clickhouse-kafka-connect - GitLite

KO | EN

gitlite — search

#javascript #react #ai #golang #android #linux #docker #macos #awesome #cli #vue #pytorch #security #open-source

clickhouse-kafka-connect

(★ 209)

ClickHouse Kafka Connector

파일 탐색기

최종 버전 다운로드 (.zip)

- - bug_report.md
  - config.yml
  - feature_request.md
- - increment-version.yml
  - integrationTests.yaml
  - pre-release.yaml
  - release.yaml
  - test-head.yaml
  - tests.yaml
- CODEOWNERS
- dependabot.yml
- pull_request_template.md
- .gitattributes
- .gitignore
- build.gradle.kts
- gradle.properties
- gradlew
- gradlew.bat
- README.md
- settings.gradle.kts
- - manifest.json
- architecture.png
- cropping_batches.png
- deduplication.png
- DESIGN.md
- full_state_machine.png
- invalid_states.png
- start_state.png
- - gradle-wrapper.jar
  - gradle-wrapper.properties
- libs.versions.toml
- run-ch-version-client-matrix.sh
.gitattributes
.gitignore
AGENTS.md
AI_POLICY.md
build.gradle.kts
CHANGELOG.md
CLAUDE.md
ClickHouseKafkaConnectDashboard.json
CONTRIBUTING.md
Dockerfile
gradlew
gradlew.bat
jmx-export-connector.yml
LICENSE
README.md
SECURITY.md
settings.gradle.kts
Support Scripts.md
VERSION

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# ClickHouse Kafka Connect Sink

## About
clickhouse-kafka-connect is the official Kafka Connect sink connector for [ClickHouse](https://clickhouse.com/).

The Kafka connector delivers data from a Kafka topic to a ClickHouse table.
## Documentation

See the [ClickHouse website](https://clickhouse.com/docs/en/integrations/kafka/clickhouse-kafka-connect-sink) for the full documentation entry.

## Design
For a full overview of the design and how exactly-once delivery semantics are achieved, see the [design document](./docs/DESIGN.md).

## Help
For additional help, please [file an issue in the repository](https://github.com/ClickHouse/clickhouse-kafka-connect/issues) or raise a question in [ClickHouse public Slack](https://clickhouse.com/slack).

## KeyToValue Transformation
We've created a transformation that allows you to convert a Kafka message key into a value.
This is useful when you want to store the key in a separate column in ClickHouse - by default, the column is `_key` and the type is String.

```sql
CREATE TABLE your_table_name
(
    `your_column_name` String,
    ...
    ...
    ...
    `_key` String
) ENGINE = MergeTree()
```

Simply add the transformation to your connector configuration:
    
```properties
transforms=keyToValue
transforms.keyToValue.type=com.clickhouse.kafka.connect.transforms.KeyToValue
transforms.keyToValue.field=_key
```

## Performance Testing

There is a dedicated gradle project in this repo - `benchmark` for performance testing. 
Please see its [README](./benchmark/README.md) for more information and how to run.