OpenLogReplicator is an open-source Oracle database Change Data Capture (CDC) solution written in C++.

It reads transactions directly from Oracle redo log files (by parsing binary redo logs) and streams changes in JSON or Protobuf format to various targets.

• Kafka
• Flat file
• Network stream (plain TCP/IP or ZeroMQ)
• Discard (for testing)

OpenLogReplicator is released under the GNU General Public License (GPL).

If you have received software that is based on OpenLogReplicator, you are legally entitled to obtain the full corresponding source code of that software.

For details, see the LICENSE file.

For a quick start, refer to the OpenLogReplicator tutorials repository.

1. Introduction to OpenLogReplicator
2. User Manual
   1. Getting Started
   2. Architecture and Components
   3. Output Format
   4. Output Targets
   5. Supported Features
   6. Replication
   7. Startup
   8. Checkpointing
   9. Advanced Topics
3. Reference Manual
4. Configuration
   1. OpenLogReplicator.json
   2. source
   3. reader
   4. debug
   5. format
   6. filter
   7. table
   8. target
   9. writer
   10. memory
   11. metrics
   12. state
5. Installation Guide
6. Release Notes
7. Metrics
8. Troubleshooting Guide
9. Log Message Guide
   1. Runtime Error Messages
   2. Data Error Messages
   3. Configuration Error Messages
   4. Redo Log Error Messages
   5. Internal Error Messages
   6. Warning Messages
   7. Internal Warning Messages
10. Experimental Features

• Tutorials
• FAQ
• Support
• Contribution guidelines

Community discussion is available via Gitter chat.

OpenLogReplicator can be used together with Debezium CDC as a replacement for the LogMiner reader.

OpenLogReplicator is primarily developed and maintained by its author.

Bug reports, feature requests, and discussions are welcome. Please note that ongoing development, maintenance, and support require significant time and effort.

• Issue reports are handled on a best-effort basis.
• Companies using OpenLogReplicator in production are encouraged to support its maintenance.

If OpenLogReplicator is critical to your systems, consider financially supporting the project or contributing improvements upstream instead of maintaining private forks.

Professional support, priority bug fixes, and feature development are available.

If you are:

• Running OpenLogReplicator in production
• Building commercial products or services on top of it
• Requiring guaranteed response times or roadmap influence

please consider the official support options at: https://www.bersler.com/openlogreplicator/support/

If you find OpenLogReplicator useful, consider supporting its development.

Your support directly helps ensure:

• Continued maintenance
• Faster bug fixes
• New features
• Long-term project sustainability

Any contribution is appreciated.