- What's New
- Function Overview
-
Product Bulletin
- Vulnerability Notice
-
Product Notices
- [Notice] Starting OBT for DDS Cluster 5.0 on Nov 5, 2024
- [Notice] Huawei Cloud DDS Replica Set 5.0 Will Be Released Commercially on Oct 11, 2024
- [Notice] Huawei Cloud DDS 3.4 Will Be Discontinued on Oct 11, 2024
- [Notice] Starting OBT for DDS 5.0 on July 24, 2024
- [Notice] Specifications with CPU-Memory Ratio of 1:8 Will Be Available for x86-Powered Enhanced II Replica Set Instances and Cluster Shards on February 15, 2023
- [Notice] DDS 4.4 OBT Invitation
- [Product Discontinuation Notice] Huawei Cloud Document Database Service (DDS) Single Node Instances Will Be Discontinued on July 15, 2023
- [Notice] Huawei Cloud DDS 4.4 Will Be Released Commercially on Oct 08, 2023
- Version Description
- Product Release Notes
-
Service Overview
- Infographics
- What Is DDS?
- Advantages
- Comparison Between DDS and On-Premises Databases
- Typical Application Scenarios
- Functions and Features
- System Architecture
- Instances
- Notes and Constraints
- Basic Concepts
- Compatibility
- Security
- Permissions
- Related Services
- Mapping Between DDS Versions and Community Versions
- Billing
- Getting Started
-
User Guide
- Buying an Instance
-
Connecting to a DB Instance
- Connecting to a Cluster Instance
- Connecting to a Replica Set Instance
- Connecting to a Single Node Instance
- Data Migration
- Performance Tuning
- Permissions Management
- Instance Lifecycle Management
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Instance Modifications
- Changing an Instance Name
- Changing an Instance Description
- Modifying an Instance Tag
- Changing the Name of the Replica Set in the Connection Address
- Upgrading a Minor Engine Version
- Upgrading a Major Engine Version
- Scaling Up Storage Space
- Changing an Instance Class
- Changing Cluster Instance Nodes
- Changing Replica Set Instance Nodes
- Configuring the Maintenance Window
- Changing an AZ
- Updating the OS of a DB Instance
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Data Backups
- Backup Principles and Solutions
- Configuring an Automated Backup Policy
- Configuring an Incremental Backup Policy
- Configuring the Cross-Region Backup Policy
- Setting Backup Method for a DB Instance
- Creating a Manual Backup
- Deleting a Manual Backup
- Deleting an Automated Backup
- Stopping a Backup
- Downloading a Backup File
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Data Restorations
- Solutions
- Restoring Data to a New Instance
- Restoring Data to the Original Instance
- Restoring Data to a Point in Time
- Restoring Data to an On-Premises Database
- Restoring Data of Enhanced Edition
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Parameter Template Management
- Overview
- Creating a Parameter Template
- Modifying DDS DB Instance Parameters
- Viewing Parameter Change History
- Exporting a Parameter Template
- Comparing Parameter Templates
- Replicating a Parameter Template
- Resetting a Parameter Template
- Applying a Parameter Template
- Viewing Application Records of a Parameter Template
- Modifying the Description of a Parameter Template
- Deleting a Parameter Template
- Connection Management
- Database Usage
- Data Security
- Monitoring and Alarm Reporting
- Auditing
- Logs
- Task Center
- DBA Assistant
- SQL Execution Control
- Cross-AZ Disaster Recovery
- Tags
- Quotas
- DDS Usage Suggestions
- Developer Guide
-
Best Practices
- Overview
- Security Best Practices
- Common Methods for Connecting to a DDS Instance
- From Other Cloud MongoDB to DDS
- From On-Premises MongoDB to DDS
- From ECS-hosted MongoDB to DDS
- How Do Replica Sets Achieve High Availability and Read/Write Splitting?
- Sharding
- How Do I Improve DDS Performance by Optimizing SQL Statements?
- How Do I Prevent the dds mongos Cache Problem?
- How Do I Solve the High CPU Usage Issue?
- How Do I Troubleshoot High Memory Usage of DDS DB Instances?
- What Can I Do If the Number of Connections of an Instance Reaches Its Maximum?
- Creating a User and Granting the Read-Only Permission to the User
- Proper Use of Data Definition Languages (DDL) Statements
- How Is a DDS Node Going to Be Disconnected and What Can I Do?
