I had an interview recently where the interviewer asked me how I would identify and troubleshoot latency issues in an application running on Kubernetes with a microservices architecture. I'm curious about the different ways to tackle this problem and what common causes of latency might be. Any insights or strategies would be appreciated!
2 Answers
This is definitely an open-ended question! Start by figuring out how latency is being measured—server-side or client-side? Also, consider if the requests are handled within the cluster or going out; more hops can introduce delays. It's important to determine if the latency is affecting just one endpoint or multiple requests. Check what logs and metrics you have available to spot any discrepancies.
Along with the ideas mentioned, I’d also recommend focusing on tracing to identify which service is the culprit. Following that, examine the logs and metrics of that service to see if it’s a resource or I/O issue. Often, pinpointing the exact problem can lead to effective solutions.
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