{"id":5313,"date":"2026-09-03T11:58:04","date_gmt":"2026-09-03T08:58:04","guid":{"rendered":"https:\/\/maram.iq\/blogs\/database-high-availability-primary-replica-failover\/"},"modified":"2026-09-03T12:13:40","modified_gmt":"2026-09-03T09:13:40","slug":"database-high-availability-primary-replica-failover","status":"publish","type":"post","link":"https:\/\/maram.iq\/blogs\/database-high-availability-primary-replica-failover\/","title":{"rendered":"\u0643\u064a\u0641 \u062a\u0646\u0642\u0644 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0646 Server \u0648\u0627\u062d\u062f \u0625\u0644\u0649 High Availability\u061f"},"content":{"rendered":"\n<p>\u0637\u0627\u0644\u0645\u0627 \u0643\u0627\u0646 \u0645\u0634\u0631\u0648\u0639\u0643 \u0635\u063a\u064a\u0631\u064b\u0627\u060c \u062e\u0627\u062f\u0645 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0648\u0627\u062d\u062f \u064a\u0643\u0641\u064a \u0648\u064a\u0631\u064a\u062d. \u0644\u0643\u0646 \u062d\u064a\u0646 \u064a\u0643\u0628\u0631 \u2014 \u0645\u062a\u062c\u0631 \u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a \u0641\u064a \u0645\u0648\u0633\u0645 \u0627\u0644\u0630\u0631\u0648\u0629\u060c \u0646\u0638\u0627\u0645 <strong>ERP<\/strong> \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u064a\u0647 \u0627\u0644\u0634\u0631\u0643\u0629 \u064a\u0648\u0645\u064a\u064b\u0651\u0627\u060c \u0645\u0646\u0635\u0651\u0629 <strong>SaaS<\/strong> \u064a\u062f\u0641\u0639 \u0639\u0645\u0644\u0627\u0624\u0647\u0627 \u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u2014 \u064a\u0635\u0628\u062d \u0647\u0630\u0627 \u0627\u0644\u062e\u0627\u062f\u0645 \u0627\u0644\u0648\u0627\u062d\u062f <strong>\u0646\u0642\u0637\u0629 \u0627\u0644\u0641\u0634\u0644 \u0627\u0644\u0648\u062d\u064a\u062f\u0629 (Single Point of Failure)<\/strong>: \u0644\u062d\u0638\u0629 \u0633\u0642\u0648\u0637\u0647 \u064a\u062a\u0648\u0642\u0651\u0641 \u0643\u0644 \u0634\u064a\u0621\u060c \u0648\u0631\u0628\u0645\u0627 \u062a\u0641\u0642\u062f \u0628\u064a\u0627\u0646\u0627\u062a. \u0627\u0644\u062d\u0644\u0651 \u0647\u0648 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0625\u0644\u0649 <strong>Database High Availability<\/strong> (\u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a \u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a). \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0646\u0634\u0631\u062d \u0643\u064a\u0641 \u062a\u0646\u0642\u0644 \u0642\u0627\u0639\u062f\u062a\u0643 \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f \u0625\u0644\u0649 \u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u062e\u0637\u0648\u0629\u064b \u0628\u062e\u0637\u0648\u0629 \u2014 <strong>Primary\/Replica<\/strong>\u060c \u0648<strong>Failover<\/strong>\u060c \u0648<strong>Backups<\/strong>\u060c \u0648<strong>Proxy<\/strong>\u060c \u0648\u0645\u0639\u0627\u0644\u062c\u0629 <strong>Replication Lag<\/strong> \u2014 \u0645\u0639 \u0625\u062b\u0628\u0627\u062a \u062d\u0642\u064a\u0642\u064a \u0623\u0639\u062f\u062f\u0646\u0627\u0647 \u0641\u0639\u0644\u064a\u064b\u0651\u0627 \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645.<\/p>\n\n\n<div class=\"quick-answer\" style=\"background:#f0f9ff;border:1px solid #bae6fd;border-radius:12px;padding:16px 18px;margin:1.5rem 0;\"><p style=\"font-weight:700;color:#0369a1;margin:0 0 8px;font-size:1.02rem;\">&#9889; \u0627\u0644\u0625\u062c\u0627\u0628\u0629 \u0627\u0644\u0645\u062e\u062a\u0635\u0631\u0629<\/p><p style=\"margin:0;line-height:1.9;\">\u0627\u0646\u062a\u0642\u0644 \u062a\u062f\u0631\u064a\u062c\u064a\u064b\u0627: (1) \u062b\u0628\u0651\u062a \u0646\u0633\u062e\u064b\u0627 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u064b\u0627 \u0645\u0639 PITR\u060c (2) \u0623\u0636\u0650\u0641 Replica \u0639\u0628\u0631 Streaming Replication \u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0642\u0631\u0627\u0621\u0629\u060c (3) \u0623\u062f\u062e\u0650\u0644 Proxy \u064a\u0641\u0635\u0644 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0639\u0646 \u0627\u0644\u0642\u0631\u0627\u0621\u0629\u060c (4) \u062c\u0647\u0651\u0632 Failover \u0644\u062a\u0631\u0642\u064a\u0629 \u0627\u0644\u0646\u0633\u062e\u0629 \u0639\u0646\u062f \u0627\u0644\u0639\u0637\u0644. \u0627\u0644\u0646\u062a\u064a\u062c\u0629: \u0644\u0627 \u0646\u0642\u0637\u0629 \u0641\u0634\u0644 \u0648\u0627\u062d\u062f\u0629 \u2014 \u0623\u064a \u0639\u0642\u062f\u0629 \u062a\u0633\u0642\u0637 \u0648\u0623\u062e\u0631\u0649 \u062c\u0627\u0647\u0632\u0629 \u062a\u062d\u0644\u0651 \u0645\u062d\u0644\u0651\u0647\u0627 \u062f\u0648\u0646 \u062a\u0648\u0642\u0651\u0641.<\/p><\/div>\n\n\n<figure style=\"margin:1.5rem 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/maram.iq\/blogs\/wp-content\/uploads\/2026\/08\/db-ha-arch.png\" alt=\"\u0628\u0646\u064a\u0629 Database High Availability: Proxy \u0648Primary \u0648Replica \u0648Failover \u0648Backups\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:12px;box-shadow:0 4px 16px rgba(15,23,42,.12);\"\/><figcaption style=\"color:#64748b;font-size:.9rem;margin-top:.5rem;\">\u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631: Proxy \u064a\u0641\u0635\u0644 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0639\u0646 \u0627\u0644\u0642\u0631\u0627\u0621\u0629\u060c \u0648Replica \u062c\u0627\u0647\u0632\u0629\u060c \u0648Failover \u062a\u0644\u0642\u0627\u0626\u064a\u060c \u0648\u0646\u0633\u062e \u0645\u0633\u062a\u0645\u0631<\/figcaption><\/figure>\n\n\n<div class=\"table-of-contents\" style=\"background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;margin:1.5rem 0;\"><p style=\"font-weight:700;font-size:1.05rem;margin-bottom:.75rem;\">\u0645\u062d\u062a\u0648\u064a\u0627\u062a \u0627\u0644\u062f\u0644\u064a\u0644 \u0627\u0644\u0634\u0627\u0645\u0644<\/p><ul style=\"list-style:none;padding:0;margin:0;\"><li style=\"padding:.25rem 0;\"><a href=\"#s1\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u0644\u0645\u0627\u0630\u0627 \u0627\u0644\u062e\u0627\u062f\u0645 \u0627\u0644\u0648\u0627\u062d\u062f \u062e\u0637\u0631 \u0639\u0644\u0649 \u0645\u0634\u0631\u0648\u0639\u0643\u061f<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s2\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u0645\u0627 \u0647\u0648 Database High Availability\u061f<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s3\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u0627\u0644\u0645\u0641\u0627\u0647\u064a\u0645 \u0627\u0644\u0633\u062a\u0651\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u0643\u0645 \u0627\u0644\u062a\u0648\u0627\u0641\u0631<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s4\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; Primary \u0648Replica: \u062a\u0642\u0633\u064a\u0645 \u0627\u0644\u0623\u062f\u0648\u0627\u0631<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s5\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; Replication Lag: \u0627\u0644\u062a\u062d\u062f\u0651\u064a \u0627\u0644\u062e\u0641\u064a<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s6\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; Failover: \u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0639\u0646\u062f \u0627\u0644\u0639\u0637\u0644\u061f<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s7\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; Proxy: \u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s8\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; Backups \u0644\u064a\u0633\u062a Replica<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s9\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u0625\u062b\u0628\u0627\u062a \u062d\u0642\u064a\u0642\u064a \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s10\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u062e\u0627\u0631\u0637\u0629 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u0639\u0645\u0644\u064a\u0629<\/a><\/li><li style=\"padding:.25rem 0;\"><a href=\"#s11\" style=\"color:#4f46e5;text-decoration:none;\">&#8592; \u0627\u0644\u062e\u0644\u0627\u0635\u0629<\/a><\/li><\/ul><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"s1\">\u0644\u0645\u0627\u0630\u0627 \u0627\u0644\u062e\u0627\u062f\u0645 \u0627\u0644\u0648\u0627\u062d\u062f \u062e\u0637\u0631 \u0639\u0644\u0649 \u0645\u0634\u0631\u0648\u0639\u0643\u061f<\/h2>\n\n\n<p>\u062e\u0627\u062f\u0645 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0648\u0627\u062d\u062f \u064a\u0639\u0646\u064a \u0623\u0646 \u0643\u0644 \u0628\u064a\u0636\u0643 \u0641\u064a \u0633\u0644\u0651\u0629 \u0648\u0627\u062d\u062f\u0629. \u0623\u064a \u0639\u0637\u0644 \u2014 \u0639\u062a\u0627\u062f\u060c \u0642\u0631\u0635\u060c \u0627\u0646\u0642\u0637\u0627\u0639 \u0643\u0647\u0631\u0628\u0627\u0621\u060c \u062e\u0637\u0623 \u062a\u062d\u062f\u064a\u062b \u2014 \u064a\u0648\u0642\u0641 \u0627\u0644\u062e\u062f\u0645\u0629 \u0628\u0627\u0644\u0643\u0627\u0645\u0644 \u062d\u062a\u0649 \u062a\u064f\u0635\u0644\u062d\u0647 \u0623\u0648 \u062a\u0633\u062a\u0639\u064a\u062f \u0645\u0646 \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629 (\u0648\u0647\u0648 \u0645\u0627 \u0642\u062f \u064a\u0633\u062a\u063a\u0631\u0642 \u0633\u0627\u0639\u0627\u062a). \u0644\u0645\u0634\u0627\u0631\u064a\u0639 <strong>SaaS<\/strong> \u0648<strong>ERP<\/strong> \u0648\u0627\u0644\u0645\u062a\u0627\u062c\u0631 \u0627\u0644\u0643\u0628\u064a\u0631\u0629\u060c \u0647\u0630\u0627 \u0627\u0644\u062a\u0648\u0642\u0651\u0641 \u064a\u062a\u0631\u062c\u0645 \u0645\u0628\u0627\u0634\u0631\u0629\u064b \u0625\u0644\u0649 \u062e\u0633\u0627\u0626\u0631 \u0645\u0627\u0644\u064a\u0629 \u0648\u0641\u0642\u062f\u0627\u0646 \u062b\u0642\u0629 \u0627\u0644\u0639\u0645\u0644\u0627\u0621.<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>\u062a\u0648\u0642\u0651\u0641 \u0643\u0627\u0645\u0644:<\/strong> \u0633\u0642\u0648\u0637 \u0627\u0644\u062e\u0627\u062f\u0645 = \u0633\u0642\u0648\u0637 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0643\u0644\u0651\u0647\u060c \u0644\u0627 \u0642\u0631\u0627\u0621\u0629 \u0648\u0644\u0627 \u0643\u062a\u0627\u0628\u0629.<\/li><li><strong>\u062e\u0637\u0631 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a:<\/strong> \u0625\u0646 \u062a\u0644\u0641 \u0627\u0644\u0642\u0631\u0635 \u0642\u0628\u0644 \u0622\u062e\u0631 \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629\u060c \u062a\u0636\u064a\u0639 \u0627\u0644\u0645\u0639\u0627\u0645\u0644\u0627\u062a \u0628\u064a\u0646\u0647\u0645\u0627.<\/li><li><strong>\u0627\u0633\u062a\u0639\u0627\u062f\u0629 \u0628\u0637\u064a\u0626\u0629:<\/strong> \u0627\u0633\u062a\u0631\u062c\u0627\u0639 \u0642\u0627\u0639\u062f\u0629 \u0643\u0628\u064a\u0631\u0629 \u0645\u0646 \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629 \u0642\u062f \u064a\u0633\u062a\u063a\u0631\u0642 \u0633\u0627\u0639\u0627\u062a \u0645\u0646 \u0627\u0644\u062a\u0648\u0642\u0651\u0641.<\/li><li><strong>\u0644\u0627 \u0645\u062c\u0627\u0644 \u0644\u0644\u0635\u064a\u0627\u0646\u0629:<\/strong> \u0623\u064a \u062a\u0631\u0642\u064a\u0629 \u0623\u0648 \u0635\u064a\u0627\u0646\u0629 \u062a\u062a\u0637\u0644\u0651\u0628 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062e\u062f\u0645\u0629.<\/li><\/ul>\n\n\n<p>\u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a \u064a\u0639\u0627\u0644\u062c \u0647\u0630\u0627 \u0643\u0644\u0651\u0647 \u0628\u0645\u0628\u062f\u0623 \u0628\u0633\u064a\u0637: <strong>\u0644\u0627 \u0646\u0642\u0637\u0629 \u0641\u0634\u0644 \u0648\u0627\u062d\u062f\u0629<\/strong>. \u062f\u0627\u0626\u0645\u064b\u0627 \u0647\u0646\u0627\u0643 \u0639\u0642\u062f\u0629 \u0623\u062e\u0631\u0649 \u062c\u0627\u0647\u0632\u0629 \u062a\u062d\u0644\u0651 \u0645\u062d\u0644\u0651 \u0623\u064a \u0639\u0642\u062f\u0629 \u062a\u0633\u0642\u0637.