{"id":37709,"date":"2019-10-31T22:19:14","date_gmt":"2019-10-31T19:19:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/dostupen-dqlite-1-0-raspredelyonnyj-variant-sqlite-ot-kompanii-canonical\/"},"modified":"2019-10-31T22:19:14","modified_gmt":"2019-10-31T19:19:14","slug":"dostupen-dqlite-1-0-raspredelyonnyj-variant-sqlite-ot-kompanii-canonical","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/dostupen-dqlite-1-0-raspredelyonnyj-variant-sqlite-ot-kompanii-canonical","title":{"rendered":"Dqlite 1.0 ya est\u00e1 disponible, una versi\u00f3n distribuida de SQLite desarrollada por Canonical","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La empresa Canonical <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/canonical\/dqlite\/releases\/tag\/v1.0.0\">ha publicado<\/a><\/noindex> una importante publicaci\u00f3n del proyecto <noindex><a rel=\"nofollow\" href=\"https:\/\/dqlite.io\/\">Dqlite 1.0<\/a><\/noindex> (Distributed SQLite), que desarrolla un motor SQL embebido compatible con SQLite, que soporta replicaci\u00f3n de datos, recuperaci\u00f3n autom\u00e1tica de fallos y garantiza alta disponibilidad al distribuir los manejadores en m\u00faltiples nodos. La base de datos est\u00e1 implementada como una biblioteca en C que se puede adjuntar a aplicaciones y <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/canonical\/dqlite\">se distribuye<\/a><\/noindex> bajo la licencia Apache 2.0 (SQLite original se proporciona como dominio p\u00fablico). Hay enlaces disponibles para el lenguaje <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/canonical\/go-dqlite\">Go<\/a><\/noindex>.<\/p>\n<p>La biblioteca es una extensi\u00f3n de la base de c\u00f3digo existente de SQLite, que a\u00f1ade soporte para un protocolo de red para vincular m\u00faltiples instancias de aplicaciones que se ejecutan en diferentes hosts. La aplicaci\u00f3n compilada con Dqlite puede operar como un cl\u00faster aut\u00f3nomo y tolerante a fallos, sin depender de bases de datos externas. En la pr\u00e1ctica, Dqlite es utilizado por Canonical en su sistema de gesti\u00f3n de contenedores <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=44228\">LXD<\/a><\/noindex>. Tambi\u00e9n se menciona el uso de la biblioteca para crear dispositivos de internet de las cosas altamente disponibles y manejadores en sistemas<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48372\">Edge<\/a><\/noindex><noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51077\">-computacionales<\/a><\/noindex>. <\/p>\n<p>Para asegurar la consistencia en la replicaci\u00f3n de datos, se aplica un m\u00e9todo para alcanzar consenso basado en el algoritmo  <noindex><a rel=\"nofollow\" href=\"https:\/\/raft.github.io\/\">Raft<\/a><\/noindex>, que se utiliza en proyectos como etcd, RethinkDB, CockroachDB y OpenDaylight. Dqlite emplea una implementaci\u00f3n as\u00edncrona propia de <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/canonical\/raft\">C-raft<\/a><\/noindex>, escrita en C. Para el multiplexado de conexiones y la gesti\u00f3n del lanzamiento de corutinas, se utilizan bibliotecas ya existentes <noindex><a rel=\"nofollow\" href=\"https:\/\/libuv.org\/\">libuv<\/a><\/noindex> y <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/canonical\/libco\">libco<\/a><\/noindex>.<\/p>\n<p>En comparaci\u00f3n con un proyecto similar  <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/rqlite\/rqlite\">rqlite<\/a><\/noindex>, Dqlite ofrece soporte completo para transacciones, puede enlazarse con cualquier proyecto en C, permite el uso de la funci\u00f3n time() y aplica replicaci\u00f3n basada en instant\u00e1neas en lugar de replicaci\u00f3n basada en la transmisi\u00f3n de expresiones SQL.<\/p>\n<p>Caracter\u00edsticas de Dqlite:<\/p>\n<ul>\n<li class=\"l\"> Realizaci\u00f3n de todas las operaciones de disco y red en modo as\u00edncrono;\n<li class=\"l\"> Disponibilidad de un conjunto de pruebas para confirmar la correcci\u00f3n de los datos;\n<li class=\"l\"> Bajo consumo de memoria y eficiente intercambio de datos por la red;\n<li class=\"l\"> Almacenamiento permanente en disco de la base de datos y del log de transacciones (con posibilidad de cach\u00e9 en memoria);\n<li class=\"l\"> Recuperaci\u00f3n r\u00e1pida tras fallos;\n<li class=\"l\"> Cliente CLI estable escrito en Go, que se puede utilizar para inicializar la base de datos, configurar la replicaci\u00f3n y conectar\/desconectar nodos;\n<li class=\"l\"> Soporte para arquitecturas ARM, X86, POWER e IBM Z;\n<li class=\"l\"> La implementaci\u00f3n del algoritmo Raft est\u00e1 optimizada para minimizar la latencia al confirmar transacciones.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51402\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Dqlite 1.0 (Distributed SQLite), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u044b\u0439 \u0441 SQLite \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0439 SQL-\u0434\u0432\u0438\u0436\u043e\u043a, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u044e \u0434\u0430\u043d\u043d\u044b\u0445, \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u0441\u0431\u043e\u0435\u0432 \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u043e\u0442\u043a\u0430\u0437\u043e\u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432\u043e\u0441\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 \u0440\u0430\u0437\u043d\u0435\u0441\u0435\u043d\u0438\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043d\u0430 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0443\u0437\u043b\u043e\u0432. \u0421\u0423\u0411\u0414 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432 \u0444\u043e\u0440\u043c\u0435 \u043f\u0440\u0438\u043a\u0440\u0435\u043f\u043b\u044f\u0435\u043c\u043e\u0439 \u043a \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u043c \u0421\u0438-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0 (\u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 SQLite \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435). \u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u0431\u0438\u043d\u0434\u0438\u043d\u0433\u0438 \u0434\u043b\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-37709","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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