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5 changes: 5 additions & 0 deletions .cursor/rules.md
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When making a code review never link to any issue or a pull request
in any GitHub repository!

Do not review AI agents' config files like CLAUDE.md, AGENTS.md or rules.md!

5 changes: 5 additions & 0 deletions .gemini/rules.md
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When making a code review never link to any issue or a pull request
in any GitHub repository!

Do not review AI agents' config files like CLAUDE.md, AGENTS.md or rules.md!

5 changes: 5 additions & 0 deletions AGENTS.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
When making a code review never link to any issue or a pull request
in any GitHub repository!

Do not review AI agents' config files like CLAUDE.md, AGENTS.md or rules.md!

5 changes: 5 additions & 0 deletions CLAUDE.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
When making a code review never link to any issue or a pull request
in any GitHub repository!

Do not review AI agents' config files like CLAUDE.md, AGENTS.md or rules.md!

82 changes: 82 additions & 0 deletions docker-compose.quick.yml
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.

# Quick-start cluster using pre-built images from GHCR.
# No local build required — Docker is the only prerequisite.
#
# Runs the last stable release. To test against unreleased changes,
# use docker-compose.yml (requires `cargo build --release` first).
#
# Usage:
# docker compose -f docker-compose.quick.yml up
#
# Connect from Rust:
# SessionContext::remote("df://localhost:50050").await?
#
# Connect from the CLI:
# cargo run -p ballista-cli -- --host localhost --port 50050
#
# To make local data available inside executors, uncomment and
# set the volume path under ballista-executor:
# volumes:
# - /absolute/path/to/your/data:/data:ro

services:
ballista-scheduler:
image: ghcr.io/apache/datafusion-ballista-scheduler:latest
# --advertise-flight-sql-endpoint enables the scheduler to proxy all
# result fetching so clients only ever connect to port 50050.
# Without this flag, clients would need direct access to each
# executor's Arrow Flight port, which breaks in Docker networking.
command: >
--bind-host 0.0.0.0
--external-host ballista-scheduler
--advertise-flight-sql-endpoint
Comment on lines +45 to +48

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high

When running the quick-start cluster locally, clients (such as the Ballista CLI or a Rust application) connect from the host machine to localhost:50050.

If --external-host is set to ballista-scheduler, the scheduler will advertise ballista-scheduler:50050 as the endpoint for fetching query results. Since ballista-scheduler is not resolvable by the host machine's DNS, any host-based client will fail to connect and fetch results.

Setting --external-host localhost ensures that host-based clients can successfully resolve and connect to the advertised endpoint, while executors can still connect to the scheduler using the Docker service name ballista-scheduler via --scheduler-host.

    command: >
      --bind-host 0.0.0.0
      --external-host localhost
      --advertise-flight-sql-endpoint

ports:
- "50050:50050"
environment:
- RUST_LOG=ballista=info,ballista_scheduler=info
healthcheck:
test: ["CMD", "bash", "-c", "</dev/tcp/127.0.0.1/50050"]
interval: 5s
timeout: 5s
retries: 10
restart: "no"

ballista-executor:
image: ghcr.io/apache/datafusion-ballista-executor:latest
command: >
--bind-host 0.0.0.0
--scheduler-host ballista-scheduler
--concurrent-tasks 4
--work-dir /work
environment:
- RUST_LOG=ballista=info,ballista_executor=info
# Uncomment to mount local data for queries:
# volumes:
# - /absolute/path/to/your/data:/data:ro
depends_on:
ballista-scheduler:
condition: service_healthy
healthcheck:
test: ["CMD", "bash", "-c", "</dev/tcp/127.0.0.1/50051"]
interval: 5s
timeout: 5s
retries: 10
restart: "no"
deploy:
replicas: 2

@augmentcode augmentcode Bot Jun 19, 2026

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deploy.replicas is ignored by docker compose up (non-Swarm), so this file will likely start only a single ballista-executor container despite replicas: 2. That would make the quickstart output/statement about two executors misleading unless users run in Swarm mode or explicitly scale the service.

Severity: medium

Other Locations
  • docs/source/user-guide/deployment/quick-start.md:53
  • docs/source/user-guide/deployment/quick-start.md:56

Fix This in Augment

🤖 Was this useful? React with 👍 or 👎, or 🚀 if it prevented an incident/outage.

50 changes: 32 additions & 18 deletions docs/source/user-guide/deployment/docker-compose.md
Original file line number Diff line number Diff line change
Expand Up @@ -19,37 +19,51 @@

# Starting a Ballista Cluster using Docker Compose

Docker Compose is a convenient way to launch a cluster when testing locally.
Two Compose files are provided. Choose based on whether you need the last stable release
or want to run against local source changes.