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s2\">\u0645\u0627 \u0647\u0648 Database High Availability\u061f<\/h2>\n\n\n<p><strong>Database High Availability<\/strong> \u064a\u0639\u0646\u064a \u062a\u0635\u0645\u064a\u0645 \u0628\u0646\u064a\u0629 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0628\u062d\u064a\u062b \u062a\u0633\u062a\u0645\u0631\u0651 \u0627\u0644\u062e\u062f\u0645\u0629 \u0631\u063a\u0645 \u0623\u0639\u0637\u0627\u0644 \u0627\u0644\u0639\u062a\u0627\u062f \u0623\u0648 \u0627\u0644\u0628\u0631\u0645\u062c\u064a\u0627\u062a. \u062c\u0648\u0647\u0631\u0647 \u062a\u0634\u063a\u064a\u0644 <strong>\u0623\u0643\u062b\u0631 \u0645\u0646 \u0646\u0633\u062e\u0629<\/strong> \u0645\u0646 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a\u0643 \u0639\u0644\u0649 \u062e\u0648\u0627\u062f\u0645 \u0645\u0646\u0641\u0635\u0644\u0629\u060c \u0645\u0639 \u0645\u0632\u0627\u0645\u0646\u0629 \u0645\u0633\u062a\u0645\u0631\u0651\u0629 \u0628\u064a\u0646\u0647\u0627\u060c \u0648\u0622\u0644\u064a\u0629 \u062a\u062d\u0648\u0651\u0644 \u062a\u0644\u0642\u0627\u0626\u064a \u0639\u0646\u062f \u0627\u0644\u0639\u0637\u0644. \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0625\u0644\u064a\u0647 \u0644\u064a\u0633 \u0642\u0641\u0632\u0629\u064b \u0648\u0627\u062d\u062f\u0629 \u0628\u0644 \u0631\u062d\u0644\u0629 \u062a\u062f\u0631\u064a\u062c\u064a\u0629:<\/p>\n\n\n<figure style=\"margin:1.5rem 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/maram.iq\/blogs\/wp-content\/uploads\/2026\/08\/db-ha-journey.png\" alt=\"\u0631\u062d\u0644\u0629 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f \u0625\u0644\u0649 High Availability: Replica \u062b\u0645 Failover \u0648Proxy \u062b\u0645 Backups\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:12px;box-shadow:0 4px 16px rgba(15,23,42,.12);\"\/><figcaption style=\"color:#64748b;font-size:.9rem;margin-top:.5rem;\">\u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u062a\u062f\u0631\u064a\u062c\u064a: \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f (\u0646\u0642\u0637\u0629 \u0641\u0634\u0644) \u0625\u0644\u0649 \u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0643\u0627\u0645\u0644\u0629<\/figcaption><\/figure>\n\n\n<p>\u062a\u0628\u062f\u0623 \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f (\u0645\u0642\u0628\u0648\u0644 \u0644\u0644\u0628\u062f\u0627\u064a\u0629)\u060c \u062b\u0645\u0651 \u062a\u0636\u064a\u0641 <strong>Replica<\/strong> \u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0648\u062a\u0648\u0641\u064a\u0631 \u0646\u0633\u062e\u0629 \u062d\u064a\u0651\u0629\u060c \u062b\u0645\u0651 <strong>Failover + Proxy<\/strong> \u0644\u0644\u062a\u062d\u0648\u0651\u0644 \u0627\u0644\u062a\u0644\u0642\u0627\u0626\u064a\u060c \u0648\u0623\u062e\u064a\u0631\u064b\u0627 <strong>Backups\/PITR<\/strong> \u0644\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0643\u0627\u0645\u0644\u0629. \u0623\u0636\u0650\u0641 \u0643\u0644 \u0637\u0628\u0642\u0629 \u062d\u0633\u0628 \u062d\u0633\u0627\u0633\u064a\u0629 \u0645\u0634\u0631\u0648\u0639\u0643 \u0644\u0644\u062a\u0648\u0642\u0651\u0641 \u2014 \u0644\u0627 \u062f\u0627\u0639\u064a \u0644\u0644\u0642\u0641\u0632 \u0625\u0644\u0649 \u0623\u0642\u0635\u0649 \u062a\u0639\u0642\u064a\u062f \u0645\u0646 \u0627\u0644\u064a\u0648\u0645 \u0627\u0644\u0623\u0648\u0644.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s3\">\u0627\u0644\u0645\u0641\u0627\u0647\u064a\u0645 \u0627\u0644\u0633\u062a\u0651\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u0643\u0645 \u0627\u0644\u062a\u0648\u0627\u0641\u0631<\/h2>\n\n\n<p>\u0642\u0628\u0644 \u0627\u0644\u0628\u0646\u0627\u0621\u060c \u0627\u0641\u0647\u0645 \u0627\u0644\u0645\u0635\u0637\u0644\u062d\u0627\u062a \u0627\u0644\u0633\u062a\u0651\u0629 \u0627\u0644\u062a\u064a \u0633\u062a\u062a\u0643\u0631\u0651\u0631 \u0641\u064a \u0643\u0644 \u0642\u0631\u0627\u0631 \u2014 \u0643\u0644\u064c\u0651 \u064a\u062d\u0644\u0651 \u062c\u0632\u0621\u064b\u0627 \u0645\u0646 \u0645\u0639\u0627\u062f\u0644\u0629 \u00ab\u0644\u0627 \u062a\u0648\u0642\u0651\u0641 \u0648\u0644\u0627 \u0641\u0642\u062f\u0627\u0646 \u0628\u064a\u0627\u0646\u0627\u062a\u00bb:<\/p>\n\n\n<figure style=\"margin:1.5rem 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/maram.iq\/blogs\/wp-content\/uploads\/2026\/08\/db-ha-concepts.png\" alt=\"\u0645\u0641\u0627\u0647\u064a\u0645 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a: Primary\/Replica \u0648Replication \u0648Lag \u0648Failover \u0648Proxy \u0648Backups\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:12px;box-shadow:0 4px 16px rgba(15,23,42,.12);\"\/><figcaption style=\"color:#64748b;font-size:.9rem;margin-top:.5rem;\">\u0633\u062a\u0651\u0629 \u0645\u0641\u0627\u0647\u064a\u0645 \u0623\u0633\u0627\u0633\u064a\u0629 \u064a\u062c\u0628 \u0641\u0647\u0645\u0647\u0627 \u0642\u0628\u0644 \u062a\u0635\u0645\u064a\u0645 \u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631<\/figcaption><\/figure>\n\n\n<ul class=\"wp-block-list\"><li><strong>Primary \/ Replica:<\/strong> \u0639\u0642\u062f\u0629 \u062a\u0642\u0628\u0644 \u0627\u0644\u0643\u062a\u0627\u0628\u0629\u060c \u0648\u0648\u0627\u062d\u062f\u0629 \u0623\u0648 \u0623\u0643\u062b\u0631 \u062a\u062e\u062f\u0645 \u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0648\u062a\u0628\u0642\u0649 \u062c\u0627\u0647\u0632\u0629.<\/li><li><strong>Streaming Replication:<\/strong> \u0646\u0633\u062e \u062a\u063a\u064a\u064a\u0631\u0627\u062a Primary (\u0633\u062c\u0644\u0651 WAL) \u0625\u0644\u0649 \u0627\u0644\u0646\u064f\u0651\u0633\u062e \u0644\u062d\u0638\u064a\u064b\u0651\u0627.<\/li><li><strong>Replication Lag:<\/strong> \u0627\u0644\u062a\u0623\u062e\u0651\u0631 \u0628\u064a\u0646 \u0643\u062a\u0627\u0628\u0629 Primary \u0648\u0638\u0647\u0648\u0631\u0647\u0627 \u0641\u064a Replica.<\/li><li><strong>Failover:<\/strong> \u062a\u0631\u0642\u064a\u0629 Replica \u0625\u0644\u0649 Primary \u0639\u0646\u062f \u0633\u0642\u0648\u0637 \u0627\u0644\u0623\u0635\u0644\u064a.<\/li><li><strong>Proxy \/ Router:<\/strong> \u064a\u0648\u062c\u0651\u0647 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627 \u0628\u0644\u0627 \u062a\u063a\u064a\u064a\u0631 \u0643\u0648\u062f \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/li><li><strong>Backups \u2260 Replica:<\/strong> \u0627\u0644\u0646\u0633\u062e\u0629 \u0627\u0644\u062d\u064a\u0651\u0629 \u0644\u064a\u0633\u062a \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629 \u2014 \u062a\u062d\u062a\u0627\u062c \u0646\u0633\u062e\u064b\u0627 \u0645\u0646\u0641\u0635\u0644\u0629 \u0645\u0639 PITR.<\/li><\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"s4\">Primary \u0648Replica: \u062a\u0642\u0633\u064a\u0645 \u0627\u0644\u0623\u062f\u0648\u0627\u0631<\/h2>\n\n\n<p>\u0623\u0633\u0627\u0633 <strong>Database High Availability<\/strong> \u0647\u0648 \u0646\u0645\u0637 Primary\/Replica. \u0639\u0642\u062f\u0629 \u0648\u0627\u062d\u062f\u0629 (<strong>Primary<\/strong>) \u062a\u0642\u0628\u0644 \u0643\u0644 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0643\u062a\u0627\u0628\u0629\u060c \u0648\u0639\u0642\u062f\u0629 \u0623\u0648 \u0623\u0643\u062b\u0631 (<strong>Replicas<\/strong>) \u062a\u0646\u0633\u062e \u0628\u064a\u0627\u0646\u0627\u062a\u0647\u0627 \u0645\u0646\u0647\u0627 \u0628\u0627\u0633\u062a\u0645\u0631\u0627\u0631 \u0648\u062a\u062e\u062f\u0645 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0642\u0631\u0627\u0621\u0629. \u0647\u0630\u0627 \u064a\u062d\u0642\u0651\u0642 \u0647\u062f\u0641\u064a\u0646 \u0645\u0639\u064b\u0627: \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u062d\u0645\u0644 (\u0627\u0644\u0642\u0631\u0627\u0621\u0627\u062a \u0627\u0644\u0643\u062b\u064a\u0631\u0629 \u062a\u0630\u0647\u0628 \u0644\u0644\u0646\u064f\u0651\u0633\u062e)\u060c \u0648\u0627\u0644\u062c\u0627\u0647\u0632\u064a\u0629 (\u0644\u0648 \u0633\u0642\u0637 Primary\u060c \u0646\u0633\u062e\u0629 \u0645\u062d\u062f\u0651\u062b\u0629 \u062c\u0627\u0647\u0632\u0629 \u0644\u0644\u062a\u0631\u0642\u064a\u0629).