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name seatunnel-skill description Apache SeaTunnel - A multimodal, high-performance, distributed data integration tool for massive data synchronization across 100+ connectors author auto-generated by repo2skill platform github source https://github.com/apache/seatunnel website_source https://github.com/apache/seatunnel-website tags ["data-integration","data-pipeline","etl","elt","real-time-streaming","batch-processing","cdc","distributed-computing","apache","java","docusaurus","documentation"] version 2.3.13 generated "2026-02-26T00:00:00.000Z" license Apache 2.0 repository apache/seatunnel website_repository apache/seatunnel-website
Apache SeaTunnel OpenCode Skill
Apache SeaTunnel is a multimodal, high-performance, distributed data integration tool capable of synchronizing vast amounts of data daily. It connects hundreds of evolving data sources with support for real-time, CDC (Change Data Capture), and full database synchronization.
Quick Start
Prerequisites
Java : JDK 8 or higherMaven : 3.6.0 or higher (for building from source)Python : 3.7+ (optional, for Python API)Git : For cloning the repository
Installation
1. Clone Repository
git clone https://github.com/apache/seatunnel.git
cd seatunnel
2. Build from Source
mvn clean install -DskipTests
mvn clean install -pl seatunnel-core -DskipTests
3. Download Pre-built Binary (Recommended)
Visit the official download page and select your version:
VERSION=2.3.12
wget https://archive.apache.org/dist/seatunnel/${VERSION} /apache-seatunnel-${VERSION} -bin.tar.gz
tar -xzf apache-seatunnel-${VERSION} -bin.tar.gz
cd apache-seatunnel-${VERSION}
4. Basic Configuration
export JAVA_HOME=/path/to/java
export PATH=$PATH :/path/to/seatunnel/bin
5. Verify Installation
seatunnel --version
Hello World Example
Create a simple data integration job:
config/hello_world.conf
env {
job.mode = "BATCH"
job.name = "Hello World"
}
source {
FakeSource {
row.num = 100
schema = {
fields {
id = "bigint"
name = "string"
age = "int"
}
}
}
}
sink {
Console {
format = "json"
}
}
seatunnel.sh -c config/hello_world.conf -e spark
seatunnel.sh -c config/hello_world.conf -e flink
Overview
Purpose and Target Users SeaTunnel is designed for:
Data Engineers : Building large-scale data pipelines with minimal complexityDevOps Teams : Managing data integration infrastructureEnterprise Platforms : Handling 100+ billion data records dailyReal-time Analytics : Supporting streaming data synchronizationLegacy System Migration : CDC-based incremental sync from transactional databases
Core Capabilities
Multimodal Support
Structured data (databases, data warehouses)
Unstructured data (video, images, binaries)
Semi-structured data (JSON, logs, binlog streams)
Multiple Synchronization Methods
Batch : Full historical data transferStreaming : Real-time data pipelineCDC : Incremental capture from databasesFull + Incremental : Combined approach
100+ Pre-built Connectors
Databases: MySQL, PostgreSQL, Oracle, SQL Server, MongoDB, DB2, OceanBase
