Helyx Oracle to Oracle Database Replication
This repository contains the Helyx Oracle to Oracle replication tool along with step-by-step Process.
Getting Started
Introduction
Helyx is a lightweight, high-performance replication solution designed for real-time heterogeneous database replication. It provides a simple CLI-driven experience and abstracts the complexity of setting up replication pipelines.
Key highlights of Helyx
Heterogeneous Replication
Supports replication across multiple database systems (e.g., PostgreSQL ↔ PostgreSQL, Oracle ↔ Oracle, Oracle → PostgreSQL, Oracle → MySQL, Oracle → MongoDB, Oracle → Snowflake).
High Throughput
Capable of handling hundreds of thousands of transactions per second across distributed data centers.
Schema Evolution Handling
Automatically adapts to schema changes like column additions and keeps source and target databases in sync.
Zero-Downtime Replication
Supports ad-hoc snapshots and live streaming without interrupting production workloads.
Monitoring & Control
Built-in CLI commands allow users to check replication lag, list connectors, view tasks, and monitor end-to-end replication health.
Deployment Friendly
Delivered as containerized application making installation and upgrades straightforward.
Version-Aware Replication
Helyx supports replication between different versions of the same technology stack (e.g., PostgreSQL 11 → PostgreSQL 15 or EDB 12 → EDB 14 or Oracle 11g → Oracle 19c). This ensures smooth migrations and upgrades without downtime. With Helyx, enterprises can achieve enterprise-grade replication with lower operational overhead, faster setup, and proven reliability compared to traditional tools.
Deployment Architecture
Helyx is deployed as a containerized distributed replication platform running on Docker. The architecture consists of a helyx-Sync-Manager for durable event streaming, a Helyx-Schema-Registry-manager for schema management, Helyx-broker-manager for managing services and a Helyx-Connect-service-manager as a replication service.
The Oracle source database operates in ARCHIVELOG mode with supplemental logging, enabling real-time change data captutr [CDC]. Captured changes flow through topics and are applied to the Oracle target database with automatic schema evolution and fault-tolerant, zero-downtime streaming.
