TaurusDB
TaurusDB
Enterprise Edition
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Enterprise Edition
All results for "
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What's New
Function Overview
Product Bulletin
Product Bulletin
GaussDB(for MySQL) Will Be Renamed TaurusDB
GaussDB(for MySQL) Resource Display Pages Will Be Adjusted on the Console
Serverless DB Instances Will Be Released Commercially on Jan 19, 2024, 00:00 GMT+08:00
Changing URLs about GaussDB(for MySQL) in Huawei Cloud Help Center
Product Release Notes
GaussDB(for MySQL) Kernel Version Release History
GaussDB(for MySQL) Version Release Policy
Service Overview
GaussDB(for MySQL) Infographics
What Is GaussDB(for MySQL)?
Product Architecture
Basic Concepts
Advantages
Instance Description
DB Engines and Versions
Instance Specifications
Storage Types
Instance Statuses
Security
Shared Responsibilities
Identity Authentication and Access Control
Data Protection
Audit and Logs
Risk Monitoring
Fault Rectification
Certificates
Permissions
Constraints
Related Services
Differences Between GaussDB(for MySQL) and RDS for MySQL
Billing
Billed Items
GaussDB(for MySQL) Instance Billed Items
GaussDB(for MySQL) Cross-Region Backup Billed Items
Billing Modes
Comparison of Billing Modes
Yearly/Monthly Billing
Pay-per-Use Billing
Serverless
Billing Examples
Billing Mode Changes
Overview
Pay-per-Use to Yearly/Monthly
Yearly/Monthly to Pay-per-Use
Renewing Subscriptions
Overview
Manually Renewing a DB Instance
Auto-renewing a DB Instance
Bills
Arrears
Billing Termination
Cost Management
Cost Composition
Cost Allocation
Cost Analysis
Cost Optimization
Getting Started
Buying a DB Instance and Connecting to It Using a MySQL Client
Buying a DB Instance and Connecting to It Using MySQL-Front
Getting Started with Common Practices
Kernels
GaussDB(for MySQL) Kernel Version Release History
Common Kernel Functions
Parallel Query
Overview
Precautions
Enabling Parallel Query
Testing Parallel Query Performance
Near Data Processing
Overview
DDL Optimization
Parallel DDL
DDL Fast Timeout
Non-blocking DDL
Progress Queries for Creating Secondary Indexes
Backward Index Scan
Statement Outline
Idle Transaction Disconnection
Function
Parameter Description
Example
LIMIT...OFFSET Pushdown
Function
Usage
Performance Tests
Conversion of IN Predicates Into Subqueries
Function
Precautions
Usage
Performance Tests
DISTINCT Optimization for Multi-Table Joins
Diagnosis on Large Transactions
Enhanced Partitioned Tables
Subpartitioning
Overview
Precautions
RANGE-RANGE
RANGE-LIST
LIST-RANGE
LIST-LIST
HASH-HASH
HASH-KEY
HASH-RANGE
HASH-LIST
KEY-HASH
KEY-KEY
KEY-RANGE
KEY-LIST
LIST DEFAULT HASH
INTERVAL RANGE
Hot Row Update
Multi-tenant Management and Resource Isolation
Column Compression
User Guide
Permissions Management
Creating a User and Granting GaussDB(for MySQL) Permissions
Creating a GaussDB(for MySQL) Custom Policy
Buying a DB Instance
Buying a Pay-per-Use DB Instance
Buying a Yearly/Monthly DB Instance
Buying a Serverless DB Instance
Connecting to a DB Instance
Overview
Connecting to a DB instance Through DAS
Connecting to a DB Instance Using a MySQL Client
Using a MySQL Client to Connect to a DB Instance Over a Private Network
Using a MySQL Client to Connect to a DB Instance Over a Public Network
Connecting to a DB Instance Using MySQL-Front
Connecting to a DB Instance Using JDBC
Connection Information Management
Configuring Security Group Rules
Binding an EIP
Changing a Database Port
Applying for and Changing a Private Domain Name
Configuring and Changing a Private IP Address
Database Usage
Usage Guidelines
Database Permissions
Table Design
Index Design
SQL Usage
Database Management
Creating a Database
Deleting a Database
Enabling or Disabling Event Scheduler
Account Management (Non-Administrator)
Creating an Account
Resetting a Password for an Account
Changing Permissions for Accounts
Deleting an Account
Data Migration
Data Migration Schemes
Migrating Data to GaussDB(for MySQL) Using mysqldump
