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- What's New
- Function Overview
- Service Overview
-
Getting Started
- Overview
- Getting Started with Clusters
- Getting Started with Replica Sets
- Getting Started with Single Nodes
- Logging In to the DDS Console
- Example: Buying and Connecting to a DDS Instance
- Change History (Getting Started) Europe Site
-
User Guide
- Migrating Data
- Performance Tuning
- Permissions Management
- Instance Lifecycle Management
- Instance Modifications
- Data Backups
- Data Restorations
-
Parameter Template Management
- Overview
- Creating a Parameter Template
- Modifying a Parameter Template
- 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
- Billing
- Tags
- Quotas
- DDS Usage Suggestions
- Change History
- Developer Guide
-
Best Practices
- Overview
- Common Methods for Connecting to a DDS Instance
- 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 Mongos Cache Problem?
- How Do I Solve the High CPU Usage Issue?
- Creating a User and Granting the Read-Only Permission to the User
- Security White Paper
- Performance White Paper
-
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
-
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
- Adding Nodes to a Replica Set Instance
- Adding a Read Replica to an Instance
- Connection Management
-
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
- Parameter Configuration
- Log Information Queries
- Tag Management
-
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
- Quota Management
- Task Management
- API V3 (Unavailable Soon)
- Examples
- Permissions Policies and Supported Actions
- Appendix
- Change History (European Sites)
- SDK Reference
-
FAQs
-
Product Consulting
- What Is the Relationship Between DDS and MongoDB Community Edition?
- What Are the Differences Between DDS and GaussDB(for 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 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
-
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
-
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?
-
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
- Change History (FAQs) Europe Site
-
Product Consulting
-
Troubleshooting
- 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 (Troubleshooting) European Sites
- Videos
Log Reporting
Prerequisites
You have created a log group and a log stream on the Log Tank Service (LTS) console.
Scenarios
If you enable log reporting to LTS, new audit logs generated for DDS DB instances will be uploaded to LTS for management. You can view details about audit logs of DDS DB instances, including searching for logs, visualizing logs, downloading logs, and viewing real-time logs.
- Enable log reporting to LTS for a single DB instance by referring to Enabling Log Reporting to LTS for a Single DB Instance.
- Edit log reporting to LTS for a single DB instance by referring to Editing Log Reporting to LTS for a Single DB Instance.
- Disable log reporting to LTS for a single DB instance by referring to Disabling Log Reporting to LTS for a Single DB Instance.
- Enable log reporting to LTS in batches by referring to Enabling Log Reporting to LTS in Batches.
- Disable log reporting to LTS in batches by referring to Disabling Log Reporting to LTS in Batches.
Precautions
- Logs record all requests sent to your DB instance and are stored in LTS.
- This request does not take effect immediately. There is a delay of about 10 minutes.
- After this function is enabled, all audit policies are reported by default.
- If Audit Policy is enabled, LTS reuses the audit policy set for your DB instance and you will also be billed for reporting audit logs to LTS. (Only after you disable Audit Policy, the fee will be terminated.)
- If you enable audit log reporting to LTS for an instance with the Audit Policy toggle switch turned on, you can turn off this switch only when the instance status becomes available.
Enabling Log Reporting to LTS for a Single DB Instance
- Log in to the console.
- Click in the upper left corner and select a region and a project.
- Click in the upper left corner of the page and choose Databases > Document Database Service.
- On the Instances page, locate a target DB instance and click its name.
- In the navigation pane on the left, choose Audit Logs.
- On the Audit Logs page, click next to Report Logs to LTS.
Figure 1 Enabling Report Logs to LTS
- In the displayed dialog box, specify Log Group and Log Stream.
Figure 2 Enabling audit log reporting to LTS
NOTE: - Click OK.
Editing Log Reporting to LTS for a Single DB Instance
- Log in to the console.
- Click in the upper left corner and select a region and a project.
- Click in the upper left corner of the page and choose Databases > Document Database Service.
- On the Instances page, locate a target DB instance and click its name.
- In the navigation pane on the left, choose Audit Logs.
- On the Audit Logs page, click Edit next to the Report Logs to LTS toggle switch.
NOTE:
The editing function is available only when the Report Logs to LTS toggle switch is turned on.
- In the displayed dialog box, specify Log Group and Log Stream.
NOTE:
Select the target log group and log stream.
Figure 3 Editing audit log reporting to LTS
- Click OK.
Disabling Log Reporting to LTS for a Single DB Instance
- Log in to the console.
- Click in the upper left corner and select a region and a project.
- Click in the upper left corner of the page and choose Databases > Document Database Service.
- On the Instances page, locate a target DB instance and click its name.
- In the navigation pane on the left, choose Audit Logs.
- On the Audit Logs page, click next to Report Logs to LTS.
Figure 4 Disabling Report Logs to LTS
- In the displayed dialog box, click Yes.
Figure 5 Disabling audit log reporting to LTS
Enabling Log Reporting to LTS in Batches
- Log in to the console.
- Click in the upper left corner and select a region and a project.
- Click in the upper left corner of the page and choose Databases > Document Database Service.
- In the navigation pane on the left, choose Log Reporting.
- Select target DB instances and click Enable Log Reporting.
- In the displayed dialog box, specify Log Group and Log Stream.
Figure 6 Enabling log reporting to LTS in batches
NOTE:- Select the target log group and log stream.
- Click OK.
Disabling Log Reporting to LTS in Batches
- Log in to the console.
- Click in the upper left corner and select a region and a project.
- Click in the upper left corner of the page and choose Databases > Document Database Service.
- In the navigation pane on the left, choose Log Reporting.
- Select target DB instances and click Disable Log Reporting.
Figure 7 Disabling log reporting to LTS in batches
- In the displayed dialog box, click OK.
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