Data Warehouses: Snowflake, BigQuery, Redshift, Iceberg
Data Lakes: Hive, Iceberg, Hudi, Paimon
Cloud SaaS: Salesforce, Shopify, Google Sheets
Message Queues: Kafka, RabbitMQ, Pulsar, RocketMQ, ActiveMQ
Search Engines: Elasticsearch, OpenSearch, Easysearch
OLAP Engines: ClickHouse, StarRocks, Doris, Druid
Time-series Databases: IoTDB, TDengine, InfluxDB
Vector Databases: Milvus, Qdrant
Graph Databases: Neo4j
Object Storage: S3, GCS, HDFS, OssFile, CosFile
Multi-Engine Support
Zeta Engine : Lightweight, standalone deployment (no Spark/Flink required)Apache Flink : Distributed streaming engineApache Spark : Distributed batch/batch-stream processing
Features
High-Performance
Distributed Snapshot Algorithm : Ensures data consistency without locksJDBC Multiplexing : Minimizes database connections for real-time syncLog Parsing : Efficient CDC implementation with binary log analysisResource Optimization : Reduces computing resources and I/O overhead
Data Quality & Reliability
Real-time Monitoring : Track synchronization progress and data metricsData Loss Prevention : Transactional guarantees (exactly-once semantics)Deduplication : Prevents duplicate records during reprocessingError Handling : Graceful failure recovery and retry logic
Developer-Friendly
SQL-like Configuration : Intuitive HOCON job definition syntaxVisual Web UI : Drag-and-drop job builder (SeaTunnel Web Project)Extensive Documentation : Comprehensive guides with i18n (English + Chinese)Community Support : Active community via Slack and mailing lists
Production Ready
Proven at Scale : Used in enterprises processing billions of records dailyVersion Stability : Regular releases with backward compatibilityEnterprise Features : Multi-tenancy, RBAC, audit loggingCloud Native : Kubernetes-ready deployment
Installation
Installation Methods
Method 1: Binary Download (Recommended for Quick Start)
VERSION=2.3.12
wget https://archive.apache.org/dist/seatunnel/${VERSION} /apache-seatunnel-${VERSION} -bin.tar.gz
tar -xzf apache-seatunnel-${VERSION} -bin.tar.gz
cd apache-seatunnel-${VERSION}
./bin/seatunnel.sh --version
Method 2: Build from Source
git clone https://github.com/apache/seatunnel.git
cd seatunnel
mvn clean install -DskipTests
cd seatunnel-dist/target/apache-seatunnel-*-bin/apache-seatunnel-*
./bin/seatunnel.sh --version
Method 3: Docker
docker pull apache/seatunnel:latest
docker run -it apache/seatunnel:latest /bin/bash
docker run -v /path/to/config:/config \
apache/seatunnel:latest \
seatunnel.sh -c /config/job.conf -e spark
Environment Setup
Set Java Home
export JAVA_HOME=/path/to/java
export PATH=$JAVA_HOME /bin:$PATH
java -version
Configure for Spark Engine
export SPARK_HOME=/path/to/spark
$SPARK_HOME /bin/spark-submit --version
Configure for Flink Engine
export FLINK_HOME=/path/to/flink
$FLINK_HOME /bin/flink --version
System Requirements Requirement Version/Spec Java JDK 1.8+ Memory 2GB+ (minimum), 8GB+ (recommended) Disk 500MB (binary) + job storage Network Connectivity to source/sink systems Scala 2.12.15 (for Spark/Flink integration)