Migrating Data to GaussDB(for MySQL) Using the Export and Import Functions of DAS
Instance Management
Viewing the Overall Status of DB Instances
Viewing Metrics
Instance Lifecycle Management
Changing a DB Instance or Node Name
Modifying a DB Instance Description
Rebooting a DB Instance or Node
Exporting DB Instance Information
Deleting a DB Instance
Rebuilding a DB Instance in the Recycle Bin
Introducing Heterogeneous DR Instances
Configuration Changes
Changing the vCPUs or Memory of a DB Instance or Node
Changing the Storage Space of a DB Instance
Configuring Auto Scaling for a DB Instance
Changing the Maintenance Window of a DB Instance
Customizing Displayed Items of the Instance List
Upgrading the Minor Kernel Version of a DB Instance
Updating the OS of a DB Instance
Data Backups
Backup Principles
Backup Types
Backup Space and Billing
Creating an Automated Backup
Configuring a Same-Region Backup Policy
Configuring a Cross-Region Backup Policy
Creating a Manual Backup
Enabling or Disabling Encrypted Backup
Exporting Backup Information
Data Restorations
Restoration Solutions
Restoring a DB Instance from Backups
Restoring a DB Instance to a Point in Time
Restoring Tables to a Point in Time
Restoring a DB Instance from a Cross-region Backup
Serverless Instances
What Is a Serverless Instance?
Changing the Compute Range
Changing the Maximum and Minimum Numbers of Read Replicas
Adding Serverless Read Replicas to an Instance with Fixed Specifications
Read Replicas
Introducing Read Replicas
Adding Read Replicas to a DB Instance
Promoting a Read Replica to Primary
Deleting a Read Replica
Unsubscribing from a Read Replica
Database Proxy (Read/Write Splitting)
What Is Database Proxy
How to Use a Proxy Instance to Enable Read/Write Splitting
Changing Configurations of a Proxy Instance
Changing the Consistency Level of a Proxy Instance
Enabling the Connection Pool for a Proxy Instance
Enabling Transaction Splitting for a Proxy Instance
Modifying the Routing Policy of a Proxy Instance
Changing Read Weights of Nodes
Modifying the Multi-statement Processing Mode of a Proxy Instance
Enabling Automatic Association of New Nodes with a Proxy Instance
Enabling Access Control for a Proxy Instance
Changing the Specifications of a Proxy Instance
Changing the Number of Nodes for a Proxy Instance
Applying for a Private Domain Name for a Proxy Instance
Changing the Port of a Proxy Instance
Changing the Proxy Address of a Proxy Instance
Modifying Parameters of a Proxy Instance
Binding an EIP to a Proxy Instance
Proxy Instance Lifecycle
Rebooting a Proxy Instance
Deleting a Proxy Instance
Proxy Instance Kernel Versions
Kernel Version Release History
Upgrading the Kernel Version of a Proxy Instance
Using Hints for Read/Write Splitting
DBA Assistant
Function Overview
Performance Monitoring
Viewing the Operating Status of a DB Instance
Viewing Real-Time Performance Metrics
Problem Diagnosis
Managing Real-Time Sessions
Managing Storage
Viewing Anomaly Snapshots
SQL Analysis and Tunning
Viewing Slow Query Logs
Viewing Top SQL Statements
Creating an SQL Insights Task
Configuring SQL Statement Concurrency Control
Configuring Auto Flow Control
Parameter Management
Viewing Parameters of a DB Instance
Modifying Parameters of a DB Instance
Viewing Suggestions on GaussDB(for MySQL) Parameter Tuning
Introducing the High-Performance Parameter Template
Parameter Template Management
Creating a Custom Parameter Template
Applying a Parameter Template
Replicating a Parameter Template
Resetting a Parameter Template
Comparing Parameter Templates
Exporting a Parameter Template
Modifying the Description of a Parameter Template
Deleting a Parameter Template
Security and Encryption
Configuring Database Security
Resetting the Administrator Password
Changing the Security Group of a DB Instance
Configuring SSL for a DB instance
Enabling TDE for a DB Instance
Application Lossless and Transparent (ALT)
Introducing ALT
Enabling ALT
