US 10,885,018 B2 · Containerization for elastic and scalable databases

Abstract

A data service may be distributed over a set of servers in order to provide a database with properties such as low latency, high availability, and support for various consistency levels. Presented herein is a particular architecture that promotes rapid provisioning to promote scalability and failover; adaptive load-balancing to accommodate fluctuations in demand; and resiliency in the event of various types of failure, such as network partitions or regional outages. For a service comprising a resource set, a container is provided that hosts a set of replicas of a partition, and that is assigned an allocation of computing capabilities of one or more servers. The resource set of the service may be distributed over the replicas of the container. Scalability is achieved by adding replicas to the container, and load-balancing may be provided by splitting, merging, or otherwise refactoring the partition to accommodate anticipated and unanticipated fluctuations in service demand.

Claims19

Dependent claims

A server that provides a service as part of a server set, the server comprising:

a processor;
and
a memory storing instructions that, when executed by the processor, cause the server to:
create a container to host a set of replicas of a first partition of a resource set of the service;
assign to the container an allocation of computing capabilities of the server;
receive a logical subset of resources of the service for the first partition;
create a replica in the container for resources of the first partition;
perform a portion of the service represented by the first partition using a selected resource of the replica, the selected resource being associated with a performance capability;
responsive to a request to expand the performance capability of the selected resource, provision a second partition that expands the performance capability of the selected resource;
and
responsive to a request to reduce the performance capability of the selected resource, merge the second partition and the first partition.

8 more elements

A method of configuring a server to provide a service as part of a server set, the method comprising:

executing, by a processor, instructions that cause the server to:
create a container to host a set of replicas of a selected partition of a resource set of the service, the selected partition being associated with a performance load;
assign to the container an allocation of computing capabilities of the server;
receive a logical subset of resources of the service for the selected partition;
create a replica in the container for the set of resources comprising the selected partition;
perform a portion of the service represented by the selected partition using the set of resources of the replica;
compare the performance load of the selected partition with a high performance load threshold and a low performance load threshold;
and
responsive to the performance load exceeding the high performance load threshold, provision a second partition that supplements a performance capacity of the selected partition to reduce the performance load;
and
responsive to the performance load succeeding the low performance load threshold, merge the second partition and the selected partition.

8 more elements

A method of organizing a server set of servers to provide a service involving a resource set of resources, the method comprising:

partitioning a resource of the resource set into a partition set of partitions, wherein each partition of the partition set comprises a logical subset of the resource, according to a partition key identifying that partition from among other partitions of the partition set and further identifying the resource for which the partition set is provided, and wherein at least one partition key identifies a logical path through a hierarchical organization of partitions and resources of the resource set;
and
for a selected partition:
choose a number of replicas for the selected partition;
and
for each replica:
choose, from the server set, a server to host that replica;
create a container on the server;
and
deploy the resources of the selected partition into the container for that replica;
and
responsive to a request to scale the service:
identify at least one container hosting at least one replica of the service;
and
adjust the at least one replica of the container to satisfy the request.

12 more elements

Dependencies are inferred from the claim text.

Containerization for elastic and scalable databases

Life of this patent

Containerization for elastic and scalable databases

Life of this patent

Abstract

Claims19