Release Notes
Announcements
Parameter | Required | Description |
Billing Modes | Yes | |
Region | Yes | Select a region where your instance resides. You should select a region closest to you to reduce access latency. Note that the region cannot be changed after the instance is successfully created. We recommend that you select the same region as the CVM instance for private network communication. |
AZ | Yes | Enable Multi-AZ Deployment as needed. Multi-AZ deployment refers to deploying an instance across different AZs in the same region. Compared with single-AZ deployment, it has a higher availability and disaster recovery capability. If your instance is deployed in the same AZ, select an AZ for the primary node from the drop-down list next to Primary Node. If your instance is deployed across different AZs, select an AZ for the primary node from the drop-down list next to Primary Node and specify the AZ for each secondary node in each drop-down list next to Secondary Node n (n=1,2,3,4,5,6). If the read-only node count is configured, configure the AZ for each read-only node. |
Specification Type | Yes | Select the specification type for the database instance. For more information, see Cluster Architecture. General Edition: A long-term stable database service, deployed on high-performance servers with ample bandwidth, where resources are isolated and allocated to different instances. It provides high-performance, high-reliability, and easy-to-manage MongoDB managed services. Cloud Edition: A cloud-native architecture database service built on various cloud services such as CVM and CBS. It fully integrates Tencent Cloud’s underlying cloud service capabilities, allowing for quick adjustments to compute specifications and fast backup and restoration through cloud snapshots, providing greater flexibility and convenience for users. |
Database Version | Yes | General Edition (High IO 10G Type): 8.0, 7.0, 6.0, 5.0, 4.4, 4.2, and 4.0. Cloud Edition: 6.0, 5.0, 4.4, 4.2, and 4.0 After an instance is purchased, version upgrades are supported. For specific steps, see Version Upgrade. |
Architecture Type | Yes | Select a system architecture for the instance cluster. Options: Replica Set and Sharded Cluster. You need to understand the use cases of different architectures and select an appropriate one based on the actual data volume of your business. For more information, see System Architecture. Currently, architecture upgrade isn't supported. |
Storage engine | Yes | The default storage engine is WiredTiger. |
Mongod Specs | Yes | Select the computing specification of the instance from the drop-down list. The higher the specification, the higher the IOPS. For supported specifications, see Product Specifications. After creating an instance, you can adjust its computing specification. For detailed directions, see Adjusting Instance Specification. |
Mongod Shard Count | Yes | This parameter will be displayed if you select Sharded Cluster as the Architecture Type. It is used to set the mongod shard quantity in a sharded cluster instance, and its value range is [2,36]. Each shard is a replica set. The more the shards, the larger the cluster storage capacity. You can select a shard quantity as needed. After creating an instance, you can adjust the mongod shard quantity. For detailed directions, see Adjusting Instance Specification. |
Disk Capacity | Yes | Select the storage capacity of the instance on the slider. The range of the disk capacity varies by mongod specification. For more information, see Product Specifications. The default oplog storage space is 10% of the selected storage capacity. You can adjust the oplog capacity in the instance list in the console. For detailed directions, see Adjusting Oplog Capacity. After creating an instance, you can adjust its disk capacity. For detailed directions, see Adjusting Instance Specification. |
Primary and Secondary Nodes Count | Yes | This parameter will be displayed if you select Replica Set as the Architecture Type. It is one-primary-two-secondary architecture with three storage nodes by default. Currently, you cannot customize the number of secondary nodes. You can select five (one-primary-four-secondary) or seven (one-primary-six-secondary) nodes from the drop-down list. After creating the instance, you can add more secondary nodes per shard. For detailed directions, see Adding Secondary Node. |
Primary and Secondary Nodes Count per shard | Yes | This parameter will be displayed if you select Sharded Cluster as the Architecture Type. It is used to set the number of nodes per shard in a sharded cluster instance. The system adopts a one-primary-two-secondary architecture with three nodes by default, that is, each shard has three nodes in a one-primary-two-secondary architecture. You can select five (one-primary-four-secondary) or seven (one-primary-six-secondary) nodes from the drop-down list. Currently, you cannot customize the number of nodes. After creating the instance, you can add more secondary nodes per shard. For detailed directions, see Adding Secondary Node. |
Read-Only Node Count | Yes | The number of read-only nodes. You can configure 0 or 1–5 read-only nodes. Only versions 7.0, 6.0, 5.0, 4.0, 4.2, and 4.4 support configuring the number of read-only nodes; version 3.6 does not support this feature. After creating the instance, you can add more read-only nodes. For detailed directions, see Adding Read-Only Node. |