Example: Using ALT to Promote a Read Replica to Primary
HTAP Analysis (Standard Edition)
What Is HTAP of Standard Edition
Connecting to an HTAP Instance for Complex OLAP Queries
Connecting to a Standard HTAP Instance
Connecting to a Standard HTAP Instance Through DAS
Connecting to a Standard HTAP Instance Through JDBC
Standard HTAP Instance Management
Rebooting a Standard HTAP Instance
Rebooting a Node of a Standard HTAP Instance
Deleting a Standard HTAP Instance
Standard HTAP Account Management
Syntax and Data Type Mappings between HTAP and GaussDB(for MySQL) Instances
RegionlessDB Clusters
RegionlessDB Cluster Overview
Using a RegionlessDB Cluster for Remote Multi-Active DR
Using a RegionlessDB Cluster for Remote DR
Performing a Primary/Standby Switchover or Failover in a RegionlessDB Cluster
Removing a Standby Instance from a RegionlessDB Cluster
Deleting a RegionlessDB Cluster
Viewing the Replication Latency and Traffic of a RegionlessDB Cluster
Monitoring and Alarms
GaussDB(for MySQL) Metrics
Viewing Monitoring Metrics
Viewing DB Instance Metrics
Viewing Proxy Instance Metrics
Configuring Monitoring by Seconds
Configuring Alarm Rules
Creating an Alarm Rule for a DB Instance
Creating an Alarm Rule for a Proxy Instance
Event Monitoring
Introducing Event Monitoring
Viewing Event Monitoring Data
Creating Alarm Rules for Event Monitoring
Events Supported by Event Monitoring
Logs and Auditing
Configuring Log Reporting
Managing Error Logs of a DB Instance
Managing Slow Query Logs of a DB Instance
Configuring SQL Explorer for a DB Instance
Interconnection with CTS
Key Operations Supported by CTS
Viewing Tracing Events
Task Center
Viewing a Task
Deleting a Task Record
Tag Management
Quota Management
Best Practices
Overview
From ECS-hosted MySQL to GaussDB(for MySQL)
Overview
Resource Planning
Operation Guide
Procedure
ECS-hosted MySQL Server
Creating a VPC and Security Group
Creating an ECS (MySQL Server)
Installing a MySQL Database (Community Edition)
Creating an ECS and Installing the MySQL Client on It
Cloud Migration
Creating a GaussDB(for MySQL) Instance
Creating a DRS Migration Task
Checking the Migration Results
From Other Cloud MySQL to GaussDB(for MySQL)
Overview
Resource Planning
Operation Process
Creating a VPC and Security Group
Creating a GaussDB(for MySQL) Instance
Configuring a MySQL Instance on Other Clouds
Creating a DRS Migration Task
Checking Migration Results
Security Best Practices
Performance White Paper
Test Method
Performance Data
Read/Write Mode
Read-only Mode
Write-only Mode
API Reference
Before You Start
Overview
API Calling
Endpoints
Constraints
Concepts
API Overview
Calling APIs
Making an API Request
Authentication
Response
APIs (Recommended)
DB Engine Version Queries
Querying Version Information About a DB Engine
Database Specification Queries
Querying Database Specifications
Instance Management
Creating a DB Instance
Rebooting a DB Instance
Deleting/Unsubscribing from a DB Instance
Creating a Read Replica
Deleting or Unsubscribing from a Read Replica
Scaling up Storage of a Yearly/Monthly DB Instance
Changing a DB Instance Name
Resetting a Database Password
Changing DB Instance Specifications
Querying Dedicated Resource Pools
Querying Dedicated Resources
Configuring the Monitoring By Seconds Function
Querying the Configuration of Monitoring by Seconds
Rebooting a Node
Upgrading the Kernel Version of a DB Instance
Enabling or Disabling SSL
Binding an EIP
Unbinding an EIP
Promoting a Read Replica to Primary
Changing a Maintenance Window
Changing a Security Group
Changing a Private IP Address
Changing a Database Port
Changing a DB Instance Description
Applying for a Private Domain Name
Changing a Private Domain Name
Querying the Kernel Version
Modifying Auto Scaling Policies
Querying Auto Scaling Policies
Pre-Checking Resources
Querying DB instances
Querying Details of a DB Instance
Querying Details of DB Instances in Batches
Modifying a Recycling Policy
Querying a Recycling Policy
