- What's New
- Function Overview
- Product Bulletin
- Service Overview
-
GeminiDB Redis API
- Service Overview
- Billing
- Getting Started with GeminiDB Redis API
-
Working with GeminiDB Redis API
- Permission Management
- Buying a GeminiDB Redis 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 a GeminiDB Redis Instance Over a Public Network
-
Connection Information Management
- Configuring a Private Domain Name for a GeminiDB Redis Instance
- Configuring a Public Domain Name for a GeminiDB Redis Instance
- 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
- (Recommended) Using DRS to Migrate Data from a GeminiDB Redis Instance to an Open-Source Redis Instance
- Migrating the Alibaba Cloud Database Redis/Tair To GeminiDB Redis
- (Recommended) Using DRS to Migrate Data from Open-source Redis or Redis Cluster to GeminiDB Redis API
- Migrating Data from Open-source Redis to GeminiDB Redis API Using Redis-Shake
- Using Redis-Shake to Import an RDB or AOF File to a GeminiDB Redis Instance
- (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 Management
-
Modifying Instance Settings
- Upgrading a Minor Version
- Modifying a GeminiDB Redis Instance Name
- Changing the Administrator Password of a GeminiDB Redis Database
- Changing the CPU and Memory Specifications of an Instance
- Setting a Maintenance Window
- Scaling Instances
- Scaling Disk Space
- Performing a Primary/Standby Switchover for GeminiDB Redis Instances
- Data Backup
- Data Restoration
- Diagnosis Analysis
- Account and security
-
Parameter Management
- Modifying Parameters of GeminiDB Redis 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 the Description of a Parameter Template
- Deleting a Parameter Template
- Logs and Audit
- Viewing Metrics and Configuring Alarms
- Tag Management
- Quota
- MySQL Memory Acceleration
-
Development Reference
- Development and O&M Rules
- Compatible Commands
-
Examples of Connecting to an Instance Using Programming Languages
- Connecting to an Instance Using Jedis
- Connecting to an Instance Using Redisson
- Connecting to an Instance Using Hiredis
- Connecting to an Instance Using Node.js
- Connecting to an Instance Using PHP
- Connecting to an Instance Using Python
- Connecting to an Instance Using Go
- Connecting to an Instance Using C#
- Connecting to an Instance Using Sentinel
- Lua Script Compilation Specifications
- Keyspace Notification
- EXHASH Commands
- Large Bitmap Initialization
- Configuring Parameters for a Client Connection Pool
- Using Parallel SCAN to Accelerate Full Database Scanning
- Accessing a GeminiDB Redis Instance Using a Pipeline
- Processing Transactions on a GeminiDB Redis Instance
- Retry Mechanism for GeminiDB Redis Clients
- GeminiDB Redis API Pub/Sub
- Implementing Distributed Locks Using Lua Scripts for GeminiDB Redis API
- Best Practices
- Performance White Paper
-
FAQs
-
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 a Self-Built Redis Instance to a GeminiDB Redis Instance? 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?
- Is a Primary/Standby or Cluster Deployment Mode Preferred for GeminiDB Redis Instances with Several GB of Storage Space?
- 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
-
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 Hash Tags in GeminiDB Redis Cluster Instances?
- What Do I Do If the Error "ERR Unknown Command Sentinel" Is Displayed?
- Why Return Values of Blocking Commands Differ Between Primary/Standby GeminiDB Redis Instances and Open-Source Redis Instances?
- How Long Does It Take to Scale Up GeminiDB Redis Instance Storage? Will Services Be Affected?
- 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?
- What Are the Differences Between Online and Offline Patch Installation of GeminiDB Redis Nodes? How Long Will the Upgrades 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?
- How Do I Upgrade GeminiDB Redis API from 5.0 to 6.2?
- 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?
- Why Can't I Connect to the Instance After an EIP Is Bound to It?
- 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?
- What Should I Do If the Client Connection Pool Reports Error " Could not get a resource from the pool"?
