PolarDB:Console release notes

Feature

Description

Release date

References

Enable I/O burst for ESSD AutoPL disks

The I/O burst feature is available for ESSD AutoPL disks of PolarDB for MySQL.

2024-11-04

Enable I/O burst for ESSD AutoPL disks

In-Memory Column Index (IMCI)

You can add read-only column store nodes on the buy page of PolarDB for MySQL.

2024-11-15

Add a read-only column store node for IMCI

Feature

Description

Release date

References

Temporarily add nodes

The feature of temporarily adding nodes is available for PolarDB for MySQL.

2024-10-14

Temporarily add nodes

Automatic query acceleration (AutoIndex)

The automatic IMCI-based query acceleration feature is available for PolarDB for MySQL.

2024-10-21

Automatic query acceleration (AutoIndex)

Change the performance of an ESSD

The feature of changing the specifications of an ESSD is available for PolarDB for MySQL.

2024-10-28

Change the performance of an ESSD

Feature

Description

Release date

References

Serverless clusters support IMCI

Serverless clusters support the In-Memory Column Index (IMCI) feature.

2024-09-27

Set the scaling policy for a serverless cluster

Feature

Description

Release date

References

Connect a PolarDB for MySQL cluster to a self-managed AD domain

PolarDB for MySQL clusters can be connected to an AD domain based on Kerberos authentication.

2024-08-05

Connect a PolarDB for MySQL cluster to a self-managed AD domain

Parallel query for cold data

PolarDB for MySQL adds a method to perform parallel queries for cold data using the ePQ (elastic parallel query) technology.

2024-08-19

Parallel query for cold data

OSS_FILE_FILTER query acceleration

PolarDB for MySQL supports query acceleration for cold data in OSS.

2024-08-19

OSS_FILE_FILTER query acceleration

Create a global domain name

PolarDB for MySQL supports the creation of global domain names.

2024-08-26

Create a global domain name

Feature

Description

Release date

References

Disaster recovery drill

The disaster recovery drill feature of PolarDB for MySQL supports fault drills for PolarDB for MySQL clusters.

2024-07-24

Disaster recovery drills

Create custom temporary tables

PolarDB for MySQL supports the creation of temporary tables on read-only nodes.

2024-07-24

Create custom temporary tables on a read-only node

Change to the maximum storage capacity of Enterprise Edition compute nodes

The maximum storage capacity for PolarDB for MySQL Enterprise Edition compute node specifications has been updated.

2024-07-30

Enterprise Edition compute node specifications

Feature

Description

Release date

References

Tenant management and resource isolation

The multi-tenant mode of PolarDB for MySQL lets multiple tenants share computing and storage resources within a single cluster. It ensures data and resource isolation for each tenant. Tenants can access only their own data, which prevents resource contention and ensures stable operations.

2024-06-17

Tenant management and resource isolation

Feature

Description

Release date

References

Serverless

In serverless clusters, the maximum number of read-only nodes that can be added is increased from 8 to 15. The maximum values for Minimum Number of Read-only Nodes and Maximum Number of Read-only Nodes in the serverless configuration are increased to 15.

2024-05-09

Create a serverless cluster

One-click upgrade

You can upgrade an RDS for MySQL instance to a PolarDB for MySQL serverless cluster with a single click.

2024-05-10

One-click upgrade from RDS for MySQL to PolarDB for MySQL

Major version upgrade

You can upgrade a PolarDB for MySQL cluster to a higher major version of a PolarDB for MySQL serverless cluster.

2024-05-10

Major version upgrade

Feature

Description

Release date

References

Database and table restoration

The database and table restoration feature is optimized. After the optimization, the time required to restore data to the original cluster is reduced by 30%. Data can be automatically synchronized to hot standby clusters and secondary clusters in a Global Database Network (GDN), which significantly reduces the restoration time.

2024-04-12

• Overall process and estimated time

• Method 1: Restore from a backup set

• Method 2: Restore to a point in time

Download backup files

The CSV-with-header format is added for downloading backup files. You can restore the downloaded backup files to a self-managed MySQL database.

2024-04-17

• Download backup files

• Restore data from a backup file to a self-managed MySQL database

Convert storage billing methods

For PolarDB Enterprise Edition clusters whose computing resources use the subscription billing method, you can convert the billing method for storage resources between Pay-as-you-go (by capacity) and Subscription (by space).