Usage
1. Job Configuration (HOCON Format) SeaTunnel uses HOCON (Human-Optimized Config Object Notation) for job configuration.
env {
job.mode = "BATCH" # or STREAMING
job.name = "My Job"
parallelism = 4
}
source {
SourceConnector {
option1 = value1
option2 = value2
schema = {
fields {
column1 = "type"
column2 = "type"
}
}
}
}
# Optional: Transform data
transform {
TransformName {
option = value
}
}
sink {
SinkConnector {
option1 = value1
option2 = value2
}
}
2. Common Use Cases
Use Case 1: MySQL to PostgreSQL (Batch) config/mysql_to_postgres.conf
env {
job.mode = "BATCH"
job.name = "MySQL to PostgreSQL"
}
source {
Jdbc {
driver = "com.mysql.cj.jdbc.Driver"
url = "jdbc:mysql://mysql-host:3306/mydb"
user = "root"
password = "password"
query = "SELECT * FROM users"
connection_check_timeout_sec = 100
}
}
sink {
Jdbc {
driver = "org.postgresql.Driver"
url = "jdbc:postgresql://pg-host:5432/mydb"
user = "postgres"
password = "password"
database = "mydb"
table = "users"
primary_keys = ["id"]
connection_check_timeout_sec = 100
}
}
seatunnel.sh -c config/mysql_to_postgres.conf -e spark
Use Case 2: Kafka Streaming to Elasticsearch env {
job.mode = "STREAMING"
job.name = "Kafka to Elasticsearch"
parallelism = 2
}
source {
Kafka {
bootstrap.servers = "kafka-host:9092"
topic = "events"
patterns = "event.*"
consumer.group = "seatunnel-group"
format = "json"
schema = {
fields {
event_id = "bigint"
event_name = "string"
timestamp = "bigint"
payload = "string"
}
}
}
}
transform {
Sql {
sql = "SELECT event_id, event_name, FROM_UNIXTIME(timestamp/1000) as ts, payload FROM source"
}
}
sink {
Elasticsearch {
hosts = ["es-host:9200"]
index = "events"
index_type = "_doc"
username = "elastic"
password = "password"
}
}
seatunnel.sh -c config/kafka_to_es.conf -e flink
Use Case 3: CDC from MySQL to Kafka config/mysql_cdc_kafka.conf
env {
job.mode = "STREAMING"
job.name = "MySQL CDC to Kafka"
}
source {
Mysql {
server_id = 5400
hostname = "mysql-host"
port = 3306
username = "root"
password = "password"
database = ["mydb"]
table = ["users", "orders"]
startup.mode = "initial"
snapshot.split.size = 8096
incremental.snapshot.chunk.size = 1024
snapshot_fetch_size = 1024
snapshot_lock_timeout_sec = 10
server_time_zone = "UTC"
}
}
sink {
Kafka {
bootstrap.servers = "kafka-host:9092"
topic = "mysql_cdc"
format = "canal_json"
semantic = "EXACTLY_ONCE"
}
}
seatunnel.sh -c config/mysql_cdc_kafka.conf -e flink
3. Running Jobs
Local Mode (Single Machine)
seatunnel.sh -c config/job.conf -e spark
seatunnel.sh -c config/job.conf -e flink
seatunnel.sh -c config/job.conf -e zeta
Cluster Mode
seatunnel.sh -c config/job.conf -e spark -m cluster -n hadoop-master:7077
seatunnel.sh -c config/job.conf -e flink -m remote -s localhost 8081
Verbose Output seatunnel.sh -c config/job.conf -e spark -l DEBUG
Check Status
spark-submit --status <driver-id>
$FLINK_HOME /bin/flink list
4. SQL API (Advanced) Use SQL for complex transformations:
source {
MySQL {
# Source config...
}
}
transform {
Sql {
# Multiple SQL statements
sql = """
SELECT
id,
UPPER(name) as name,
age + 10 as age_plus_10,
CURRENT_TIMESTAMP as created_at
FROM source
WHERE age > 18
"""
}
}
sink {
PostgreSQL {
# Sink config...
}
}
API Reference
Core Connector Types
Source Connectors
Jdbc : Generic JDBC databases (MySQL, PostgreSQL, Oracle, SQL Server, DB2, OceanBase)Kafka : Apache Kafka topicsMysql : MySQL with CDC supportMongoDB : MongoDB collectionsPostgreSQL : PostgreSQL with CDCS3/OssFile/CosFile/HdfsFile : Object storage / file systemsHttp : HTTP/HTTPS endpointsHive/Iceberg/Hudi/Paimon : Data lake formatsElasticsearch/Easysearch : Search enginesRedis/HBase/Cassandra : NoSQL databasesPulsar/RocketMQ/RabbitMQ/ActiveMQ : Message queuesClickHouse/StarRocks/Doris/Druid : OLAP enginesIoTDB/TDengine/InfluxDB : Time-series databasesMilvus/Qdrant : Vector databasesNeo4j : Graph databasesFakeSource : For testing and development
Transform Connectors
Sql : Execute SQL transformationsDummy : Pass-through (testing)FieldMapper : Rename/map columnsJsonPath : Extract data from JSON
Sink Connectors
Jdbc : Write to JDBC-compatible databasesKafka : Publish to Kafka topicsElasticsearch : Write to Elasticsearch indicesS3 : Write to S3 bucketsRedis : Write to RedisHBase : Write to HBase tablesStarRocks : Write to StarRocks tablesClickHouse/Doris/Druid : Write to OLAP enginesHive/Iceberg/Hudi/Paimon : Write to data lakesConsole : Output to console (testing) All source connectors above also have corresponding sink implementations where applicable.
