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What is Real-Time Database Replication?
Database replication refers to the technology of synchronizing data from a source database to one or more target databases in real time or at regular intervals. It ensures that data remains consistent across different databases and can be used in scenarios such as data backup, disaster recovery, load balancing, and data analysis.
Data Availability
Data Integration
Load Balancing
data Integrity
What is i2Stream?
i2Stream is an enterprise-grade database replication software that provides real-time data sync, disaster recovery, migration, and integration for homogeneous and heterogeneous databases. Based on advanced log parsing and stream data processing technologies, it can achieve millisecond-level latency data sync in high-concurrency environments, strictly ensuring transaction-level consistency, and supports integrated DDL/DML sync.
Working Machine
The source host for data replication; the Worker program reads data from the user's production system and sends it to the target backup server over an IP network. Simultaneously, it captures IO changes in the source file system and sends them to the target system in serialized transmission over an IP network.
Replication
Disaster Recovery Machine
The target host for data replication; the Disaster Recovery program receives production data over the IP network and saves it to the local file system in the same file IO write order as the source end.
Control Machine
The host providing the web interface console service; it provides a unified data management platform service, enabling users to manage and utilize node resources and rule tasks.
Scenarios of i2Stream
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Why Choose i2Stream?
Efficient Data Capture and Sync
Through multi-threaded parallel analysis of database operation logs, real-time data sync is achieved in seconds, supporting integrated sync of DML and DDL, data and objects, ensuring timely and accurate data.
Agentless design
Adopting agentless mode, there is no need to deploy software in the production system, which has zero impact and zero intrusion on the performance of the production database and guarantees business continuity.
Wide Compatibility
Supports multiple relational databases and big data platforms, enabling cross-platform and cross-version data sync to meet the needs of different scenarios.
Visual Management Interface
Equipped with graphical management interface, the sync process is visualized to enhance user experience and operation and maintenance efficiency, and simplify the operation process.
i2Stream Advantages in Database Replication
Comprehensive Database & Platform Support
- Supports replication across heterogeneous storage devices and host platforms with seamless interoperability.
- Enables real-time data replication between homogeneous and heterogeneous data sources for scenarios including data migration, database scaling, disaster recovery, and data warehouse integration.
- Compatible with 40+ database environments including Oracle, SQL Server, DB2, MySQL, PostgreSQL, and big data platforms.
Real-Time Data Sync
- Implements logical replication strategy based on online log capture without affecting source/target database operations.
- Supports both archived and non-archived database modes for data replication.
- Provides sub-second level alerting for source-to-target data parsing/loading delays.
Enterprise-Grade Data Integrity
- Automatically identifies and handles character set differences between source and target .
- Supports transaction-level consistency with conflict resolution for insert/update/delete operations.
- Enables point-in-time recovery from specified SCN without full database mirroring.
Flexible Deployment
- Supports multiple deployment modes including client installation, agentless deployment, and green software deployment.
- Enables one-to-one, one-to-many, many-to-one, and cascaded synchronization topologies.
- Allows single program deployment to handle concurrent jobs from the same source database.
Advanced Management Capabilities
- Provides web-based HTTPS management interface.
- Supports batch creation/modification of rules and batch node upgrades.
- Offers comprehensive monitoring of synchronization host resources.
Performance Optimization
- Implements high-ratio compression technology with ≥5 compression levels to reduce bandwidth usage.
- Supports dynamic concurrency settings for both full and incremental synchronization.
- Allows precise flow control configurable down to second-level granularity.
Compatibility List for i2Stream
Supported operating systems:
- Windows: Microsoft Windows
- Linux: Linux, Kylin10
- Unix: HP-UX, AIX, Solaris
- Legacy systems: IBM AS/400 (AS400)
Supported databases:
- Oracle: Oracle CDB/PDB (10g, 11g, 12c, 19c)
- Microsoft: SQL Server
- IBM: DB2, AS400DB2, Informix
- Open source databases: MySQL, MariaDB, PostgreSQL, MongoDB, Redis
Big data ecological support:
- Messaging: Apache Kafka (CDH, TDH, CDP, FusionInsight distributions)
- Data Warehousing/Lakes: Apache Hive, Apache HBase, Apache Kudu, HDFS, Teradata
Cross-Environment Capabilities:
- Heterogeneous Synchronization: Source and target can run different OS/database versions
- Hybrid Cloud Support: Bidirectional sync between on-premises and cloud platforms
FAQs of Real-Time Database Replication
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