September 2024
Intermediate to advanced
432 pages
13h 23m
Spanish
book
Cassandra: La Guía Definitiva, (Revisada) Tercera Edición, 3ª Edición
by Jeff Carpenter, Eben Hewitt
Content preview from Cassandra: La Guía Definitiva, (Revisada) Tercera Edición, 3ª Edición
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Capítulo 12. Mantenimiento
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En este capítulo, veremos algunas cosas que puedes hacer para mantener sano tu clúster Cassandra. Nuestro objetivo aquí es proporcionar una visión general de las diversas tareas de mantenimiento disponibles. Dado que los procedimientos específicos de estas tareas tienden a cambiar ligeramente de una versión a otra, deberás asegurarte de consultar la documentación de Cassandra de la versión que estés utilizando para asegurarte de que no te estás perdiendo ningún paso nuevo.
¡Pongámonos los sombreros de operaciones y empecemos!
Chequeo médico
Hay algunas cosas básicas que deberás buscar para asegurarte de que los nodos de tu clúster están sanos:
-
Utiliza
nodetool statuspara asegurarte de que todos los nodos están funcionando e informando del estado normal. Comprueba la columnaloadde cada nodo para asegurarte de que el clúster está bien equilibrado. Un número desigual de nodos por rack puede dar lugar a un clúster desequilibrado. -
Comprueba
nodetool tpstatsen tus nodos para ver si hay mensajes perdidos, especialmente mutaciones, ya que esto indica que pueden perderse escrituras de datos. Un número creciente de escritores de volcado bloqueados indica que el nodo está ingiriendo datos en memoria más rápido de lo que puede volcarlos al disco. Ambas condiciones pueden indicar que Cassandra tiene problemas para mantener la carga. Como suele ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.