September 2025
Intermediate to advanced
484 pages
15h 6m
Spanish
Content preview from Creación de microservicios basados en eventos, 2nd Edition
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Capítulo 16. Consistencia eventual
Este trabajo se ha traducido utilizando IA. Agradecemos tus opiniones y comentarios: translation-feedback@oreilly.com
Nota
Una versión anterior de este capítulo apareció previamente en Building an Event-Driven Data Mesh (O'Reilly, 2023).
La coherencia eventual suele ser una preocupación primordial en los sistemas distribuidos. En el caso de los flujos de eventos, la preocupación por la coherencia eventual suele residir principalmente en el lado del consumidor, ya que cada consumidor lee y procesa los eventos a su propio ritmo.
Afortunadamente para nosotros, hay quienes llevan mucho tiempo estudiando, trabajando y pensando en la consistencia eventual. Pat Helland es precisamente una de esas personas y ha escrito un excelente artículo que recoge ideas y opiniones de numerosos líderes de opinión sobre el tema:
Dado que Doug [Terry] acuñó la frase consistencia eventual en el documento Bayou de 1995, me interesaba conocer su perspectiva. Cuando definió la consistencia eventual, quería decir que para cada objeto de una colección de objetos, todas las réplicas de cada objeto tendrán finalmente el mismo valor. Entonces, dijo: "Sí, debería haberlo llamado convergencia eventual".
Pat Helland
Esta cita es significativa en el sentido de que muchos confunden a menudo la coherencia con algo distinto de la convergencia. En el caso de los sistemas basados en eventos, nos interesa mucho garantizar que los servicios sean convergentes, aunque en realidad puede ...
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