- Common Client Errors and Troubleshooting Methods
- Backup and Restoration
- Regions and AZs
-
Data Migration
- What Do I Do if the GeminiDB Redis Link Cannot Be Found on DRS?
- What Do I Do if the Error "ERR the worker queue is full, and the request cannot be executed" Is Displayed?
- What Do I Do If the Error "ERR the request queue of io thread is full, and the request cannot be executed" Is Displayed?
- What Do I DO If the Error "read error, please check source redis log or network" Is Displayed?
- What Do I Do If the Error "slaveping_thread.cc-ThreadMain-90: error: Ping master error" Is Displayed?
- What Do I Do If the Forward Migration Speed of the Synchronization Status Is Too Slow?
- What Do i Do When the Forward Migration Speed of the Synchronization Status Is Too Fast, and the Error Message "ERR Server Reply Timeout, Some Responses May Lose, but Requests Have Been Executed" Is Displayed?
- Can Data Be Migrated from Self-Built Redis 4.0, 5.0, and 6.2 to GeminiDB Redis API?
- How Do I Migrate Data from Self-Built Primary/Standby and Cluster Redis Instances to GeminiDB Redis Instances?
- Why Cannot DRS Migrate Data from Third-Party Redis Such as ApsaraDB for Redis and TencentDB for Redis?
- Which of the Following Factors Need to Be Considered When Data Is Migrated from Self-Built Primary/Standby Redis Instances to a GeminiDB Redis cluster?
- Only 20% to 30% of 100 GB of Data Was Migrated to GeminiDB Redis. Is the Migration Incomplete?
-
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
-
About GeminiDB Redis API
-
GeminiDB Influx API
- Service Overview
- Billing
- Getting Started with GeminiDB Influx API
-
Working with GeminiDB Influx API
- Permissions Management
- Buying an Instance
- Connecting to an Instance
- Instance Lifecycle Management
- Instance Modifications
- Migrating Data
- Database Commands
- Cold and Hot Data Separation
- Certificate Management
- Data Backup
- Data Restoration
- Exporting Data
-
Parameter Template Management
- Creating a Parameter Template
- Modifying Parameters of GeminiDB Influx Instances
- 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
- Log Management
- Monitoring and Alarm Reporting
- CTS
- Managing Tags
- Quotas
- Best Practices
- Performance White Paper
-
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?
- What Do I Do If the Error Message "ERR: Max-select-series Limit Exceeded" Is Displayed?
- What Do I Do If "delete is forbidden" Is Reported?
- Billing
- Database Connection
- Backup and Restoration
- Regions and AZs
- Instance Freezing, Release, Deletion, and Unsubscription
-
Product Consulting
-
GeminiDB Cassandra API
- Service Overview
- Billing
- Getting Started with GeminiDB Cassandra API
-
Working with GeminiDB Cassandra API
- Permissions Management
- 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
- Connecting to a GeminiDB Cassandra Instance Using Spark
-
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
- Changing the Port of a GeminiDB Cassandra Instance
- Changing the Security Group of a GeminiDB Cassandra Instance
- Encrypting Data over SSL for a GeminiDB Cassandra Instance
- Downloading the SSL Certificate
- Data Migration
- Instance Lifecycle Management
- Instance Modifications
- Intra-region DR
- Cross-region Dual-active DR
- Data Backup
- Data Restoration
-
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
- Log and Audit
- Viewing Metrics and Configuring Alarms
- Enterprise Project
- Managing GeminiDB Cassandra Instance Tags
- Managing User Resource Quotas of a GeminiDB Cassandra Instance
- Best Practices
- Performance White Paper
-
FAQs
- Product Consulting
- Billing
-
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 Can I Use the Search Index of Lucene?
- How Do I Set Paging Query with Java?
- How Do I Set Paging Query with Python?