Configuration Options
Common Source Options source {
ConnectorName {
# Connection
hostname = "host"
port = 3306
username = "user"
password = "pass"
# Data selection
database = "db_name"
table = "table_name"
# Performance
fetch_size = 1000
connection_check_timeout_sec = 100
split_size = 10000
# Schema
schema = {
fields {
id = "bigint"
name = "string"
}
}
}
}
Common Sink Options sink {
ConnectorName {
# Connection
hostname = "host"
port = 3306
username = "user"
password = "pass"
# Write behavior
database = "db_name"
table = "table_name"
primary_keys = ["id"]
batch_size = 500
# Error handling
max_retries = 3
retry_wait_time_ms = 1000
on_duplicate_key_update_column_names = ["field1"]
}
}
Engine Options env {
# Execution mode
job.mode = "BATCH" # or STREAMING
# Job identity
job.name = "My Job"
# Parallelism
parallelism = 4
# Checkpoint (streaming)
checkpoint.interval = 60000
# Restart strategy
restart_strategy = "fixed_delay"
restart_strategy.fixed_delay.attempts = 3
restart_strategy.fixed_delay.delay = 10000
}
Debugging and Monitoring
View Job Metrics
tail -f logs/seatunnel.log
grep ERROR logs/seatunnel.log
Enable Debug Logging
seatunnel.sh -c config/job.conf -e spark -l DEBUG
Use Test Sources source {
FakeSource {
row.num = 1000
schema = {
fields {
id = "bigint"
name = "string"
}
}
}
}
sink {
Console {
format = "json"
}
}
Configuration
Project Structure seatunnel/
├── bin/ # Executable scripts
│ ├── seatunnel.sh # Main entry point
│ └── seatunnel-submit.sh # Spark submission script
├── config/ # Configuration examples
│ ├── flink-conf.yaml # Flink configuration
│ └── spark-conf.yaml # Spark configuration
├── connectors/ # Pre-built connectors
├── lib/ # JAR dependencies
├── logs/ # Runtime logs
└── plugin/ # Plugin directory
Environment Variables
export JAVA_HOME=/path/to/java
export JVM_OPTS="-Xms1G -Xmx4G"
export SPARK_HOME=/path/to/spark
export SPARK_MASTER=spark://master:7077
export FLINK_HOME=/path/to/flink
export SEATUNNEL_HOME=/path/to/seatunnel
Key Configuration Files
seatunnel-env.shConfigure runtime environment:
JAVA_HOME=/path/to/java
JVM_OPTS="-Xms1G -Xmx4G -XX:+UseG1GC"
SPARK_HOME=/path/to/spark
FLINK_HOME=/path/to/flink
flink-conf.yaml (for Flink engine)taskmanager.memory.process.size: 2g
taskmanager.memory.jvm-overhead.fraction: 0.1
parallelism.default: 4
spark-conf.yaml (for Spark engine)driver-memory: 2g
executor-memory: 4g
num-executors: 4
Performance Tuning
For Batch Jobs env {
job.mode = "BATCH"
parallelism = 8 # Increase for larger clusters
}
source {
Jdbc {
# Split large tables for parallel reads
split_size = 100000
fetch_size = 5000
}
}
sink {
Jdbc {
# Batch inserts for better throughput
batch_size = 1000
# Use connection pooling
max_retries = 3
}
}
For Streaming Jobs env {
job.mode = "STREAMING"
parallelism = 4
checkpoint.interval = 30000 # 30 seconds
}
source {
Kafka {
# Consumer group for parallel reads
consumer.group = "seatunnel-consumer"
# Batch reading
max_poll_records = 500
}
}
Website & Documentation System The official documentation site (https://seatunnel.apache.org ) is managed through the apache/seatunnel-website repository, built with Docusaurus 2.4.3 .
How Documentation Works Documentation content lives in the main codebase (apache/seatunnel repo, docs/ directory). The website repo fetches docs via npm run sync (or tools/build-docs.js) before building.
Creates swap/ directory, clones apache/seatunnel codebase
Copies docs/en to website's docs/ directory
Copies docs/zh to i18n/zh-CN/ for Chinese translations
Copies docs/images to static/image_en and static/image_zh
Copies docs/sidebars.js to root level
Website Repository Structure seatunnel-website/
├── blog/ # Blog posts (EN)
├── community/ # Community docs
│ ├── contribution_guide/ # Contribution guidelines
│ │ ├── contribute.md
│ │ ├── committer.md
│ │ ├── code-review.md
│ │ ├── release.md
│ │ └── subscribe.md
│ └── submit_guide/ # Submission guidelines
│ ├── document.md
│ ├── license.md
│ └── submit-code.md
├── docs/ # Current version docs (synced from main repo)
├── docusaurus.config.js # Site configuration
├── i18n/zh-CN/ # Chinese translations
│ ├── docusaurus-plugin-content-blog/
│ ├── docusaurus-plugin-content-docs/
│ └── docusaurus-plugin-content-docs-community/
├── package.json
├── sidebars.js # Doc sidebar config (synced)
├── src/
│ ├── components/
│ ├── css/
│ ├── pages/
│ │ ├── home/ # Homepage
│ │ ├── team/ # Team page (with Base64 avatars)
│ │ ├── user/ # User showcase
│ │ └── versions/ # Version selector
│ └── styles/
├── static/ # Static assets
│ ├── doc/image/, image_en/, image_zh/
│ ├── home/, image/, user/
│ └── js/google_translate_init.js
├── tools/
│ ├── build-docs.js # Doc sync script
│ ├── common.js # Shared constants
│ ├── version.js # Version management
│ ├── image-copy.js # Image processing
│ └── fetch-team-avatars.js # Team avatar updater
├── versioned_docs/ # Historical version docs (20 versions: 1.x ~ 2.3.12)
├── versioned_sidebars/ # Historical sidebars
├── versions.json # Version registry
└── seatunnel_web_versions.json # Web UI version registry
Documentation Categories (per version) Each version's docs contain:
about.md - Project overviewcommand/ - CLI commands (e.g., connector-check)concept/ - Core concepts (config, schema-evolution, speed-limit, SQL config, event-listener)connector-v2/ - Connector documentation
source/ - Source connector docs (100+ connectors)sink/ - Sink connector docschangelog/ - Per-connector changelogsformats/ - Data formats (Avro, Canal JSON, Debezium JSON, OGG JSON, Protobuf)
contribution/ - Contributor guidesfaq.md - Frequently asked questionsother-engine/ - Flink/Spark engine specificsseatunnel-engine/ - Zeta engine docs + telemetrystart-v2/ - Getting started guides
docker/ - Docker deploymentkubernetes/ - K8s deploymentlocally/ - Local setup
transform-v2/ - Transform documentation (SQL, etc.)