Querying Instances in the Recycle Bin
Changing Node Names in Batches
Querying Historical Records of Auto Scaling
Setting a Policy for a Serverless DB Instance
Changing the Failover Priority of a Read Replica
Querying an EIP
Backup Management
Configuring a Same-Region Backup Policy
Creating a Manual Backup
Querying Full Backups
Querying an Automated Backup Policy
Deleting a Manual Backup
Restoring Data to the Original Instance or an Existing Instance
Querying the Restoration Time Range
Enabling or Disabling Encrypted Backup
Checking Whether Encrypted Backup Is Enabled
Querying Incremental Backups
Configuring a Cross-Region Backup Policy
Restoring Tables to a Specified Point in Time
Querying Tables for Table-level Point-in-Time Recovery
Parameter Template Management
Querying Parameter Templates
Creating a Parameter Template
Deleting a Parameter Template
Obtaining Details About a Parameter Template
Modifying Parameters in a Parameter Template
Applying a Parameter Template
Replicating a Parameter Template
Comparing Parameter Templates
Querying Instances That a Parameter Template Can Be Applied To
Viewing Parameter Change History
Obtaining Parameter Information of a Specified DB Instance
Modifying Parameters of a Specified DB Instance
Replicating the Parameter Template of a DB Instance
Querying Application Records of a Parameter Template
Quota Management
Querying the Instance Quotas of a Tenant
Querying the Resource Quotas of a Specified Enterprise Project
Configuring Resource Quotas for a Specified Enterprise Project
Modifying the Resource Quotas of a Specified Enterprise Project
Querying Enterprise Projects
Database Proxy
Creating a Proxy Instance
Deleting a Proxy Instance
Querying Proxy Instances
Querying Proxy Instance Specifications
Adding Proxy Nodes
Deleting Proxy Nodes
Changing Specifications of a Proxy Instance
Assigning Read Weights
Changing the Routing Policy of a Proxy Instance
Enabling or Disabling Transaction Splitting of a Proxy Instance
Enabling or Disabling Automatic Association of New Nodes with Proxy Instances
Changing Session Consistency of a Proxy Instance
Changing the Connection Pool Type of a Proxy Instance
Changing the Port of a Proxy Instance
Upgrading the Kernel Version of a Proxy Instance
Modifying the Name of a Proxy Instance
Querying Access Control Settings of a Proxy Instance
Querying the Minor Version of a Proxy Instance
Modifying Parameters of a Proxy Instance
Querying Kernel Parameters of a Proxy Instance
Enabling or Disabling Access Control
Configuring Access Control Rules
Enabling or Disabling SSL for a Proxy Instance
Rebooting a Proxy Instance
Log Management
Enabling or Disabling SQL Explorer
Querying Whether SQL Explorer Is Enabled
Querying Slow Query Logs
Querying Error Logs
Obtaining the Temporary Link for Downloading Full SQL
Querying LTS Configurations of an Instance
Deleting LTS Configurations in Batches
Creating LTS Configurations in Batches
Querying Whether Show Original Log Is Enabled
Enabling or Disabling Show Original Log
Tag Management
Querying Resource Tags
Querying Project Tags
Adding or Deleting Tags in Batches
Database User Management
Creating a Database Account
Querying Database Users
Deleting a Database User
Modifying Remarks of a Database User
Changing Password of a Database User
Granting Permissions to a Database User
Deleting Permissions of a Database User
Database Management
Querying Available Database Character Sets
Creating a Database
Modifying Database Remarks
Querying Databases
Deleting a Database
SQL Statement Concurrency Control
Enabling or Disabling SQL Statement Concurrency Control
Querying Whether SQL Statement Concurrency Control Is Enabled
Configuring Concurrency Control Rules of SQL Statements
Querying Concurrency Control Rules of SQL Statements
Deleting Concurrency Control Rules of SQL Statements
Task Center
Obtaining Information About a Task with a Specified ID
Obtaining Instant Tasks
Obtaining Scheduled Tasks
Canceling a Scheduled Task
Deleting a Task Record
