Managed Service for MongoDB Beta

1. MongoDB is a document-oriented database management system designed for storing JSON data grouped into "Collections". Any JSON documents can be stored and categorized in this format. Unlike relational DBMSs, MongoDB does not require tables, schemas or a separate query language. The JSON document contained in MongoDB is called binary JSON or BSON, is unstructured, and can store any kind of data.
2. MongoDB is a cross-platform DBMS that provides load balancing, horizontal scaling and data integrity. The MongoDB information storage system is represented by nodes: one master node and a set of secondary nodes whose data is replicated. If the master node fails, the available secondary node becomes the master node.

You can use MongoDB to create applications that do not contain a large number of links, but need to store heterogeneous data.

For example, MongoDB would be suitable for storing:

• blog platform data;
• product catalog;
• storage of events in the system (logging);
• recording information from monitoring sensors in the enterprise, as well as in e-commerce and mobile applications.
• machine learning and artificial intelligence data.

Managed Service for MongoDB is a service that provides a ready-to-use MongoDB database management system, whose cluster uses cloud architecture for hosting.

You can focus on working with the database, enjoy all its benefits, and we will take care of the technical issues of organizing the database cluster and its operation.

Our area of responsibility includes:

• database cluster deployment and its preliminary configuration;
• monitoring and management of the cluster;
• scaling of the cluster;
• ensuring high availability and fault tolerance of the database;
• data backup;
• ensuring data security and restricting access through authorization and encryption;
• maintaining and repairing the infrastructure on which the cluster is hosted;
• providing technical support and access to technical documentation on the service.

By default, automatic cluster backup is performed every 24 hours between 1:00 AM and 5:00 AM GMT+4. During the backup, the access to the clusters is preserved. Backups are stored for 7 days after creation.

You can restore data to any saved backup.

The actual structure of cost formation and service usage rates are given in the "Rates" section of the documentation or in the configurator when ordering a service.

In general, the cost of using the MongoDB managed database service is calculated based on the actual use of resources, based on the following parameters:

• configuration of cluster nodes;
• time of resource utilization;
• the amount of storage reserved for the database cluster;
• the volume of database cluster backups.

In general, MongoDB Community Edition and Enterprise Edition have the same basic features such as queries, aggregation, replication, segmentation, etc. But MongoDB Enterprise Edition has the following additional functionality:

• Support for data encryption mechanisms.
• Kerberos client and server authentication mechanism.
• LDAP protocol support.
• Audit tools.
• Ops Manager - A tool for automating administration tasks that include such things as deployment, monitoring, alerting, and backup.
• BI Connector - A business intelligence tool designed for working with data, allowing you to query MongoDB data with SQL using tools such as Tableau, Power BI, and Excel.
• Enterprise Operator for Kubernetes - a tool to manage typical MongoDB cluster lifecycle events: provision storage and compute capacity, configure network connections, set up users, and change these settings as needed. Kubernetes APIs and tools are used for this purpose.

If the DBMS version you are using is no longer supported by the developer, you will still have access to your data. However, in this case, the creation of new cluster nodes will not be available and other features may be restricted. You will be notified by e-mail and in your personal cabinet about automatic upgrade to the nearest supported version, about the dates of work and database availability. Such upgrade will be performed even if the client has disabled automatic upgrade.

The client is notified about minor version update at least 7 days in advance, about major version update at least 1 month in advance. Upon receipt of such notification, the customer should check the software interfacing with MongoDB for compatibility with the new version. If necessary, the customer should take steps to ensure compatibility with the new version.

Currently, each MongoDB cluster can have no more than 5 hosts, and the maximum cluster storage size should not exceed 600 GB.

In MongoDB, the maximum document size is limited to 16 MB, but when using GridFS, the document size is limited only by the size of the available disk space in the cluster.