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Cluster dual Xeon + 6 CMP 90HX for ML

https://sudonull.com/cluster-dual-xeon-6-cmp-90hx-for-ml

Assembly of a budget computing cluster on Jingsha X99: GPU selection, ECC memory, diagnostics. Instructions for middle/senior dev on local ML nodes. Learn more.

Home DevOps Cluster: Budget Laboratory

https://sudonull.com/home-devops-cluster-budget-laboratory

How to Build a Home DevOps Cluster from Scratch? We Analyze the Case of a Budget Laboratory Based on SuperMicro Servers. Learn About Equipment Selection and DIY Solutions.

PostgreSQL Recovery without 2.5 TB Backup

https://sudonull.com/postgresql-recovery-without-2-5-tb-backup

Real case of PostgreSQL cluster destruction from WAL deletion and SIGKILL. Recovery steps with ignore_system_indexes, crash_info and pg_dump patches. Lessons for 1C DBA.

Kafka KRaft practice Spring Boot microservices

https://sudonull.com/kafka-kraft-practice-spring-boot-microservices

Deploy Kafka cluster on KRaft, integrate with 4 Spring Boot services. Full producer/consumer code, docker-compose, topics with retention. For middle/senior dev.

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