#Kubernetes

A deep troubleshooting and systems engineering guide to diagnosing Out-Of-Memory (OOM) events and memory leaks in production: analyzing dmesg kernel logs, cgroup v2 memory limits, /proc/smaps_rollup, eBPF memleak profiling, and fixing exit code 137 crashes in Node.js, Go, and Linux containers.

A deep Kubernetes and Linux networking guide to sidecarless service meshes: how eBPF socket-level redirection (sockops) and Istio Ambient Mesh eliminate the 20-40% CPU/RAM sidecar tax, bypass the TCP/IP stack for local traffic, and deliver zero-overhead mTLS and L7 observability.

A deep systems engineering breakdown of distributed consensus protocols: the FLP Impossibility Theorem, Replicated State Machines, Raft leader election & log matching safety invariants, Multi-Paxos Phase 1/Phase 2 quorum rounds, joint consensus cluster reconfiguration, and building a mini Raft state machine in Go.