- Security White Paper
- Performance White Paper
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API Reference
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
APIs V3.0 (Recommended)
- Querying the API Version
- Querying Database Version Information
- Querying Database Specifications
- Querying the Database Disk Type
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DB Instance Management
- Creating a DB Instance
- Restarting a DB Instance
- Deleting a DB Instance
- Querying Instances and Details
- Scaling Up Storage Space
- Adding Nodes for a Cluster Instance
- Modifying DB Instance Specifications
- Performing a Primary/Secondary Switchover in a Replica Set Instance
- Enabling or Disabling SSL
- Modifying a DB Instance Name
- Changing an Instance Description
- Changing a Database Port
- Changing a Security Group
- Binding an EIP
- Unbinding an EIP
- Changing a Private IP Address
- Creating Shard or Config IP Addresses of a Cluster Instance
- Configuring Cross-CIDR Access for a Replica Set
- Querying AZs to Which an Instance Can Be Migrated
- Migrating a DB Instance to Another AZ
- Setting the Recycle Bin Policy
- Adding Nodes to a Replica Set Instance
- Adding a Read Replica to an Instance
- Upgrading the Database Patch
- Enabling or Disabling Monitoring by Seconds
- Querying Second-Level Monitoring Configurations
- Configuring the Maintenance Window
- Querying the Recycling Policy of a DB Instance
- Querying DB Instances in the Recycle Bin
- Checking for Weak Passwords
- Querying the Estimated Database Patch Upgrade Duration
- Querying Instance Disk Information
- Obtaining the SSL Certificate Download Address
- Querying the Name of the Replica Set in the Connection Address
- Changing the Name of the Replica Set in the Connection Address
- Deleting Instance Nodes
- Deleting a Read Replica of an Instance
- Querying Access Across CIDR Blocks for a Replica Set Instance
- Querying LTS Log Configurations
- Associating an Instance with an LTS Log Stream
- Disassociating an Instance from an LTS Log Stream
- Configuring an Autoscaling Policy for Storage Space
- Querying the Autoscaling Policy of Storage Space
- Upgrading the Minor Versions of DB Instances in Batches
- Connection Management
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Backup and Restoration
- Creating a Manual Backup
- Deleting a Manual Backup
- Querying the Backup List
- Querying an Automated Backup Policy
- Setting an Automated Backup Policy
- Restoring Data to a New DB Instance
- Obtaining the Link for Downloading a Backup File
- Querying the Restoration Time Ranges
- Obtaining the List of Databases That Can Be Restored
- Obtaining the List of Database Collections That Can Be Restored
- Restoring Data to the Original DB Instance
- Restoring Databases and Tables to a Point in Time
- Stopping a Backup
- Deleting Manual Backups in Batches
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Parameter Configuration
- Obtaining Parameter Templates
- Creating a Parameter Template
- Deleting a Parameter Template
- Obtaining Details About a Parameter Template
- Modifying a Parameter Template
- Applying a Parameter Template
- Obtaining Parameters of a Specified DB Instance
- Modifying Parameters of a Specified DB Instance
- Querying Available DB Instances
- Viewing Application Records of a Parameter Template
- Viewing Parameter Change History
- Comparing Parameter Templates
- Replicating a Parameter Template
- Resetting a Parameter Template
- Checking Whether a Parameter Template Name Is Unique
- Viewing Parameter Change History of an Instance
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Log Information Queries
- Querying Database Slow Logs (New)
- Obtaining Links for Downloading Slow Query Logs
- Showing Original Slow Logs
- Querying Database Error Logs (New)
- Obtaining Links for Downloading Error Logs
- Configuring SQL Audit
- Querying SQL Audit Policy
- Obtaining the Audit Log List
- Obtaining Links for Downloading Audit Logs
- Querying the Switch of Show Original Log
- Deleting Audit Logs
- Tag Management
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Managing Databases and Users
- Creating a Database User
- Creating a Database Role
- Querying Details About Database Users
- Querying the Database Role List
- Changing the Password of a Database User
- Checking the Password for Logging In to a Database
- Querying Cluster Balancing Settings
- Enabling or Disabling Cluster Balancing
- Setting the Activity Time Window for Cluster Balancing
- Deleting a Database User
- Deleting a Database Role
- Querying Databases
- Quota Management
- Database O&M
- Task Management
- API V3 (Unavailable Soon)
- Examples
- Permissions Policies and Supported Actions
- Appendix
- SDK Reference
-
FAQs
-
Product Consulting
- What Is the Relationship Between DDS and MongoDB Community Edition?
