Monitor your application and network load balancer logs

Load balancers serve as crucial entry points in distributed applications by directing incoming traffic to specific endpoints, optimizing throughput and ensuring scalability. Beyond basic load distribution, load balancers perform complex tasks like request analysis, traffic routing based on various parameters, implementing security mechanisms, and conducting health checks, resulting in significant log generation. The logs from application load balancers (ALBs) and network load balancers (NLBs) provide valuable insights into system performance, with ALBs focusing on HTTP/gRPC requests and NLBs on transport-level connections. Monitoring these logs helps identify error spikes, latency outliers, traffic anomalies, and SSL/TLS handshake failures. Datadog's Observability Pipelines and Log Management tools assist in processing high-volume logs, reducing noise, and managing costs by transforming logs before routing them to downstream tools, ensuring efficient management of load balancer activities. These tools provide predefined Packs for popular load balancers, enabling teams to parse, normalize, and analyze logs to maintain performance and security in distributed systems.