https://sudonull.com/c4-model-for-it-infrastructure-practical-application
How to adapt the C4 model for designing fault-tolerant clusters. Critical errors at the HLD stage and methods to prevent them. Guide for engineers.
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In this project
https://sudonull.com/calculation-view-in-asapbi-without-sql
Learn how to visually build analytical models in asapBI for ADB, PostgreSQL and Trino. Export to UDF, clusters without load on DB. For DWH developers.
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.
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.
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.
From other projects
https://ymaho.com/ai-based-on-ecg-detected-hidden-liver-cirrhosis-nature-medicine-study
Machine learning algorithm on ECG increased detection of liver fibrosis by 4 times. Results of a cluster-randomized study of 15,596 patients. Learn more.
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