GeminiDB
GeminiDB

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      • What's New
      • Function Overview
      • Product Bulletin
        • Vulnerability Notice
          • Vulnerability Fixing Policies
        • Version Description
          • Version Information
            • GeminiDB Redis API
            • GeminiDB Cassandra Version Information
          • Release Notes
            • Kernel Versions of GeminiDB Redis API
      • Service Overview
        • What Is GeminiDB?
        • System Architecture
        • Highlights
        • Typical Application Scenarios
        • Security
          • Shared Responsibilities
          • Identity Authentication and Access Control
          • Data Protection
          • Audit
          • Resilience
          • Risk Monitoring
          • Fault Recovery
        • Billing
        • Permissions
        • User Permissions
        • Regions and AZs
        • Related Services
        • Logging In to the GeminiDB Console
        • Change History
      • GeminiDB Redis API
        • Service Overview
          • What Is GeminiDB Redis API?
          • Highlights
          • Application Scenarios
          • Compatible APIs and Versions
          • Instance Specifications
          • Instance Statuses
        • Getting Started with GeminiDB Redis API
          • Getting to Know GeminiDB Redis API
          • Buying and Connecting to a Cluster Instance
        • Working with GeminiDB Redis API
          • Permission Management
            • Creating a User and Granting GeminiDB Redis API Permissions
            • Custom Policies of GeminiDB Redis API
          • Billing Management
            • Renewing Instances
            • Changing Pay-per-Use to Yearly/Monthly
            • Changing Yearly/Monthly to Pay-per-Use
            • Unsubscribing from a Yearly/Monthly Instance
          • Buying a GeminiDB Redis Instance
            • Buying a GeminiDB Redis Cluster Instance
          • Instance Connection and Management
            • Connection Methods
            • Connecting to a GeminiDB Redis Instance on the DAS Console
            • Connecting to a GeminiDB Redis Instance Over a Private Network
              • Connecting to an Instance Using a Load Balancer Address (Recommended)
              • Connecting to an Instance Using a Private Domain Name
              • Connecting to an Instance Using a Private IP Address
            • Connecting to a GeminiDB Redis Instance Over a Public Network
              • Connecting to an Instance Using an EIP
              • Connecting to an Instance Using a Public Domain Name
            • Connection Information Management
              • Configuring Security Group Rules for a GeminiDB Redis Instance
              • Viewing the IP Address and Port Number of a GeminiDB Redis Instance
              • Binding an EIP to a GeminiDB Redis Instance
              • Encrypting Data over SSL for a GeminiDB Redis Instance
              • Connecting a GeminiDB Redis Instance over SSL
              • Changing the Security Group of a GeminiDB Redis Instance
              • Configuring Private Network Access to a GeminiDB Redis Instance
          • Data Migration
            • Overview of the Redis Data Migration Solution
            • Migrating the Alibaba Cloud Database Redis/Tair To GeminiDB Redis
            • Migrating Data from Redis to GeminiDB Redis API Using Redis-Shake
            • (Recommended) Importing Data to Restore RDB Files to a GeminiDB Redis Instance
            • From Kvrocks to GeminiDB Redis API
            • From Pika to GeminiDB Redis API
            • From SSDB to GeminiDB Redis API
            • From LevelDB to GeminiDB Redis API
            • From Kvrocks to GeminiDB Redis API
            • Migration from an AWS ElastiCache for Redis Database to a GeminiDB Redis Instance
            • Verifying Redis Data Consistency After Migration
          • Instance Lifecycle Management
            • Restarting a GeminiDB Redis instance
            • Exporting Instance Information
            • Deleting a Pay-per-Use Instance
            • Recycling an Instance
          • Modifying Instance Settings
            • Modifying a GeminiDB Redis Instance Name
            • Changing the Administrator Password of a GeminiDB Redis Database
            • Changing the CPU and Memory Specifications of an Instance
            • Adding Instance Nodes
            • Deleting Instance Nodes
            • Manually Scaling Up Storage Space
          • Data Backup
            • Overview
            • Managing Automated Backups
            • Managing Manual Backups
          • Data Restoration
            • Restoration Methods
            • Restoring Data to a New Instance
          • CTS Audit
            • Key Operations Supported by CTS
            • Querying Traces
          • Viewing Metrics and Configuring Alarms
            • GeminiDB Redis Instance Metrics
            • Configuring Alarm Rules
            • Viewing Metrics
            • Configuring a Dashboard for a GeminiDB Redis Instance
          • Tag Management
          • MySQL Memory Acceleration
            • Memory Acceleration Overview
            • Enabling and Using Memory Acceleration
            • Modifying and Deleting a Memory Acceleration Rule
            • Viewing and Removing Mappings
        • FAQs
          • Most Asked Questions
          • About GeminiDB Redis API
            • What Are the Differences Between GeminiDB Redis API, Open-Source Redis, and Other Open-Source Redis Cloud Services?