2024-04-26

Convert the storage billing method

Feature

Description

Release date

References

Cold data archiving

The menu entry for enabling cold data archiving is changed.

2024-03-07

Enable cold data archiving

Task management

To help users manage tasks for PolarDB clusters, monitor the progress of long-running tasks such as cluster backup and restoration, and improve cluster O&M efficiency, PolarDB lets you view the progress of current tasks and the details of historical tasks in the task list.

2024-03-15

Task Hub

Feature

Description

Release date

References

Migration evaluation

To ensure a smooth migration process and a better migration experience, PolarDB provides the migration evaluation feature. Before you start a one-click upgrade from RDS for MySQL to PolarDB for MySQL, you can pre-check prerequisites such as instance status, migration task dependencies, and source instance properties. This lets you identify and handle preconditions that may affect the migration progress in advance, reducing processing and resource costs during the migration.

2024-02-21

Migration evaluation

Upgrade evaluation

To ensure a smooth upgrade process and a better upgrade experience, PolarDB provides the upgrade evaluation feature for major version upgrades. Before you start an upgrade, you can pre-check prerequisites such as cluster status, upgrade task dependencies, and source cluster properties. This lets you identify and handle preconditions that may affect the upgrade progress in advance, reducing processing and resource costs during the upgrade.

2024-02-21

Upgrade evaluation

Configure a database proxy

The Create Connections On Demand configuration item is added to the Load Balancing Settings.

2024-02-22

Configure a database proxy

One-click upgrade from an RDS for MySQL instance that uses X-Engine to a PolarDB for MySQL cluster

You can upgrade an RDS for MySQL instance that uses the X-Engine storage engine to a PolarDB for MySQL cluster with a single click.

2024-02-29

One-click upgrade from an RDS for MySQL instance that uses X-Engine to a PolarDB for MySQL cluster

Feature

Description

Release date

References

Use RAM to control the configuration of encryption rules

PolarDB for MySQL supports setting access policies in the RAM console for DBAs or developers to restrict them from tampering with encryption rules.

2024-01-08

Use RAM to control the configuration of encryption rules

Configure a database proxy

An option to enable or disable Column Store Node Accepts OLTP Requests is added to the HTAP Optimization configuration item for the cluster endpoint of a PolarDB for MySQL cluster.

2024-01-15

Configure a database proxy

Feature

Description

Release date

References

Change to the retention period in backup and recovery policies

The term Permanent Retention is changed to Long-term Retention in the documentation.

2023-12-26

Notice on changes to the PolarDB backup retention policy

Weight-based dynamic load balancing

PolarDB for MySQL supports configuring endpoint-level weights for each node in a cluster endpoint or custom endpoint. The priority of endpoint-level weights is higher than that of global DB-level weights.

2023-12-28

Configure endpoint-level weights

Feature

Description

Release date

References

Support for downloading backup files

You can download the backup files corresponding to a cluster backup set to your local machine in CSV, SQL, or Parquet format for other purposes, such as:

• Querying data in the backup

• Querying data at a past point in time

• Saving a backup locally

• Downloading a backup for auditing

• Transferring a backup to your OSS

November 24

• Download backup files

• Restore data from a backup file to a self-managed MySQL database

Multi-node parallel execution for In-Memory Column Index

Multi-node parallel execution for In-Memory Column Index uses a group of multiple read-only column store nodes to provide multi-node parallel execution capabilities. This feature is suitable for the following scenarios:

• Expanding CPU and IOPS resources through multi-node parallel scaling to reduce query latency.

• Improving data caching capabilities by having each machine process only a portion of the data, transforming a single-machine scenario that cannot be fully in-memory into a multi-machine, fully in-memory scenario to increase query throughput.

November 6

Use multi-node MPP to accelerate massive data analytics

Support for manually switching the secondary zone

You can manually change the secondary zone of a cluster.

November 1

Manually change a zone

Feature

Description

Release date

References

PolarDB supports database and table restoration for up to 50,000 tables

You can use the database and table restoration feature even when the number of tables (including system tables) in a PolarDB cluster exceeds 50,000.

