Present in 91% of affected traces and 8% of matched controls.
DriftStore / investigation-first telemetry
Your telemetry should do more than sit there.
Store traces, metrics, and logs in one engine built to investigate anomalies—not just return rows. DriftStore follows a regression across signals, tests competing explanations, and shows exactly what the evidence can support.
- OTLP nativemetrics · traces · logs
- Tenant isolatedidentity from credentials
- Replayablepinned evidence, not vibes
checkout-api / release 7f3a2cMost observability databases answer the query you already knew to ask.
DriftStore starts with the anomaly—and works backward to the evidence.
NATIVE LLM NARRATIVE / VERIFIED BY THE ENGINE
Let the model explain it. Never let it make the case.
DriftStore builds the facts, tests the hypotheses, and grades the evidence first. The model receives only that approved claim graph, then turns it into an incident narrative whose numbers and citations are checked before you see it.
12:38 → 12:46 UTCmodel output · 6/6 atoms validCheckout p95 latency rose from 184ms to 401ms after release 7f3a2c. [M1]
The best-supported explanation is a new synchronous call from checkout to inventory. It appears in 91% of affected traces versus 8% of matched healthy controls and contributes a median 162ms to the critical path.[T4, C2]
Database time and payment latency did not materially change, weakening the two competing explanations. [N1, N2]
- Invent a fact
- Change a number
- Upgrade a claim
- Hide missing coverage
- Recommend without a basis
ONE TIMELINE. THREE SIGNALS.
Correlation without the tab switching.
Metrics locate the change. Traces expose the changed request shape. Logs provide the exact witness. Every step keeps its provenance.
Find where behavior drifted.
PromQL-compatible queries, exemplars, adaptive rollups, and change-point detection over the same retained history.
See what the request started doing.
Move from a metric regression into exact trace shapes, critical-path contributors, and representative witnesses.
12:41:08stock lookup timed outtrace=8f21…Read the line that proves it.
Query logs in context, joined by trace, service, release, environment, and the investigation window.
MEASURED, NOT PROJECTED
Fast at the receiver. Complete after it.
Three-trial, open-loop OTLP studies on an isolated host. Every displayed run had zero client drops and zero HTTP errors; the workload, ACK boundary, and downstream gate are stated so a latency number cannot quietly become a durability claim.
Both engines accepted and exposed exactly 18,000,400/18,000,400 points in every trial. DriftStore used more resources at this operating point: 153.3% median CPU and 250.7 MiB median RSS versus 44.7% and 162.8 MiB.
DriftStore reports bounded, memory-buffered admission before gzip inflation and protobuf decode. ClickStack decodes before its collector response. Neither response is a durable-storage ACK; moving decode off the response path is a deliberate DriftStore architectural advantage.
The VictoriaMetrics row has point-level completeness on both engines. The ClickStack runs gated exact ClickHouse rows and exact DriftStore compacted frames; point/span/log enumeration on DriftStore remains a stricter follow-up gate.
These operating points do not prove maximum capacity, equal durability, query latency, long-retention storage efficiency, or lower resource use. VictoriaMetrics remains substantially more CPU- and memory-efficient in the measured metrics run.
Candidate results, recorded August–September 2026. The source, runners, raw trials, image digests, and limitations are public: ClickStack signal study ↗ · ClickStack metrics study ↗ · VictoriaMetrics study ↗
THE DIFFERENCE
An answer you can inspect. Including “not enough evidence.”
- 01Measure the change
Baseline and current windows use the same typed measure, with coverage and sampling made explicit.
- 02Generate competing explanations
Cross-signal candidates are ranked from storage-native facts—not invented by a language model.
- 03Try to disprove them
Matched controls, unaffected cohorts, contradictions, and negative controls challenge every claim.
- 04Grade—or abstain
The result is observed, corroborated, explanatory, or insufficient. Missing data never becomes certainty.
NOT JUST FEWER BOXES
The investigation is the data model—not a workflow assembled afterward.
Loki, Mimir, and ClickHouse are powerful systems. DriftStore is better when the job is explaining an anomaly across signals with a result you can replay and audit.
- You define the joins.Trace IDs, release identity, topology, and windows have to line up across systems.
- You author the investigation.Dashboards and queries expose signals; people or custom agents decide what to test next.
- The answer is ephemeral.Query results can come from different retention states and storage generations.
- An LLM sees query output.Guardrails, citations, contradiction tests, and claim limits become application code you own.
- Joins are native.Exemplars, trace shape, logs, temporal topology, release, and code change share one investigation vocabulary.
- Falsification is automatic.Matched cohorts, negative controls, competing contributors, and coverage gates run as bounded storage operations.
- Every answer is replayable.The artifact records exact windows, checkpoints, algorithms, limits, evidence, and contradictions.
- The LLM is the narrator.It verbalizes approved claims. The engine remains the authority—even when inference is unavailable.
Choose the stack when: you need general-purpose, independently operated signal stores and want to build your own investigation layer. Choose DriftStore when: the product you want is the investigation.
BUILT FOR THE HOT PATH
A storage engine, not a dashboard glued to someone else’s database.
Rust on the write path. Checksummed WAL frames. Immutable zstd segments. Tenant-safe pruning. Hot, compacted, and archived data read through one checkpoint-pinned view.
Explore the architecture →checkpoint 8,412 · healthy- zstd
- adaptive indexes
- tenant-pruned
YOUR DATA ALREADY KNOWS WHAT HAPPENED.
Make it explain itself.
Send standard OpenTelemetry. Keep the evidence. Investigate the next anomaly from one place.