- Q&A About Switching Storage Engine to RocksDB for DDS 4.2 and Later Versions
- What Are the Differences Between DDS and GeminiDB Mongo?
- What Precautions Should Be Taken When Using DDS?
- What Is the Availability of DDS DB Instances?
- Will My DDS DB Instances Be Affected by Other Users' DDS DB Instances?
- Does DDS Support Multi-AZ Deployment?
- Can I Change the VPC for a Created Instance?
- Can I Change the Region for a Created Instance?
- What Is Hidden Node?
- Database Versions
- Resource Freezing, Release, Deletion, and Unsubscription
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Resource and Disk Management
- Which Items Occupy the Storage Space of DDS Instances?
- Which Types of Logs and Files Occupy DDS DB Instance Storage Space?
- Why Is the Storage Space Usage Displayed on the GUI Smaller Than the Actual Usage?
- Why Does Available Disk Space Not Increase After Data Is Deleted?
- Why Is the Resident Memory of a 4 vCPUs/8 GB Memory Replica Set Instance Only 4 GB?
- Capacity Expansion and Specification Changes
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Database Performance
- When Will a Primary/Standby Switchover Be Triggered for a Cluster or Replica Set?
- High Storage Usage
- What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?
- How Is Data Transferred Between the Primary and Secondary Nodes of a Replica Set?
- How Do I Clear an Alarm Saying the Shard Memory Usage Exceeds 90%?
- What Can I Do If a Query Error Is Reported After Data Is Written Into the DDS Cluster?
- Database Permissions
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Creation and Deletion
- How Do I Select Instance Specifications and Nodes?
- Why Is an Instance Not Displayed on the Console After It Is Created?
- Can I Use a Template to Create DDS DB Instances?
- Why Is Data Missing from My Database?
- Will My Backups Be Deleted If I Delete My Cloud Account?
- What Are the Differences Between Instance Deletion and Unsubscription?
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Database Connection
- What Should I Do If I Fail to Connect to a DDS Instance?
- What Can I Do If the Number of Connections of an Instance Reaches Its Maximum?
- How Do I Query and Limit the Number of Connections?
- What Should I Do If the ECS and DDS Are Deployed in Different VPCs and They Cannot Communicate with Each Other?
- Do Applications Need to Support Automatic Reconnecting to the DDS Database?
- How Do I Create and Log In to an ECS?
- Installing a Client
- Database Usage
- Database Migration
- Database Storage
- Database Parameters
- Backup and Restoration
- Network Security
- Monitoring and Alarm
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Product Consulting
-
Troubleshooting
- Overview
- DDS Instance Node Fault Handling Mechanism
- Connection Failure Message: network error while attempting to run command 'isMaster'
- Connection Failure Messages: No route to host and connection attempt failed
- Connection Failure Message: Authentication failed
- Connection Failure Message: couldn't connect to server
- Connection Failure Message: cannot list multiple servers in URL without 'replicaSet' option
- Connection Failure Message: Timeout while receiving message
- Connection Failure Message: exception: login failed and U_STRINGPREP_PROHIBITED_ERROR
- Change History
- Videos
- Glossary
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Introduction
- Logging In to the DDS Console
- Getting Started with Clusters
- Getting Started with Replica Sets
- Connection Management
- Migrating Data
- Account Management
-
Instance Management
- Changing a DB Instance Name
- Adding Cluster Instance Nodes
- Reverting Cluster Instance Nodes
- Scaling Up Storage Space
- Changing the CPU or Memory of a Cluster DB Instance
- Changing the CPU or Memory of a Replica Set DB Instance
- Manually Switching the Primary and Secondary Nodes of a Replica Set
- Exporting DB Instance Information
- Restarting a DB Instance or a Node
- Deleting a DB Instance
- Recycling a DB Instance
- Backup and Restore
- Parameter Group Settings
- Task Center
- Monitoring and Alarm Reporting
- Auditing
- Log Management
- Tag
-
FAQs
- Product Consulting
- Database Performance
- Creation and Deletion
-
Database Connection
- Can an External Server Access the DDS DB Instance?