Deleting a Scheduled Task Record
Intelligent Diagnosis
Querying Abnormal Instances by Each Metric
Querying Abnormal Instance Information by a Specific Metric
HTAP (Standard Edition)
Restoring a Data Synchronization Task for a StarRocks Instance
Stopping a Data Synchronization Task for a StarRocks Instance
Creating a StarRocks Instance
Querying a StarRocks Instance
Deleting a StarRocks Instance
Rebooting a StarRocks Instance
Rebooting a StarRocks Node
Checking StarRocks Resources
Querying HTAP Engine Resources
Obtaining the Storage Type of an HTAP Instance
Querying Specifications of an HTAP Instance
Querying HTAP Instances
Creating a Data Synchronization Task for a StarRocks Instance
Deleting a Data Synchronization Task for a StarRocks Instance
Querying Data Synchronization Tasks of a StarRocks Instance
Checking Database Configurations for HTAP Data Synchronization
Querying Configurations of a StarRocks Data Synchronization Task
Querying Database Parameter Settings for StarRocks Data Synchronization
Querying Databases of a StarRocks Instance
Querying Database Accounts
Creating a Database Account
Deleting a Database Account
Changing the Password of a Database Account
Changing Permissions of a Database Account
HTAP (Lightweight Edition)
Deleting a Database Account
Querying Node Information in Error Logs or Slow Query Logs
Querying Slow Query Logs
Enabling or Disabling Show Original Log
Querying Whether Show Original Log Is Enabled
Querying LTS Configurations of an Instance
Creating LTS Configurations in Batches
Deleting LTS Configurations in Batches
Checking Database Configurations for Data Synchronization
Checking Table Configurations for Data Synchronization
Querying Databases
Querying Data Synchronization Configurations
Querying Database Parameter Settings for Data Synchronization
Creating an Instance
Deleting an Instance
Querying Instance Details
Scaling Up Storage Space of an Instance
Rebooting an Instance
Creating a Database Account
Querying Database Accounts
Changing the Password of a Database Account
Changing Permissions of a Database Account
Creating a Data Synchronization Task
Querying Data Synchronization Information
Deleting a Data Synchronization Task
Modifying Data Synchronization Configurations
Stopping Modifying Data Synchronization Configurations
Changing Instance Specifications
APIs (Unavailable Soon)
DB Engine Version Queries
Querying Version Information About a DB Engine
Database Specification Queries
Querying Database Specifications
Instance Management
Creating a DB Instance
Querying DB Instances
Querying DB Instances
Deleting a DB Instance
Querying Details of a DB Instance
Querying Details of DB Instances in Batches
Querying Details of a DB Instance
Creating a Read Replica
Deleting a Read Replica
Scaling up Storage of a Yearly/Monthly DB Instance
Changing a DB Instance Name
Resetting a Database Password
Modifying DB Instance Specifications
Backup Management
Modifying the Automated Backup Policy
Creating a Manual Backup
Querying Backups
Querying an Automated Backup Policy
Parameter Template Management
Querying Parameter Templates
Quota Management
Querying the Instance Quotas of a Tenant
Querying Resource Quotas
Configuring Resource Quotas
Modifying Resource Quotas
Database Proxy
Creating Proxy Instance
Deleting a Proxy Instance
Querying Information About a Proxy Instance
Querying Proxy Instance Information
Querying Proxy Instance Specifications
Adding Proxy Nodes
Log Management
Querying Database Error Logs
Querying Database Error Logs
Querying Database Slow Logs
Querying Database Slow Logs
Task Information Queries
Obtaining Information About a Task
Permissions Policies and Supported Actions
Permissions Policies and Supported Actions
GaussDB(for MySQL) Actions
Appendix
Abnormal Request Results
Status Codes
Error Codes
Obtaining a Project ID
GaussDB(for MySQL) Monitoring Metrics
SDK Reference
SDK Overview
FAQs
Product Consulting
What Should I Pay Attention to When Using GaussDB(for MySQL)?