            • How Is the Performance of GeminiDB Redis API Compared with Open-Source Redis?
            • What Redis Versions and Commands Are Compatible with GeminiDB Redis API? Whether Application Code Needs to Be Refactored for Connecting to a Redis Client?
            • Can Data Be Migrated from Open-Source Redis to GeminiDB Redis API? What Are the Precautions?
            • What Is the Availability of a GeminiDB Redis Instance?
            • Are Total Memory and Total Capacity of a GeminiDB Redis Instance the Same? What Is the Relationship Between Memory and Capacity?
            • How Do I Select Proper Node Specifications and Node Quantity When Purchasing a GeminiDB Redis Instance?
            • How Does GeminiDB Redis API Persist Data? Will Data Be Lost?
            • What Is the Memory Eviction Policy of GeminiDB Redis API?
            • Does GeminiDB Redis API Support Modules Such as a Bloom Filter?
          • Billing
            • What Are the Differences Between Yearly/Monthly and Pay-per-use Billing Mode?
            • Can I Switch Between Yearly/Monthly and Pay-per-Use Payments?
          • Database Usage
            • Why Is the Key Not Returned Using Scan Match?
            • How Do I Process Existing Data Shards After Migrating Workloads to GeminiDB Redis API?
            • Does GeminiDB Redis API Support Fuzzy Queries Using KEYS?
            • Does the GeminiDB Redis API Support Multiple Databases?
            • Why the Values Returned by Scan Operations Are Different Between GeminiDB Redis API and Open-Source Redis 5.0?
            • Why Are Error Messages Returned by Some Invalid Commands Different Between GeminiDB Redis API and Open-Source Redis 5.0?
            • How Do I Resolve the Error "CROSSSLOT Keys in request don't hash to the same slot"?
            • How Many Commands Can Be Contained in a GeminiDB Redis Transaction?
            • Which Commands Require Hashtags on GeminiDB Redis Cluster Instances?
            • What Should I Do If "ERR unknown command sentinel" Is Displayed?
            • How Long Does It Take to Add GeminiDB Redis Nodes at the Same Time? What Are the Impacts on Services?
            • What Are the Differences Between Online and Offline Specification Changes of GeminiDB Redis Nodes? How Long Will the Changes Take? What Are the Impacts on Services?
            • Can I Download Backups of a GeminiDB Redis Instance to a Local PC and Restore Data Offline?
            • What Is the Data Backup Mechanism of GeminiDB Redis API? What Are the Impacts on Services?
            • Why Does the CPU Usage Remain High Despite Low Service Access Volume on a GeminiDB Redis Preferential Instance with 1 CPU and 2 Nodes?
            • Why Does the Number of Keys Decrease and Then Become Normal on the Monitoring Panel on the GUI of GeminiDB Redis API?
            • Why Is CPU Usage of GeminiDB Redis Nodes Occasionally High?
            • When Does a GeminiDB Redis Instance Become Read-Only?
          • Database Connection
            • How Do I Connect to a GeminiDB Redis Instance?
            • How Do I Use Multiple Node IP Addresses Provided by GeminiDB Redis API?
            • How Does Load Balancing Work in GeminiDB Redis API?
            • How Can I Create and Connect to an ECS?
            • Can I Change the VPC of a GeminiDB Redis Instance?
            • How Do I Access a GeminiDB Redis Instance from a Private Network?
            • Do I Need to Enable Private Network Access Control for a Load Balancer After Setting a Security Group?
          • Backup and Restoration
            • How Long Can a GeminiDB Redis Instance Backup Be Saved?
