AWS re:Invent 2016: Elastic Load Balancing Deep Dive and Best Practices (NET403)

Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances for fault tolerance and load distribution. In this session, we go into detail about Elastic Load Balancing configuration and day-to-day management, as well as its use in conjunction with Auto Scaling. We explain how to make decisions about the service and share best practices and useful tips for success.

[@santhoshpantoz1]

@10:35 , He says "you're paying for 2 load balancers since there are 2 websites". Do we need to configure unique ELB for each website or can't we configure single ELB for multiple websites and let DNS take care of name resolution? I am new to this topic, so, please correct me if I'm wrong.

[@komalthecoolk]

In the earlier versions you could only host one application per ELB which is almost saying one public IP per ELB so if you wanted to host 2 sites or 2 applications, you need 2 ELBs for which you have to pay.

[@ladakshay]

@ 31:40 it shows 2 ELBs one for each zone. As I know ELBs are at region level not at zone level and are fault tolerant to zone disaster. Can someone please clear my understanding.

[@YasiuMaster]

For me is a kind of abstraction we have to understand like that: ELB spreads the load across 2 AZ. So each of ELB instance on the diagram represents handling traffic in particular AZ.
Can be vague.

[@devisharma7201]

I was wondering of the limit on how many rules you can have has been removed or if they're still working on it?

[@木漏れ日-v9n]

75 rules per aws.amazon.com/blogs/aws/new-host-based-routing-support-for-aws-application-load-balancers/.

[@mzlittle]

Will ELB ever support multiple domain routing? I would love to put foo.com and bar.com behind the same ELB.

[@eblackey01]

I believe that should work now. The problem would be that both domains would share the same application paths.

[@木漏れ日-v9n]

This is host-based routing: aws.amazon.com/blogs/aws/new-host-based-routing-support-for-aws-application-load-balancers/