<\/p>\n\n\n<p>\u0641\u064a PostgreSQL \u064a\u062a\u0645\u0651 \u0647\u0630\u0627 \u0639\u0628\u0631 <strong>Streaming Replication<\/strong>: \u064a\u0628\u062b\u0651 Primary \u0633\u062c\u0644\u0651 \u0627\u0644\u062a\u063a\u064a\u064a\u0631\u0627\u062a (WAL) \u0625\u0644\u0649 \u0627\u0644\u0646\u064f\u0651\u0633\u062e \u0641\u0648\u0631 \u062d\u062f\u0648\u062b\u0647\u0627. \u0625\u0639\u062f\u0627\u062f \u0646\u0633\u062e\u0629 \u0641\u0639\u0644\u064a\u064b\u0651\u0627 \u0623\u0628\u0633\u0637 \u0645\u0645\u0651\u0627 \u064a\u0628\u062f\u0648:<\/p>\n\n\n<pre class=\"wp-block-code\"><code># \u0639\u0644\u0649 \u0627\u0644\u0640Replica: \u0623\u062e\u0630 \u0646\u0633\u062e\u0629 \u0643\u0627\u0645\u0644\u0629 \u0645\u0646 Primary \u062b\u0645\u0651 \u0628\u062f\u0621 \u0627\u0644\u0628\u062b\u0651\npg_basebackup -h primary-host -U repl -D \/var\/lib\/postgresql\/replica -R -Xs -P\n# \u062b\u0645\u0651 \u062a\u0634\u063a\u064a\u0644\u0647\u0627 \u0641\u064a \u0648\u0636\u0639 standby \u0641\u062a\u0644\u062d\u0642 Primary \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0648\u062a\u0628\u0642\u0649 \u0645\u062d\u062f\u0651\u062b\u0629<\/code><\/pre>\n\n\n<p style=\"background:#eff6ff;border-right:4px solid #3b82f6;padding:14px 16px;border-radius:8px;\"><strong>\u0645\u0644\u0627\u062d\u0638\u0629:<\/strong> \u0627\u0644\u0646\u0633\u062e \u0642\u062f \u064a\u0643\u0648\u0646 <strong>\u0645\u062a\u0632\u0627\u0645\u0646\u064b\u0627 (synchronous)<\/strong> \u2014 \u0644\u0627 \u062a\u064f\u0624\u0643\u064e\u0651\u062f \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0625\u0644\u0627 \u0628\u0639\u062f \u0648\u0635\u0648\u0644\u0647\u0627 \u0644\u0644\u0646\u0633\u062e\u0629 (\u0623\u0645\u0627\u0646 \u0623\u0639\u0644\u0649\u060c \u0628\u0637\u0621 \u0628\u0633\u064a\u0637) \u2014 \u0623\u0648 <strong>\u063a\u064a\u0631 \u0645\u062a\u0632\u0627\u0645\u0646 (asynchronous)<\/strong> \u2014 \u0623\u0633\u0631\u0639 \u0644\u0643\u0646 \u0645\u0639 \u0627\u062d\u062a\u0645\u0627\u0644 \u062a\u0623\u062e\u0651\u0631 \u0628\u0633\u064a\u0637. \u0627\u0644\u0623\u063a\u0644\u0628\u064a\u0629 \u062a\u0628\u062f\u0623 \u0628\u063a\u064a\u0631 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s5\">Replication Lag: \u0627\u0644\u062a\u062d\u062f\u0651\u064a \u0627\u0644\u062e\u0641\u064a<\/h2>\n\n\n<p>\u0623\u0647\u0645\u0651 \u0645\u0627 \u064a\u064f\u063a\u0641\u0644 \u0641\u064a \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a \u0647\u0648 <strong>Replication Lag<\/strong>: \u0627\u0644\u0641\u0627\u0631\u0642 \u0627\u0644\u0632\u0645\u0646\u064a \u0628\u064a\u0646 \u0643\u062a\u0627\u0628\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0639\u0644\u0649 Primary \u0648\u0638\u0647\u0648\u0631\u0647\u0627 \u0639\u0644\u0649 Replica. \u0639\u0627\u062f\u0629\u064b \u0623\u062c\u0632\u0627\u0621 \u0645\u0646 \u0627\u0644\u062b\u0627\u0646\u064a\u0629\u060c \u0644\u0643\u0646 \u062a\u062d\u062a \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0634\u062f\u064a\u062f \u0642\u062f \u064a\u0643\u0628\u0631. \u062e\u0637\u0631\u0647 \u0623\u0646\u0643 \u0625\u0646 \u0642\u0631\u0623\u062a \u0641\u0648\u0631\u064b\u0627 \u0645\u0646 Replica \u0628\u0639\u062f \u0643\u062a\u0627\u0628\u0629 \u0639\u0644\u0649 Primary\u060c \u0642\u062f \u062a\u062d\u0635\u0644 \u0639\u0644\u0649 \u0628\u064a\u0627\u0646\u0627\u062a <strong>\u0642\u062f\u064a\u0645\u0629<\/strong> (\u0645\u062b\u0644\u064b\u0627: \u0645\u0633\u062a\u062e\u062f\u0645 \u064a\u062d\u062f\u0651\u062b \u0645\u0644\u0641\u0647 \u062b\u0645\u0651 \u064a\u0631\u0627\u0647 \u063a\u064a\u0631 \u0645\u062d\u062f\u0651\u062b).<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>\u0631\u0627\u0642\u0628 \u0627\u0644\u0640Lag \u062f\u0627\u0626\u0645\u064b\u0627:<\/strong> \u0639\u0628\u0631 <code>pg_stat_replication<\/code> \u0641\u064a PostgreSQL \u0623\u0648 <code>SHOW REPLICA STATUS<\/code> \u0641\u064a MySQL.<\/li><li><strong>\u0644\u0644\u0642\u0631\u0627\u0621\u0627\u062a \u0627\u0644\u062d\u0633\u0651\u0627\u0633\u0629 \u0632\u0645\u0646\u064a\u064b\u0651\u0627:<\/strong> \u0627\u0642\u0631\u0623 \u0645\u0646 Primary \u0645\u0628\u0627\u0634\u0631\u0629\u064b (read-your-writes) \u0628\u062f\u0644 Replica.<\/li><li><strong>\u0644\u0644\u0642\u0631\u0627\u0621\u0627\u062a \u0627\u0644\u0639\u0627\u0645\u0651\u0629:<\/strong> Replica \u0645\u0645\u062a\u0627\u0632\u0629 \u2014 \u062a\u0623\u062e\u0651\u0631 \u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u063a\u064a\u0631 \u0645\u062d\u0633\u0648\u0633.