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Distributed Trace Root Cause Analyzer

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Find why a request was slow or failed from distributed traces (OTLP, Jaeger, Zipkin): critical path, error origin, slow queries, N+1, retries, timeouts and dependency bottlenecks, ranked with evidence.

Pricing

from $500.00 / 1,000 trace investigateds

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Developer

Justin Hagerty

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12 days ago

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Changelog — Distributed Trace Root Cause Analyzer

0.1.0 — unreleased

Initial version.
Per-run threshold overrides: the thresholds input object (33 known keys such as slowDbMs, nPlusOneMin, externalSlowMs) overrides detector defaults; unknown keys or out-of-range values fail the run before any charge.
Span-name templates: IDs in span names (UUIDs, hex IDs, opaque tokens, numbers, e-mails, query values) become {id} for call grouping (N+1 / retry detection) and baseline matching, so GET /users/42 matches GET /users/7.
More real-world export shapes: Tempo v2 {"trace": …}, Jaeger v2 /api/v3 {"result": …}, JSON-lines text from the OpenTelemetry Collector file exporter, and Jaeger API error responses reported with their message.
Input formats, auto-detected and mixable: OTLP/JSON (hex or base64 IDs, Tempo batches, legacy instrumentationLibrarySpans), Jaeger JSON (µs, CHILD_OF/FOLLOWS_FROM, tags, logs), Zipkin v2 (incl. shared B3 spans and lists of traces), and a simplified {trace_id, spans} shape with a durations-only mode.
Trace reconstruction: duplicate IDs, cycles, orphans, multiple or missing roots, Jaeger-style clock-skew adjustment, async (FOLLOWS_FROM / producer→consumer) children, CLIENT→SERVER pairing.
Timing: self time via interval union (correct for concurrency), gaps, network/queue split, parallelism factor, per-service / per-operation / per-edge aggregation.
Critical path (iterative backwards walk) with per-span and per-service attribution.
Error origin vs propagation (error chain), handled errors, independent failure sources.
56 detectors (RCA-*) and 4 fleet rules (RCA-FLEET-*).
Root-cause ranking with numeric score, confidence label, reasoning, evidence and category-specific recommendations.
Baseline comparison: robust per-operation regressions (median/p95), critical-path shifts, new operations/services/errors, call-count increases.
Fleet summary across traces; INVESTIGATION.md with critical-path tables, Mermaid diagrams, ASCII waterfalls and error chains.
Pay-per-event: trace-investigated $0.50, baseline-comparison $0.25, fleet-summary $0.25. Failed or skipped traces are never charged.

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