RESP 与 Redis Enterprise 的兼容性

Redis Enterprise 支持 RESP2 和 RESP3。

Redis 企业软件

RESP（Redis 序列化协议）是客户端用于与 Redis 数据库通信的协议。有关更多信息，请参阅 RESP 协议规范。

支持的 RESP 版本

  • 所有 Redis Enterprise 版本都支持 RESP2。

  • Redis Enterprise 7.2 及更高版本支持 RESP3。

注意：
支持 RESP3 的 Redis Enterprise 版本将继续支持 RESP2。

为数据库启用 RESP3

要将 RESP3 与 Redis Enterprise Software 数据库一起使用：

  1. 将 Redis 服务器升级到 7.2 或更高版本。

    对于 Active-Active 和 Replica Of databases：

    1. 将所有参与的集群升级到 Redis Enterprise 版本 7.2.x 或更高版本。

    2. 将所有数据库升级到版本 7.x 或更高版本。

  2. 为数据库启用 RESP3 支持 （enabled默认情况下）：

Deactivate RESP3 for a database

To deactivate RESP3 support for a database:

When RESP3 is deactivated, connected clients that use RESP3 are disconnected from the database.

Note:
You cannot use sharded pub/sub if you deactivate RESP3 support. When RESP3 is enabled, you can use sharded pub/sub with either RESP2 or RESP3.

Change default RESP3 option

The cluster-wide option resp3_default determines the default value of the resp3 option, which enables or deactivates RESP3 for a database, upon upgrading a database to version 7.2. resp3_default is set to enabled by default.

To change resp3_default to disabled, use one of the following methods:

  • Cluster Manager UI:

    1. On the Databases screen, select Toggle actions button to open a list of additional actions.

    2. Select Upgrade configuration.

    3. For RESP3 support, select Disable.

    4. Click Save.

  • rladmin tune cluster

    rladmin tune cluster resp3_default disabled

  • Update cluster policy REST API request:

    PUT /v1/cluster/policy 
{ "resp3_default": false }

Client prerequisites for Redis 7.2 upgrade

The Redis clients Go-Redis version 9 and Lettuce versions 6 and later use RESP3 by default. If you use either client to run Redis Stack commands, you should set the client's protocol version to RESP2 before upgrading your database to Redis version 7.2 to prevent potential application issues due to RESP3 breaking changes.

Go-Redis

For applications using Go-Redis v9.0.5 or later, set the protocol version to RESP2:

client := redis.NewClient(&redis.Options{
    Addr:     "<database_endpoint>",
    Protocol: 2, // Pin the protocol version
})

Lettuce

To set the protocol version to RESP2 with Lettuce v6 or later:

import io.lettuce.core.*;
import io.lettuce.core.api.*;
import io.lettuce.core.protocol.ProtocolVersion;

// ...
RedisClient client = RedisClient.create("<database_endpoint>");
client.setOptions(ClientOptions.builder()
        .protocolVersion(ProtocolVersion.RESP2) // Pin the protocol version 	
        .build());
// ...

If you are using LettuceMod, you need to upgrade to v3.6.0.

RATE THIS PAGE
Back to top ↑