{"id":1560,"date":"2025-05-16T20:12:21","date_gmt":"2025-01-24T10:16:34","guid":{"rendered":""},"modified":"2025-02-02T00:46:17","modified_gmt":"2025-02-01T23:46:17","slug":"s-dan-ops-ttes-multi-master-postgresql-replikation-p-ubuntu-22-04","status":"publish","type":"post","link":"https:\/\/netcloud24.com\/knowledgebase\/s-dan-ops-ttes-multi-master-postgresql-replikation-p-ubuntu-22-04\/","title":{"rendered":"S\u00e5dan ops\u00e6ttes Multi-Master PostgreSQL Replikation p\u00e5 Ubuntu 22.04"},"content":{"rendered":"<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<\/p>\n<h1>\u00a0<\/h1>\n<p>I denne vejledning vil vi gennemg\u00e5, hvordan du kan ops\u00e6tte Multi-Master PostgreSQL replikation p\u00e5 en Ubuntu 22.04-server. Multi-Master replikation giver dig mulighed for at have flere PostgreSQL-servere, der kan skrive data, hvilket \u00f8ger tilg\u00e6ngelighed og skalerbarhed. Denne installation kan v\u00e6re s\u00e6rligt nyttig for brugere af en <a href=\"https:\/\/netcloud24.com?language=danish&amp;currency=4\">VPS-server<\/a>.<\/p>\n<h2>Foruds\u00e6tninger<\/h2>\n<ul>\n<li>Ubuntu 22.04 installeret p\u00e5 dine servere.<\/li>\n<li>Root-adgang eller sudo-rettigheder.<\/li>\n<li>En aktiv internetforbindelse.<\/li>\n<li>PostgreSQL installeret p\u00e5 alle servere.<\/li>\n<\/ul>\n<h2>Trin 1: Opdater systemet<\/h2>\n<p>F\u00f8rst skal du opdatere dit system for at sikre, at alle pakker er opdaterede:<\/p>\n<pre><code>sudo apt update &amp;&amp; sudo apt upgrade -y<\/code><\/pre>\n<h2>Trin 2: Installer PostgreSQL<\/h2>\n<p>Installer PostgreSQL, hvis det ikke allerede er installeret:<\/p>\n<pre><code>sudo apt install postgresql postgresql-contrib -y<\/code><\/pre>\n<h2>Trin 3: Konfigurer PostgreSQL til replikation<\/h2>\n<p>Rediger konfigurationsfilen for PostgreSQL:<\/p>\n<pre><code>sudo nano \/etc\/postgresql\/14\/main\/postgresql.conf<\/code><\/pre>\n<p>Tilf\u00f8j eller \u00e6ndre f\u00f8lgende indstillinger:<\/p>\n<pre><code>listen_addresses = '*'\r\nwal_level = logical\r\nmax_replication_slots = 10\r\nmax_wal_senders = 10\r\nhot_standby = on<\/code><\/pre>\n<h2>Trin 4: Konfigurer pg_hba.conf<\/h2>\n<p>Tillad replikation fra de andre servere ved at redigere pg_hba.conf:<\/p>\n<pre><code>sudo nano \/etc\/postgresql\/14\/main\/pg_hba.conf<\/code><\/pre>\n<p>Tilf\u00f8j f\u00f8lgende linjer for at tillade replikation:<\/p>\n<pre><code>host replication all 192.168.1.0\/24 md5<\/code><\/pre>\n<h2>Trin 5: Genstart PostgreSQL<\/h2>\n<p>Genstart PostgreSQL-tjenesten for at anvende \u00e6ndringerne:<\/p>\n<pre><code>sudo systemctl restart postgresql<\/code><\/pre>\n<h2>Trin 6: Opret replikationsbruger<\/h2>\n<p>Log ind p\u00e5 PostgreSQL som superbruger og opret en replikationsbruger:<\/p>\n<pre><code>sudo -u postgres psql\r\nCREATE ROLE replicator WITH REPLICATION LOGIN PASSWORD 'your_password';<\/code><\/pre>\n<h2>Trin 7: Ops\u00e6tning af Multi-Master Replikation<\/h2>\n<p>For hver server, skal du k\u00f8re f\u00f8lgende kommandoer for at ops\u00e6tte replikationen:<\/p>\n<pre><code>SELECT pg_create_physical_replication_slot('slot_name');<\/code><\/pre>\n<h2>Trin 8: Test Replikationen<\/h2>\n<p>Tjek status for replikationen ved at logge ind p\u00e5 PostgreSQL og k\u00f8re:<\/p>\n<pre><code>SELECT * FROM pg_stat_replication;<\/code><\/pre>\n<h2>Afslutning<\/h2>\n<p>Du har nu opsat Multi-Master PostgreSQL replikation p\u00e5 Ubuntu 22.04. Denne l\u00f8sning kan v\u00e6re s\u00e6rligt nyttig for dem, der \u00f8nsker h\u00f8j tilg\u00e6ngelighed og skalerbarhed fra en <a href=\"https:\/\/netcloud24.com?language=danish&amp;currency=4\">VPS-server<\/a>.