Elasticsearch Archives - ITFROMZERO

Getting Started with OpenSearch and Docker: Full-Text Search and Log Analytics

By IT From Zero November 6, 2026

A step-by-step guide to deploying OpenSearch and OpenSearch Dashboards with Docker Compose. An open-source full-text search and log analytics alternative to Elasticsearch.

Development

Implementing Change Data Capture (CDC) with Debezium and Apache Kafka: Real-Time Data Sync from PostgreSQL to Elasticsearch

By IT From Zero November 5, 2026

A step-by-step guide to building a CDC pipeline from PostgreSQL to Elasticsearch using Debezium and Apache Kafka, eliminating the data drift risks of dual-write architectures.

Monitoring

Installing and Configuring Vector: A High-Performance Log Pipeline Alternative to Logstash

By IT From Zero October 12, 2026

A hands-on comparison of Vector vs. Logstash covering RAM, CPU usage, and log parsing. Includes a step-by-step guide to installing Vector on Linux, writing VRL pipelines to parse Nginx logs, and shipping them efficiently to Elasticsearch.

Monitoring

Installing and Configuring Fluent Bit on Linux: High-Performance Log Collection, Filtering, and Forwarding to Loki and Elasticsearch

By IT From Zero October 11, 2026

A practical guide to configuring Fluent Bit on Linux: Collect, parse, and route Nginx logs and syslog to Grafana Loki and Elasticsearch with minimal resource overhead.

MySQL

Integrating MySQL with Elasticsearch via Logstash: Building an Automated Data Sync Pipeline

By IT From Zero October 5, 2026

Is your MySQL database hitting CPU bottlenecks from heavy search queries? Learn how to build an automated sync pipeline to Elasticsearch with Logstash JDBC—quick, clean, and without touching backend code.

Centos

Installing Elasticsearch and Kibana on CentOS Stream 9: Tips for Handling SELinux and Firewalld

By IT From Zero July 10, 2026

No more manual log hunting. A guide to installing Elasticsearch and Kibana on CentOS Stream 9, with a focus on proper SELinux and Firewalld configuration for production environments.

Monitoring

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

By IT From Zero 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

ELK Stack Installation Guide: Centralized Log Management from A-Z for SysAdmins

By IT From Zero March 30, 2026

A comprehensive guide to installing ELK Stack 8.x. Learn tips for JVM Heap optimization, pipeline processing, and effective centralized log management for SysAdmins.