eventual consistency
[/ɪˈvɛntʃuəl kənˈsɪstənsi/]
noun
consistência eventual
1. A consistency model used in distributed computing where data updates are propagated asynchronously across all nodes, and all nodes will eventually have the same data after sufficient time has passed without new updates
The cloud storage service uses eventual consistency to ensure high availability across multiple data centers.
O serviço de armazenamento em nuvem usa consistência eventual para garantir alta disponibilidade em múltiplos centros de dados.
2. A guarantee that if no new updates are made to a given data item, eventually all accesses to that item will return the last updated value
With eventual consistency, users might see stale data temporarily, but the system will converge to the correct state.
Com consistência eventual, os usuários podem ver dados desatualizados temporariamente, mas o sistema convergirá para o estado correto.
This is a technical term predominantly used in software engineering and distributed systems design. It emerged prominently in the 2000s with the rise of NoSQL databases and cloud computing. In Brazil, the term is commonly used in tech hubs like São Paulo, particularly in companies dealing with large-scale distributed systems. The concept represents a pragmatic trade-off between consistency and availability in modern distributed architectures.
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