October 19

Method 1: Restore from a backup set

Method 2: Restore to a point in time

PolarDB supports online switching of VPCs and vSwitches

PolarDB for MySQL Enterprise Edition supports flexible switching of the VPC and vSwitch for endpoints (including the primary endpoint, cluster endpoint, and custom endpoint). This feature lets you migrate the endpoints of a PolarDB cluster to other VPCs and vSwitches.

October 17

Switch VPCs and vSwitches

Feature

Description

Release date

References

Column store nodes support the serverless feature

PolarDB for MySQL supports enabling the serverless feature for read-only column store nodes. You can set a resource scaling range for read-only column store nodes with defined specifications to handle traffic spikes by temporarily scaling up resources. You can also create serverless read-only column store nodes, in which node specifications scale elastically based on the business load to save costs.

September 20

Enable the serverless feature for a read-only column store node for IMCI

Feature

Description

Release date

References

Major version upgrades support intelligent stress testing

Database Autonomy Service (DAS) provides an intelligent stress testing feature. Before you perform a major version upgrade, you can use this feature to simulate your business traffic on a PolarDB instance of the target version. This helps you:

• Verify whether your instance specifications need to be scaled up to handle peak business traffic.

• Analyze the differences in SQL template execution performance between the source and target versions of PolarDB instances.

2023-08-31

Traffic replay and stress testing

New items covered by storage plans

Storage plans can now be used to offset the costs of level-2 backups, log backups, cold data storage, and PL0 disk storage. Some deduction factors are also adjusted.

2023-08-17

Storage plans can be used to deduct the usage of level-2 backups, log backups, cold data storage, and PL0 disk storage, with some deduction factors adjusted

Feature

Description

Release date

References

Price reduction for SQL Explorer and Audit

The new version of SQL Explorer and Audit is supported. Compared to the old version, the new version changes the underlying storage architecture and uses tiered storage for hot and cold data, reducing the cost of using the SQL Explorer and Audit feature by 17% to 83%.

2023-07-24

Notice on price changes (reduction) for SQL Explorer and Audit

Feature

Description

Release date

References

New entry point to enable binary logging

You can click the Enable Binlog button on the Basic Information page of your cluster to enable binary logging.

2023-06-09

Enable binary logging

New feature: Storage compression

The PSL4 storage class for PolarDB clusters adds a storage compression feature. The storage layer compresses data by block, achieving a high compression ratio to reduce storage costs.

2023-06-15

How to enable storage compression

Feature

Description

Release date

References

New feature: Serverless for clusters with defined specifications

You can directly enable the serverless feature on a purchased cluster with defined specifications (a regular cluster).

2023-04-14

Enable the serverless feature for a cluster with defined specifications

Feature

Description

Release date

References

Enhancements to version management

PolarDB for MySQL supports upgrades from lower versions to higher versions.

2023-03-31

Major version upgrade

New feature: Cold data archiving

PolarDB for MySQL supports archiving infrequently used cold data to OSS to reduce data storage costs. You can archive data in CSV or ORC format or create a DLM policy on a read/write node to automatically archive cold data.

2023-03-01

Cold data archiving

Feature

Description

Release date

References

New feature: Enable X-Engine

You can directly enable X-Engine on a purchased PolarDB for MySQL cluster and use the ALTER statement to transfer tables from the InnoDB engine to the X-Engine. This dual-engine (InnoDB and X-Engine) hybrid deployment mode lets you compress and store cold data in the X-Engine, saving up to 70% on storage costs, without affecting the use of the InnoDB engine.

2023-02-06

Enable X-Engine

Feature

Description

Release date

References

New feature: Use DBS for logical backups

PolarDB for MySQL supports logical backups using Data Disaster Recovery.

2023-01-31

Backup method 3: Use Data Disaster Recovery for logical backups

New feature: Connection diagnostics

The connection diagnostics feature provided by PolarDB for MySQL is used to detect whether an ECS instance or IP address can access the database normally.

2023-01-10

Connection diagnostics

Feature

Description

Release date

References

New feature: Advanced monitoring

The advanced monitoring feature of PolarDB for MySQL supports a rich set of performance monitoring metrics, custom charts, and powerful diagnostic capabilities. It can promptly detect events occurring in the database cluster, automatically diagnose them, and provide root cause analysis and recommendations. It also supports manual diagnosis for selected time periods.

