DNS Round Robin
DNS Round Robin is a simple load balancing technique that helps in distributing the incoming traffic across the servers or resources available by rotating the order in which the IP addresses are returned by DNS (Domain Name System) responses. It’s often used to provide a level of fault tolerance. However, DNS round robin is not a very powerful solution for handling a load balancer crash.
How to handle a Load Balancer crash?
Load Balancer crash refers to a sudden failure of a load-balancing system that helps in distributing the network traffic across multiple servers and resources of a system.
This crash disrupts the even and balanced distribution of traffic and resources, which leads to service outages and more amount of pressure or strain on the remaining resources, which leads to other potential failures. Some of the ways to prevent or handle Load Balancer crashes are:
Important Ways to Prevent Load Balancer Crash
- Redundancy and Failover:
- Health Checks:
- Load Balancer Clustering:
- DNS Round Robin:
- Global Server Load Balancing (GSLB):
- Monitoring and Alerting:
- Manual Intervention:
- Regular Maintenance:
- Backup Load Balancer Configuration:
- Load Testing and Redundant Capacity:
- Conclusion: