openGauss is a relational database management system designed for enterprise transactional workloads, particularly applications requiring high concurrency, strong security and reliable data processing.
The database incorporates optimisations for multicore processors, memory management and transaction execution. Its architecture includes techniques for reducing contention between concurrent operations and improving performance on systems with non-uniform memory access (NUMA) architectures.
openGauss originated from Huawei’s database technology and provides facilities for high availability, transaction recovery and database administration. It also incorporates intelligent management capabilities intended to help administrators identify inefficient queries and optimise database configurations.
This is free and open source software.
Key Features
- Relational database management with SQL queries, transactions and concurrency control.
- Multicore optimisations reduce lock contention and improve transaction throughput.
- NUMA-aware memory allocation helps reduce remote memory access on multiprocessor systems.
- Memory-Optimised Table (MOT) engine supports low-latency transactional operations using in-memory data and indexes.
- Parallel recovery processes transaction logs concurrently to accelerate recovery operations.
- Primary-standby replication and failover capabilities support high availability.
- SQL bypass optimisations reduce execution overhead for suitable database operations.
- Authentication, access controls, password policies, encrypted connections and auditing protect database access.
- SQL diagnostics assist with identifying queries that require performance improvements.
- Intelligent parameter tuning uses collected performance information to help optimise database configuration.
- SQL execution prediction estimates query execution times using historical performance information.
Website: github.com/opengauss-mirror/openGauss-server
Support:
Developer: openGauss community
License: Mulan Permissive Software License v2.0
openGauss is written in C++. Learn C++ with our recommended free books and free tutorials.
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