What's New
The tables below describe the functions released in each Distributed Cache Service version and corresponding documentation updates. New features will be successively launched in each region.
October 2024
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
|
|
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 |
August 2024
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
April 2024
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Adjusting Redis instance bandwidth |
Bandwidth can be separately purchased for DCS Redis 4.0 and later instances. |
Commercial use |
|
|
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 |
October 2023
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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)? |
June 2023
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
March 2023
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
January 2023
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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? |
December 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
November 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
September 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
August 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Visualized operations for changing instance specification |
The console displays the process, progress, remaining time of instance specification changes. |
Commercial use |
June 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
2 |
New metric: Average CPU Usage |
Both the maximum and the average CPU usage during a monitoring period is measured. |
Commercial use |
May 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Applying instance changes during maintenance window |
You can apply instance changes during the maintenance window to avoid service impacts. |
Commercial use |
|
|
2 |
Cache analysis results downloadable |
Big key and hot key analysis results can be downloaded on the console. |
Commercial use |
|
|
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 |
April 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
"Community edition" renamed "basic edition" |
The edition name change does not affect product specifications and usage. |
Commercial use |
March 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
February 2022
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Optimized multi-DB configuration |
You can now buy a Proxy Cluster DCS Redis instance with multiple databases. |
Commercial use |
|
|
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? |
December 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
October 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
August 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
|
|
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? |
July 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
June 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
May 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
2 |
Online scale-in |
Redis Clusters can be scaled in online to reduce resource consumption during off-peak hours, greatly reducing costs. |
Commercial use |
April 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Periodically deleting expired keys |
The entire Redis keyspace can be scanned for expired keys, improving memory efficiency and reducing costs. |
Commercial use |
March 2021
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
December 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
November 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
September 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
August 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
July 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
May 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
|
|
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 |
March 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
January 2020
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
December 2019
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
September 2019
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
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 |
March 2019
|
No. |
Feature |
Description |
Phase |
Document |
|---|---|---|---|---|
|
1 |
Commercial use of Kunpeng Redis |
Kunpeng Redis is commercially released, reducing costs by 30%. |
Commercial use |
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