Product Advantages
High Availability
The default setting is high availability to avoid the impact of failures such as downtime on the cloud memory service. When the master node fails, the replica node will be quickly promoted to the new master node to continue providing services.
Master-replica Redis provides cross-availability zone high availability function. Users can turn on the "cross-availability zone high availability" function according to business needs, thereby improving service availability and achieving cross-machine room level disaster recovery. However, since Redis uses asynchronous replication technology, when the business pressure is high, the replica node may lag behind the master node by a small amount of data, and the switch between the master and replica nodes may cause a small amount of data inconsistency.
Rich Architecture
Redis provides two architectures: master-replica and distributed.
Master-replica architecture: During system operation, the backup node (Replica) synchronizes the master node (Master) data in real time. When the master node fails, the system automatically switches at the second level, and the backup node takes over the business. The whole process is automatic and has no impact on the business. The master-replica architecture ensures that the service has high availability.
Distributed architecture: The distributed instance adopts a distributed cluster architecture, and each node adopts a high-availability master-replica architecture with one master and one replica, which can perform automatic disaster recovery switching and fault migration. Different capacity configurations of the distributed version can be applied to businesses under different pressures, and the performance of distributed Redis can be expanded as needed.
Comprehensive Monitoring
Provide users with various types of monitoring, including usage, number of connections, QPS, number of Keys, and other monitoring.
Online Expansion and Contraction
Users can directly visualize the expansion of Redis on the console. The whole process is transparent to users, effectively meeting the needs of business growth. The master-replica version of Redis supports expansion and contraction. Different capacity configurations of the distributed version can be applied to businesses under different pressures, and the performance of distributed Redis can be expanded as needed.
Low Operation and Maintenance Cost
Effectively reduce operation and maintenance costs. Users create and upgrade required instances according to business needs, without the need to purchase high-cost hardware at the beginning of the business, effectively reducing initial capital investment and waste of idle resources; convenient and fast deployment management can reduce the operation and maintenance costs of deployment and maintenance.
Data Security
Data is stored persistently, using a hybrid storage method of memory + hard disk, which meets the requirements of data persistence while providing high-speed data read and write capabilities.
Backup and recovery, automatic backup of data every day, support manual backup, strong data disaster recovery capability, free storage of 3 copies, support one-click recovery from backup and backup download, effectively prevent data misoperation, and minimize possible business losses.
The master-replica version supports setting password access authentication to ensure safe and reliable access.
