Kernelscope: Live debugging at scale

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One Line Summary

This talk will cover kernelscope, a tool we use inside of Facebook to debug complex problems.

Abstract

Facebook has an mind boggling number of servers. Those servers run a mind boggling variety of services. These services are often complex and run into strange latency problems that are impossible to break down into reproduce-able chunks. Enter kernelscope, a bpf based tracing service. Using this tool we are able to tease out patterns of problems in large and complex systems in production with very little overhead.

Tags

scale, tracing, visualization, bpf, bcc

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