US 2026/0156181 A1Published application

Live Migration Of Clusters In Containerized Environments

AssigneeGoogle Inc.

InventorDaniel Veritas Smith

Life of this patent

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Abstract

The technology provides for live migration from a first cluster to a second cluster. For instance, when requests to one or more cluster control planes are received, a predetermined fraction of the received requests may be allocated to a control plane of the second cluster, while a remaining fraction of the received requests may be allocated to a control plane of the first cluster. The predetermined fraction of requests are handled using the control plane of the second cluster. While handling the predetermined fraction of requests, it is detected whether there are failures in the second cluster. Based on not detecting failures in the second cluster, the predetermined fraction of requests allocated to the control plane of the second cluster may be increased in predetermined stages until all requests are allocated to the control plane of the second cluster.

Claims20

Dependent claims

A method for migration of a cluster-based service in a containerized environment, comprising:

creating, by one or more processors, a destination cluster while a source cluster continues to serve the cluster-based service, wherein the source cluster and the destination cluster operate different software versions;
synchronizing, by the one or more processors, a state of the source cluster with the destination cluster, wherein the synchronizing comprises deploying applications and resources from the source cluster to the destination cluster;
allocating, by the one or more processors, a fraction of requests to the destination cluster while a remaining fraction of requests is allocated to the source cluster;
detecting, by the one or more processors, whether there are failures in the destination cluster while handling the fraction of requests;
increasing, by the one or more processors, based on not detecting failures in the destination cluster, the fraction of requests allocated to the destination cluster until all received requests are allocated to the control plane of the destination cluster;
and
decommissioning, by the one or more processors, the source cluster after substantially all requests are allocated to the destination cluster.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/453,668Filed 20 Jan 2026
Priority: 13 Sep 2019
Published: 4 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H04L 67/1097
In which an application is distributed across nodes in the network: for distributed storage of data in networks, e.g. transport arrangements for…
G06F 9/45533
Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines:…
G06F 9/45558
Hypervisors; Virtual machine monitors: hypervisor-specific management and integration aspects
G06F 9/485
By program, e.g. task dispatcher, supervisor, operating system: task life-cycle, e.g. stopping, restarting, resuming execution

Family

Application62/899,794Us provisional application · filed 13 Sep 2019
Application16/579,945Continuation · filed 24 Sep 2019
Application17/183,848Continuation · filed 24 Feb 2021
Application18/086,201Continuation · filed 21 Dec 2022
Application19/453,668Continuation
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From the US filing history. Foreign family members aren’t listed.