Azure Load Balancer’s international tier is a cloud-native international community load balancing answer. With cross-region Load Balancer, clients can distribute visitors throughout a number of Azure areas with ultra-low latency and excessive efficiency. To raised perceive the use case of Azure’s cross-region Load Balancer, let’s dive deeper right into a buyer state of affairs. On this weblog, we’ll study a buyer, their use case, and the way Azure Load Balancer got here to the rescue.
Who can profit from Azure Load Balancer?
This instance buyer is a software program vendor within the automotive business. Their present product choices are cloud–based mostly software program, centered on serving to car dealerships handle all points of their enterprise together with gross sales leads, autos, and buyer accounts. Whereas it’s a international firm, most of its enterprise is completed in Europe, the UK (UK), and Asia Pacific areas. To help its international enterprise, the client makes use of a variety of Azure providers together with digital machines (VMs), quite a lot of platform as a service (PaaS) options, Load Balancer, and MySQL to assist meet an ever-growing demand.
What are the present international load balancing options?
The shopper is utilizing area title service (DNS)–based mostly visitors distribution to direct visitors to a number of Azure areas. At every Azure area, they deploy regional Azure Load Balancers to distribute visitors throughout a set of digital machines. Nevertheless, if a area went down, they skilled downtime attributable to DNS caching. Though minimal, this was not a threat they may proceed to tackle as their enterprise expanded globally.
What are the issues with the present options?
Because the buyer’s answer is international, as visitors elevated, they seen excessive latency when requesting data from their endpoints throughout areas. For instance, customers positioned in Africa seen excessive latency once they tried to request data. Usually their requests had been routed to an Azure area on one other continent, which brought about the excessive latency. Answering requests with low latency is a crucial enterprise requirement to make sure enterprise continuity. Because of this, they wanted an answer that withstood regional failover, whereas concurrently offering ultra-low latency with excessive efficiency.
How did Azure’s cross-region Load Balancer assist?
Provided that low latency is a requirement for the client, a worldwide layer 4 load balancer was an ideal answer to the issue. The shopper deployed Azure’s cross-region Load Balancer, giving them a single distinctive globally anycast IP to load steadiness throughout their regional places of work. With Azure’s cross-region Load Balancer, visitors is distributed to the closest area, guaranteeing low latency when utilizing the service. For instance, if a buyer linked from Asia Pacific areas, visitors is routinely routed to the closest area, on this case Southeast Asia. The shopper was ready so as to add all their regional load balancers to the backend of the cross-region Load Balancer and thus improved latency with none extra downtime. Earlier than the replace was deployed throughout all areas, the client verified that their metrics for information path availability and well being probe standing are 100% on each its cross-region Load Balancer and every regional Load Balancer.
After deploying cross-region Load Balancer, visitors is now distributed with ultra-low latency throughout areas. Because the cross-region Load Balancer is a community load balancer, solely the TCP/UDP headers are rapidly inspected as an alternative of your complete packet. As well as, the cross-region Load Balancer will ship visitors to the closest taking part Azure area to a shopper. These advantages are seen by the client who now sees visitors being served with decrease latency than earlier than.
Be taught Extra
Go to the Cross-region load balancer overview to be taught extra about Azure’s cross-region Load Balancer and the way it can match into your structure.