          • Memory Acceleration
            • Will All Data Be Cached to GeminiDB Redis Instances After Memory Acceleration Is Enabled and MySQL Database Data Is Updated?
            • If Memory Acceleration Is Enabled, GeminiDB Redis Instance Data Increases Continuously. Do I Need to Scale Out the Capacity? How Do I Manage Cached Data?
            • Is Memory Acceleration Recommended When Customers' Service Data Can Be Synchronized Between MySQL and Redis? In Which Scenarios Can Memory Acceleration Be enabled?
            • How Long Is the Latency of Synchronization from RDS for MySQL to GeminiDB Redis API? What Factors Affect the Latency?
            • Will the Source MySQL Database Be Affected After Memory Acceleration Is Enabled?
            • GeminiDB Redis Instances with Memory Acceleration Enabled Needs to Process a Large Number of Binlogs in a Short Period of Time. Will a Large Number of Resources Be Occupied and Online Services Be Affected?
          • Instance Freezing, Release, Deletion, and Unsubscription
      • GeminiDB Influx API
        • Service Overview
          • What Is GeminiDB Influx API?
          • Compatible APIs and Versions
          • Instance Specifications
          • DB Instance Statuses
          • Usage Specifications and Suggestions
        • Getting Started with GeminiDB Influx API
          • Getting Started with GeminiDB Influx API
          • Buying and Connecting to a Cluster Instance
        • Working with GeminiDB Influx API
          • Permissions Management
            • Creating a User Group and Assigning Permissions
            • Custom Policies
          • Buying a GeminiDB Influx Instance
            • Buying a GeminiDB Influx Cluster Instance
          • Instance Connection and Management
            • Connection Methods
            • Connecting to a GeminiDB Influx Instance on the DAS Console
            • Connecting to a GeminiDB Influx Instance over a Private Network
              • Connecting to an Instance Using a Load Balancer Address (Recommended)
              • Connecting to an Instance Using a Private IP Address
            • Connecting to a GeminiDB Influx Instance over a Public Network
            • Connecting to a GeminiDB Influx Instance Using Programming Languages
              • Connecting to a GeminiDB Influx Instance Using Go
              • Connecting to a GeminiDB Influx Instance Using Java
              • Connecting to a GeminiDB Influx Instance Using Python
            • Connection Information Management
              • Setting Security Group Rules for a GeminiDB Influx Instance
              • Binding an EIP
              • Changing the Security Group of a GeminiDB Influx Instance
              • Encrypting Data over SSL for a GeminiDB Influx Instance
          • Migrating Data
          • Instance Lifecycle Management
            • Restarting a GeminiDB Influx Instance
            • Deleting a Pay-per-Use Instance
            • Recycling an Instance
          • Instance Modifications
            • Changing a GeminiDB Influx Instance Name
            • Changing the Administrator Password of a GeminiDB Influx Database
            • Changing CPUs and Memory of an Instance
            • Adding Instance Nodes
            • Manually Scaling Up Storage Space of a GeminiDB Influx Instance
          • Database Commands
            • Supported Commands
          • Cold and Hot Data Separation
            • Enabling Cold Storage
            • Cold and Hot Data Separation
            • Scaling Up Cold Storage
          • Data Backup
            • Overview
            • Managing Automated Backups
            • Managing Manual Backups
          • Data Restoration
            • Restoration Methods
            • Restoring Data to a New Instance
          • Parameter Management
            • Modifying Parameters of GeminiDB Influx Instances
            • Creating 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 a Parameter Template Description
            • Deleting a Parameter Template
          • CTS
            • Key Operations Supported by CTS
            • Querying Traces
          • Viewing Metrics and Configuring Alarms
            • GeminiDB Influx Metrics
            • Configuring Alarm Rules
            • Viewing Metrics
          • Billing Management
            • Renewing Instances
            • Changing Pay-per-Use to Yearly/Monthly
            • Changing Yearly/Monthly to Pay-per-Use
            • Unsubscribing from a Yearly/Monthly Instance
          • Managing Tags
        • FAQs
          • Product Consulting
            • What Do I Need to Note When Using GeminiDB Influx API?
            • What Does the Availability of GeminiDB Influx Instances Mean?
