Instrument 04 Cross-stream amplification

Find the copies your stream labels hide.

Sample a Loki export. Lens groups near-identical messages across streams, measures the likely volume and alert inflation, and shows the label and retry evidence to investigate next.

Analyze a sample Install the CLI

Local-only processing
Explicit memory bounds
Evidence, not verdicts

Cutaway illustration of three log signal traces converging through a lens into one paper-chart pulse — Three observed stream traces · one probable logical event

01FingerprintNormalize noisy IDs
02CalibrateSet retry tolerance
03Cross-checkCompare stream labels
04QuantifyEstimate amplification

Bench test · browser edition

Run a bounded investigation

Paste JSONL, a Loki query_range response, or plain lines. This browser edition reads at most 5 MB and never sends the content anywhere.

Input ALocal circuit

Log sample

Secrets remain on this device. Redact sensitive values before sharing exported evidence.

Choose file

Timestamp tolerance

0.5 s 2 s 5 s

Readout BAwaiting sample

No sample on the bench

Load the labeled example or choose a bounded production export.

A match is a lead, not a verdict.

Evidence dial

What the readout can—and cannot—tell you

Strong signal

Same normalized message, tight timestamp spread, multiple stream identities, and one or two varying sharding labels.

Needs context

Recurring health messages or expected fan-out can look identical. Lens preserves evidence so an operator—not an algorithm—decides.

Next check

Compare retry intervals, automatic stream-sharding labels, and producer request IDs before changing the pipeline.

Single binary · no telemetry

Put the lens beside your logs

Build from source today. Release binaries use the same offline engine and stable JSON schema.

LOCAL / OPERATORUTF-8

cargo install --git https://github.com/B-Divyesh/sf-log-duplicate-lens

Scriptable: --json emits schema version 1.

Bounded: --max-events, --max-groups, and --max-input-mb.

Safe: --redact scrubs report previews.

Optional operator upgrade

Field Kit

$29 once · one operator

The analyzer and evidence export stay free. Field Kit unlocks saved local investigation presets and a side-by-side sensitivity sweep for 0.5×, 1×, and 2× your selected retry window.

Buy Field Kit

Secure checkout by Sociobot/Dodo, the merchant of record. Refunds revoke the license automatically.

License socketFree circuit

Preset name

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