What's New

1

Storage space

DDS supports the following storage capacity:

• The maximum storage space is 5,000 GB for a DB instance with fewer than 8 vCPUs.
• The maximum storage space is 10,000 GB for a DB instance with 8 or more vCPUs.

Commercial use

Scaling Up Storage Space

1

Connection management

Supported regions are added.

Commercial use

Applying for and Modifying a Private Domain Name

1

Monitoring management

The description of P99 latency monitoring is added.

Commercial use

DDS Metrics

1

Slow query logs

DDS supports the display of original slow query logs.

Commercial use

Viewing Audit Logs on the DDS Console

1

Backup and restoration

The backup space of a DB instance can be displayed on the DDS console.

Commercial use

Backup Principles and Solutions

1

Maintenance window

DDS allows you to configure a maintenance window for instances.

Commercial use

Configuring the Maintenance Window

1

Buying instances

You can select an extreme SSD when buying a DB instance.

Commercial use

Custom Config

1

DB instance management

DDS allows you to change a database port.

Commercial use

Changing a Database Port

2

DBA Assistant

DBA Assistant is supported for cluster and replica set instances of version 4.2.

Commercial use

DBA Assistant

1

Log management

The page for slow query logs is optimized.

Commercial use

Viewing Audit Logs on the DDS Console

1

Buying instances

DDS supports disk encryption.

Commercial use

Custom Config

2

Backup and restoration

DDS supports data restoration for Enhanced Edition instances.

Commercial use

Restoring Data of Enhanced Edition

1

Password settings

Parentheses are allowed as special characters in a password.

Commercial use

Custom Config

1

Adding parameters to slow query log details

Scanned Indexes, Username, and Client IP Address are added to slow query log details.

Commercial use

Viewing Audit Logs on the DDS Console

2

Backup and restoration

DDS allows you to stop a backup task that is being executed.

Commercial use

Backup Principles and Solutions

1

Backup and restoration

Incremental backup and PITR are supported for DDS 4.2 replica set instances.

Commercial use

Restoring a Replica Set Instance to a Point in Time

2

Backup data encryption

Data encryption improves data security but slightly affects read/write performance.

Commercial use

Custom Config

1

Restarting a node

If there is an abnormal node in a DB instance, you can forcibly restart the node.

Commercial use

Restarting an Instance or a Node

2

Changing an instance class

If there is an abnormal node in a DB instance, you can forcibly change the node class.

Commercial use

Changing an Instance Class

1

Backup and restoration

Incremental backup and PITR are supported for DDS 4.2 cluster instances.

Commercial use

Configuring an Incremental Backup Policy

1

Fixing vulnerabilities

The CVE-2018-20805 vulnerability was fixed.

Commercial use

Upgrading a Minor Engine Version

1

Fixing vulnerabilities

• The SERVER-42518 vulnerability was fixed.
• The SERVER-37686 vulnerability was fixed.

Commercial use

Upgrading a Minor Engine Version

2

Storage fault detection

Storage fault detection is added. If a disk fault is detected, a primary/standby switchover is automatically performed to ensure the database can run stably.

Commercial use

Upgrading a Minor Engine Version

3

Memory monitoring threshold

A memory monitoring threshold can be set. If the memory usage reaches the threshold, the memory is automatically released to prevent services from being affected.

Commercial use

Upgrading a Minor Engine Version

4

Optimized the logic for defining shard keys

The logic is optimized to ensure that shard keys are defined more quickly and accurately.

Commercial use

Sharding

1

Fixing vulnerabilities

The SERVER-52618 vulnerability was fixed.

Commercial use

Upgrading a Minor Engine Version

2

Optimized user permission logic

The permission logic is optimized to improve database security.

Commercial use

Upgrading a Minor Engine Version

3

Optimized index creation

• By default, indexes are created in the background.
• Index creation on the foreground is optimized.

Commercial use

Upgrading a Minor Engine Version

4

Optimized database connection

• The connection between a C# client and a database is optimized.
• The connection using Compass SSL is added.

Commercial use

Upgrading a Minor Engine Version

1

Fixing vulnerabilities

The CVE-2020-7921 vulnerability was fixed.

Commercial use

Upgrading a Minor Engine Version

2

Querying audit logs of DDS instances through LTS

You can view details about audit logs of DDS DB instances on the LTS console, including searching for logs, visualizing logs, downloading logs, and viewing real-time logs.

Commercial use

Audit Log Policy Management

1

Document Database Service (DDS) is rolled out.

DDS is a MongoDB-compatible database service that is secure, highly available, reliable, scalable, and easy to use. It provides DB instance creation, scaling, redundancy, backup, restoration, monitoring, and alarm reporting functions with just a few clicks on the DDS console.

Commercial use

Documentation