What's New

1

Proxy Cluster and read/write splitting types available in DCS Redis 6.0

Proxy Cluster and read/write splitting instances are available in basic edition DCS Redis 6.0.

Commercial use

Redis 6.0 Instance Specifications

2

Allowing users to upgrade the minor version and proxy version of a DCS Redis instance

Perform this operation on the console after the whitelist is enabled.

Commercial use

Viewing and Modifying Basic Settings of a DCS Instance

3

Directly changing a Redis instance from the master/standby to the read/write splitting type

Available for DCS Redis 4.0/5.0/6.0.

Commercial use

Modifying DCS Instance Specifications

1

Enabling public access to Redis

Public access can be enabled using Elastic Load Balance (ELB) for single-node, master/standby, read/write splitting, and Proxy Cluster DCS Redis 4.0 and later instances.

Commercial use

Enabling Public Access to Redis and Obtaining the Access Addresses

1

Adjusting Redis instance bandwidth

Bandwidth can be separately purchased for DCS Redis 4.0 and later instances.

Commercial use

Adjusting DCS Instance Bandwidth

2

Stopping a Redis instance

DCS Redis 4.0 and later instances support instance stop. When an instance is stopped, data reading or writing is stopped so that the instance cannot be modified, configured, backed up, or migrated. You can neither change the password nor analyze the cache.

Commercial use

Starting or Stopping a DCS Instance

1

Vertical expansion of Proxy Cluster instances

You can now increase the total memory of a Proxy Cluster instance without having to add shards. This makes capacity expansion more cost-effective.

Commercial use

Can I Expand a Single Shard of a Cluster Instance (Scale-Up)?

1

Enabling multi-AZ for a Cluster instance

By enabling multi-AZ for a single-AZ cluster instance, you can deploy the instance in two AZs for DR.

Commercial use

Enabling Multi-AZ for a Cluster Instance

1

Redis Cluster DCS Redis 6.0 basic edition instances

DCS for Redis 6.0 basic edition is now available in the Redis Cluster type.

Commercial use

Redis 6.0 Instance Specifications

1

Persistence only on replicas of master/standby and cluster instances

Without writing and rewriting AOF on the master node, persistence only on replicas improves performance.

Commercial use

Can I Enable Persistence Only on Replicas and Not on Masters?

1

Managing sessions

You can view the clients connected to an instance and disconnect them. This feature is not available in all regions.

Commercial use

Managing Sessions

1

DCS for Redis 6.0 basic edition

Single-node and master/standby DCS Redis 6.0 basic instances are available for commercial use.

Commercial use

Redis 6.0 Instance Specifications

2

Alarms configuration by resource group

Resources can be grouped into instances, Redis Server nodes, and proxy nodes, and managed by group, making O&M significant simpler and more efficient.

Commercial use

Configuring an Alarm Rule for a Resource Group

1

DCS for Redis 6.0 professional edition

DCS for Redis 6.0 professional (performance) and professional (storage) editions are available for commercial use in the CN North-Beijing4 region.

Commercial use

Redis 6.0 Instance Specifications

1

Visualized operations for changing instance specification

The console displays the process, progress, remaining time of instance specification changes.

Commercial use

Modifying Specifications

1

Critical operation protection for backup file download

Downloading backup files is a critical operation that can be protected. This improves your data security.

Commercial use

Downloading an RDB or AOF Backup File

2

New metric: Average CPU Usage

Both the maximum and the average CPU usage during a monitoring period is measured.

Commercial use

DCS Metrics

1

Applying instance changes during maintenance window

You can apply instance changes during the maintenance window to avoid service impacts.

Commercial use

Modifying Specifications

2

Cache analysis results downloadable

Big key and hot key analysis results can be downloaded on the console.

Commercial use

Analyzing Big Keys and Hot Keys

3

Lettuce 6.x supported for Proxy Cluster instances

You can now use Lettuce 6.x to connect to a Proxy Cluster instance.

Commercial use

Lettuce

1

"Community edition" renamed "basic edition"

The edition name change does not affect product specifications and usage.

Commercial use

Redis 6.0 Instance Specifications

1

Specification modification with a few clicks

The instance type of a DCS Redis 4.0 or 5.0 instance can be changed for service reliability without affecting services.

Commercial use

Modifying Specifications

1

Optimized multi-DB configuration

You can now buy a Proxy Cluster DCS Redis instance with multiple databases.

Commercial use

How Do I Buy a Multi-DB Proxy Cluster Instance?

2

Optimized capacity expansion of cluster shards

In the past, the memory and number of shards must both be increased. Now, shards can be added without changing the memory.

Commercial use

How Do I Add Shards to a Cluster DCS Redis Instance Without Changing the Memory?

1

OBT of the professional (performance) edition

The professional (performance) edition of DCS for Redis is available for OBT. It delivers 500,000 QPS.

Open beta testing

Redis 6.0 Instance Specifications (OBT)

2

OBT of the professional (storage) edition

The professional (storage) edition of DCS for Redis is available for OBT. It delivers high-performance access to hot data at 50% lower costs.

Open beta testing

Redis 6.0 Instance Specifications (OBT)

1

Displaying the IP address of the migration ECS used for online migration

You can view and add the IP address of the migration ECS to the IP whitelist.

