The DNS view enables you to isolate metrics from a single server in order to track its performance over time, which can help you diagnose problems and identify their potential sources. The performance of each of your DNS servers can be affected by issues with your load balancer, your network, or your DNS cache. Investigate problems with individual DNS servers You can also view distributed trace data from the client that sent the request in order to check for code-level application errors, as well as infrastructure metrics at the process level, which can point to particular software consuming the client’s CPU and memory. Click on any flow listed in the DNS view to see additional data-including the flow’s source and destination IP addresses and ports, as well as PIDs. You can use facets such as pod_name and container_id to isolate a subset of flows. Below the graphs, a list presents the details of each DNS request flow-a discrete path between a DNS client in your environment and an internal or external DNS server. These visualizations can help you spot DNS performance problems like an individual server receiving a higher-than-normal rate of requests or responding with increasing latency. The DNS view graphs key DNS-specific health metrics, such as volume, response time, and failure rate of your DNS requests. The new DNS view-part of Datadog Network Performance Monitoring-surfaces monitoring data from all of your DNS servers and managed services in one place, so you can analyze network-wide DNS performance without having to SSH into individual machines.
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