- Database Connection
- Backup and Restoration
- Regions and AZs
- Instance Freezing, Release, Deletion, and Unsubscription
- GeminiDB (DynamoDB API Compatible) Instance
- HBase-Compatible Instance
-
GeminiDB Mongo API
- Service Overview
- Billing
- Getting Started with GeminiDB Mongo API
-
Working with GeminiDB Mongo API
- Permissions Management
- Migrating Data
- Instance Lifecycle
- Instance Modifications
- Connections
- Database Commands
- Data Backup
- Data Restoration
-
Parameter Template Management
- Creating a Parameter Template
- Modifying Parameters of GeminiDB Mongo Instances
- 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
- Monitoring and Alarm Configuration
- Audit
- Log Management
- Billing Management
- Quotas
- Best Practices
- Performance White Paper
- FAQs
- Change History
- Technical White Paper
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Quick Start
-
APIs v3 (Recommended)
- API Versions
- Versions and 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
- Querying Instance Specifications That Can Be Changed
- 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
- Patching Databases in Batches
- Creating Cold Storage
- Scaling Up Cold Storage
- Binding/Unbinding an EIP
- Enabling or Disabling SSL
- Restarting an Instance
- Configuring an Autoscaling Policy for Storage Space
- Changing a Database Port
- Checking Password Strength
- Configuring Access to a Replica Set Across CIDR Blocks
- Deleting the Node that Fails to Be Added
- Querying IP Addresses Required for Creating an Instance or Adding Nodes
- Querying the Autoscaling Policy of Storage Space
- Scaling Storage Space of an Instance
- Querying High-Risk Commands
- Modifying High-Risk Commands
- Querying Hot Keys of a Redis Instance
- Disabling Commands for a Redis Instance
- Querying Disabled Commands for a Redis Instance
- Deleting Disabled Commands for a Redis Instance
- Setting the Maintenance Period of an Instance
- Performing a Primary/Standby Switchover
- Starting or Stopping a Node
- Querying Big Keys of a GeminiDB Redis Instance
- Querying the Password-Free Configuration of a GeminiDB Redis Instance
- Modifying the Password-Free Configuration of a GeminiDB Redis Instance
- Querying the Memory Mapping List and Details
- Creating a Memory Acceleration Rule
- Deleting a Memory Mapping
- Creating a Memory Mapping
- Modifying a Memory Acceleration Rule
- Querying Memory Mapping Rules and Details
- Deleting a Memory Acceleration Rule
- Enabling or Disabling Instance Data Export
- Enabling or Disabling Second-Level Monitoring
- Querying Configurations of Second-Level Monitoring
- Connection Management
-
Backups and Restorations
- Querying Backups
- Querying Backups (Recommended)
- Querying an Automated Backup Policy
- Configuring an Automated Backup Policy
- Querying Instances that Can Be Restored
- Querying the Time Window When a Backup Can Be Restored
- Creating a Manual Backup
- Deleting a Manual Backup
- Restoring Data to an Existing Instance
- Querying the Recycling Policy
- Modifying the Recycling Policy
- Querying Instances in the Recycle Bin
- Obtaining GeminiDB Cassandra Instance Database Information That Is Restored Using Tables
- Obtaining GeminiDB Cassandra Instance Table Information That Is Restored Using Tables
- Restoring the Current Redis Instance to a Point in Time
- Setting the Policy for Restoring Redis Data to a Specified Time Point
- Querying the Policy for Restoring Redis Data to a Specified Time Point
- Querying the Restoration Time Range of a Redis Instance
- Querying the Storage Space Used for Restoring a Redis Instance to a Specified Time Point
- Stopping a Backup
- Deleting Manual Backups in Batches
-
Parameter Templates
- Obtaining Parameter Templates
- Creating a Parameter Template
- Modifying Parameters in a Parameter Template
- Applying a Parameter Template
- Resetting a Custom Parameter Template
- Modifying Parameters of a Specified Instance
- Querying Instance Parameter Settings
- Obtaining Parameters of a Specified Parameter Template
- Deleting a Parameter Template
- Querying Instances that a Parameter Template Can Be Applied To
- Viewing Parameter Change History of an Instance
