Tag: health checks

AWS announced the launch of accelerated recovery for managing public Domain Name System (DNS) records, a new Amazon Route 53 feature that targets a 60-minute Recovery Time Objective (RTO) for your DNS operations in the unlikely event of service disruptions in the N. Virginia Region (us-east-1). This feature ensures continuity for your critical workloads by […]

Introduction Customers use multi-region architecture to achieve application resiliency such as Active-Active or Disaster Recovery (DR). Depending on DR strategy, customers may need to have failover from one region to the next. DR strategies are covered off in detail in a prior AWS Blog. DR strategies include either an Active/Passive or Multi-Site Active/Active approaches. Active/Passive […]

Introduction The Elastic Load Balancing (ELB) service provides you with Amazon CloudWatch metrics (HealthyHostCount and UnhealthyHostCount) to monitor the targets behind your load balancers. Although the unhealthy host count metric gives the aggregate number of failed hosts, there is a common pain point when you create an alarm for unhealthy hosts based on these metrics. […]