<\/p>\n<p>&#8220;`<\/p>\n<p><a href=\"https:\/\/de.netcloud24.com\/\" target=\"_blank\">Windows VPS Deutschland<\/a><\/p>\n<p><a href=\"https:\/\/es.netcloud24.com\/\" target=\"_blank\">Windows VPS Espa\u00f1a<\/a><\/p>\n<p><a href=\"https:\/\/nl.netcloud24.com\/\" target=\"_blank\">Windows VPS Nederland<\/a><\/p>\n<p><a href=\"https:\/\/it.netcloud24.com\/\" target=\"_blank\">Windows VPS Italia<\/a><\/p>\n<p><a href=\"https:\/\/pt.netcloud24.com\/\" target=\"_blank\">Windows VPS Portugal<\/a><\/p>\n<p><a href=\"https:\/\/it.netcloud24.com\/\" target=\"_blank\">VPS Windows Italia<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS Sverige<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS Norge<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS T\u00fcrkiye<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows RDS (Remote Desktop Services)<\/a><\/p>\n<p><a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\">Windows VPS<\/a><\/p>\n<div class=\"post-author-box\" style=\"border-top:1px solid #ddd;margin-top:20px;padding-top:15px;\">\n<p><strong>Author:<\/strong> \u0141ukasz Bodziony<\/p>\n<p><strong>Website:<\/strong> <a href=\"https:\/\/ca.netcloud24.com\" target=\"_blank\" rel=\"dofollow\">Windows VPS<\/a><\/p>\n<p><em>\u0141ukasz Bodziony is the CEO and founder of <a href=\"https:\/\/netcloud24.com\" target=\"_blank\" rel=\"dofollow\">NETCLOUD24<\/a>, a global VPS hosting brand proudly originating from Poland. With extensive experience in cloud computing, virtualization, and server management, he delivers high-performance <strong>Windows VPS<\/strong> and <strong>Remote Desktop Services (RDS)<\/strong> solutions to clients across Europe, North America, and beyond.<\/em><\/p>\n<p><em>His expertise covers a wide range of technologies, including <strong>Microsoft Azure<\/strong>, <strong>Proxmox VE<\/strong>, <strong>Amazon Web Services (AWS)<\/strong>, and numerous other virtualization and cloud platforms.<\/em><\/p>\n<p><em>Beyond running his hosting business, \u0141ukasz also provides <strong>professional paid server configuration and optimization services<\/strong> for companies and individuals. Outside of work, he is dedicated to caring for his children and building a secure future for them.<\/em><\/p>\n<p><em>If you are interested in working with him or need expert assistance with your hosting, cloud environment, or server setup, feel free to reach out via <a href=\"https:\/\/ca.netcloud24.com\" target=\"_blank\" rel=\"dofollow\">Windows VPS<\/a>.<\/em><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 \u00a0 \u00a0 I denne vejledning vil vi gennemg\u00e5, hvordan du kan ops\u00e6tte Multi-Master PostgreSQL replikation p\u00e5 en Ubuntu 22.04-server. Multi-Master replikation giver dig mulighed for at have\u2026<\/p>\n","protected":false},"author":1,"featured_media":3421,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[],"tags":[14,12,11,23,20,21,22,17,7,8,6,10,18,19,15,24,16,5,13,9],"class_list":["post-1560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-cheapvps","tag-cloudvps","tag-hostingvps","tag-rds","tag-rdscal","tag-remotedesktop","tag-remotedesktopvps","tag-servervps","tag-ukvps","tag-virtualserver","tag-vpshosting","tag-vpsserver","tag-vpssolutions","tag-vpswindows","tag-vpswithwindows","tag-windowsrds","tag-windowsserver","tag-windowsvps","tag-windowsvpshosting","tag-windowsvpsuk"],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts\/1560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/comments?post=1560"}],"version-history":[{"count":0,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts\/1560\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/media\/3421"}],"wp:attachment":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/media?parent=1560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/categories?post=1560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/tags?post=1560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}