Blog

High availability keeps MySQL and MariaDB applications running through routine local failures, while disaster recovery restores service after a site or regional outage. This article explains how RTO, RPO, distance, synchronous replication and asynchronous replication shape each strategy, and how Continuent Tungsten Cluster combines local HA with multi-site DR.

A real-world troubleshooting guide showing how MySQL metadata query behavior can cause Tungsten Replicator to appear stalled despite healthy cluster status, with root-cause analysis and preventive configuration recommendations.

Technical explanation of why a high availability cluster may intentionally avoid failover, exploring quorum, replication state, cluster decision-making, and the safeguards that protect data integrity during failures.

Technical guide to enabling GTID mode on a Tungsten Replicator target node, covering compatibility, replication internals, DDL propagation, and operational considerations for safe deployment.

Tungsten Cluster and Tungsten Replicator v8.0.4 is a maintenance release focused on security hardening, updated dependencies, stronger diagnostics, improved replication visibility, safer failover behavior, and reliability fixes across core components.

Technical overview of how Tungsten Cluster achieves data integrity with asynchronous replication, focusing on replication state management, coordinated failover, and strategies to minimize data loss in HA environments.

Learn how to run MySQL on Kubernetes in regulated environments. This guide covers security controls, compliance requirements, auditability, encryption, access management, and operational best practices for production-grade deployments.

A practical comparison of MySQL clustering technologies, analyzing Galera and Tungsten using Jepsen findings to highlight trade-offs in consistency, durability, and high availability design.

A deep dive into multi-region MySQL deployment patterns on Kubernetes, exploring replication models, failover strategies, and the operational trade-offs required to achieve global scale and resilience.

Jepsen found write loss, stale reads, and lost updates in MariaDB Galera Cluster. This article examines what commit actually guarantees and why ordering impacts durability and consistency.

A practical guide to MySQL failover strategies, comparing automated and manual approaches, and examining risks such as replication lag, split-brain, and incorrect promotion in high availability environments.

Practical guide to reducing MySQL data bloat through three archiving approaches: controlled deletes, partitioning, and replication-based offloading, with trade-offs and operational considerations.