2022-12-29

Advanced monitoring

New feature: Performance Insight (New Version)

The quick diagnostics feature of PolarDB for MySQL integrates some features of DAS. It uses `performance_schema` to aggregate SQL information, evaluate the database load, find the root cause of performance issues, and provide optimization suggestions to improve database stability.

2022-12-26

Performance Insight (New Version)

New feature: Serverless cluster

The serverless feature provides real-time elasticity for CPU, memory, storage, and network resources, creating a new form of PolarDB for MySQL with a compute-storage decoupled architecture.

2022-12-23

Serverless

Feature

Description

Release date

References

New feature: Cluster lock

Enabling the cluster lock can effectively prevent cluster release due to operational errors or poor communication among team members.

2022-11-20

Cluster lock

Feature

Description

Release date

References

New feature: Global IP whitelist

You can create custom IP whitelist templates and associate clusters with them. By maintaining a single IP whitelist template, you can dynamically apply it to all associated clusters.

2022-09-26

Set a global IP whitelist template

Feature

Description

Release date

References

New storage class: PSL4 (PolarStore Level 4)

PSL4 is a new storage class launched by PolarDB. It uses Alibaba's self-developed smart-SSD technology to compress and decompress data at the physical SSD level. This lowers the storage price per unit of data while keeping the performance impact manageable.

2022-06-21

How to choose between PSL4 and PSL5

New feature: Cross-region backup

PolarDB has launched a cross-region backup feature that lets you back up data to another region for regulatory compliance or disaster recovery. You can enable the cross-region backup feature by setting a backup policy.

2022-06-17

Cross-region backup

New feature: SQL firewall

The Proxy of PolarDB provides an SQL firewall feature. This feature identifies which SQL statements to allow and which to block by setting blacklist and whitelist rules.

2022-06-13

SQL firewall

Feature

Description

Release date

References

New feature: In-Memory Column Index

In-Memory Column Index (IMCI) is designed for complex queries on large amounts of data in OLAP scenarios. With IMCI, PolarDB for MySQL provides integrated real-time transaction processing and real-time data analytics capabilities, becoming a one-stop HTAP database product solution. A single database system can meet both OLTP and OLAP business needs.

2022-05-27

In-Memory Column Index

Feature

Description

Release date

References

Primary and read-only nodes can be upgraded or downgraded separately

A PolarDB cluster supports upgrading or downgrading the primary node and read-only nodes separately. This means the specifications of read-only nodes can be different from those of the primary node.

2022-04-22

• Manual upgrade or downgrade

• Temporary upgrade

• Add or remove nodes

New feature: Failover with hot standby

After enabling the failover with hot replica feature for a read-only node in a cluster, you can achieve fast switchovers and maintain persistent connections during a primary/secondary failover.

2022-04-13

Failover with hot standby

Feature

Description

Release date

References

Database proxy specifications support upgrades

The upgrade plans for PolarProxy Enterprise Edition specifications are as follows:

• Standard configuration: The number of vCPUs for the Standard Enterprise Edition is 1/6 of the total number of cores of the database nodes in the cluster. The number of vCPUs for the Dedicated Enterprise Edition is 1/4 of the total number of cores of the database nodes in the cluster, rounded up.

• Standard configuration ×2: The number of vCPUs is twice that of the standard configuration.

• Standard configuration ×4: The number of vCPUs is four times that of the standard configuration.

2022-03-10

Upgrade database proxy specifications

Node parameters are configurable

PolarDB clusters provide a configurable node parameter feature, allowing users to configure any node parameter as needed.

2022-03-03

Set cluster and node parameters

Feature

Description

Release date

References

Cluster Edition General-purpose specifications support 32 cores and 128 GB of memory

Cluster Edition General-purpose specifications support 32 cores and 128 GB of memory.

2022-02-18

Enterprise Edition compute node specifications

New edition: Multi-master Cluster (Limitless) Edition

Multi-master Cluster (Limitless) Edition upgrades the architecture from one-write-multiple-read to multiple-write-multiple-read, primarily for high-concurrency read/write application scenarios such as multi-tenancy, gaming, and e-commerce. It supports concurrent writes to different databases on different compute nodes and dynamic scheduling of databases across nodes, with switchovers completed in seconds, greatly enhancing the overall concurrent read/write capability of the cluster.