<\/li><li><strong>\u0642\u0644\u0651\u0644 \u0627\u0644\u0640Lag:<\/strong> \u0628\u0634\u0628\u0643\u0629 \u0633\u0631\u064a\u0639\u0629 \u0628\u064a\u0646 \u0627\u0644\u0639\u0642\u062f\u060c \u0648\u0642\u0631\u0635 Enterprise NVMe \u0633\u0631\u064a\u0639\u060c \u0648\u0645\u0648\u0627\u0631\u062f \u0643\u0627\u0641\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0646\u0633\u062e\u0629.<\/li><\/ul>\n\n\n<p>\u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u0623\u062e\u064a\u0631\u0629 \u0645\u0647\u0645\u0651\u0629: \u0627\u0644\u0640Replica \u0627\u0644\u0628\u0637\u064a\u0626\u0629 \u062a\u062a\u0623\u062e\u0651\u0631 \u0623\u0643\u062b\u0631. \u0643\u0645\u0627 \u0634\u0631\u062d\u0646\u0627 \u0641\u064a <a href=\"https:\/\/maram.iq\/blogs\/?p=5276\">\u0644\u0645\u0627\u0630\u0627 \u062a\u0635\u0628\u062d \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0623\u0628\u0637\u0623<\/a>\u060c \u0633\u0631\u0639\u0629 \u0627\u0644\u0642\u0631\u0635 \u0648\u0627\u0644\u0640I\/O \u062a\u062d\u062f\u0651\u062f \u0642\u062f\u0631\u0629 \u0627\u0644\u0646\u0633\u062e\u0629 \u0639\u0644\u0649 \u0627\u0644\u0644\u062d\u0627\u0642 \u0628\u0640Primary.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s6\">Failover: \u0645\u0627\u0630\u0627 \u064a\u062d\u062f\u062b \u0639\u0646\u062f \u0627\u0644\u0639\u0637\u0644\u061f<\/h2>\n\n\n<p><strong>Failover<\/strong> \u0647\u0648 \u0642\u0644\u0628 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a: \u062d\u064a\u0646 \u064a\u0633\u0642\u0637 Primary\u060c \u062a\u064f\u0631\u0642\u0651\u0649 \u0625\u062d\u062f\u0649 \u0627\u0644\u0646\u064f\u0651\u0633\u062e \u0644\u062a\u0635\u0628\u062d Primary \u0627\u0644\u062c\u062f\u064a\u062f \u0641\u062a\u0633\u062a\u0645\u0631\u0651 \u0627\u0644\u0643\u062a\u0627\u0628\u0629. \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646:<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>\u064a\u062f\u0648\u064a\u064b\u0651\u0627:<\/strong> \u062a\u064f\u0635\u062f\u0631 \u0623\u0645\u0631 \u062a\u0631\u0642\u064a\u0629 \u0628\u0646\u0641\u0633\u0643 (<code>pg_ctl promote<\/code>) \u2014 \u0645\u0642\u0628\u0648\u0644 \u0644\u0645\u0634\u0627\u0631\u064a\u0639 \u062a\u062d\u062a\u0645\u0644 \u062f\u0642\u0627\u0626\u0642 \u062a\u0648\u0642\u0651\u0641.<\/li><li><strong>\u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627:<\/strong> \u0623\u062f\u0627\u0629 \u062a\u0631\u0627\u0642\u0628 Primary \u0648\u062a\u0631\u0642\u0651\u064a \u0646\u0633\u062e\u0629 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627 \u062e\u0644\u0627\u0644 \u062b\u0648\u0627\u0646\u064d \u0639\u0646\u062f \u0627\u0644\u0639\u0637\u0644 \u2014 \u0639\u0628\u0631 <strong>Patroni<\/strong> \u0623\u0648 <strong>repmgr<\/strong> \u0623\u0648 <strong>Orchestrator<\/strong>.<\/li><\/ul>\n\n\n<p>\u0627\u0644\u062a\u062d\u0648\u0651\u0644 \u0627\u0644\u062a\u0644\u0642\u0627\u0626\u064a \u0647\u0648 \u0645\u0627 \u064a\u062d\u0642\u0651\u0642 \u00ab\u0634\u0628\u0647 \u0635\u0641\u0631 \u062a\u0648\u0642\u0651\u0641\u00bb\u060c \u0644\u0643\u0646\u0651\u0647 \u064a\u062a\u0637\u0644\u0651\u0628 \u0636\u0628\u0637\u064b\u0627 \u062f\u0642\u064a\u0642\u064b\u0627 \u0644\u062a\u062c\u0646\u0651\u0628 <em>split-brain<\/em> (\u062a\u0631\u0642\u064a\u0629 \u0646\u0633\u062e\u062a\u064a\u0646 \u0645\u0639\u064b\u0627). \u0627\u0628\u062f\u0623 \u0628\u0627\u0644\u062a\u0631\u0642\u064a\u0629 \u0627\u0644\u064a\u062f\u0648\u064a\u0629 \u0627\u0644\u0645\u0641\u0647\u0648\u0645\u0629\u060c \u062b\u0645\u0651 \u0623\u062a\u0645\u062a\u0647\u0627 \u062d\u064a\u0646 \u062a\u0646\u0636\u062c \u0628\u0646\u064a\u062a\u0643.