US 2026/0211843 A1 · SYSTEMS AND METHODS FOR SCALABLE DATABASE HOSTING DATA OF MULTIPLE DATABASE TENANTS

Systems and methods for scalable database hosting data of multiple database tenants

AssigneeMongoDB, Inc.

InventorsAndrew Michalski Schwerin, Therese Avitabile, Mark Porter, Tomer Yakir, Gregory Banks, Louisa Berger, Jack Wearden, Judah Schvimer, Matthew Russotto, Michael Cahill, Esha Maharishi, Siyuan Zhou, Eric Andrew Milkie, A Jesse Jiryu Davis, Misha Tyulenev, Keith Smith, Susan LoVerso, Donald Anderson

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Abstract

According to aspects of the disclosure, there is provided a scalable cloud distributed database system for hosting data of multiple database tenants. In some embodiments, the database may be serverless. The serverless database may be configured to automatically and dynamically match resources to workload demands for tenants of the database. Databases described herein may include replica sets hosting multiple tenants. Tenants may be migrated from one replica set to another replica set based on usage. Usage of tenants may be throttled during migration between replica sets. Tenants with lower usage may be selected for migration between replica sets. During migration, files containing both a document and a history of updates to the document may be migrated. Databases described herein may include multiple storage tiers having different read and/or write speeds.

Claims21

Dependent claims

1-20. (canceled)

A scalable cloud distributed database system for hosting data of multiple database tenants, the system comprising:

at least one cloud based resource, the at least one cloud based resource including processor and memory;
a database subsystem executing on the at least one cloud based resource, the database subsystem comprising a first replica set and a second replica set, each of the first and second replica sets configured to store data associated with a plurality of tenants,
wherein the database subsystem is configured to:
receive a first database operation;
identify that the first database operation is associated with a first tenant of the plurality of tenants based on server name indication (SNI);
after identifying that the first database operation is associated with the first tenant, attach, to the first database operation, a first token associated with the first tenant;
route the first database operation to the first replica set or the second replica set with the first token attached to the first database operation;
and
wherein each of the first replica set and the second replica set includes a primary node hosting a primary database instance of a database and two secondary nodes hosting copies of data of the primary database instance,
the primary node being configured to:
accept database write operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database write operations, propagate the database write operations to the two secondary nodes;
the two secondary nodes being configured to:
replicate operations from the primary node;
accept database read operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database read operations, provide results from the copies of the data of the primary database instance hosted by the two secondary nodes.

15 more elements

A computer implemented method for providing a scalable cloud distributed database system for hosting data of multiple database tenants, the method comprising:

executing a database subsystem on at least one cloud based resource, the database subsystem comprising a first replica set and a second replica set, each of the first and second replica sets configured to store data associated with a plurality of tenants,
receiving a first database operation;
identifying that the first database operation is associated with a first tenant of the plurality of tenants based on server name indication (SNI);
after identifying that the first database operation is associated with the first tenant, attaching, to the first database operation, a first token associated with the first tenant;
routing the first database operation to the first replica set or the second replica set with the first token attached to the first database operation;
and
wherein each of the first replica set and the second replica set includes a primary node hosting a primary database instance of a database and two secondary nodes hosting copies of data of the primary database instance,
the primary node being configured to:
accept database write operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database write operations, propagate the database write operations to the two secondary nodes;
the two secondary nodes being configured to:
replicate operations from the primary node;
accept database read operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database read operations, provide results from the copies of the data of the primary database instance hosted by the two secondary nodes.

13 more elements

At least one non-transitory computer-readable storage medium storing processor-executable instructions that, when executed by at least one processor, cause the at least one processor to perform a method for providing a scalable cloud distributed database system for hosting data of multiple database tenants, the method comprising:

executing a database subsystem on at least one cloud based resource, the database subsystem comprising a first replica set and a second replica set, each of the first and second replica sets configured to store data associated with a plurality of tenants,
receiving a first database operation;
identifying that the first database operation is associated with a first tenant of the plurality of tenants based on server name indication (SNI);
after identifying that the first database operation is associated with the first tenant, attaching, to the first database operation, a first token associated with the first tenant;
routing the first database operation to the first replica set or the second replica set with the first token attached to the first database operation;
and
wherein each of the first replica set and the second replica set includes a primary node hosting a primary database instance of a database and two secondary nodes hosting copies of data of the primary database instance,
the primary node being configured to:
accept database write operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database write operations, propagate the database write operations to the two secondary nodes;
the two secondary nodes being configured to:
replicate operations from the primary node;
accept database read operations associated with tenants of the plurality of tenants;
and
responsive to accepting the database read operations, provide results from the copies of the data of the primary database instance hosted by the two secondary nodes.

13 more elements

Dependencies are inferred from the claim text.