Versioned Documentation 20 historical versions maintained: 1.x, 2.1.02.1.3, 2.2.0-beta, 2.3.0-beta2.3.12
Total: ~3691 versioned doc files + ~1652 i18n files
Website Development
git clone git@github.com:apache/seatunnel-website.git
cd seatunnel-website
npm run sync
npm install
npm run start
npm run start-zh
npm run build
npm run build:fast
npm run serve
Adding a New Version
npm run version <target_version>
Branching Strategy
CI/CD GitHub Actions workflow (.github/workflows/deploy.yml):
Triggers: push to main, PRs to main, daily cron (5:00 AM UTC)
Node.js 18.20.7
Steps: npm install -> npm run sync -> npm run build -> deploy to asf-site branch
Key Conventions
Directory names: lowercase, underscore-separated, plural (e.g., scripts, components)
JS/static files: lowercase, dash-separated (e.g., render-dom.js)
Images: stored under static/{module_name}
Styles: placed in src/css/
Most pages have "Edit this page" link pointing to GitHub source
Development
Project Architecture SeaTunnel follows a modular architecture:
seatunnel/
├── seatunnel-api/ # Core APIs
├── seatunnel-core/ # Execution engine
├── seatunnel-engines/ # Engine implementations
│ ├── seatunnel-engine-flink/
│ ├── seatunnel-engine-spark/
│ └── seatunnel-engine-zeta/
├── seatunnel-connectors/ # 100+ connector implementations
│ ├── seatunnel-connectors-*/ # One per connector type
└── seatunnel-dist/ # Distribution package
Building from Source
Full Build
git clone https://github.com/apache/seatunnel.git
cd seatunnel
mvn clean install -DskipTests
mvn clean install
Build Specific Module
mvn clean install -pl seatunnel-connectors/seatunnel-connectors-seatunnel-kafka -DskipTests
mvn clean install -pl seatunnel-engines/seatunnel-engine-flink -DskipTests
Build Distribution
mvn clean install -DskipTests
cd seatunnel-dist
tar -tzf target/apache-seatunnel-*-bin.tar.gz | head
Running Tests
Unit Tests
mvn test
mvn test -Dtest=MySqlConnectorTest
mvn test jacoco:report
Integration Tests
mvn verify
mvn verify -Pintegration-tests
Development Setup
IDE Configuration (IntelliJ IDEA)
Import Project
File → Open → Select seatunnel directory
Choose Maven as build system
Configure JDK
Project Settings → Project → JDK
Select JDK 1.8 or higher
Enable Annotation Processing
Project Settings → Build → Compiler → Annotation Processors
Enable annotation processing
Run Configuration
Run → Edit Configurations
Add new "Application" configuration
Set main class: org.apache.seatunnel.core.starter.command.CommandExecuteRunner
Code Style SeaTunnel follows Apache project conventions:
4-space indentation (not tabs)
Line length max 120 characters
Standard Java naming conventions
Organize imports alphabetically
Use the provided .editorconfig:
Creating Custom Connectors
1. Extend SeConnector Interface import org.apache.seatunnel.api.source.SeSource;
import org.apache.seatunnel.api.table.catalog.Table;
public class CustomSource extends SeSource {
@Override
public String getPluginName () {
return "Custom" ;
}
@Override
public void validate () {
}
@Override
public ResultSet read (Boundedness boundedness) {
}
}
2. Create Configuration Class import org.apache.seatunnel.api.configuration.Option;
import org.apache.seatunnel.api.configuration.Options;
public class CustomSourceOptions {
public static final Option<String> HOST =
Options.key("host" )
.stringType()
.noDefaultValue()
.withDescription("Source hostname" );
public static final Option<Integer> PORT =
Options.key("port" )
.intType()
.defaultValue(9200 )
.withDescription("Source port" );
}
3. Register Connector META-INF/services/org.apache.seatunnel.api.source.SeSource
Contributing Guide
Fork and Clone
git clone https://github.com/YOUR_USERNAME/seatunnel.git
cd seatunnel
git remote add upstream https://github.com/apache/seatunnel.git
Create Feature Branch
git checkout -b feature/my-feature
Make Changes
Follow code style guide
Add tests for new features
Update documentation
Commit and Push
git add .
