How to Install and Configure Memcached on RHEL 7 Memcached is a high-performance, distributed memory object caching system used to speed up dynamic web applications by reducing database load. It stores frequently requested data — such as database query results, session data, and rendered page fragments — in RAM, allowing subsequent requests to be served […]
How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 7 Taking reliable backups of a live MySQL or MariaDB database without interrupting application traffic is a fundamental requirement for any production system. mysqldump works for small databases but locks tables and can run for hours on large datasets. Percona XtraBackup solves this problem […]
How to Configure MariaDB Galera Cluster on RHEL 7 MariaDB Galera Cluster is a synchronous multi-primary replication solution for MariaDB. Every node in a Galera cluster can accept writes simultaneously, and changes are replicated to all other nodes before a transaction is confirmed to the client. This eliminates replication lag, prevents data loss on node […]
How to Install ClickHouse Columnar Database on RHEL 7 ClickHouse is an open-source columnar database management system developed by Yandex, designed specifically for online analytical processing (OLAP) workloads. Unlike traditional row-oriented databases, ClickHouse stores data by column, enabling it to read only the columns needed for a query and compress similar data together — resulting […]
How to Install Elasticsearch on RHEL 7 Elasticsearch is a distributed, RESTful search and analytics engine built on Apache Lucene. It is widely used for full-text search, log aggregation, and real-time data analysis. This guide walks you through installing and configuring Elasticsearch on Red Hat Enterprise Linux 7, including repository setup, basic cluster configuration, JVM […]
How to Set Up PostgreSQL Streaming Replication on RHEL 7 PostgreSQL streaming replication allows a standby server to continuously receive and apply WAL (Write-Ahead Log) records from a primary server in near real time, maintaining an up-to-date hot standby copy of the database. This is the foundation of high availability and read scaling strategies in […]
How to Back Up and Restore MySQL Databases with mysqldump on RHEL 7 Regular database backups are the single most important operational task for any MySQL administrator. mysqldump is the built-in logical backup utility that ships with every MySQL and MariaDB installation — it produces plain-text SQL files that can be compressed, transferred off-site, and […]
How to Install Redis on RHEL 7 Redis is an open-source, in-memory data structure store used as a database, cache, message broker, and streaming engine. Its sub-millisecond response times make it the go-to solution for session caching, real-time leaderboards, pub/sub messaging, and rate limiting in high-performance web applications. On RHEL 7, Redis is available through […]
How to Install MariaDB on RHEL 7 MariaDB is a community-developed, fully open-source relational database management system that serves as the default MySQL-compatible database engine on Red Hat Enterprise Linux 7. Maintained by the original developers of MySQL, MariaDB offers full SQL compliance, excellent performance, and a rich set of storage engines. Because RHEL 7 […]
How to Install MySQL 5.7 on RHEL 7 MySQL 5.7 is one of the most widely deployed open-source relational database management systems in the world. While RHEL 7 ships with MariaDB as its default MySQL-compatible database, many production environments specifically require the Oracle MySQL 5.7 branch for compatibility with existing applications, stored procedures, or third-party […]
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