2020-11-29 Sunday - Load Balancing Concerns and Considerations

{work-in-progress post - I'll continue to elaborate on this post in the future, with additional sections and narrative text}

 In response to this recent article on DZone: Load Balancer Explained – Simplified Through Comics - I prepared this blog post.

A few additional suggested background reading articles that may be of interest for those who want to understand load balancing - and some of the related concerns/considerations - a bit deeper:

Background Reading

• https://en.wikipedia.org/wiki/Load_balancing_(computing)
• https://en.wikipedia.org/wiki/Cloud_load_balancing 

Misc. Forum Q&A 

• https://stackoverflow.com/questions/1040025/difference-between-session-affinity-and-sticky-session

• https://serverfault.com/questions/32421/how-is-session-stickiness-achieved-across-multiple-web-servers

Load Balancing Solution Vendors

NGINX

• https://www.nginx.com/resources/glossary/load-balancing/
• https://www.nginx.com/resources/glossary/session-persistence/
  
• https://www.nginx.com/products/nginx/load-balancing
• https://www.nginx.com/products/nginx/load-balancing/#session-persistence
  

CloudFlare

• https://developers.cloudflare.com/load-balancing/understand-basics/session-affinity

F5

• https://www.f5.com/services/resources/white-papers/cookies-sessions-and-persistence
  

Broadcom CA Enterprise Software

• https://techdocs.broadcom.com/us/en/ca-enterprise-software/layer7-api-management/api-gateway/9-2/reference/http-load-balancer-best-practices/strategies-for-http-load-balancing.html

Cloud Computing  Platforms

Microsoft Azure

• https://devblogs.microsoft.com/premier-developer/considerations-for-load-balancing-your-web-applications/

AWS Cloud

• https://aws.amazon.com/mp/networking/load-balancers/
  
• https://aws.amazon.com/elasticloadbalancing/
• https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/what-is-load-balancing.html 
  
• https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/introduction.html
  
• https://aws.amazon.com/elasticloadbalancing/features/ 
  
• https://aws.amazon.com/elasticloadbalancing/faqs/
  
• https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-sticky-sessions.html
• https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-target-groups.html 
  
• https://docs.aws.amazon.com/AmazonECS/latest/developerguide/load-balancer-types.html
• https://docs.aws.amazon.com/AmazonECS/latest/developerguide/service-load-balancing.html 
  
• https://docs.aws.amazon.com/autoscaling/ec2/userguide/autoscaling-load-balancer.html 
• https://aws.amazon.com/about-aws/whats-new/2020/10/introducing-aws-load-balancer-controller/
  
• https://aws.amazon.com/blogs/aws/introducing-aws-gateway-load-balancer-easy-deployment-scalability-and-high-availability-for-partner-appliances/
• https://aws.amazon.com/premiumsupport/knowledge-center/elb-fix-unequal-traffic-routing/
• https://aws.amazon.com/premiumsupport/knowledge-center/troubleshoot-classic-elb-stickiness/ 
  

Google Cloud

• https://cloud.google.com/load-balancing
• https://cloud.google.com/load-balancing/docs/features
  
• https://cloud.google.com/load-balancing/docs/load-balancing-overview
  
• https://cloud.google.com/load-balancing/docs/https