ApsaraDB for Redis is a database service that is compatible with the open source Redis protocol and supports a hybrid of memory and disks for storage. ApsaraDB for Redis provides the hot standby architecture and the cluster architecture, and can scale to meet requirements for high-throughput and low-latency operations.
- ApsaraDB for Redis is a fully-managed cloud database service provided by Alibaba Cloud. The hardware and data of the service are deployed in the cloud. Alibaba Cloud manages infrastructure planning, network security, and system maintenance. This allows you to focus on business development.
- ApsaraDB for Redis supports various data types, such as strings, lists, sets, sorted sets, hashes, and streams. The service also provides advanced features, such as transactions, message subscription, and message publishing.
- ApsaraDB for Redis Enhanced Edition (Tair) is a key-value pair cloud cache service that is developed based on ApsaraDB for Redis Community Edition. ApsaraDB for Redis Enhanced Edition (Tair) provides the following series of instances: performance-enhanced instances, persistent memory-optimized instances, storage-optimized instances, and hybrid-storage instances.
For more information, see Comparison between ApsaraDB for Redis and self-managed Redis and Scenarios.
Purchase an instance
|ApsaraDB for Redis Community Edition||ApsaraDB for Redis Community Edition is compatible with the data cache service of open source Redis engines. It supports master-replica instances, cluster instances, and read/write splitting instances.|
|ApsaraDB for Redis Enhanced Edition (Tair)||
ApsaraDB for Redis Enhanced Edition (Tair) is developed based on ApsaraDB for Redis Community Edition. ApsaraDB for Redis Enhanced Edition (Tair) provides various series of instances based on storage media such as DRAM, NVM, and ESSDs to meet your requirements for low-latency access, persistence, and reduced overall costs. ApsaraDB for Redis Enhanced Edition (Tair) provides you with higher performance, more data structures, and more flexible storage methods. This helps you meet business requirements in different scenarios.
ApsaraDB for Redis supports multiple deployment architectures that are applicable to different scenarios.
|Standard master-replica instances||The system synchronizes data between the master node and replica node in real time. If the master node fails, the system automatically fails over to the replica node and restores services in seconds. This process is automatic and does not affect your business. The master-replica architecture ensures high availability of system services.|
|Cluster master-replica instances||Cluster instances use a distributed architecture. Each shard works as a master-replica high-availability (HA) node and provides automatic disaster recovery and failover. Multiple cluster specifications are available. You can determine the specifications based on your business requirements. The cluster architecture supports the following connection modes:
|Read/write splitting instances||A read/write splitting instance uses a master-replica architecture to provide high availability. Read replicas are attached to the master node to facilitate data replication and implement linear scaling of read performance. Read replicas can alleviate performance issues caused by hotkeys. Read/write splitting instances are suitable for business scenarios that require high read/write ratios. Read/write splitting instances are classified into non-cluster instances and cluster instances.
ApsaraDB for Redis Community Edition and Enhanced Edition (Tair) provide different instance specifications for each architecture. For more information, see Overview.