- Viewing Application Records of a Parameter Template
- Comparing Parameter Templates
- Replicating a Parameter Template
- Querying API that Support Parameter Templates
- Managing Databases and Accounts
- Tags
-
Logs
- Querying Database Slow Logs
- Querying Slow Query Logs of a GeminiDB Redis Instance
- Querying Slow Query Logs of a GeminiDB Influx Instance
- Querying Slow Query Logs of a GeminiDB Cassandra Instance
- Querying Slow Query Logs of a GeminiDB Mongo Instance
- Querying Database Error Logs
- Querying Error Logs of a GeminiDB Mongo Instance
- Setting the Desensitization Status of Slow Query Logs
- Querying the Desensitization Status of Slow Query Logs
- Associating Instances with an LTS Log Stream
- Disassociating Instances from an LTS Log Stream
- Querying LTS Log Configurations
- Quotas
- Disaster Recovery
- Task Management
- Enterprise Projects
- Instance Load Balancing Management
- API v3 (Unavailable Soon)
- Permission Policies and Supported Actions
- Appendixes
- SDK Reference
- Videos
- General Reference
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Buying and Connecting to an Instance
This section instructs you to buy a GeminiDB Cassandra instance on the GeminiDB console.
By default, each tenant can have 50 GeminiDB Cassandra instances. To request a higher quota, choose Service Tickets > Create Service Ticket in the upper right corner of the console and contact customer service.
- Step 1: Buying an Instance
- Step 2: Connecting to an Instance Through DAS
For details about other connection methods, see Connection Methods.
Prerequisites
- You have created a Huawei Cloud account.
Step 1: Buying an Instance
For details, see Buying a GeminiDB Cassandra Instance.
- Log in to the Huawei Cloud console.
- In the service list, choose Databases > GeminiDB Cassandra API.
- On the Instances page, click Buy DB Instance.
- On the displayed page, select a billing mode, configure instance parameters, and click Next.
The following parameters are for reference only. Select proper specifications as needed. Table 1 lists details about the parameters.Figure 1 Billing mode and basic information
Parameter
Example Value
Description
Billing Mode
Pay-per-use
Billing mode of an instance
- Yearly/Monthly: A prepaid billing mode in which you pay for resources before using it. Bills are settled based on the subscription period. The longer the subscription term, the bigger the discount. This mode is a good option for long-term stable services.
- Pay-per-use: A postpaid billing mode. Pay as you go and just pay for what you use. The DB instance usage is calculated by the second but billed every hour. This mode allows you to adjust resource usage easily. You neither need to prepare for resources in advance, nor end up with excessive or insufficient preset resources.
Region
Select CN-Hong Kong.
Region where a tenant is located
NOTICE:To reduce network latency, select a region nearest from which you will access the instance. Instances deployed in different regions cannot communicate with each other over a private network. After you buy an instance, you cannot change its region.
DB Instance Name
User-defined
The instance name:
- Can be the same as an existing instance name.
- Can contain 4 to 64 characters and must start with a letter. It is case-sensitive and allows only letters, digits, hyphens (-), and underscores (_). If the name contains Chinese characters, the length cannot exceed 64 bytes.
Compatible API
Cassandra
-
DB Instance Type
Cluster
-
DB Engine Version
3.11
3.11
AZ
AZ 1, AZ 2, and AZ 3
Availability zone where the instance is created. An AZ is a part of a region with its own independent power supplies and networks. AZs are physically isolated but can communicate with each other over a private network.
An instance can be deployed in one or three AZs.
- If you want to deploy an instance in a single AZ, select one AZ.
- If you want to deploy an instance across AZs for disaster recovery, select three AZs. Nodes of the instance are evenly distributed across the three AZs.
Figure 2 Specifications and storageParameter
Example Value
Description
Instance Specifications
2U8GB
Select appropriate specifications based on the CPU-memory ratio.
