{"id":103994,"date":"2022-05-10T09:36:51","date_gmt":"2022-05-10T07:36:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-litestream-s-realizacziej-sistemy-replikaczii-dlya-sqlite"},"modified":"2022-05-10T09:36:51","modified_gmt":"2022-05-10T07:36:51","slug":"predstavlen-litestream-s-realizacziej-sistemy-replikaczii-dlya-sqlite","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/predstavlen-litestream-s-realizacziej-sistemy-replikaczii-dlya-sqlite","title":{"rendered":"Litestream wurde mit einem Implementierungssystem zur Replikation f\u00fcr SQLite vorgestellt.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ben Johnson, der Autor der NoSQL-Datenbank BoltDB, hat das Projekt Litestream vorgestellt, eine Erweiterung zur Organisation der Datenreplikation in SQLite. Litestream erfordert keine \u00c4nderungen an SQLite und kann mit allen Anwendungen, die diese Bibliothek verwenden, arbeiten. Die Replikation erfolgt durch einen separat ausgef\u00fchrten Hintergrundprozess, der \u00c4nderungen in den Datenbankdateien \u00fcberwacht und sie in eine andere Datei oder in einen externen Speicher \u00fcbertr\u00e4gt. Der Projektcode ist in der Programmiersprache Go geschrieben und wird unter der Apache 2.0-Lizenz ver\u00f6ffentlicht.      <\/p>\n<p>Alle Interaktionen mit der Datenbank erfolgen \u00fcber die standardm\u00e4\u00dfige SQLite-API, d.h. Litestream greift nicht direkt in den Betrieb ein, beeinflusst die Leistung nicht und kann den Inhalt der Datenbank nicht besch\u00e4digen, was Litestream vorteilhaft von L\u00f6sungen wie Rqlite und Dqlite unterscheidet. \u00c4nderungen werden durch die Aktivierung des WAL-Protokolls (\"Write-Ahead Log\") in SQLite nachverfolgt. Zur Einsparung von Speicherplatz aggregiert das System regelm\u00e4\u00dfig den \u00c4nderungsstrom in Schnappsch\u00fcsse der Datenbank, auf denen andere \u00c4nderungen beginnen sich anzusammeln. Die Erstellung der Schnappsch\u00fcsse kann in den Einstellungen festgelegt werden, zum Beispiel k\u00f6nnen Schnappsch\u00fcsse einmal t\u00e4glich oder einmal st\u00fcndlich erstellt werden.          <\/p>\n<p>Die Hauptanwendungsgebiete von Litestream umfassen sicheres Backup und Verteilung der Leseauslastung auf mehrere <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/de\/server\/\"   title=\"Server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1643\">Server<\/a>. Der \u00c4nderungsstrom wird in Speicherl\u00f6sungen wie Amazon S3, Azure Blob Storage, Backblaze B2, DigitalOcean Spaces, Scaleway Object Storage, Google Cloud Storage, Linode Object Storage oder auf jeden externen Host, der das SFTP-Protokoll unterst\u00fctzt, \u00fcbertragen. Im Falle einer Besch\u00e4digung des Inhalts der Hauptdatenbank kann eine Sicherung aus dem Zustand zu einem bestimmten Zeitpunkt, einer bestimmten \u00c4nderung, der letzten \u00c4nderung oder einem festgelegten Schnappschuss wiederhergestellt werden.<br \/>\n<br \/>Quelle: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57162\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0411\u0435\u043d \u0414\u0436\u043e\u043d\u0441\u043e\u043d (Ben Johnson), \u0430\u0432\u0442\u043e\u0440 NoSQL-\u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430 BoltDB, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043f\u0440\u043e\u0435\u043a\u0442 Litestream, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0443 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 SQLite. Litestream \u043d\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0432\u043d\u0435\u0441\u0435\u043d\u0438\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432 SQLite \u0438 \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0441 \u043b\u044e\u0431\u044b\u043c\u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u043c\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u043c\u0438 \u0434\u0430\u043d\u043d\u0443\u044e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443. \u0420\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u0435\u0439 \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442\u0441\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0439 \u0444\u043e\u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u0435\u0442 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u0444\u0430\u0439\u043b\u0430\u0445 \u0441 \u0411\u0414 \u0438 \u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0438\u0442 \u0438\u0445 \u0432 \u0434\u0440\u0443\u0433\u043e\u0439 \u0444\u0430\u0439\u043b \u0438\u043b\u0438 \u0432\u043e [&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-103994","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0411\u0435\u043d \u0414\u0436\u043e\u043d\u0441\u043e\u043d (Ben Johnson), \u0430\u0432\u0442\u043e\u0440 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