2022-02-11

Overview of Multi-master Cluster (Limitless) Edition

Feature

Description

Release date

References

Database proxy is upgraded to PolarProxy Enterprise Edition

2021-12-09

PolarProxy Enterprise Edition Overview

New product series: X-Engine

X-Engine is built on the archive database (high compression rate) and uses shared storage to enable single-write and multiple-read operations. A cluster has one read/write primary node and at least one read-only node. The X-Engine multi-node architecture inherits the advantages of the archive database (high compression rate) and provides high availability (HA) for the cluster. If a system failure occurs, an automatic failover between the primary node and a read-only node ensures service availability of at least 99.99%.

2021-12-01

X-Engine

Feature name

Feature description

Release date

References

Auto-scaling for subscription clusters

Subscription PolarDB for MySQL clusters support automatic scale-out and scale-in.

2021-11-05

Implement elastic scaling with auto scaling

Feature name

Description

Release date

References

New Thread Pool control parameters

PolarDB for MySQL 8.0, starting from version 8.0.1.1.9, adds multiple Thread Pool control parameters, such as bypass_thread_pool_ips and bypass_thread_pool_check_ignore_proxy.

2021-10-25

Thread Pool

Feature name

Feature description

Release date

References

New polar_replica_work_on_nonblock_mdl_mode parameter

PolarDB supports the polar_replica_work_on_nonblock_mdl_mode parameter. When this parameter is enabled, it prevents long-running transactions on PolarDB read-only nodes from blocking Data Definition Language (DDL) operations on the primary node.

2021-08-26

Prevent long-running transactions on read-only nodes from blocking DDL operations

New scheduled events feature

PolarDB now notifies you of scheduled O&M events, such as database software upgrades and hardware maintenance, in the console. These console notifications are in addition to alerts sent by text message, voice call, email, or internal message. In the Scheduled Events section, you can view event details, such as the event type, task ID, cluster name, and switch time. You can also manually change the switch time.

2021-08-06

View and manage scheduled events

Feature

Description

Release date

References

Changes to cluster specifications in a GDN

Clusters in a Global Database Network (GDN) no longer support 2-core specifications.

2021-07-02

Enterprise Edition compute node specifications

New database and table restoration feature for MySQL 5.7

Starting from version 5.7.1.0.8, PolarDB for MySQL 5.7 supports database and table restoration from a backup set or to a specific point in time.

2021-07-02

Method 1: Restore from a backup set and Method 2: Restore to a point in time

Feature

Description

Release date

References

Automatic encryption for new tables using Transparent Data Encryption (TDE)

PolarDB for MySQL 8.0, version 8.0.1.1.15 and later, automatically encrypts all new tables.

2021-06-15

Set Transparent Data Encryption (TDE)

Feature name

Feature description

Release date

References

Automatic SSL certificate rotation

When automatic certificate rotation is enabled, PolarDB automatically renews the certificate within the cluster's maintenance time window and within 10 days before the certificate expires.

2021-05-28

Enable automatic certificate rotation

Feature name

Feature description

Release date

References

Parameter templates for batch management of database clusters.

Parameter templates let you manage database cluster parameters in batches. Use this feature to quickly apply templates to PolarDB clusters.

2021-03-09

Use parameter templates

Enhanced backup for faster data restoration.

PolarDB supports enhanced backups to provide extra protection for backups from the last 24 hours. Choose to run an enhanced backup every 2, 3, or 4 hours, as needed.

2021-03-09

Enhanced backup

Support for General-purpose specifications on compute nodes.

The Cluster Edition of PolarDB for MySQL supports General-purpose specifications, which allows different clusters on the same server to make full use of each other's idle computing resources, such as CPU. Resource sharing lets you deploy many clusters at low costs.

2021-03-02

Enterprise Edition compute node specifications

Feature name

Feature description

Release date

References

MySQL 5.7 supports instant add column and statement queue

PolarDB for MySQL 5.7, starting from version 5.7.1.0.6, supports the instant add column and statement queue features. The instant add column feature lets you quickly add columns to large tables. The statement queue reduces conflict overhead and improves database performance.

2021-02-09

Instant add column

Statement queue

Faster data restoration

The backup and restoration features for PolarDB clusters use multi-threading and other technical innovations. This lets you restore a new cluster from a backup set (snapshot) in under 10 minutes.

