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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
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
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
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 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
Configuring DCS Instance Parameter Templates Viewing a Parameter Template of a DCS Instance Creating a Custom Parameter Template for a DCS Instance Parent Topic: Managing Instances
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
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
Comparing DCS Redis Instance Types Table 1 describes the differences between different Redis instance types in terms of features and commands. DCS for Redis 3.0 is no longer provided. You can use DCS for Redis 5.0 or later. Table 1 Differences between DCS instance types Item Single-Node
Comparing DCS and Open-Source Cache Services DCS supports single-node, master/standby, and cluster instances, ensuring high read/write performance and fast data access. It also supports various instance management operations to facilitate your O&M. With DCS, you only need to focus
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
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
Migrating Data from Self-Hosted Redis to DCS Migrating Self-Built Redis Online Self-Hosted Redis Migration with Backup Files Self-Hosted Redis Migration with redis-cli (AOF) Self-Hosted Redis Migration with redis-cli (RDB) Self-Hosted Redis Cluster Migration with redis-shake (Online
Backup Import Between DCS Redis Instances You can migrate data between DCS instances by importing backup files. Notes and Constraints To migrate to an instance with SSL enabled, disable the SSL setting first. For details, see Transmitting DCS Redis Data with Encryption Using SSL.
Viewing and Modifying Basic Settings of a DCS Instance On the DCS console, you can view and modify DCS instance basic information. Viewing and Modifying Basic Information of a DCS Instance Log in to the DCS console. Click in the upper left corner of the management console and select
Viewing Slow Queries of a DCS Redis Instance Redis logs queries that exceed a specified execution time. You can view the slow logs on the DCS console to identify performance issues. Configure slow queries with the following parameters: slowlog-log-slower-than: The maximum time allowed