            • Can GeminiDB Influx API Convert Multiple Columns to Multiple Rows?
            • How Much Data Can a GeminiDB Influx Instance Hold?
            • Can I Access GeminiDB Influx Instances Using Grafana?
            • How Do I Use GeminiDB Influx Hints?
            • What Do I Do If Error "select *" query without time range is not allowed Is Reported?
          • Billing
            • What Are the Differences Between Yearly/Monthly and Pay-per-use Billing Mode?
            • Can I Switch Between Yearly/Monthly and Pay-per-Use Payments?
          • Database Connection
            • How Can I Create and Connect to an ECS?
            • Can I Change the VPC of a GeminiDB Influx Instance?
            • How Do I Connect to a GeminiDB Influx Instance Locally?
            • How Do I Connect to a GeminiDB Influx Instance Using Grafana?
          • Backup and Restoration
            • How Long Can a GeminiDB Influx Instance Backup Be Saved?
          • Regions and AZs
            • Can Different AZs Communicate with Each Other?
            • Can I Change the Region of a GeminiDB Influx Instance?
          • Instance Freezing, Release, Deletion, and Unsubscription
      • GeminiDB Cassandra API
        • Service Overview
          • What Is GeminiDB Cassandra API?
          • Compatible APIs and Versions
          • Instance Specifications
          • Instance Statuses
          • Database Constraints
            • Basic Design
            • Database Objects
            • Access and Connection Pools
            • Batches
            • Queries
        • Getting Started with GeminiDB Cassandra API
          • Getting Started with GeminiDB Cassandra API
          • Buying and Connecting to an Instance
        • Working with GeminiDB Cassandra API
          • Permissions Management
            • Creating a User and Assigning Permissions
            • Creating a Custom Policy
          • Buying a GeminiDB Cassandra Instance
          • Instance Connection and Management
            • Connection Methods
            • Connecting to a GeminiDB Cassandra Instance on the DAS Console
            • Connecting to a GeminiDB Cassandra Instance over a Private Network
            • Connecting to a GeminiDB Cassandra Instance over a Public Network
            • Connecting to a GeminiDB Cassandra Instance Using Java
            • Connecting to a GeminiDB Cassandra Instance Using Go
            • Connection Information Management
              • Setting Security Group Rules for a GeminiDB Cassandra Instance
              • Binding an EIP to a GeminiDB Cassandra Instance
              • Viewing the IP Address and Port Number of a GeminiDB Cassandra Instance
          • Importing and Exporting Data by Running COPY
          • Instance Lifecycle Management
            • Restarting Instances
            • Deleting Instance
            • Recycling an Instance
          • Instance Modifications
            • Changing an Instance Name
            • Resetting the Administrator Password
            • Changing CPUs and Memory of an Instance
            • Adding and Deleting Instance Nodes
              • Overview
              • Adding Instance Nodes
              • Manually Deleting Instance Nodes
            • Scaling Storage Space
              • Overview
              • Manually Scaling Up Storage Space
              • Automatically Scaling Up Storage Space
          • Intra-region DR
            • Creating a DR Instance
            • Deleting the DR Relationship
          • Cross-region Dual-active DR
            • Overview
            • Creating a Dual-Active Relationship
            • Deleting a Dual-active Relationship
          • Data Backup
            • Overview
            • Managing Automated Backups
            • Managing Manual Backups
            • Managing Cross-Region Backups
          • Data Restoration
            • Restoration Methods
            • Restoring Data to a New Instance
            • Restoring a Backup to a Specific Point in Time
          • Parameter Management
            • Modifying Parameters of GeminiDB Cassandra Instances
            • Creating 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 a Parameter Template Description
            • Deleting a Parameter Template
          • CTS
            • Key Operations Supported by CTS
            • Querying Traces
          • Viewing Metrics and Configuring Alarms
            • GeminiDB Cassandra Instance Metrics
            • Configuring Alarm Rules
            • Viewing Metrics
          • Enterprise Project
            • Overview
            • Managing Quotas
          • Billing Management
            • Renewing Instances
            • Changing Pay-per-Use to Yearly/Monthly
            • Changing Yearly/Monthly to Pay-per-Use
            • Unsubscribing from a Yearly/Monthly Instance
          • Managing GeminiDB Cassandra Instance Tags
        • FAQs
          • Product Consulting
            • What Should I Pay Attention to When Using GeminiDB Cassandra API?