2021-02-09

Back up and restore data

Feature

Description

Release date

References

Archive database is commercially available

PolarDB archive database uses the X-Engine engine. This engine provides a high data compression ratio and can save up to 70% on storage costs. The database is ideal for services that have low computing requirements but need to store archived data, such as DingTalk messages. The PolarDB archive database is highly compatible with MySQL and supports up to 200 TB of storage.

2021-01-13

X-Engine

Scheduled cluster upgrades and node additions

You can schedule cluster upgrades or node additions to run during off-peak hours within the next 24 hours. This reduces the impact of transient connections on your services.

2021-01-12

Manually upgrade or downgrade

Add or delete nodes

Storage plans support scale-out and upgrades

Storage plans now support scale-out and upgrades. If a storage plan is about to expire or has insufficient capacity, you can renew or upgrade it.

2021-01-04

Renew or upgrade a storage plan

Feature

Description

Release date

References

Increased storage capacity for specific node specifications

PolarDB for MySQL storage capacity is increased to 20 TB for nodes with 8 cores and 32 GB of memory. The storage capacity is increased to 100 TB for nodes with 16 cores and 128 GB of memory, 32 cores and 256 GB of memory, and 64 cores and 512 GB of memory.

2020-12-24

Enterprise Edition compute node specifications

PolarDB console supports progress bars for tasks

You can click the icon in the upper-right corner of the PolarDB console to view the progress of tasks such as backup and recovery.

2020-12-03

None

MySQL 5.6 supports the database and table restoration feature

PolarDB for MySQL 5.6 now supports the database and table restoration feature.

2020-12-01

• Method 1: Restore from a backup set

• Method 2: Restore to a point in time

MySQL 5.6 supports transparent data encryption (TDE)

PolarDB for MySQL 5.6 now supports the transparent data encryption (TDE) feature.

2020-12-01

Set transparent data encryption (TDE)

Feature

Description

Release date

References

Storage plans now cover level-1 backup fees

In addition to covering storage usage in PolarDB clusters, storage plans now also cover the storage usage that exceeds the free quota for level-1 backups.

2020-11-27

Storage plan rules

Feature

Description

Release date

References

Support for case-sensitive table names and time zone settings when you create a cluster

You can now specify whether table names are case-sensitive when you create a PolarDB for MySQL cluster.

2020-09-21

• Customizing a purchase

• Create a subscription cluster

Feature

Description

Release date

References

Service launch in China (Qingdao)

PolarDB for MySQL is now available in the China (Qingdao) region.

2020-08-21

• Customize purchase

• Create a subscription cluster

MySQL 5.7 is commercially available

PolarDB for MySQL 5.7 is now commercially available. Users who used PolarDB for MySQL 5.7 during the public preview can now purchase it for production environments.

2020-08-21

• Customizing a purchase

• Create a subscription cluster

Service launch in UK (London)

PolarDB for MySQL is now available in the UK (London) region.

2020-08-15

• Custom Purchase

• Create a subscription cluster

Feature

Description

Release date

References

Add multiple read-only nodes at once on the Upgrade/Downgrade page

You can add multiple read-only nodes to a PolarDB for MySQL cluster at the same time when you change its configurations. The process of adding multiple nodes takes about 5 minutes.

2020-07-28

Add or remove nodes

MySQL 5.7 is available in public preview

PolarDB for MySQL 5.7 is available in public preview.

2020-07-28

• Custom Purchase

• Create a subscription cluster

Global Database Network supports global read/write splitting

All cluster endpoints in a PolarDB for MySQL Global Database Network support both read and write operations. Read requests are sent to the local secondary cluster. Write requests are automatically forwarded to the primary cluster in the central region.

2020-07-01

Create a Global Database Network

Feature

Description

Release date

References

Upgrade with endpoint switch

You can upgrade an ApsaraDB RDS for MySQL instance to a PolarDB for MySQL cluster and keep the original RDS endpoint. This way, you do not need to modify your application configurations or code.

2020-06-10

Solution overview

Feature

Description

Release date

References

Backup feature upgrade

The PolarDB backup feature provides more advanced configurations and capabilities to meet enterprise-level data backup requirements and further ensure data security.

2020-05-12

Back up and restore data

Commercialization of the backup feature

PolarDB now charges for the storage space used by backup files and log files. A specific amount of storage space is provided for free.