What Can I Do About Slow Responses of Websites When They Use GaussDB(for MySQL)?
Resource Freezing, Unfreezing, Release, Deletion, and Unsubscription
Database Connections
What Should I Do If I Can't Connect to My GaussDB(for MySQL) Instance?
What Should I Do If an ECS Can't Connect to a GaussDB(for MySQL) Instance?
Can an External Server Access a GaussDB(for MySQL) Instance?
What Is the Maximum Number of Connections to a GaussDB(for MySQL) Instance?
What Do I Do If the Number of GaussDB(for MySQL) Database Connections Reaches the Upper Limit?
Are There Any Potential Risks If There Are Too Many Connections to a GaussDB(for MySQL) Instance?
What Should I Do If the Network Connectivity Test Fails?
Can I Access a GaussDB(for MySQL) Instance over an Intranet Connection Across Regions?
How Do I Check the Connections to a GaussDB(for MySQL) Instance?
How Do I Enable Availability Detection for a Connection Pool in the Service Code?
Client Installation
How Can I Install the MySQL Client?
Database Migration
What Types of DB Engines Does GaussDB(for MySQL) Support for Importing Data?
Database Permissions
Does GaussDB(for MySQL) Provide the Root Account or Super Permissions?
Database Performance
What Should I Do If the CPU Usage of My GaussDB(for MySQL) Instance Is High?
How Do I Handle Slow SQL Statements Caused by Inappropriate Composite Index Settings?
How Do I Handle a Large Number of Temporary Tables Being Generated for Long Transactions and High Memory Usage?
What Should I Do If Locks on Long Transactions Block the Execution of Subsequent Transactions?
How Can I Use Temporary Disk of GaussDB(for MySQL)?
What Is the CPU Usage of a GaussDB(for MySQL) Instance with Empty Load?
Database Usage
Why Are the Results Inconsistent After the MATCH AGAINST Statement Is Executed, Respectively, on Primary Nods and Read Replicas?
How Do I Add Columns Using INSTANT?
How Do I Use LOAD DATA to Import Local Data?
How Do I Write Data to or Create Indexes for an Ultra-large Table?
What Are the Risks of Deleting an Index from an Ultra-large Table?
Backups
How Long Does GaussDB(for MySQL) Store Backup Data?
How Can I Check and Clear My GaussDB(for MySQL) Backup Space?
How Can I Back Up a GaussDB(for MySQL) Database to an ECS?
Why Has My Automated Backup Failed?
How Is GaussDB(for MySQL) Backup Data Billed?
Database Parameter Modification
How Do I Change the Time Zone of a GaussDB(for MySQL) Instance?
How Do I Configure a Password Expiration Policy for GaussDB(for MySQL) Instances?
How Do I Ensure that the Database Character Set of a GaussDB(for MySQL) Instance Is Correct?
How Do I Use the utf8mb4 Character Set to Store Emojis in a GaussDB(for MySQL) Instance?
How Do I Set Case Sensitivity for GaussDB(for MySQL) Table Names?
Can I Use SQL Commands to Modify Global Parameters of My GaussDB(for MySQL) Instance?
Network Security
How Can I Prevent Untrusted Source IP Addresses from Accessing GaussDB(for MySQL)?
