Apps emit more log lines than the logging pipeline stores, and nothing alerts. Where do the missing events go?

Nothing errors because dropping unmatched lines is documented behaviour. Counting the tagged failures converts an invisible leak into a number, and numbers have owners.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Nothing errors because dropping unmatched lines is documented behaviour. Counting the tagged failures converts an invisible leak into a number, and numbers have owners.

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Next in this trackAfter moving a shared directory onto NFS, app threads pile into D state and load average tops 50 while CPUs sit idle. Explain it.Next in this trackAuth tokens verify on some replicas and fail on others, seemingly at random. Someone blames clock skew. Make the case.Next in this trackEvery evening the reporting VM crawls, vmstat shows constant si and so, and the CPUs burn in system time. What is happening?

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