Specs Description | - | This parameter calculates the maximum number of connections to the instance based on the configured mongod specification to help you determine whether the current specification meets the expectation. |
Mongos Specs | Yes | This parameter will be displayed if you select Sharded Cluster as the Architecture Type. It is used to configure mongos specification. After you configure the mongod specification, the corresponding mongos specification will be selected by default. For example, if you select 2-core 4 GB MEM for mongod, the mongos specification will be configured as 1-core 2 GB MEM by default. After the mongos specification is upgraded, fees will be charged based on the new specification. For more information, see MongoDB Pricing. The number of connections to the sharded cluster instance is subject to the selected mongos node specification and quantity. You can view the maximum number of connections of the instance in Specs Description. After creating the instance, you can adjust the mongos specification. For detailed directions, see Adjusting Mongos Node Specification. |
Mongos Nodes Count | Yes | This parameter will be displayed if you select Sharded Cluster as the Architecture Type. It is used to set mongos node quantity. If the instance is deployed in the same AZ, it can contain 3–32 mongos nodes. If you select Multi-AZ Deployment to deploy the instance across different AZs, the instance can contain 6–36 mongos nodes. Adding more Mongos instances will result in additional charges. For more information, see MongoDB Pricing. After creating the instance, you can adjust the mongos node quantity. For detailed directions, see Adding Mongos Node. |
Network Type | - | Only VPC is supported. |
IPv4 Network | Yes | Select a specific VPC and subnet. You can use a CVM instance to connect to the automatically assigned private network address of a TencentDB instance. This method utilizes the high-speed private network of Tencent Cloud and features low delay. Note that both instances must be under the same account in the same VPC in the same region. For more information, see Connecting to TencentDB for MongoDB Instance. VPCs are region-specific (e.g., Guangzhou), while subnets are AZ-specific (e.g., Guangzhou Zone 1). One VPC can be divided into one or multiple subnets, which are interconnected over the private network by default. Different VPCs are isolated over the private network by default, no matter whether they are in the same or different regions. You can switch the VPC after instance purchase as instructed in Configuring Network. You can also click Create VPCs and Create Subnets to create a required network environment. For detailed directions, see Creating VPC. |
IPv6 Network | - | IPv6 address access is currently not supported in the current region and subnet. |
Security Group | Yes | Set security group rules to control the inbound traffic to your database. You can either select a security group from the Existing Security Groups drop-down list or click Custom Security Groups to create one and set new inbound rules. For more information, see Security Group. |
Set Project | Yes | Assign your instance to a project for easy management. |
Tags | No | Add tags to your instance for easy classification and management. Click Add to select tag keys and values. |
Parameter Template | Yes | The parameter template ID. A parameter template is a collection of preset parameter values for MongoDB. A set of parameters and values with similar requirements can be saved as a template, which can then be directly applied to a new instance when creating it. The system automatically sets a default parameter template for each version. When you purchase an instance and select the database version, the corresponding default parameter template will be automatically selected. You can choose a newly defined parameter template from the drop-down list. For more information, see Creating Parameter Template. |
Instance Name | Yes | Set the instance name. The default name is 500.You can enter up to 60 letters, digits, hyphens, and underscores. |
Set Password | Yes | Set the password authentication mode of the instance. Password Authentication: You need to set an instance password for database access. For more information, see Connecting to TencentDB for MongoDB Instance. Password-Free Access: You don't need to set a password. For more information, see Accessing Instance Without Authentication. |
Password | No | This parameter will be displayed if you select Password Authentication. It is used to set the access password of the instance. Password requirements: Minimum of 8 characters, maximum of 32 characters. A combination of uppercase letters A-Z, lowercase letters a-z, and numbers 0-9. Symbols: !@#%^*()_. Do not use all letters or all numbers. |
Confirm Password | No | Enter your password again. |
Purchase Quantity | Yes | The maximum quota in pay-as-you-go mode in each region is 30. |
Total Fees | Yes | Hourly fees will be displayed if you select Pay as You Go. For more information, see MongoDB Pricing. |
API Name | API Feature |
Create a TencentDB instance (pay-as-you-go). |
Was this page helpful?
You can also Contact sales or Submit a Ticket for help.
Help us improve! Rate your documentation experience in 5 mins.
Feedback