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Open Source Linux

Jun 21, 2023 · Cloud Native

From Monolith to Microservices: A Real‑World Journey and Lessons Learned

An online supermarket startup evolves its simple monolithic website into a fully distributed microservice architecture, detailing each transformation stage, the challenges encountered—such as code duplication, database bottlenecks, deployment complexity—and the solutions like service decomposition, monitoring, tracing, circuit breaking, and service mesh.

Distributed SystemsMonitoringcircuit breaker

0 likes · 23 min read

From Monolith to Microservices: A Real‑World Journey and Lessons Learned

Open Source Linux

May 5, 2023 · Operations

Essential Ops Lessons from 3.5 Years of Real-World Crises

Drawing from three and a half years of operations work, this article shares hard‑earned best practices on testing, backups, security, monitoring, performance tuning, and the right mindset to avoid costly mistakes such as data loss, service outages, and security breaches.

BackupLinuxMonitoring

0 likes · 12 min read

Essential Ops Lessons from 3.5 Years of Real-World Crises

Open Source Linux

Mar 9, 2023 · Operations

Prometheus vs Zabbix: Which Monitoring Tool Wins for Modern Ops?

An in‑depth comparison of Prometheus and Zabbix examines their histories, architectures, data storage, scalability, and container support, highlighting Prometheus’s cloud‑native pull model and Go‑based performance versus Zabbix’s mature, relational‑database approach, to help teams choose the right monitoring solution.

MonitoringOperationsZabbix

0 likes · 8 min read

Prometheus vs Zabbix: Which Monitoring Tool Wins for Modern Ops?

Open Source Linux

Nov 14, 2022 · Operations

Essential Ops Checklist: From Safe Commands to Performance Tuning

This article shares practical operations guidelines covering safe command usage, backup strategies, security hardening, daily monitoring, performance tuning, and the right mindset to prevent data loss and ensure stable, secure Linux server management.

BackupBest PracticesLinux

0 likes · 12 min read

Essential Ops Checklist: From Safe Commands to Performance Tuning

Open Source Linux

Oct 30, 2022 · Operations

Unlock Kubernetes Insights: Master Event Types, Monitoring, and Alerting

This guide explains what Kubernetes events are, how to list and filter them, categorizes common event types, and shows practical ways to collect, store, and alert on events using native commands and open‑source tools, helping teams reduce alert fatigue and improve cluster observability.

EventsKubernetesMonitoring

0 likes · 11 min read

Unlock Kubernetes Insights: Master Event Types, Monitoring, and Alerting

Open Source Linux

Oct 19, 2022 · Backend Development

From Monolith to Microservices: A Practical Evolution Guide

This article walks through the step‑by‑step transformation of a simple online supermarket from a monolithic web app to a fully‑featured microservice architecture, covering common pitfalls, component choices, monitoring, tracing, logging, service discovery, fault‑tolerance, testing, and deployment strategies.

Monitoringcircuit breakerlog analysis

0 likes · 22 min read

From Monolith to Microservices: A Practical Evolution Guide

Open Source Linux

Oct 14, 2022 · Cloud Native

Why Did Our kube-apiserver OOM? A Deep Dive into Kubernetes Control‑Plane Failures

On September 10 2021, a Kubernetes cluster experienced intermittent kubectl hangs caused by kube-apiserver OOM kills, leading to cascading control-plane failures; this article details the environment, observed metrics, log analysis, code inspection of DeleteCollection, and provides troubleshooting steps to prevent similar incidents.

KubernetesMonitoringOOM

0 likes · 21 min read

Why Did Our kube-apiserver OOM? A Deep Dive into Kubernetes Control‑Plane Failures

Open Source Linux

Sep 19, 2022 · Databases

Master RedisInsight: Install, Configure, and Use on Linux & Kubernetes

RedisInsight is a powerful GUI for Redis that enables monitoring, CLI interaction, and module support; this guide walks through its features, step‑by‑step installation on physical servers and Kubernetes, environment configuration, service startup, and basic usage including memory analysis and data operations.

Database GUIInstallationKubernetes

0 likes · 7 min read

Master RedisInsight: Install, Configure, and Use on Linux & Kubernetes

Open Source Linux

Sep 15, 2022 · Databases

Master RedisInsight: Install, Deploy on Kubernetes, and Unlock Redis Monitoring

RedisInsight is a powerful GUI for Redis that offers cluster support, SSL/TLS connections, and memory analysis; this guide walks you through its features, step‑by‑step physical and Kubernetes installations, environment configuration, service startup, and basic usage for monitoring and managing Redis instances.

Database ManagementKubernetesMonitoring

0 likes · 7 min read

Master RedisInsight: Install, Deploy on Kubernetes, and Unlock Redis Monitoring

Open Source Linux

Aug 25, 2022 · Operations

How to Master Linux Disk I/O Performance: Metrics, Tools, and Best Practices

Learn the essential Linux disk I/O performance metrics—utilization, saturation, IOPS, throughput, and response time—and discover how to monitor them using iostat, pidstat, and iotop, with practical examples and guidance for interpreting /proc/diskstats data and evaluating storage bottlenecks.

