Distributed Load Balancing for Virtual Desktop Servers

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Solution Overview

Problem

Existing desktop virtualization systems face challenges in efficiently managing load balancing across multiple servers, leading to suboptimal distribution of virtual machine base images and allocated virtual machines, which affects the performance and scalability of virtual desktop systems.

Innovation Solution

Implementing distributed load balancing algorithms within the desktop virtualization software, allowing each server to independently analyze and execute load balancing actions based on common system state information, enabling static, dynamic, and connection load balancing to manage the distribution of virtual machine base images and allocated virtual machines across servers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If centralized load balancing management is used with shared storage and database software, then system coordination is improved, but device complexity and scalability are worsened

Engineering Contradiction:

Improvesystem coordinationVSAvoiddevice complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent segments the load balancing functionality by implementing independent load balancing software on each virtualization server. Each server maintains local state information and executes load balancing algorithms autonomously, eliminating the need for centralized shared storage and database software while maintaining system coordination.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each virtualization server performs self-service load balancing by independently analyzing its own state information and making load balancing decisions without relying on external centralized management systems. This reduces device complexity while maintaining coordination through distributed algorithms.

Inventive Principle:

Principle #25Self-service

2Stability of the object's composition

If external shared storage is used to maintain global state information, then system management is improved, but scalability and performance are worsened

Engineering Contradiction:

Improveglobal state informationVSAvoidscalability

Core Design Contradiction:

Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent segments global state information management by allowing each virtualization server to maintain its own local state information independently. This eliminates the bottleneck of external shared storage and enables each server to scale independently, improving overall system scalability and performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from a centralized dimension of state information storage to a distributed dimension where each server maintains state information locally. This dimensional change enables parallel access and eliminates shared storage bottlenecks, improving scalability.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Quantity of substance

If static load balancing is used for distributing virtual machine base images, then resource distribution is improved, but adaptability to dynamic conditions is worsened

Engineering Contradiction:

Improveresource distributionVSAvoidadaptability

Core Design Contradiction:

Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic load balancing algorithms that continuously monitor system state information and automatically adjust the distribution of virtual machine base images according to current server conditions. This enables the system to adapt to changing workloads and resource availability while maintaining efficient resource distribution.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The load balancing software incorporates feedback mechanisms that monitor system performance and state information, then use this feedback to dynamically adjust load balancing decisions. This allows the system to adapt to dynamic conditions while maintaining optimal resource distribution.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS8850429B2Load balancing in multi-server virtual workplace environments

Publication Date: 2014.09.30 CITRIX SYSTEMS INC

AI summary

Virtual workplace server software may perform load balancing functionality in a multi-server desktop virtualization system. One or more virtualization servers may receive and maintain common state information for the desktop virtualization system, and may independently execute one or more load balancing functions based on the common state information. Each server may independently analyze the common state information and determine whether it will execute a load balancing function based on the analysis, thereby allowing the servers to coordinate actions using distributed load balancing algorithms.