- What Is the Number of DDS Database Connections?
- What Should I Do If an ECS Cannot Connect to a DDS DB Instance?
- What Should I Do If a Database Client Problem Causes a Connection Failure?
- What Should I Do If a DDS Server Problem Causes a Connection Failure?
- How Can My Applications Access a DDS DB Instance in a VPC?
- Do Applications Need to Support Automatic Reconnecting to the DDS Database?
- How Do I Create and Log In to an ECS?
- How Can I Install a MongoDB Client?
- How Do I Install Robo 3T?
- Database Usage
- Database Storage
- Database Parameter Modification
- Backup and Restoration
- Network Security
- Resource Monitoring
- Log Management
- Which Commands are Supported or Restricted by DDS?
- Change History
-
API Reference (ME-Abu Dhabi Region)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
API Description
- Querying the API Version
- Querying Database Version Information
- Querying All DB Instance Specifications
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DB Instance Management
- Creating a DB Instance
- Restarting a DB Instance
- Deleting a DB Instance
- Querying DB Instances
- Scaling Up Storage Space
- Adding Nodes for a Cluster Instance
- Modifying DB Instance Specifications
- Performing a Primary/Secondary Switchover in a Replica Set Instance
- Enabling or Disabling SSL
- Modifying a DB Instance Name
- Changing a Database Port
- Changing a Security Group
- Binding an EIP
- Unbinding an EIP
- Changing a Private IP Address
- Backup and Restoration
- Tag Management
- Permissions Policies and Supported Actions
- Appendix
- Change History
-
User Guide (Paris Region)
- Introduction
- Logging In to the DDS Console
- Getting Started with Clusters
- Getting Started with Replica Sets
- Connection Management
- Migrating Data
- Account Management
-
Instance Management
- Changing a DB Instance Name
- Adding Cluster Instance Nodes
- Reverting Cluster Instance Nodes
- Scaling Up Storage Space
- Changing the CPU or Memory of a Cluster DB Instance
- Changing the CPU or Memory of a Replica Set DB Instance
- Manually Switching the Primary and Secondary Nodes of a Replica Set
- Exporting DB Instance Information
- Restarting a DB Instance or a Node
- Deleting a DB Instance
- Backup and Restore
- Parameter Group Settings
- Task Center
- Monitoring and Alarm Reporting
- Auditing
- Log Management
- Tag
-
FAQs
- Product Consulting
- Database Performance
- Creation and Deletion
-
Database Connection
- Can an External Server Access the DDS DB Instance?
- What Is the Number of DDS Database Connections?
- What Should I Do If an ECS Cannot Connect to a DDS DB Instance?
- What Should I Do If a Database Client Problem Causes a Connection Failure?
- What Should I Do If a DDS Server Problem Causes a Connection Failure?
- How Can My Applications Access a DDS DB Instance in a VPC?
- Do Applications Need to Support Automatic Reconnecting to the DDS Database?
- How Do I Create and Log In to an ECS?
- How Can I Install a MongoDB Client?
- How Do I Install Robo 3T?
- Database Usage
- Database Storage
- Database Parameter Modification
- Backup and Restoration
- Network Security
- Log Management
- Which Commands are Supported or Restricted by DDS?
- Change History
-
API Reference (Paris Region)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
API Description
- Querying the API Version
- Querying Database Version Information
- Querying All DB Instance Specifications
-
DB Instance Management
- Creating a DB Instance
- Restarting a DB Instance
- Deleting a DB Instance
- Querying DB Instances
- Scaling Up Storage Space
- Adding Nodes for a Cluster Instance
- Modifying DB Instance Specifications
- Performing a Primary/Secondary Switchover in a Replica Set Instance
- Enabling or Disabling SSL
- Modifying a DB Instance Name
- Changing a Database Port
- Changing a Security Group
- Binding an EIP
- Unbinding an EIP
- Changing a Private IP Address
- Backup and Restoration
- Appendix
- Change History
-
User Guide (Kuala Lumpur Region)
- Introduction
- Logging In to the DDS Console
- Getting Started with Clusters
- Getting Started with Replica Sets
- Connection Management
- Migrating Data
- Account Management
-
Instance Management
- Changing a DB Instance Name
- Adding Cluster Instance Nodes
- Reverting Cluster Instance Nodes
- Scaling Up Storage Space
- Changing the CPU or Memory of a Cluster DB Instance
- Changing the CPU or Memory of a Replica Set DB Instance
- Manually Switching the Primary and Secondary Nodes of a Replica Set
- Exporting DB Instance Information
- Restarting a DB Instance or a Node
- Deleting a DB Instance
- Recycling a DB Instance
- Backup and Restore
- Parameter Group Settings
- Task Center
- Monitoring and Alarm Reporting
- Auditing
- Log Management
- Tag
-
FAQs
- Product Consulting
- Database Performance
- Creation and Deletion
-
Database Connection
- Can an External Server Access the DDS DB Instance?
