Cloud DB for MongoDB prerequisites

Cloud environment specifications

Cloud environment specifications supported by Cloud DB for MongoDB are described as follows:

Item	Supported specifications
Region (Zone)	Korea, Japan, Singapore
Classic	Not supported
VPC	Supported
Languages	Korean, English, and Japanese

Item

Supported specifications

Region (Zone)

Korea, Japan, Singapore

Classic

Not supported

VPC

Supported

Languages

Korean, English, and Japanese

Note

See Service Introduction in NAVER Cloud Platform portal if you want to know more about the VPC environment, and see Ncloud User Environment Guide if you want to know whether the VPC environment is supported by service.

Server specifications

For NAVER Cloud Platform's Cloud DB for MongoDB, you can flexibly select from various types of server type and use them according to your service size. For server specifications supported by Cloud DB for MongoDB, see Services > Database > Cloud DB for MongoDB in the portal.

Restrictions when changing server specifications

The type of an operational MongoDB Server that has been created and is in operation cannot be changed, but the available memory size can be changed at any time using the Change DB specifications feature in the console DB Server menu. For the upgrade method, see DB Server. However, a few restrictions exist when changing the server specifications. You need to fully understand these restrictions before changing the server specifications. The restrictions are as follows.

They can only be changed within the same type

They can only be changed to a larger cache memory size type (higher specifications) due to the in-memory characteristics

In a single DB service, the servers with the same cluster role are all changed to the same specifications

The server restarts upon completion of the change. Therefore, the service may possibly be affected

The cluster type may not be changed. Use the backup and recovery feature if you need to change the cluster type

The data continuity is guaranteed as the data in memory is saved to a disk when the server specifications are changed. However, once the server specifications change is complete, we recommend checking the data status using the dbsize command.

Server redundancy configuration

Cloud DB for MongoDB supports the high availability (HA) feature. Cloud DB for MongoDB creates a primary DB server and a secondary DB server. It provides a feature that automatically fails over to the secondary when the primary fails. According to the internal algorithm of MongoDB, a new primary server is selected among secondary servers. When creating the MongoDB server from NAVER Cloud Platform console, you can select the cluster type. The server configuration will then change according to the selected cluster type. The following describes the server configuration by cluster type.

Cluster type	Redundancy configuration	Number of created servers (units)	Component
Stand-alone	X	1	Standalone
Single Replica Set	O	3 ~ 7	Primary, Secondary, Arbiter
Sharding	O	Mongos : 2 ~ 5 Config : 3 Shard: 2 or more Number of members per shard (replica set): 3 to 7 Number of arbiters per shard (replica set): 0 to 1	Mongos, Primary, Secondary, Arbiter

Cluster type

Redundancy configuration

Number of created servers (units)

Component

Stand-alone

Standalone

Single Replica Set

3 ~ 7

Primary, Secondary, Arbiter

Sharding

Mongos : 2 ~ 5
Config : 3
Shard: 2 or more
Number of members per shard (replica set): 3 to 7
Number of arbiters per shard (replica set): 0 to 1

Mongos, Primary, Secondary, Arbiter

Specifications of MongoDB

The specifications of MongoDB offered by Cloud DB for MongoDB are as follows:

MongoDB 4.2, 4.4, 5.0 version provided

Can be selected between Community Edition and Enterprise Edition

WiredTiger storage engine supported

If you need other storage engines, you need to directly install MongoDB on a separate VM to use it. NAVER Cloud Platform does not provide general installation-type MongoDB

Usage fees

Cloud DB for MongoDB uses a pay-as-you-go pricing plan. For detailed description of Cloud DB for MongoDB's pricing standard, see Portal > Services > Database > Cloud DB for MongoDB menu or the Portal > Pricing menu.