LinuxMonitoringPerformance Metrics

0 likes · 11 min read

How to Master Linux Disk I/O Performance: Metrics, Tools, and Best Practices

Open Source Linux

Aug 12, 2022 · Operations

What’s New in Grafana 9.0? Explore Visual Query Builders and UI Enhancements

Grafana 9.0 focuses on improving user experience for observability and data visualization, introducing visual Prometheus and Loki query builders, an Explore‑to‑dashboard workflow, a revamped heatmap panel, command palette, panel search, trace panels, navigation upgrades, and enhanced alerting, all aimed at making data discovery and investigation more intuitive and efficient.

DashboardGrafanaLoki

0 likes · 9 min read

What’s New in Grafana 9.0? Explore Visual Query Builders and UI Enhancements

Open Source Linux

Aug 11, 2022 · Operations

Master Zabbix: From Installation to Advanced Monitoring and Alerting

This comprehensive guide explains why monitoring is essential, describes reliability metrics, walks through Zabbix installation, web UI configuration, custom monitoring, trigger creation, alert integration, distributed monitoring, SNMP support, and large‑scale server monitoring using scripts, APIs, and auto‑discovery.

MonitoringSNMPServer Management

0 likes · 24 min read

Master Zabbix: From Installation to Advanced Monitoring and Alerting

Open Source Linux

Aug 8, 2022 · Operations

How to Monitor Nexus Repository with Prometheus & Grafana: Step‑by‑Step Guide

Learn how to set up Prometheus to scrape Nexus repository metrics, configure authentication, and create insightful Grafana dashboards that visualize component, Jetty, and JVM metrics, enabling proactive troubleshooting and resource optimization for Nexus services.

GrafanaMonitoringNexus

0 likes · 7 min read

How to Monitor Nexus Repository with Prometheus & Grafana: Step‑by‑Step Guide

Open Source Linux

Mar 11, 2022 · Operations

Essential Linux Ops Tools: Monitoring, Performance, and Security Utilities

This article presents a curated list of practical Linux operation tools—including Nethogs, IOzone, IOTop, IPtraf, IFTop, HTop, NMON, MultiTail, Fail2ban, Tmux, Agedu, NMap, and Httperf—detailing their purpose, download links, installation commands, and basic usage to help system administrators improve monitoring, performance testing, and security on Linux servers.

LinuxMonitoringOperations

0 likes · 12 min read

Essential Linux Ops Tools: Monitoring, Performance, and Security Utilities

Open Source Linux

Feb 10, 2022 · Operations

Unlock Linux Performance: Understanding Load, CPU Context Switches, and Memory Optimization

This guide explains Linux performance optimization by covering key metrics such as throughput, latency, load average, CPU context switching, and memory management, and demonstrates how to use built‑in tools like vmstat, pidstat, perf, and cachetop to diagnose and resolve bottlenecks.

LinuxMonitoringPerformance

0 likes · 48 min read

Unlock Linux Performance: Understanding Load, CPU Context Switches, and Memory Optimization

Open Source Linux

Jan 5, 2022 · Operations

Designing Scalable High‑Availability Prometheus Architectures

This article explains how to build both small‑scale and large‑scale high‑availability Prometheus setups using local and remote storage, federation, keepalived, and PostgreSQL + TimescaleDB adapters to ensure reliable monitoring and alerting across growing infrastructures.

FederationMonitoringRemote Storage

0 likes · 6 min read

Designing Scalable High‑Availability Prometheus Architectures

Open Source Linux

Nov 28, 2021 · Operations

Boost Linux Server Performance: 20 Proven Optimization Techniques

This guide presents twenty practical Linux server optimization methods—from kernel elevator tuning and daemon reduction to TCP tweaks, secure backups, and effective monitoring commands—helping administrators enhance reliability, speed, and security while reducing resource consumption.

LinuxMonitoringPerformance Tuning

0 likes · 14 min read

Boost Linux Server Performance: 20 Proven Optimization Techniques

Open Source Linux

Nov 25, 2021 · Operations

How to Build a Full‑Stack Monitoring System with Prometheus, Grafana, and OneAlert

This guide walks you through installing Prometheus, configuring node_exporter and mysqld_exporter for remote Linux and MySQL monitoring, visualizing metrics with Grafana, and setting up multi‑level alerts using Grafana integrated with OneAlert for a robust 24/7 operations monitoring solution.

GrafanaMonitoringMySQL Exporter

0 likes · 10 min read

How to Build a Full‑Stack Monitoring System with Prometheus, Grafana, and OneAlert

Open Source Linux

Nov 14, 2021 · Databases

Essential Redis Monitoring Metrics Every Engineer Should Know

This guide outlines the key Redis monitoring metrics—including performance, memory, basic activity, persistence, and error indicators—explains their meanings, shows how to retrieve them with Redis commands, and provides practical tips for effective performance and health tracking.

DatabaseMonitoringPerformance

0 likes · 6 min read

Essential Redis Monitoring Metrics Every Engineer Should Know

Open Source Linux

Oct 31, 2021 · Operations

Designing Effective Metrics: From Requirements to Labels and Buckets

This guide explains how to define, name, and organize monitoring metrics—covering Google’s four golden indicators, system‑specific measurement objects, vector selection, label conventions, bucket design, and practical Grafana tips—for reliable observability of diverse services.

GrafanaMonitoringlabeling

0 likes · 10 min read

Designing Effective Metrics: From Requirements to Labels and Buckets