After an instance is created, you can change its specifications. For details, see Changing vCPUs and Memory of an Instance.
Nodes
3
Number of nodes that the instance is deployed on.
Currently, a maximum of 60 nodes are supported. To obtain more nodes, choose Service Tickets > Create Service Ticket in the upper right corner of the console and contact customer service.
After an instance is created, you can add nodes. For details, see Adding Instance Nodes.
Storage Space
500 GB
Instance storage space. The range depends on the instance specifications. For details, see Instance Specifications.
After an instance is created, you can scale up its storage if necessary. For details, see Scaling Disk Space.
Autoscaling
Toggled off
Autoscaling is toggled off by default.
You can toggle it on after an instance is created. For details, see Automatically Scaling Up Disk Space.
Disk Encryption
Disable
Disable is selected by default.
If you select Enable, your data will be encrypted on disks and stored in ciphertext after you create an instance. When you download encrypted objects, the ciphertext will be decrypted into plain text and then sent to you. Disk encryption can improve data security and may have slight impacts on database writes and reads.
Figure 3 Network configurationFigure 4 Database configurationParameter
Example Value
Description
VPC
default_vpc
Virtual private network where your instances are located. A VPC isolates networks for different services. You can select an existing VPC or create a VPC.
NOTE:
- After a GeminiDB Cassandra instance is created, its VPC cannot be changed.
- If you want to connect to an instance using an ECS over a private network, ensure that the GeminiDB Cassandra instance and the ECS are in the same VPC. If they are not, create a VPC peering connection between them.
Subnet
default_subnet
A subnet provides dedicated network resources that are logically isolated from other networks for security purposes.
Security Group
default
A security group controls access between your instance and other services. Ensure that the security group you selected allows your client to access the instance.
Administrator Password
Configured based on the password policy
Password of the administrator account. The password:
- Can include 8 to 32 characters.
- Can include uppercase letters, lowercase letters, digits, and any of the following special characters: ~!@#%^*-_=+?
- For security reasons, set a strong password. The system will verify the password strength.
Keep your password secure. The system cannot retrieve it if it is lost.
Parameter Template
Default-Cassandra-3.11
A template of parameters for creating an instance. The template contains API configuration values that are applied to one or more instances.
After an instance is created, you can modify its parameters for optimal performance. For details, see Modifying Parameters of GeminiDB Cassandra Instances.
Enterprise Project
default
This parameter is provided for enterprise users.
An enterprise project groups cloud resources, so you can manage resources and members by project. The default project is default.
Select an enterprise project from the drop-down list. For more information about enterprise projects, see Enterprise Management User Guide.
Retain the default values for other parameters.
- On the displayed page, confirm instance details. To modify the configurations, click Previous.
- If no modification is required, read and agree to the service agreement and click Submit.
- Click Back to Instance Management to go to the instance list.
- On the Instances page, view and manage the created instance.
- It takes about 5 to 9 minutes to create an instance. During the process, the instance status is Creating.
- After the creation is complete, the status changes to Available.
Figure 5 Available instance
Step 2: Connecting to an Instance Through DAS
DAS enables you to manage DB instances from a web-based console, simplifying database management and improving efficiency. You can connect and manage instances through DAS. By default, you have the permission of remote login. DAS is secure and convenient for connecting to DB instances.
Procedure
- Log in to the Huawei Cloud console.
- In the service list, choose Databases > GeminiDB Cassandra API.
- On the Instance Management page, locate the target DB instance and click Log In in the Operation column.
Figure 6 Logging in to the database
Alternatively, click the instance name on the Instances page. On the displayed Basic Information page, click Log In in the upper right corner.
Figure 7 Logging in to the database - On the displayed login page, enter the administrator username and password and click Log In.
For details about how to manage databases through DAS, see GeminiDB Cassandra Data Management.
FAQs
Question: What should I do if the DAS console cannot be redirected after I click Log In in the Operation column in the instance list or click Log In on the Basic Information page?
Solution: Set your browser to allow pop-ups and try again.
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