Load Balancing Concepts

Goal

The goal of this page is to understand what the term “Load Balancing” can be in the context of a Qlik site.

Table of Contents

• Load Balancing

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Load Balancing

When it comes to load balancing within the scope of Qlik, there are three general areas that are applicable:

1. Load balancing across Qlik proxies
   • Third-party network load balancer required
   • E.g. F5 BigIP, NGINX, Netscaler, AWS ALB, Azure Application Gateway, etc
   • Requires support for websockets and sticky sessions - Required for Qlik Proxy resilience
2. Load balancing across Qlik Engines
   • Native to Qlik at the proxy level
   • Pure round robin - Option to plug in custom load balancer
3. Load balancing rules for applications
   • Native capability allows for “pinning” of applications to specific engines

For documentation/examples around load balancing rules, please refer to Creating load balancing rules with custom properties.

Tags

#architecture

#load_balancing

#scale