{"id":86322,"date":"2020-06-24T01:42:23","date_gmt":"2020-06-23T23:42:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pervyj-stabilnyj-vypusk-grafo-orientirovannoj-subd-nebula-graph"},"modified":"2020-06-24T01:42:23","modified_gmt":"2020-06-23T23:42:23","slug":"pervyj-stabilnyj-vypusk-grafo-orientirovannoj-subd-nebula-graph","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/pervyj-stabilnyj-vypusk-grafo-orientirovannoj-subd-nebula-graph","title":{"rendered":"Primeiro lan\u00e7amento est\u00e1vel do SGBD orientado a grafos Nebula Graph","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/vesoft-inc\/nebula\/releases\/tag\/v1.0.0\">Aconteceu<\/a><\/noindex> lan\u00e7amento do banco de dados relacional aberto <noindex><a rel=\"nofollow\" href=\"https:\/\/nebula-graph.io\/\">Nebula Graph 1.0.0<\/a><\/noindex>, projetado para o armazenamento eficiente de grandes conjuntos de dados interconectados, formando um grafo que pode conter bilh\u00f5es de n\u00f3s e trilh\u00f5es de conex\u00f5es. O projeto foi escrito em C++ e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/vesoft-inc\/nebula\">\u00e9 distribu\u00eddo<\/a><\/noindex> sob a licen\u00e7a Apache 2.0. As bibliotecas clientes para interagir com o banco de dados foram preparadas para as linguagens Go, Python e Java. A startup VESoft, desenvolvedora do banco de dados, recebeu h\u00e1 alguns dias <noindex><a rel=\"nofollow\" href=\"https:\/\/nebula-graph.io\/posts\/nebula-graph-raises-8-million-dollars-in-series-pre-a-funding\/\">recebeu<\/a><\/noindex> a primeira rodada de investimentos no valor de 8 milh\u00f5es de d\u00f3lares.<\/p>\n<p>No banco de dados  <noindex><a rel=\"nofollow\" href=\"https:\/\/nebula-graph.io\/en\/posts\/nebula-graph-architecture-overview\/\">\u00e9 aplicada<\/a><\/noindex> arquitetura distribu\u00edda sem compartilhamento de recursos (shared-nothing), que permite a execu\u00e7\u00e3o de processos independentes e autossuficientes de processamento de consultas graphd e processos de armazenamento storaged. A orquestra\u00e7\u00e3o da movimenta\u00e7\u00e3o de dados e a presta\u00e7\u00e3o de metainforma\u00e7\u00f5es sobre o grafo s\u00e3o realizadas por servi\u00e7os meta. Para garantir a consist\u00eancia dos dados, utiliza-se um protocolo baseado no algoritmo <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Raft_(computer_science)\">RAFT<\/a><\/noindex>.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/raw.githubusercontent.com\/vesoft-inc\/nebula-docs\/master\/images\/Nebula%20Arch.png\"><img decoding=\"async\" alt=\"Primeiro lan\u00e7amento est\u00e1vel do SGBD orientado a grafos Nebula Graph\" src=\"\/wp-content\/uploads\/2020\/06\/446a4b199534d9038997d348a3bc52b4.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Principais caracter\u00edsticas do Nebula Graph:<\/p>\n<ul>\n<li class=\"l\"> Garantir <noindex><a rel=\"nofollow\" href=\"https:\/\/nebula-graph.io\/posts\/access-control-design-code-nebula-graph\/\">seguran\u00e7a<\/a><\/noindex> atrav\u00e9s da concess\u00e3o de acesso apenas a usu\u00e1rios autenticados, cujos privil\u00e9gios s\u00e3o definidos por um sistema de controle de acesso baseado em fun\u00e7\u00f5es (RBAC).\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/nebula-graph.io\/en\/posts\/nebula-graph-storage-engine-overview\/\">Possibilidade<\/a><\/noindex> conex\u00f5es de diferentes tipos de motores de armazenamento. Suporte \u00e0 extens\u00e3o da linguagem de consulta com novos algoritmos.\n<li class=\"l\"> Garantir lat\u00eancias m\u00ednimas durante leitura ou grava\u00e7\u00e3o de dados e manter alta capacidade de processamento. Durante <noindex><a rel=\"nofollow\" href=\"https:\/\/discuss.nebula-graph.io\/t\/nebula-graph-1-0-benchmark-report\/581\">testes<\/a><\/noindex>  em um cluster com um n\u00f3 graphd e tr\u00eas n\u00f3s storaged, o banco de dados com 632 GB, incluindo um grafo de 1,2 bilh\u00f5es de v\u00e9rtices e 8,4 bilh\u00f5es de arestas, apresentou lat\u00eancias na casa de alguns milissegundos, enquanto a capacidade de processamento atingiu at\u00e9 140 mil consultas por segundo.