- What Is the Number of DDS Database Connections?
- What Should I Do If an ECS Cannot Connect to a DDS DB Instance?
- What Should I Do If a Database Client Problem Causes a Connection Failure?
- What Should I Do If a DDS Server Problem Causes a Connection Failure?
- How Can My Applications Access a DDS DB Instance in a VPC?
- Do Applications Need to Support Automatic Reconnecting to the DDS Database?
- How Do I Create and Log In to an ECS?
- How Can I Install a MongoDB Client?
- How Do I Install Robo 3T?
- Database Usage
- Database Storage
- Database Parameter Modification
- Backup and Restoration
- Network Security
- Resource Monitoring
- Log Management
- Which Commands are Supported or Restricted by DDS?
- Change History
-
API Reference (Kuala Lumpur Region)
- Before You Start
- API Overview
- Calling APIs
- Getting Started
-
API Description
- Querying the API Version
- Querying Database Version Information
- Querying All DB Instance Specifications
-
DB Instance Management
- Creating a DB Instance
- Restarting a DB Instance
- Deleting a DB Instance
- Querying DB Instances
- Scaling Up Storage Space
- Adding Nodes for a Cluster Instance
- Modifying DB Instance Specifications
- Performing a Primary/Secondary Switchover in a Replica Set Instance
- Enabling or Disabling SSL
- Changing the Administrator Password
- Modifying a DB Instance Name
- Changing a Database Port
- Changing a Security Group
- Binding an EIP
- Unbinding an EIP
- Changing a Private IP Address
- Backup and Restoration
- Tag Management
- Permissions Policies and Supported Actions
- Appendix
- Change History
-
User Guide (ME-Abu Dhabi Region)
- General Reference
Show all
Function Overview
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OBS 2.0支持
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Document Database Service (DDS) is an easy-to-use MongoDB-compatible database service that is secure, highly available, reliable, and scalable.It provides DB instance creation, scaling, disaster recovery, backup, restoration, monitoring, and alarm reporting functions with just a few clicks on the DDS console. DDS offers three types of instance architectures to suit different scenarios: cluster, replica set, and single node.
DDS has the following features:
① DDS automatically establishes a three-node replica set architecture. It supports fast deployment, high availability (HA) storage, disaster recovery, and failover.
② DDS provides sharded cluster instances comprising a config node paired with multiple shard and dds mongos nodes. These cluster instances can be easily scaled up to enhance read and write performance.
③ DDS lets you back up or restore a database from the management console in just a few clicks.
④ DDS provides performance metrics and you can configure alarm notifications to make it easier to keep abreast of instance statuses.
All regions
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OBS 2.0支持
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Each DDS cluster is an independent document database. A sharded cluster consists of a config node, and multiple dds mongos and shard nodes.
Data read and write requests are forwarded by the dds mongos nodes, which read configuration settings from config, and then allocate the read and write requests to the shard nodes, making it easy to handle high concurrency scenarios. In addition, each config node, along with the shard nodes in its cluster, are replicated in triplicate to ensure high availability.
① Each dds mongos is a single node, but you can provision multiple dds mongos nodes for load balancing and failovers. A single cluster can contain 2 to 32 dds mongos nodes.
② Each shard is a three-node replica set. A single cluster supports 2 to 32 shard nodes.
③ A config node is a necessary part of a cluster instance, and is also deployed as a replica set. The config node stores instance configuration data.
④ The number of dds mongos and shard nodes can be increased on the management console. You do not need to use native commands.