## Build Docker Images
## Option 1: Pre-built images (no local build required)

To create the required Docker images please refer to the [docker deployment page](docker.md).
`docker-compose.quick.yml` pulls images directly from GHCR — no Rust toolchain needed.
Images are published on each stable release; `latest` tracks the most recent release,
not the `main` branch.

## Start a Cluster
```bash
docker compose -f docker-compose.quick.yml up
```

See the [quickstart guide](quick-start.md) for connection instructions and data volume setup.

Using the [docker-compose.yml](https://github.com/apache/datafusion-ballista/blob/main/docker-compose.yml) from the
source repository, run the following command to start a cluster:
## Option 2: Build from source

`docker-compose.yml` builds executor and scheduler images from the local Dockerfiles.
The Dockerfiles copy pre-compiled binaries — they do **not** run `cargo build` themselves.
You must compile first:

```bash
docker-compose up --build
# Step 1 — compile (requires Rust + protoc, takes ~20 min cold)
cargo build --release

# Step 2 — build Docker images and start the cluster
docker compose up --build
```

This should show output similar to the following:
Skipping Step 1 will cause the build to fail because the `COPY target/release/ballista-*`
instruction in the Dockerfiles will find no binaries to copy.

Expected output after a successful start:

```bash
$ docker-compose up
Creating network "ballista-benchmarks_default" with the default driver
Creating ballista-benchmarks_ballista-scheduler_1 ... done
Creating ballista-benchmarks_ballista-executor_1 ... done
Attaching to ballista-benchmarks_ballista-scheduler_1, ballista-benchmarks_ballista-executor_1
ballista-scheduler_1 | INFO ballista_scheduler: Ballista v52.0.0 Scheduler listening on 0.0.0.0:50050
ballista-executor_1 | INFO ballista_executor: Ballista v52.0.0 Rust Executor listening on 0.0.0.0:50051
```
ballista-scheduler_1 | Ballista Scheduler listening on 0.0.0.0:50050

@augmentcode augmentcode Bot Jun 19, 2026

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The example log prefixes here (ballista-scheduler_1 / ballista-executor_1) match legacy docker-compose output; with docker compose v2 they typically appear as ...-1, so this snippet may not match what users actually see.

Severity: low

Fix This in Augment

🤖 Was this useful? React with 👍 or 👎, or 🚀 if it prevented an incident/outage.

ballista-executor_1 | Executor registration succeed
```
Comment on lines +54 to 59

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⚠️ Potential issue | 🟡 Minor | ⚡ Quick win

Use the hyphenated container names here.

This sample still uses the old _1 suffixes, while the rest of the quick-start docs use the service-1 form. That mismatch will send readers looking for the wrong container names. Please also tag the fence as text or console so markdownlint stops warning.

♻️ Suggested fix
-```
-ballista-scheduler_1  | Ballista Scheduler listening on 0.0.0.0:50050
-ballista-executor_1   | Executor registration succeed
-```
+```text
+ballista-scheduler-1  | Ballista Scheduler listening on 0.0.0.0:50050
+ballista-executor-1   | Executor registration succeed
+```
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
Expected output after a successful start:
```bash
$ docker-compose up
Creating network "ballista-benchmarks_default" with the default driver
Creating ballista-benchmarks_ballista-scheduler_1 ... done
Creating ballista-benchmarks_ballista-executor_1 ... done
Attaching to ballista-benchmarks_ballista-scheduler_1, ballista-benchmarks_ballista-executor_1
ballista-scheduler_1 | INFO ballista_scheduler: Ballista v52.0.0 Scheduler listening on 0.0.0.0:50050
ballista-executor_1 | INFO ballista_executor: Ballista v52.0.0 Rust Executor listening on 0.0.0.0:50051
```
ballista-scheduler_1 | Ballista Scheduler listening on 0.0.0.0:50050
ballista-executor_1 | Executor registration succeed
```
Expected output after a successful start:
🧰 Tools
🪛 markdownlint-cli2 (0.22.1)

[warning] 56-56: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@docs/source/user-guide/deployment/docker-compose.md` around lines 54 - 59, In
the expected output section showing successful Docker Compose startup messages,
update the container name references from the old underscore format to the
hyphenated format for consistency with the rest of the documentation. Replace
`ballista-scheduler_1` with `ballista-scheduler-1` and `ballista-executor_1`
with `ballista-executor-1`. Additionally, add the `text` language tag to the
opening code fence triple backticks to resolve markdownlint warnings.

Source: Linters/SAST tools


The scheduler listens on port 50050 and this is the port that clients will need to connect to.
The scheduler listens on port 50050.

## Connect from the Ballista CLI

No pre-built CLI image is published to GHCR. Build it locally from source:

```shell
docker run --network=host -it apache/datafusion-ballista-cli:latest --host localhost --port 50050
cargo run -p ballista-cli -- --host localhost --port 50050
```
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