monimasterijärjestelmän

The term "monimasterijärjestelmän" translates from Finnish as "multi-master system." In computer science and database management, a multi-master system is a distributed database architecture where multiple nodes can accept write operations. Unlike a single-master system, where only one node is designated for writing, a multi-master setup allows any node to be a source of updates.

This architecture offers several advantages. High availability is a primary benefit, as the failure of a single node does not halt write operations. If one master is unavailable, others can continue to serve requests. Scalability is another advantage, as read and write loads can be distributed across multiple nodes. This can significantly improve performance for applications with high transaction volumes.

However, multi-master systems also present challenges. Data consistency across all nodes is a significant concern. When multiple nodes can update the same data concurrently, mechanisms are needed to resolve conflicts and ensure that all replicas eventually converge to a consistent state. These conflict resolution strategies can be complex and may involve techniques like last-writer-wins or more sophisticated merging algorithms. Replication latency, the time it takes for changes made on one node to propagate to others, is another factor to consider. Network partitioning, where parts of the system become temporarily disconnected, can also lead to inconsistencies that require careful management.