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June 1, 2011
 

WRR balancing between EC2 regions with Route53

Route53 introduced a new feature that lets you configure DNS based balancing between EC2 regions. Yes, you heard that right. Between EC2 regions. How does this magic happen? By leveraging a new R53 concept called Weighted Alias resource records, that let you define multiple mappings between your zone apex and your ELBs, as well as assign weights to the mappings.

Warr1
Warr2
Warr3

This works great, but do keep in mind that this is a round robin scheme and may not be suitable for all kinds of apps. This is a great start, and looking forward to more neat stuff from the route53 team. Enjoy :-)

Filed under  //   WRR   alias   apex   aws   balancing   dns   elb   route53   zone  

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May 26, 2011
 

Weighted Round Robin DNS based load balancing with Route53

Route53 now gives you the ability to balance request load by configuring a DNS record to return one of multiple possible answers according to some defined weighted round robin policy :-) Here is how one would setup three A records for the sub-domain www.xanthe.us with weights of 1, 1, and 3 (sum = 5). Route 53 will then select each of the first two resource record sets one-fifth of the time, and returns the third resource record set three-fifths of the time for all queries for www.xanthe.us. And how do we set this all up in Ylastic?

Wrr1
Wrr2

Yep. As simple as that. 

Wrr3

Enjoy :-)

Filed under  //   WRR   aws   balancing   dns   route53   weighted  

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