWT authentication for the Engine API and other authenticated endpoints.
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| if !GetConfig().IsTransactionTracingEnabled() { | ||
| return ctx, oteltrace.SpanFromContext(ctx) | ||
| } |
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When transaction tracing is off (the default), this path returns oteltrace.SpanFromContext(ctx), which is the current active span rather than a fresh no-op span. Both TransactionAPI.SendRawTransaction and EthAPIBackend.SendTx immediately defer span.End(), so in requests that already have an RPC span, those defers can end the parent span early and cause later status/attribute updates in rpc/handler.go to be dropped or mis-timed; this breaks trace correctness whenever tracing is enabled but tracing.transactions is false.
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Note
Adds OpenTelemetry tracing with CLI configuration, spans for RPC/Engine API/transactions, and HTTP trace context propagation, plus required deps.
tracingpackage: config, tracer init/shutdown, span helpers (StartRPCSpan,StartSendRawTransactionSpan,StartTxForwardSpan, error/status setters, HTTP context inject/extract).utils/TracingFlags) to configure tracing (endpoint, service name/version, sample rate, timeouts, feature toggles).cmd/geth/config.goduring node setup viautils.SetTracing.rpc/http.go; helperNewContextWithTraceHeaders.eth_sendRawTransactionand OP sequencer forwarding with transaction attributes and error tagging.cmd/geth/main.go.jwt,uuid).Written by Cursor Bugbot for commit 9b93e98. This will update automatically on new commits. Configure here.