Commercial use

Online Migration

1

IP switching

Currently, you cannot change the instance type when using the specification modification. To modify instance specifications while changing the instance type, you can perform IP switching after data migration. By switching IP addresses, you can also change the AZ and CPU architecture used by an instance.

Commercial use

Switching DCS Instance IP Addresses

2

Custom frequency for expired key scans

You can customize expired key scans, and schedule routine tasks to off-peak hours. This feature enhances the robustness of both user and Redis services.

Commercial use

Scanning Expired Keys

3

Multi-DB supported for Proxy Cluster DCS Redis 4.0/5.0 instances

You can now enable multi-DB for a Proxy Cluster DCS Redis 4.0/5.0 instance to isolate data by database. This feature facilitates migration of Internet applications.

Commercial use

What Are the Constraints on Implementing Multi-DB on a Proxy Cluster Instance?

1

Monitoring connection usage

You can now monitor node-level connection usage of cluster instances during routine O&M and monitoring to improve fault locating and demarcation efficiency.

Commercial use

DCS Metrics

1

Parameter templates

You can create custom parameter templates for different cache engine versions and instance types based on service requirements.

This function is available only in certain regions.

Commercial use

Parameter Templates

1

Availability in more regions

DCS for Redis 4.0 and 5.0 (excluding the Proxy Cluster type) are available in LA-Mexico City1, LA-Santiago, and LA-Sao Paulo1 regions.

Commercial use

Redis 4.0 and 5.0 Instance Specifications

2

Online scale-in

Redis Clusters can be scaled in online to reduce resource consumption during off-peak hours, greatly reducing costs.

Commercial use

Modifying Specifications

1

Periodically deleting expired keys

The entire Redis keyspace can be scanned for expired keys, improving memory efficiency and reducing costs.

Commercial use

Scanning Expired Keys

1

Discontinuation of single-node and master/standby DCS Redis 3.0 instances

In major regions, you are advised to use Redis 4.0 or 5.0 for single-node and master/standby instances.

Discontinued

Comparing Redis Versions

2

Read/write splitting DCS Redis instances

Proxy-based read/write splitting instances are provided for high-concurrency scenarios where there are more read requests than write requests. A maximum of one master and five replicas, and a total of more than 500,000 QPS are supported.

Open beta testing

Read/Write Splitting

1

Commercial use of Proxy Clusters DCS Redis 4.0 and 5.0 instances

DCS for Redis 4.0 and 5.0 supports the Proxy Cluster instance type.

Commercial use

Redis Cluster

Redis 4.0 and 5.0 Instance Specifications

1

Removal of support for DCS for Memcached

DCS for Memcached is about to become unavailable and is no longer sold in some regions. You can use DCS for Redis 4.0 or 5.0 instead.

Discontinued

DCS Instance Specifications

1

Alarm rules for critical metrics

The User Guide describes the alarm policies to configure for DCS Redis instances, DCS Memcached instances, and Redis Server.

Commercial use

Configuring Alarm Rules for Critical Metrics

1

Redis slow log

Redis uses slow logs to record queries that exceed a specified execution time. You can view the slow logs on the DCS console to identify performance issues.

Commercial use

Viewing Redis Slow Queries

1

Troubleshooting guide

The documentation provides guides on troubleshooting Redis connection issues, 100% CPU usage of Redis instances, and Jedis connection pool error.

Commercial use

Troubleshooting

1

New solution for public access to DCS Redis 4.0 and 5.0 instances

Learn how to use Nginx for public access to DCS Redis 4.0 or 5.0 instances by following the instructions in Best Practices.

Commercial use

Using Nginx for Public Access to Single-node or Master/Standby DCS Redis 4.0 or 5.0 Instances

2

x86 architecture for Redis 4.0 and 5.0

You can opt for the x86 architecture when creating a DCS Redis 4.0 or 5.0 instance.

Commercial use

Buying a DCS Redis Instance

3

Big key analysis and hot key analysis

By performing big key analysis and hot key analysis on the console, you will have a picture of keys that occupy a large space and the most frequently accessed keys.

Commercial use

Analyzing Big Keys and Hot Keys

1

Online migration by using the console

If the source and destination Redis instances can communicate with each other and the SYNC and PSYNC commands are enabled for the source Redis instance, you can migrate data from self-built Redis or Redis instances hosted by other cloud vendors to HUAWEI CLOUD DCS.

Commercial use

Migrating Data Online

1

Migrating data by importing backup data on the console

If the source and destination Redis instances cannot communicate with each other, you can migrate data from self-built Redis or Redis instances hosted by other cloud vendors to HUAWEI CLOUD DCS by importing backup files.

Commercial use

Importing Backup Files

1

Kunpeng 920 for Redis 4.0 and 5.0

Kunpeng 920 is supported by DCS for Redis 4.0 and 5.0.

Commercial use

Buying a DCS Redis Instance

1

Redis 4.0 and 5.0 cluster capacity expansion

You can expand the capacity of DCS Redis 4.0 and 5.0 instances on the Modify Specifications page.

Commercial use

Modifying Specifications

1

Commercial use of Kunpeng Redis

Kunpeng Redis is commercially released, reducing costs by 30%.

Commercial use

Buying a DCS Redis Instance