Official ITPUB account sharing technical insights, community news, and exciting events.
This article translates and expands Anton Putra’s Nginx vs. Envoy performance benchmark, detailing the AWS test environment, Terraform and Ansible provisioning, proxy configurations, load‑testing methodology with K6, and the resulting request‑per‑second and latency comparisons across HTTP, HTTPS, and gRPC workloads.
This guide compares Chrony and NTPd, explains why Chrony offers faster, more accurate, and more resilient time synchronization for servers, especially in virtualized and cloud environments, and provides step‑by‑step migration commands and configuration tips.
The article outlines the major changes introduced in Elasticsearch 9.x documentation, including the new elastic.co/docs domain, unified version handling, reorganized navigation by use case, separate release‑notes location, versioned API paths, and practical tips for updating bookmarks and finding the right guides.
This article explains the differences between MySQL's RR and RC isolation levels, details master‑slave replication and binlog formats, shows why RR is the default, and why many internet companies now prefer RC for higher concurrency despite its phantom‑read trade‑offs.
The article reveals how highly skilled IT departments, despite delivering seamless migrations and crisis fixes, become the default target for blame when hidden technical debt, rushed deliveries, and organizational misalignments surface, turning their competence into a hidden liability.
Although MySQL historically labeled its three‑byte character set as “utf8”, it actually implements a truncated version (utf8mb3) that cannot store the full Unicode range, leading to bugs with emojis and rare characters; the newer utf8mb4 restores true UTF‑8 support and is now the default in MySQL 8.0.
This article compiles 50 detailed IT operations projects across infrastructure, cloud, containers, automation, monitoring, security, databases, networking, disaster recovery and DevOps, each with scenario, tech stack, implementation steps and quantifiable results to help you craft standout résumé entries.
MinIO, the once‑downloaded‑over‑10‑billion‑times open‑source object storage project, abruptly stopped providing pre‑built Docker images, forcing users to build their own, sparking widespread criticism over unannounced licensing changes, security risks, and the sustainability challenges facing popular open‑source cloud‑native software.
This article details the step‑by‑step investigation and JVM‑level optimizations—including early tenuring, parameter tuning, ZGC migration, and an Eden‑pre‑heat trick—that transformed a high‑concurrency, low‑latency system from 95% to 99.995% success during massive index switches.
The article explains MySQL's default Repeatable Read isolation level, how its lock and binlog mechanisms affect consistency and replication, and why many high‑traffic internet firms change to Read Committed to boost concurrency and reduce deadlocks despite the need to handle phantom reads.