⑤ You cannot access data on the config or shard nodes directly. You can only manage the data on the shard nodes though the dds mongos nodes.
⑥ If the region where the tenant belongs contains three or more AZs, a DB instance can be deployed across these different AZs. In a DB instance, the dds mongos nodes can be deployed in one or more AZs. The primary, secondary, and hidden config and shard nodes are deployed across three different AZs for disaster recovery.
⑦ Currently, a three-node replica set cannot be directly converted into a cluster.
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OBS 2.0支持
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A replica set consists of a set of mongod processes. It is a collection of nodes that help ensure data redundancy and reliability.
A replica set consists of three nodes: primary, secondary, and hidden. The three-node architecture is set up automatically, and the three nodes automatically synchronize data with each other to ensure data reliability.
- Primary node: Primary nodes are used to process both read and write requests.
- Secondary node: Secondary nodes are used to process read requests only.
- Hidden node: Hidden nodes are used to back up data.
You can perform operations on the primary and secondary nodes. If a primary node becomes faulty, a secondary node takes over and becomes the primary. If the secondary node is unavailable, a hidden node will take the role of the secondary to ensure high availability.
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OBS 2.0支持
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A single node instance, as its name suggests, contains only one node and that node can be accessed directly.
As a supplement to the cluster and replica set architectures, the single-node architecture is useful for R&D, testing, and non-core data storage of enterprises. While not as robust as replica sets, single node architecture can be a less expensive way to visualize O&M and provide elastic scaling.
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OBS 2.0支持
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DDS provides multiple migration schemes to migrate data in different service scenarios:
① Migrating data using DRS.
② Migrating data using mongoexport and mongoimport.
③ Migrating data using mongodump and mongorestore.
DRS is a stable, efficient, easy-to-use cloud service for online database migration.It simplifies data transmission between databases and reduces data transmission costs. You are advised to use DRS to migrate DB instances.
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OBS 2.0支持
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You can scale up the storage space of a DB instance to suit your service requirements.
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OBS 2.0支持
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You can change the DB instance class to meet your service requirements.
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OBS 2.0支持
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DDS allows you to back up databases by configuring an automated backup policy or by creating manual backups. If a database is faulty or data is damaged, you can restore it from backups to ensure data reliability.
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OBS 2.0支持
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You can customize the parameter settings to manage DB engine configurations. DB parameter templates act as a container for engine configuration values that are applied to one or more DB instances.
When creating a DB instance, you can associate a default parameter template or a custom parameter template with the DB instance. After a DB instance is created, you can also change the associated parameter template.
- Default parameter templates
Each default parameter template contains database engine defaults and database system defaults.
- Custom parameter templates
If you need a DB instance with customized parameter settings, you can create a parameter template and change the parameter values as required.
Precautions
- Default parameter templates are unchangeable. When you click their names, you can only view the existing details. If inappropriate settings of a customized parameter template lead to a database startup failure, you can reset the customized parameter template by referring to the settings of the default parameter template.
- After modifying a parameter, you need to view the associated instance status in the instance list. If Pending restart is displayed, you need to restart the instance for the modification to take effect.
- Improper parameter settings in a parameter template may have unintended adverse effects, including degraded performance and system instability. Exercise caution when modifying database parameters and you need to back up data before modifying parameters in a parameter template. Before applying parameter changes to a production DB instance, you should try out these changes on a test DB instance.
- Default parameter templates
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OBS 2.0支持
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Cloud Eye monitors the status of DDS. You can obtain the monitoring metrics of DDS on the management console.
Monitored data requires a period of time for transmission and display. The status of DDS instances displayed on the Cloud Eye page is from about 5 to 10 minutes ago, so the data for a newly created DB instance takes about 5 to 10 minutes to show up on Cloud Eye.
All regions
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OBS 2.0支持
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DDS log management allows you to view database-level error logs, slow query logs, and audit logs, helping you analyze root causes of faults.
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OBS 2.0支持
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Tag Management Service (TMS) enables you to use tags on the management console to manage resources. TMS works with other cloud services to manage tags. TMS manages tags globally and other cloud services manage their own tags.
Adding tags to DDS DB instances helps you better identify and manage them. A DB instance can be tagged during or after it is created.
- You are advised to set predefined tags on the TMS console.
- A tag consists of a key and value. You can add only one value for each key.
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