\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/discuss.nebula-graph.io\/uploads\/default\/original\/1X\/827701da186cb78cfe41577010be0c7624a595c3.png\"><img decoding=\"async\" alt=\"Primeiro lan\u00e7amento est\u00e1vel do SGBD orientado a grafos Nebula Graph\" src=\"\/wp-content\/uploads\/2020\/06\/91df2fe585bcbaf85dcc55b33fe3ef31.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<li class=\"l\"> Escalabilidade linear.\n<li class=\"l\"> Uma linguagem de consulta semelhante ao SQL, suficientemente poderosa e f\u00e1cil de entender. Suporta opera\u00e7\u00f5es como GO (traversal bidirecional de n\u00f3s do grafo), GROUP BY, ORDER BY, LIMIT, UNION, UNION DISTINCT, INTERSECT, MINUS, PIPE (uso do resultado da consulta anterior). Suporta \u00edndices e vari\u00e1veis definidas pelo usu\u00e1rio.\n<li class=\"l\"> Garantir alta disponibilidade e resili\u00eancia a falhas.\n<li class=\"l\"> Suporte \u00e0 cria\u00e7\u00e3o de snapshots com um corte do estado do banco de dados para simplificar a cria\u00e7\u00e3o de backups.\n<li class=\"l\"> Pronto para uso industrial (j\u00e1 utilizado na infraestrutura das empresas JD, Meituan e Xiaohongshu).\n<li class=\"l\"> A possibilidade de alterar o esquema de armazenamento e atualiza\u00e7\u00e3o de dados sem parar ou impactar as opera\u00e7\u00f5es em andamento.\n<li class=\"l\"> Suporte a TTL para limitar o tempo de vida dos dados.\n<li class=\"l\"> Comandos para gerenciar configura\u00e7\u00f5es e hosts de armazenamento.\n<li class=\"l\"> Ferramentas para gerenciar jobs e agendar a execu\u00e7\u00e3o de tarefas (atualmente, os jobs suportados s\u00e3o COMPACT e FLUSH).\n<li class=\"l\"> Opera\u00e7\u00f5es de busca do caminho completo e do caminho mais curto entre v\u00e9rtices espec\u00edficos.\n<li class=\"l\"> Interface OLAP para integra\u00e7\u00e3o com plataformas de an\u00e1lise de terceiros.\n<li class=\"l\"> Utilit\u00e1rios para importar dados de arquivos CSV ou do Spark.\n<li class=\"l\"> Exporta\u00e7\u00e3o de m\u00e9tricas para monitoramento usando Prometheus e Grafana.\n<li class=\"l\"> Interface web<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/vesoft-inc\/nebula-web-docker\">Nebula Graph Studio<\/a><\/noindex> para visualiza\u00e7\u00e3o de opera\u00e7\u00f5es de grafos, navega\u00e7\u00e3o por grafos, design de esquema de armazenamento e carregamento de dados.<br \/>\n<center><noindex><a rel=\"nofollow\" href=\"https:\/\/user-images.githubusercontent.com\/40747875\/73912446-7d9c4b80-48ef-11ea-8fd2-14af27de8a69.png\"><img decoding=\"async\" alt=\"Primeiro lan\u00e7amento est\u00e1vel do SGBD orientado a grafos Nebula Graph\" src=\"\/wp-content\/uploads\/2020\/06\/f27f8b0164940a87410c2ed9b1ebf699.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53222\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u0421\u0423\u0411\u0414 Nebula Graph 1.0.0, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043a\u0440\u0443\u043f\u043d\u044b\u0445 \u043d\u0430\u0431\u043e\u0440\u043e\u0432 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439 \u0434\u0430\u043d\u043d\u044b\u0445, \u043e\u0431\u0440\u0430\u0437\u0443\u044e\u0449\u0438\u0445 \u0433\u0440\u0430\u0444, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u0435\u0442 \u043d\u0430\u0441\u0447\u0438\u0442\u044b\u0432\u0430\u0442\u044c \u043c\u0438\u043b\u043b\u0438\u0430\u0440\u0434\u044b \u0443\u0437\u043b\u043e\u0432 \u0438 \u0442\u0440\u0438\u043b\u043b\u0438\u043e\u043d\u044b \u0441\u0432\u044f\u0437\u0435\u0439. \u041f\u0440\u043e\u0435\u043a\u0442 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421++ \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. \u041a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u0435 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a \u0421\u0423\u0411\u0414 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f \u044f\u0437\u044b\u043a\u043e\u0432 Go, Python \u0438 Java. \u0420\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0421\u0423\u0411\u0414 \u0441\u0442\u0430\u0440\u0442\u0430\u043f VESoft [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":86323,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-86322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 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