prometheus – Page 3 – ITFROMZERO

Monitoring tutorial - IT technology blog

PHP-FPM Performance Monitoring with Prometheus: Tracking Active Processes, Idle Workers, and Slow Requests to Optimize Your Web Server

By admin July 1, 2026

A guide to setting up PHP-FPM monitoring with Prometheus: enable the status page, install php-fpm_exporter, configure scraping, and build a Grafana dashboard to track active processes, idle workers, and slow requests. Detect bottlenecks before users ever feel them.

Monitoring

Monitoring Elasticsearch and OpenSearch Clusters with Prometheus Exporter and Grafana: Tracking Index Health, Query Latency, and System Resources

By admin June 30, 2026

A practical guide to monitoring Elasticsearch and OpenSearch clusters with Prometheus Exporter and Grafana, covering a comparison of approaches, elasticsearch_exporter setup, and alert configuration for JVM heap, unassigned shards, and disk watermark. Hard-won lessons from 6 months running 50 million documents in production.

Monitoring

Monitor Directory Sizes with Prometheus Folder Exporter: Don’t Wait for a Full Disk to Panic

By admin June 25, 2026

Stop SSHing into servers at 2 AM to find bloated log files. Use Prometheus Folder Exporter to monitor directory sizes and get early alerts.

Monitoring

Monitoring Systemd with Prometheus: Don’t Let Your Server Stay ‘Alive’ While Your App Is ‘Dead’

By admin June 20, 2026

Don't let a green dashboard fool you when internal services have crashed. Detailed guide on using Prometheus Systemd Exporter to monitor uptime and handle Linux service errors effectively.

Monitoring

Monitoring Node.js Applications with prom-client: Request Rate, Latency, and Custom Business Metrics in Real Time

By admin June 17, 2026

A guide to integrating prom-client into a Node.js Express app to expose HTTP metrics for Prometheus and Grafana, covering request rate, P95 latency, error rate, and custom business metrics. Compares monitoring approaches and walks through each step from installation to dashboard creation.

Monitoring

Comprehensive MongoDB Monitoring with Prometheus Exporter and Grafana: Replica Set, Connection Pool, Slow Queries

By admin June 16, 2026

A guide to setting up comprehensive MongoDB monitoring with Prometheus mongodb_exporter and Grafana. Focused on the 3 most common production issues: Replica Set health, Connection Pool exhaustion, and Slow Operations — with real-world PromQL queries and a tiered alert strategy to avoid alarm fatigue.

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Building an Intelligent Alert System with LLM: Automatically Classifying and Summarizing Prometheus Alerts to Reduce Alert Fatigue

By admin June 15, 2026

A hands-on guide to building a Prometheus alert classification and summarization system using LLM, helping SysAdmins escape alert fatigue. Compares rule-based, ML, and LLM approaches, with a complete Python webhook receiver.

Monitoring

Grafana Mimir: An ‘Infinite’ Prometheus Metrics Storage Solution on Object Storage

By admin June 14, 2026

Running out of disk space due to Prometheus? Discover how to install Grafana Mimir for long-term metrics storage on Object Storage. A cost-effective, high-performance solution for DevOps.

Monitoring

Grafana Tempo: Setting Up Distributed Tracing and Integrating Loki + Prometheus in a Single Grafana

By admin June 13, 2026

I once spent 3 hours debugging a slow request without finding the bottleneck — that's what pushed me to set up Grafana Tempo. This article walks through installing Tempo with Docker Compose, connecting it to Loki and Prometheus, and configuring OpenTelemetry from Python so that from a single trace ID you can jump straight to logs and metrics in just a few clicks.

Monitoring

Monitoring Apache Kafka with Prometheus and Grafana: Consumer Lag, Throughput, and Topic Health in Production

By admin June 5, 2026

A comparison of Apache Kafka monitoring approaches (AKHQ, Burrow, JMX Exporter) and a hands-on deployment guide using JMX Exporter + kafka-exporter + Prometheus + Grafana to track consumer lag, broker throughput, and topic health. Includes production-ready PromQL queries and alert rules.