            • What Is GeminiDB Cassandra Instance Availability?
          • Billing
            • What Are the Differences Between Yearly/Monthly and Pay-per-use Billing Mode?
            • Can I Switch Between Yearly/Monthly and Pay-per-Use Payments?
          • Database Usage
            • Why Does the Overall Instance Performance Deteriorate When QPS Increases After the Batch Size Is Decreased?
            • What Can I Do if Error "field larger than field limit (131072)" Is Reported During Data Import?
            • What Should I Pay Attention to When Creating a GeminiDB Cassandra Table?
            • How Do I Detect and Resolve BigKey and HotKey Issues?
            • How Do I Set Up a Materialized View?
            • How Do I Use a Secondary Index?
            • How Do I Set Paging Query with Java?
          • Database Connection
            • What Can I Do If Spark Failed to Connect to Cassandra?
            • What Can I Do If an Error Occurs When I Use Java Driver and a Mapped IP Address to Connect to a Database?
            • How Can I Create and Connect to an ECS?
            • Can I Change the VPC of a GeminiDB Cassandra Instance?
          • Backup and Restoration
            • How Long Does GeminiDB Cassandra Store Backup Data?
          • Instance Freezing, Release, Deletion, and Unsubscription
        • GeminiDB (DynamoDB API Compatible) Instance
          • What Is GeminiDB (DynamoDB API Compatible)?
          • Connecting to a GeminiDB (DynamoDB API Compatible) Instance
          • API Compatibility
          • Migration from DynamoDB to GeminiDB (DynamoDB API Compatible)
      • API Reference
        • Before You Start
          • Overview
          • API Calling
          • Endpoints
          • Constraints
          • Concepts
        • API Overview
        • Calling APIs
          • Making an API Request
          • Authentication
          • Returned Values
        • Quick Start
        • APIs v3
          • API Versions
            • Querying API Versions
            • Querying Version Information of an API
          • Versions and Specifications
            • Querying Version Information
            • Querying Instance Specifications
          • Instances
            • Creating an Instance
            • Deleting an Instance
            • Querying Instances and Details
            • Scaling Up Storage Space of an Instance
            • Adding Nodes for an Instance
            • Deleting Nodes from a Specified Instance
            • Obtaining Sessions of a Node
            • Querying Session Statistics of an Instance Node
            • Closing Sessions of an Instance Node
            • Changing Specifications of an Instance
            • Resetting the Administrator Password of an Instance
            • Editing the Name of an Instance
            • Changing the Security Group of an Instance
            • Upgrading Minor Version
          • Backups and Restorations
            • Querying Backups
            • Querying an Automated Backup Policy
            • Configuring an Automated Backup Policy
            • Querying the Recycling Policy
            • Modifying the Recycling Policy
            • Querying Instances in the Recycle Bin
          • Parameter Templates
            • Obtaining Parameter Templates
            • Creating a Parameter Template
            • Modifying Parameters in a Parameter Template
            • Applying a Parameter Template
            • Modifying Parameters of a Specified Instance
            • Querying Instance Parameter Settings
            • Obtaining Parameters of a Specified Parameter Template
            • Deleting a Parameter Template
          • Tags
            • Querying an Instance by Tag
            • Adding or Deleting Resource Tags in Batches
            • Querying Tags of an Instance
          • Quotas
            • Querying Quota
          • Disaster Recovery
            • Checking Whether a DR Relationship Can Be Created with or Deleted from a Specified Instance
            • Creating a DR Relationship with a Specified Instance
            • Deleting a DR Relationship from a Specific Instance
        • API v3 (Unavailable Soon)
          • Instance Specifications
          • Parameter Templates
            • Obtaining Parameter Templates
          • Tags
            • Querying an Instance by Tag
        • Permission Policies and Supported Actions
          • Introduction
          • GeminiDB Actions
        • Appendixes
          • Abnormal Request Results
          • Status Codes
          • Error Codes
          • Obtaining a Project ID
          • Metrics
          • Events Supported by Event Monitoring
        • Change History
      • SDK Reference
        • SDK Overview