Aktívaktív

Aktívaktív, sometimes written aktív–aktív in Hungarian text, is a term used in information technology to describe an architectural approach in which two or more computing nodes, sites, or services operate concurrently to provide a continuous, available service. The primary aim is to minimize downtime and eliminate single points of failure by allowing multiple components to handle traffic and workload in parallel. The concept is the Hungarian rendering of the English term active-active and is commonly applied in enterprise IT, data centers, and cloud deployments.

In an aktívaktív setup, systems typically implement multi-master or peer-to-peer configurations, where changes are propagated across nodes through replication or synchronization mechanisms. Depending on the technology, replication can be synchronous or asynchronous, and consistency models range from strong to eventual. Effective aktívaktív designs rely on reliable networking, robust load balancing, and comprehensive monitoring to manage traffic distribution and detect outages quickly.

Benefits of aktívaktív include reduced downtime, improved throughput, and better scalability. However, it also introduces challenges such as greater architectural complexity, potential data conflicts, and the risk of split-brain scenarios if nodes lose communication with each other. Achieving reliable operation often requires careful planning of data partitioning, conflict resolution strategies, and disaster recovery testing.

Common contexts for aktívaktív architectures include multi-region database deployments, distributed file systems, and cloud-based services where continuous availability is critical. Related concepts in the field include active-passive (standby) configurations and various forms of load-balanced or geo-distributed architectures.