git commit -m "feat: add new feature"
git push origin feature/my-feature
Create Pull Request
Go to GitHub repository
Create PR with clear description
Link any related issues
Wait for review
Code Review Process
Address feedback from maintainers
Update PR with changes
After approval, maintainers will merge
Troubleshooting
Common Issues and Solutions
Issue 1: "ClassNotFoundException: com.mysql.jdbc.Driver" Cause : JDBC driver JAR not in classpath
wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-8.0.33.jar
cp mysql-connector-java-8.0.33.jar $SEATUNNEL_HOME /lib/
seatunnel.sh -c config/job.conf -e spark
Issue 2: "OutOfMemoryError: Java heap space" Cause : Insufficient JVM heap memory
export JVM_OPTS="-Xms2G -Xmx8G"
echo 'JVM_OPTS="-Xms2G -Xmx8G"' >> $SEATUNNEL_HOME /bin/seatunnel-env.sh
Issue 3: "Connection refused: connect" Cause : Source/sink service not reachable
ping source-host
telnet source-host 3306
mysql -h source-host -u root -p
Issue 4: "Table not found" during CDC Cause : Binlog not enabled on MySQL
SHOW VARIABLES LIKE 'log_bin' ;
[mysqld]
log_bin = mysql- bin
binlog_format = row # Important for CDC
SHOW MASTER STATUS;
Issue 5: Slow Job Performance Cause : Suboptimal configuration
# 1. Increase parallelism
env {
parallelism = 8 # or higher based on cluster
}
# 2. Increase batch sizes
source {
Jdbc {
fetch_size = 5000
split_size = 100000
}
}
sink {
Jdbc {
batch_size = 2000
}
}
# 3. Enable connection pooling
source {
Jdbc {
pool_size = 10
max_idle_time = 300
}
}
Issue 6: "Kafka topic offset out of range" Cause : Offset doesn't exist in topic
source {
Kafka {
# Reset to earliest or latest
auto.offset.reset = "earliest" # or "latest"
# Or specify explicit offsets
start_mode = "earliest"
}
}
FAQ Q: What's the difference between BATCH and STREAMING mode?
BATCH : One-time execution, suitable for full database migrationSTREAMING : Continuous execution, suitable for real-time data sync and CDC Q: How do I handle schema changes during CDC?
A: SeaTunnel automatically detects schema changes in CDC mode. Configure in source:
source {
Mysql {
schema_change_mode = "auto" # auto-detect and apply
}
}
Q: Can I transform data during synchronization?
A: Yes, use SQL transform:
transform {
Sql {
sql = "SELECT id, UPPER(name) as name FROM source"
}
}
Q: What's the maximum throughput?
Hardware (CPU, RAM, Network)
Source/sink database configuration
Data size per record
Network latency
Typical throughput: 100K - 1M records/second per executor
Q: How do I handle errors in production?
A: Configure restart strategy:
env {
restart_strategy = "exponential_delay"
restart_strategy.exponential_delay.initial_delay = 1000
restart_strategy.exponential_delay.max_delay = 30000
restart_strategy.exponential_delay.multiplier = 2.0
restart_strategy.exponential_delay.attempts_unlimited = true
}
Q: Is there a web UI for job management?
A: Yes! Use SeaTunnel Web Project :
git clone https://github.com/apache/seatunnel-web.git
cd seatunnel-web
mvn clean install
java -jar target/seatunnel-web-*.jar
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Version History
2.3.12 (Latest Stable) - Current recommended version2.3.13-SNAPSHOT (Development)20 historical versions maintained in documentation (1.x ~ 2.3.12)
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Additional Notes
License Apache License 2.0 - See LICENSE file
Security
Report security issues via Apache Security
Do NOT create public issues for security vulnerabilities
Support & Contribution
Join the community Slack for support
Submit feature requests on GitHub Issues
Contribute code via Pull Requests
Follow Contributing Guide
Last Updated : 2026-02-26
Skill Version : 2.3.13
Sources : apache/seatunnel + apache/seatunnel-website