How Can I Import the Root Certificate to a Windows or Linux Server?
Log Management
Can I Enable general_log for GaussDB(for MySQL)?
How Do I View All SQL Statements Executed by GaussDB(for MySQL)?
How Do I Enable and View Binlog of My GaussDB(for MySQL) Instance?
How Do I Change the Binlog Retention Period?
How Do I View Deadlock Logs of GaussDB(for MySQL)?
Version Upgrade
How Can I Check the Version of a GaussDB(for MySQL) Instance?
Troubleshooting
Backup and Restoration Issues
Insufficient Permissions During Data Export Using mysqldump
How Do I use mysqlbinlog to Obtain Binlog Files?
Canal Fails to Parse Binlogs
Precautions for Exporting Large Tables Through mysqldump
Commands for Exporting Data Through mysqldump
System Inaccessible After Field Addition to a Database Table
SQL Statements Such as SET @@SESSION.SQL_LOG_BIN Displayed After You Run mysqldump
Insufficient Permissions Reported for Canal
Connection Issues
Login Failed After ssl_type of root Is Changed to ANY
Failed to Connect to a DB Instance Using SSL
Description of Each IP Address
SSL Connection Failed Due to Inconsistent TLS Versions
Error Message "connection established slowly"
"Access denied" Displayed During Database Connection
Failed to Connect to a Database Using mariadb-connector in SSL Mode
Failed to Connect to a Database as User root
Client Automatically Disconnected from a DB Instance
Disconnection Occurs Every 45 Days Due to the istio-citadel Certificate Mechanism
SQL Issues
Invalid TIMESTAMP Default Value during Table Creation
Failed to Change the VARCHAR Length Due to the Index Length Limit
Slow SQL Queries After a Large Amount of Data Is Deleted from a Large Table
Error 1366 Reported When Data Containing Emojis Is Updated
Slow Stored Procedure Execution Due to Inconsistent Collations
ERROR [1412] Reported for a DB Instance
Failed to Delete a Table with a Foreign Key
Incorrect GROUP_CONCAT Results
Error Message "Too many keys specified" Displayed When a Secondary Index Is Created
DISTINCT and GROUP BY Optimization
Equivalent Comparison Failures with Floating-Point Numbers
A Large Number of SELECT Requests Routed to The Primary Instance After Database Proxy Is Enabled
Tablespace Bloat
ERROR 1396 Reported When a User Is Created
Error Message Reported When alter table xxx discard/import tablespace Is Executed
Native Error 1461 Reported by a DB Instance
"Row size too large" Reported When a Table Failed to Be Created
Duplicate Data Exists After ORDER BY LIMIT Is Executed
Parameter-related Issues
Global Parameters Fail to Change on the Client
Connection Exit Due to Improper Timeout Parameter Settings
long_query_time Changes Fail to Take Effect
Timeout Parameters
Performance Issues
High CPU Usage
Out of Memory (OOM) Errors
Tablespace Bloat
Read Replica Uses Far More Storage Than the Primary Instance
Slow SQL Execution Due to Hot and Cold Data Problems
Full Storage Caused by Complex Queries
Slow Response Due to Deadlocks
CPU Usage Increase
CPU Resource Exhaustion Caused by Too Many Concurrent Slow Queries
Basic Issues
How Do I View Used Storage of My GaussDB(for MySQL) Instance?
Renaming Databases and Tables
Character Set and Collation Settings
Auto-Increment Field Value Jump
Starting Value and Increment of AUTO_INCREMENT
Changing the AUTO_INCREMENT Value of a Table
Failed to Insert Data Because Values for the Auto-increment Primary Key Field Reach the Upper Limit
Auto-increment Field Values
AUTO_INCREMENT Not Displayed in the Table Structure
Impact of Creating an Empty Username
No Scanned Rows Recorded in Slow Query Logs
"handle_sync_msg_from_slave my_net_read error:-1" Displayed on the Error Logs Tab Page
Videos
General Reference
Glossary
Service Level Agreement
White Papers
Endpoints
Permissions