Help Center> Distributed Cache Service> Service Overview> Cache Engine Differences> Comparing Redis Versions
Updated on 2024-06-28 GMT+08:00
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Comparing Redis Versions

When creating a DCS Redis instance, you can select the cache engine version and the instance type.

  • DCS for Redis 3.0 is no longer provided. You can use DCS for Redis 4.0, 5.0, or 6.0 instead.
  • The underlying architectures vary by Redis version. Once a Redis version is chosen, it cannot be changed. For example, you cannot upgrade a DCS Redis 4.0 instance to Redis 5.0 or 6.0. If you require a higher Redis version, create a new instance that meets your requirements and then migrate data from the old instance to the new one.
  • Version

    DCS supports Redis 3.0/4.0/5.0/6.0. Table 1 describes the differences between these versions. For more information, see New Features of DCS for Redis 4.0, New Features of DCS for Redis 5.0, and New Features of DCS for Redis 6.0.

    Table 1 Differences between Redis versions

    Feature

    Redis 3.0 (Discontinued)

    Redis 4.0 & Redis 5.0

    Redis 6.0

    Open-source compatibility

    Redis 3.0.7

    Redis 4.0.14 and 5.0.9, respectively

    Basic edition: Redis 6.2.7

    Professional edition: Redis 6

    Instance deployment mode

    Based on VMs

    Containerized based on physical servers

    Basic edition: Containerized based on physical servers

    Professional edition: Based on VMs

    Time required for creating an instance

    3–15 minutes

    Cluster instance: 10–30 minutes

    8 seconds

    Basic edition: 8s

    Professional edition: 5 to 15 minutes

    QPS

    100,000 QPS per node

    For QPS of each instance specification, see Redis 3.0 Instance Specifications (Discontinued).

    100,000 QPS per node

    For QPS of each instance specification, see Redis 4.0 and 5.0 Instance Specifications.

    Basic edition: 100,000 QPS per node

    Professional edition: 400,000 QPS per node

    For QPS of each instance specification, see Redis 6.0 Instance Specifications.

    Public network access

    Supported

    Not supported

    Not supported

    Domain name connection

    Supported in VPC

    Supported in VPC

    Supported in VPC

    Visualized data management

    Not supported

    Provides Web CLI for Redis access and data management.

    Provides Web CLI for Redis access and data management.

    Instance type

    Single-node, master/standby, and Proxy Cluster

    Single-node, master/standby, read/write splitting, Proxy Cluster, and Redis Cluster

    Basic edition: single-node, master/standby, and Redis Cluster

    Professional edition: master/standby

    Capacity expansion/reduction

    Online capacity expansion and reduction

    Online capacity expansion and reduction

    Online capacity expansion and reduction

    Backup and restoration

    Supported for master/standby and Proxy Cluster instances

    Supported for master/standby, Proxy Cluster, Redis Cluster, and read/write splitting instances

    Supported for master/standby and Redis Cluster instances
  • Instance type

    DCS provides single-node, master/standby, Proxy Cluster, Redis Cluster, and read/write splitting instance types. For details about their architectures and application scenarios, see DCS Instance Types.

Parent topic: Cache Engine Differences