Technical Characteristics

Compared with other databases, openGauss features multiple storage modes, NUMA-based kernel structure, and high availability.

• Multiple storage modes

  • Row-store, supporting frequent service data updates and the fusion engine (Ustore) and the original Astore
  • Column-store, supporting service data appending and analysis

• NUMA-based kernel structure

  • Partitions key data structures to reduce data access conflicts.
  • Provides NUMA-based key data structure to reduce the data structure access latency.
  • Binds cores to key service threads to prevent inter-core thread drift.

• High availability

  • Supports multiple deployment modes, such as primary/standby synchronization and primary/standby asynchronization.
  • Supports data page cyclic redundancy check (CRC), and automatically restores damaged data pages through the standby node.

• High security

  Provides fully-encrypted database capabilities and supports security features such as fully-encrypted equality query, access control, encryption authentication, database audit, and dynamic data masking to provide comprehensive end-to-end data security protection.