September 2024
Intermediate to advanced
514 pages
13h 29m
Spanish
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Capítulo 10. Configurar un conjunto de réplicas
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Este capítulo presenta el sistema de alta disponibilidad de MongoDB: los conjuntos de réplica. Cubre:
Qué son los conjuntos de réplica
Cómo configurar un conjunto de réplicas
¿Qué opciones de configuración están disponibles para los miembros del conjunto de réplica?
Introducción a la replicación
Desde el primer capítulo, hemos estado utilizando un servidor independiente, un único servidor mongod. Es una forma fácil de empezar, pero una forma peligrosa de funcionar en producción. ¿Qué ocurre si tu servidor se bloquea o deja de estar disponible? Tu base de datos no estará disponible al menos durante un tiempo. Si hay problemas con el hardware, puede que tengas que trasladar tus datos a otra máquina. En el peor de los casos, los problemas de disco o de red podrían dejarte con datos corruptos o inaccesibles.
Replicación es una forma de mantener copias idénticas de tus datos en varios servidores y se recomienda para todas las implementaciones de producción. La replicación mantiene tu aplicación en funcionamiento y tus datos a salvo, aunque le ocurra algo a uno o varios de tus servidores.
Con MongoDB, configuras la replicación creando un conjunto de réplicas. Un conjunto de réplicas es un grupo de servidores con un primario, el servidor que realiza las escrituras, y varios secundarios, servidores que guardan copias de los datos del ...
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