2020-05-12

Backup storage fees

Feature

Description

Release date

References

Service launch in Japan (Tokyo)

PolarDB for MySQL, , and are now available in the Japan (Tokyo) region.

2020-04-30

• Custom purchase

• Create a subscription cluster

Service launch in China (Chengdu)

PolarDB for MySQL is now available in the China (Chengdu) region.

2020-04-13

• Custom Purchase

• Create a subscription cluster

Feature

Description

Release date

References

Service launch in US East (Virginia)

PolarDB for MySQL 5.6 and 8.0 are now available in the US East (Virginia) region.

2020-03-09

• Custom purchase

• Create a subscription cluster

Global consistency

The cluster endpoints of PolarDB for MySQL now support global consistency. This ensures that you can read the latest data even when replication delays occur.

2020-03-03

• Configure a database proxy

• What is read/write splitting?

• Consistency level

Feature

Description

Release date

References

SSL encryption

The primary endpoint of PolarDB for MySQL supports Secure Sockets Layer (SSL) encryption. SSL encrypts network connectivity at the transport layer to improve data security and integrity. However, it increases the response time of network connections. You can enable SSL encryption as needed.

2020-02-11

Enable SSL encryption

Offload reads from the primary node

PolarDB for MySQL introduces a feature that offloads read requests from the primary node. This feature sends SQL queries to read-only nodes to reduce the load on the primary node and ensure its stability, while also maintaining data consistency.

2020-02-07

Configure a database proxy

Feature

Description

Release date

References

New alert rules

CloudMonitor provides new alert rules for "ApsaraDB PolarDB for MySQL (New)". The new rules support more alert metrics and provide an improved notification experience.

For a better notification experience, use the new alert rules.

2020-01-09

Create an alert rule

Feature

Description

Release date

References

New regions supported for diagnostics and optimization

The diagnostics and optimization feature for PolarDB for MySQL now supports the US (Silicon Valley) and Germany (Frankfurt) regions.

2019-11-19

• Quick diagnostics

• Slow SQL

Service launched in Malaysia (Kuala Lumpur)

PolarDB for MySQL versions 5.6 and 8.0 are now available in the Malaysia (Kuala Lumpur) region.

2019-11-14

• Custom purchase

• Purchase a subscription cluster

Zone migration supported

PolarDB for MySQL supports changing the primary zone. You can use this feature to migrate the compute nodes of a database cluster to another zone. This is useful for disaster recovery or for providing nearby access for ECS instances.

2019-11-13

Multi-zone deployment architecture

Feature

Description

Release date

References

Performance monitoring API

• The API operation to query the performance data of a PolarDB cluster is available: DescribeDBClusterPerformance

• The API operation to query the performance data of a PolarDB cluster node is available: DescribeDBNodePerformance

2019-10-21

• Query the performance data of a PolarDB cluster

• DescribeDBNodePerformance

• Performance monitoring metrics

Node failover priority settings supported

PolarDB supports setting the failover priority for nodes. The default priority of each node is 1. You can change the value to an integer from 1 to 15. Modifying the priority does not affect the normal use of the database and takes effect in real time.

2019-10-14

None

Failover (primary/secondary failover)

PolarDB adds the planned failover (primary/secondary failover) feature. You can switch the primary node to a specified read-only node as needed.

2019-10-14

Automatic/Manual primary/secondary node failover

Feature

Description

Release date

References

PolarDB for MySQL 8.0 is commercially launched

This version provides native support for parallel query, which improves performance by 10 times in specific scenarios. It also supports quickly adding fields without locking tables, which greatly reduces the impact on business stability. In addition, it enhances some NoSQL features, lets you easily use the JSON data type, and adds advanced SQL features such as window functions.

2019-09-12

Overview

Commercially launched

PolarDB for MySQL is commercially launched in nine regions:

• China (Beijing)

• China (Zhangjiakou)

• China (Hangzhou)

• China (Shanghai)

• China (Shenzhen)

• China (Hohhot)

• China (Hong Kong)

• Singapore

• US (Silicon Valley)

2019-09-05

What is PolarDB for MySQL Enterprise Edition?

Feature

Description

Release date

References

Service launched in Indonesia (Jakarta)

PolarDB for MySQL is now available in the Indonesia (Jakarta) region.

2019-08-20

What is PolarDB for MySQL Enterprise Edition?