Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Edge Security
Situation Awareness
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Databases
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive

[Notice] DDS 4.4 OBT Invitation

Updated on 2024-01-31 GMT+08:00

Dear customer,

  • Huawei Cloud has launched free open beta testing (OBT) for Document Database Service (DDS) 4.4 since February 2, 2023.
  • This version is available for OBT in all regions.
  • DDS 4.4 is compatible with new features of MongoDB 4.4, including mutable shard keys, hedged reads, default read and write concerns, and compound hashed shard keys. For details, see What's New in DDS 4.4?
  • Compared with self-managed MongoDB databases, DDS is more flexible and allows you to customize instance configurations and required duration. All Huawei Cloud services run in secure and reliable data centers to better protect user data and maintain service stability. If you encounter any problem, contact Huawei Cloud technical support.

Quick Start

  1. Open the Huawei Cloud official website.
  2. Click Console in the upper right corner of the page and log in to the Huawei Cloud management console using your Huawei ID.
  3. Click in the upper left corner of the page and choose Databases > Document Database Service.
  4. In the upper right corner of the page, click Buy DB Instance.
  5. Select your region and set Compatible MongoDB Version to 4.4. Set other configuration items as required. For details, see Quick Config and Custom Config.

    Figure 1 Configuration information

  6. Click Next to create a DB instance for free.
  7. After the instance is created, click its name on the Instances page and click Log In. You can log in to the instance through DAS. For details, see DAS User Guide. For details about other connection methods, see Connection Methods.

    Figure 2 Logging in to a DB instance

Notice on OBT

Huawei Cloud Service Level Agreement is not guaranteed for DDS instances during the OBT.

  • Disclaimer

    You shall understand and agree that although the OBT service assures service availability and reliability, Huawei Cloud does not commit itself to the availability or reliability of any services during free trials. Huawei Cloud does not assume any responsibilities for your work or results generated by OBT services.

  • Feedback

    Huawei Cloud is willing to cooperate with you to solve problems and is committed to continuously improving service quality. In the event of any problems, you can call the customer service telephone number available at our official website to report faults and receive technical support.

Recommendations

  • What Is DDS?

    Huawei Cloud Document Database Service (DDS) is compatible with MongoDB and provides functions such as security audit, multi-account management, and point-in-time backup and restoration. It supports cluster, replica set, and single-node deployment architectures. For details, see What Is DDS?

  • What's New in DDS 4.4?

    DDS 4.4 enhances existing capabilities and improves availability. The new features are as follows:

    • Mutable Shard Keys

      In DDS 4.2, you can change the shard key value, but you must migrate data across shards based on distributed transactions. This will increase performance overheads and is unable to prevent jumbo chunks and query hotpots. In DDS 4.4, you can run the refineCollectionShardKey command to add one or more suffix fields to an existing shard key to improve the distribution of existing data on chunks. The refineCollectionShardKey command has low performance overheads because this command does not involve any data migration.

    • Hedged Reads

      To shorten the response time, DDS 4.4 provides the hedged read feature. In a sharded cluster, the mongos nodes route a read request from a client to multiple replica set nodes of a shard and return results from the first respondent to the client.

    • Compound Hashed Shard Keys
      • In versions earlier than DDS 4.4, you can specify only the hash key with a single field. This may lead to uneven data distribution in collections across data shards.
      • DDS 4.4 supports compound hashed indexes. You can specify a single hashed field in compound indexes as the prefix or suffix field.
      • The flexible compound hashed indexes have many advantages and simplify the database table design. For example, a collection uses a monotonically increasing value as the shard key. Data from the latest access request is also written to the same shard, which results in a large shard and uneven distribution of data across shards.
      • For more information about new features, see DDS 4.4 Function Overview.
      • For details about DDS features and MongoDB compatibility, see Compatibility Details.

We use cookies to improve our site and your experience. By continuing to browse our site you accept our cookie policy. Find out more

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback