{"id":32402,"date":"2019-10-31T21:46:51","date_gmt":"2019-10-31T18:46:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ok-tech-cassandra-meetup\/"},"modified":"2019-10-31T21:46:51","modified_gmt":"2019-10-31T18:46:51","slug":"ok-tech-cassandra-meetup","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/administrirovanie\/ok-tech-cassandra-meetup","title":{"rendered":"ok.tech: Encuentro de Cassandra.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"ok.tech:
\n<\/p>\n

\u00bfTrabajas con el almacenamiento NoSQL Apache Cassandra?<\/h2>\n

\nEl 23 de mayo, Odnoklassniki invita a desarrolladores experimentados a su oficina en San Petersburgo para un meetup<\/a><\/noindex>, dedicado al trabajo con Apache Cassandra. Solo es importante tu experiencia con Cassandra y tu deseo de compartirla.
\nRegistrarse para el evento<\/a><\/noindex>
\n<\/a><\/noindex>
\nEstamos en OK comenzamos a utilizar<\/a><\/noindex> Apache Cassandra en 2010 para almacenar calificaciones de fotos. Actualmente, somos los mayores usuarios de Apache Cassandra en Runet y unos de los m\u00e1s grandes en Europa. Tenemos m\u00e1s de cien cl\u00fasteres diferentes que se utilizan tanto para almacenar diversas informaciones de productos \u2014 como clases, chats, mensajes \u2014 como para gestionar datos cr\u00edticos de infraestructura \u2014 mapeo de bloques l\u00f3gicos a discos de un gran almacenamiento binario \u2014 one-cold-storage<\/a><\/noindex>, gesti\u00f3n de datos de la nube interna one-cloud<\/a><\/noindex> etc.<\/p>\n

En total, en Odnoklassniki<\/a><\/noindex> bajo la gesti\u00f3n de Cassandra hay petabytes de datos en miles de nodos. Durante este tiempo hemos acumulado una gran experiencia en administraci\u00f3n, desarrollo y explotaci\u00f3n de soluciones basadas en Cassandra, \u00a1e incluso hemos desarrollado nuestra propia base de datos transaccional NewSQL!<\/a><\/noindex>.<\/p>\n

Ahora nos gustar\u00eda compartir todo esto contigo \u2014 con casos reales de la pr\u00e1ctica y sin secretos; El evento se llevar\u00e1 a cabo en un formato de discusi\u00f3n en vivo entre los participantes, lo que significa que la discusi\u00f3n tomar\u00e1 la mayor parte del tiempo. Los expertos de OK<\/a><\/noindex> est\u00e1n listos para compartir sus ideas y enfoques. El evento ser\u00e1 conducido por Oleg Anastasyev<\/a><\/noindex> y Alexander Khristoforov<\/a><\/noindex>.<\/p>\n

\u00bfCu\u00e1les ser\u00e1n los temas?<\/h2>\n

<\/p>\n

Explotaci\u00f3n:<\/h3>\n

\nRevisaremos configuraciones t\u00edpicas de nodos y cl\u00fasteres en varias instalaciones en producci\u00f3n. Discutiremos c\u00f3mo expandir cl\u00fasteres a medida que aumentan los vol\u00famenes de datos y la carga, y c\u00f3mo reemplazar nodos fallidos con un m\u00ednimo efecto para los clientes. Compartiremos las dificultades y sistematizaremos los problemas comunes. Verificaremos c\u00f3mo monitorear cl\u00fasteres para entender con anticipaci\u00f3n d\u00f3nde y qu\u00e9 exactamente no funciona. Abordaremos problemas de despliegue de nuevas versiones de Cassandra.<\/p>\n

Rendimiento:<\/h3>\n

\nIntentaremos entender en qu\u00e9 m\u00e9tricas debemos fijarnos y qu\u00e9 se puede optimizar para mejorar las m\u00e9tricas. Abordaremos si debemos realizar reintentos o no y, si es as\u00ed, c\u00f3mo. Identificaremos cuellos de botella en la arquitectura y la implementaci\u00f3n de Cassandra, y revisaremos algunos trucos ingenieros para evitarlos. Abordaremos el tan comentado repair y compaction sin degradar el rendimiento.<\/p>\n

Disponibilidad:<\/h3>\n

\nEl hardware no es eterno, por lo que los fallos ocurren constantemente, y tambi\u00e9n puede que la mano de un colega tiemble y eliminemos algo de m\u00e1s. Por eso, discutiremos la recuperaci\u00f3n tras fallos de discos, m\u00e1quinas o centros de datos, as\u00ed como la restauraci\u00f3n a un estado consistente a partir de copias de seguridad en caso de errores del operador.<\/p>\n

Reg\u00edstrate<\/a><\/noindex> y cuenta a tus amigos y colegas sobre el evento.
\n
Fuente: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442\u0435 \u0441 NoSQL-\u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435\u043c Apache Cassandra? 23 \u043c\u0430\u044f \u041e\u0434\u043d\u043e\u043a\u043b\u0430\u0441\u0441\u043d\u0438\u043a\u0438 \u043f\u0440\u0438\u0433\u043b\u0430\u0448\u0430\u044e\u0442 \u043e\u043f\u044b\u0442\u043d\u044b\u0445 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0432 \u0441\u0432\u043e\u0439 \u043e\u0444\u0438\u0441 \u0432 \u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433\u0435 \u043d\u0430 \u043c\u0438\u0442\u0430\u043f, \u043f\u043e\u0441\u0432\u044f\u0449\u0435\u043d\u043d\u044b\u0439 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 Apache Cassandra. \u0412\u0430\u0436\u0435\u043d \u043b\u0438\u0448\u044c \u0432\u0430\u0448 \u043e\u043f\u044b\u0442 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 Cassandra \u0438 \u0436\u0435\u043b\u0430\u043d\u0438\u0435 \u0438\u043c \u043f\u043e\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f. \u0417\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u0430 \u043c\u0435\u0440\u043e\u043f\u0440\u0438\u044f\u0442\u0438\u0435 \u041c\u044b \u0432 \u041e\u041a \u043d\u0430\u0447\u0430\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Apache Cassandra \u0432 2010 \u0433\u043e\u0434\u0443 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043e\u0446\u0435\u043d\u043e\u043a \u0444\u043e\u0442\u043e. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043c\u044b […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24215,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-32402","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47ok.tech: meetup de Cassandra | ProHoster","description":"\u00bfTrabajas con el almac\u00e9n NoSQL Apache Cassandra? 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