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Site Reliability Engineer
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Performance and debugging

Site Reliability Engineer

Performance and debugging questions

17 questions on Performance and debugging for site reliability engineers, easiest first.

Easy 3

A process vanished overnighteasy
CrashLoopBackOffeasy
Logs from the crashed containereasy

Medium 8

Percentiles vs average latencymedium
p99 latency across all instancesmedium
No space left, but disk is not fullmedium
Deleted the log, space not freedmedium
Reading vmstat outputmedium
Exit code 137 in Kubernetesmedium
Reading a slow tracemedium
Timeouts with a healthy databasemedium

Hard 6

Combining percentiles from many servershard
Tail latency with fan-outhard
Coordinated omissionhard
Misleading histogram quantileshard
Go service OOMKilled under loadhard
Listen queue overflowshard

More Site Reliability Engineer skills

Observability and monitoring 34 SLOs and incident management 23 Linux and shell 14 Kubernetes and containers 14 Resilience and fault tolerance 13 Networking 9 System design 9 Incident response and malware 4 Infrastructure as code 4

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