PreviewThis documents the product as it is being built. Commands and integrations marked PLANNED are not available yet.
Documentation ·

Docs that read like the code.

Pre-deploy benchmark testing for databases — Apache Iceberg today. Concrete, technical, and written alongside the engine. Anything marked PLANNED describes what we're building, not what runs today.

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Engine statusprivate preview, unversioned
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/01 · start here

Four ways in.

tutorial · concept · reference · integration
PILLAR · 01

Getting started

From a described table to a verified baseline. Or follow the deeper end-to-end tutorial.

browse all tutorials · soon
PILLAR · 02

Concepts

The mental model behind synthesis, search, and layout definitions.

browse all concepts · soon
PILLAR · 03

API reference

Every endpoint, every flag, every error code — generated from the engine, not hand-written. Being written now; not published yet.

browse the full API · soon
PILLAR · 04

Integrations

Where Kijun is headed: feeding the report and baseline into the dashboards, pipelines, and alert tools you already use. On the roadmap — not built yet.

see the roadmap →
/02 · five-minute quickstart

From table profile to benchmark report.

Five steps. No more. Today a benchmark run is configured in the Kijun UI — the CLI, CI check and Terraform provider below are the shapes we're building toward, not shipped software.

  1. Describe your Iceberg table — schema, key columns, growth. No catalog access needed.
  2. Point Kijun at the queries you're about to ship.
  3. Set an SLA (latency + write rate) and a scale order-of-magnitude.
  4. Kijun builds the future table on its own infrastructure and measures candidate layouts on AWS Athena.
  5. Read the report, then export the winning layout as Iceberg DDL and the results as JSON or CSV.
PLANNED — the CLI is not available yet. Runs are configured in the Kijun UI today.
# Install
$ brew install kijun-dev/tap/kijun

# Authenticate
$ kijun auth login --token $KIJUN_TOKEN

# Run a benchmark
$ kijun benchmark run \
    --profile     ./orders.iceberg.yml \
    --queries     ./queries/*.sql \
    --scale       300_000_000  # 300M rows \
    --sla         ./production.sla

# Export the winning layout as Iceberg DDL and the results as JSON
$ kijun report export kj_8af3b1c \
    --layout iceberg-ddl --results json
PLANNED — not available yet. The shape of the CI check we're building.
# PLANNED — not available yet. The shape of the CI check we're building.
# .github/workflows/kijun.yml
name: kijun-validate
on: [pull_request]

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: kijun/validate-action@v1
        with:
          profile:  orders.iceberg.yml
          queries:  ./queries/*.sql
          scale:    300_000_000
          sla:      production.sla
          diff:     HEAD~1..HEAD

# Planned: surfaces SLA impact on the PR. Coming, not live.
PLANNED — not available yet. The shape of the provider we're building.
# PLANNED — not available yet. The shape of the provider we're building.
# main.tf
terraform {
  required_providers {
    kijun = {
      source  = "kijun-dev/kijun"
      version = "~> 0.1"
    }
  }
}

# A benchmark profile — not a live production table.
resource "kijun_benchmark_profile" "orders" {
  engine     = "iceberg"
  profile    = "orders-300m-rows"
  baseline   = "kj_8af3b1c"
  sla_p95_ms = 1500
}
/04 · ready

Bring us a table. We'll benchmark it.

Request early accessRead the quickstart →
we read every email · usually reply same day
Benchmark testing for databases. Measure the change before you ship it. Apache Iceberg today.Apache Iceberg engine: ready© 2026 Kijun

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