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Network Conditions for Accessing DCS Redis You can access a DCS instance through any Redis client. For details about Redis clients, see the Redis official website. There are different constraints when a client connects to Redis in certain ways: Accessing a Redis instance on a client
Renaming Critical Commands for DCS Instances Certain high-risk commands can be modified for DCS Redis instances. Once a command is modified, it is only known to the modifier. Running the original command by other users is blocked. Notes and Constraints Only DCS Redis 4.0 and later
Backing up DCS Instances Manually You can manually back up data in DCS instances in a timely manner. This section describes how to manually back up data in master/standby instances using the DCS console. Notes and Constraints A total of 24 latest backups (automatic and manual) can
Migrating Data Between DCS Instances Online Migration Between Instances Backup Import Between DCS Redis Instances Parent Topic: Migrating Instance Data
Viewing a Parameter Template of a DCS Instance System default parameter templates vary by Redis version and instance type. A system default parameter template contains default instance parameter configurations. Parameter templates can be customized for parameter configurations, and
Downloading DCS Instance Backup Files Automatically backed up data can be retained for a maximum of 7 days. Manually backed up data is not free of charge and takes space in OBS. Due to these limitations, you are advised to download the RDB or AOF backup files and permanently save
Managing DCS Instance Shards and Replicas This section describes how to query the shards and replicas of a master/standby, cluster, or read/write splitting DCS Redis instance, and how to manually promote a replica to master. By default, a master/standby or read/write splitting instance
Configuring DCS Redis ACL Users If you need multiple accounts for a Redis instance, use ACL to create users. ACL users support read-only or read/write permissions. Notes and Constraints By default, this function is supported by DCS Redis 4.0/5.0 instances. Temporarily, this function
Configuring DCS Redis Access Whitelist The following describes how to manage whitelists of a Redis instance to allow access only from whitelisted IP addresses. Enabling whitelists only allows instance access from IP addresses within them, and only applies to new connections. If no
Backing up DCS Instances Automatically On the DCS console, you can configure an automatic backup policy. The system then backs up data in your instances according to the backup policy. By default, automatic backup is disabled. To enable it, perform the operations described in this
Using SSH Tunneling for Public Access to DCS Overview Currently, Huawei Cloud DCS Redis 4.0 and later cannot be bound with elastic IP addresses (EIPs) and cannot be accessed over public networks directly. This section describes how to create an SSH tunnel as a proxy to connect your
Commands Supported and Disabled by DCS for Redis 4.0 DCS for Redis 4.0 is developed based on Redis 4.0.14 and is compatible with open-source protocols and commands. This section describes DCS for Redis 4.0's compatibility with Redis commands, including supported and disabled commands
Commands Supported and Disabled by DCS for Redis 5.0 DCS for Redis 5.0 is developed based on Redis 5.0.9 and is compatible with open-source protocols and commands. This section describes DCS for Redis 5.0's compatibility with Redis commands, including supported and disabled commands
Commands Supported and Disabled by DCS for Redis 6.0 Huawei Cloud DCS for Redis 6.0 is fully compatible with open-source Redis 6. This section describes DCS for Redis 6.0's compatibility with KeyDB commands, including supported and disabled commands. DCS Redis instances support most
Infographics for Comparing DCS for Redis with Open-Source Redis
What Are the CPU Specifications of DCS Instances? Redis Basic Edition When using DCS for Redis basic edition, you only need to pay attention to critical indicators such as QPS, bandwidth, and memory. You do not need to be concerned about CPU specifications. DCS for Redis basic edition
Does DCS Support Public Access? Redis 3.0 Currently, public access is supported only by password-protected DCS Redis 3.0 instances. You can enable or disable SSL for public access. You are advised to download a CA certificate in advance and use it to verify the certificate of a DCS
Does DCS Support Cross-VPC Access? Cross-VPC means the client and the instance are not in the same VPC. The following assumes that public access is disabled for a DCS instance. Generally, VPCs are isolated from each other and an ECS cannot access a DCS instance that belongs to a different
Does DCS for Redis Support Multi-DB? DCS's support for multiple databases (multi-DB) is as follows: Single-node, read/write splitting, and master/standby DCS Redis instances: Multi-DB is supported. By default, there are 256 databases, numbering 0–255. The default database is DB0.
Does DCS for Redis Support Pipelining? Yes. For Redis Cluster instances, ensure that all commands in a pipeline are executed on the same shard. Parent topic: Redis Commands