<\/p>\n\n\n<p style=\"background:#ecfdf5;border-right:4px solid #16a34a;padding:14px 16px;border-radius:8px;\"><strong>&#128161; \u0646\u0635\u064a\u062d\u0629:<\/strong> \u0628\u0639\u062f \u0623\u064a Failover\u060c \u062a\u0630\u0643\u0651\u0631 \u0623\u0646 Primary \u0627\u0644\u0642\u062f\u064a\u0645 \u062d\u064a\u0646 \u064a\u0639\u0648\u062f \u064a\u062c\u0628 \u0623\u0646 \u064a\u0646\u0636\u0645\u0651 \u0643\u0640Replica \u062c\u062f\u064a\u062f\u0629 (\u0644\u0627 \u0643\u0640Primary \u062b\u0627\u0646\u064d) \u2014 \u0648\u0625\u0644\u0627 \u0648\u0642\u0639 \u062a\u0639\u0627\u0631\u0636. \u0623\u062f\u0648\u0627\u062a \u0645\u062b\u0644 Patroni \u062a\u062f\u064a\u0631 \u0647\u0630\u0627 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s7\">Proxy: \u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629<\/h2>\n\n\n<p>\u0645\u0639 \u0648\u062c\u0648\u062f Primary \u0648\u0639\u062f\u0651\u0629 Replicas\u060c \u0643\u064a\u0641 \u064a\u0639\u0631\u0641 \u062a\u0637\u0628\u064a\u0642\u0643 \u0623\u064a\u0646 \u064a\u0631\u0633\u0644 \u0643\u0644 \u0627\u0633\u062a\u0639\u0644\u0627\u0645\u061f \u0627\u0644\u062d\u0644\u0651 \u0627\u0644\u0623\u0646\u0638\u0641 \u0637\u0628\u0642\u0629 <strong>Proxy \/ Connection Router<\/strong> \u0628\u064a\u0646 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0648\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a: \u062a\u0648\u062c\u0651\u0647 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 (INSERT\/UPDATE) \u0625\u0644\u0649 Primary \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629 (SELECT) \u0625\u0644\u0649 Replicas \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627 \u2014 \u0648\u0623\u062b\u0646\u0627\u0621 Failover \u062a\u0639\u064a\u062f \u0627\u0644\u062a\u0648\u062c\u064a\u0647 \u0644\u0644\u0639\u0642\u062f\u0629 \u0627\u0644\u062c\u062f\u064a\u062f\u0629 \u0628\u0644\u0627 \u062a\u063a\u064a\u064a\u0631 \u0641\u064a \u0643\u0648\u062f \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>PgBouncer:<\/strong> \u062a\u062c\u0645\u064a\u0639 \u0627\u062a\u0635\u0627\u0644\u0627\u062a PostgreSQL (connection pooling) \u062e\u0641\u064a\u0641 \u0648\u0623\u0633\u0627\u0633\u064a.<\/li><li><strong>HAProxy:<\/strong> \u0645\u0648\u0627\u0632\u0650\u0646 \u0623\u062d\u0645\u0627\u0644 \u0639\u0627\u0645 \u064a\u0648\u0632\u0651\u0639 \u0639\u0644\u0649 \u0627\u0644\u0639\u0642\u062f \u0648\u064a\u0643\u062a\u0634\u0641 \u0627\u0644\u0635\u062d\u0651\u064a\u0629 \u0645\u0646\u0647\u0627.<\/li><li><strong>ProxySQL:<\/strong> \u0644\u0640MySQL\u060c \u064a\u0641\u0635\u0644 \u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0639\u0646 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u064a\u0648\u0632\u0651\u0639 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0651\u0627.<\/li><\/ul>\n\n\n<p>\u0647\u0630\u0627 \u0627\u0644\u0641\u0635\u0644 \u0628\u064a\u0646 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0648\u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0647\u0648 \u0646\u0641\u0633 \u0627\u0644\u0645\u0628\u062f\u0623 \u0627\u0644\u0630\u064a \u064a\u062c\u0639\u0644 <a href=\"https:\/\/maram.iq\/blogs\/?p=5310\">Redis \u0643\u0637\u0628\u0642\u0629 \u062d\u0627\u0644\u0629 \u0645\u0634\u062a\u0631\u0643\u0629<\/a> \u0641\u0639\u0651\u0627\u0644\u064b\u0627 \u2014 \u062a\u0648\u062c\u064a\u0647 \u0643\u0644 \u0639\u0645\u0644\u064a\u0629 \u0625\u0644\u0649 \u0627\u0644\u0645\u0643\u0627\u0646 \u0627\u0644\u0623\u0646\u0633\u0628 \u0644\u0647\u0627.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s8\">Backups \u0644\u064a\u0633\u062a Replica<\/h2>\n\n\n<p>\u062e\u0637\u0623 \u062e\u0637\u064a\u0631 \u0634\u0627\u0626\u0639: \u0627\u0644\u0627\u0639\u062a\u0642\u0627\u062f \u0623\u0646 \u0648\u062c\u0648\u062f Replica \u064a\u063a\u0646\u064a \u0639\u0646 \u0627\u0644\u0646\u0633\u062e \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a. <strong>\u0627\u0644\u0640Replica \u0644\u064a\u0633\u062a \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629<\/strong>! \u0644\u0623\u0646\u0647\u0627 \u062a\u0646\u0633\u062e <em>\u0643\u0644<\/em> \u0645\u0627 \u064a\u062d\u062f\u062b \u0639\u0644\u0649 Primary \u0641\u0648\u0631\u064b\u0627 \u2014 \u0628\u0645\u0627 \u0641\u064a\u0647 \u0627\u0644\u0623\u062e\u0637\u0627\u0621: \u0644\u0648 \u062d\u0630\u0641 \u0623\u062d\u062f\u0647\u0645 \u062c\u062f\u0648\u0644\u064b\u0627 \u0628\u0627\u0644\u062e\u0637\u0623 (<code>DROP TABLE<\/code>)\u060c \u064a\u064f\u0646\u0633\u062e \u0627\u0644\u062d\u0630\u0641 \u0625\u0644\u0649 \u0643\u0644 \u0627\u0644\u0646\u064f\u0651\u0633\u062e \u0641\u064a \u0627\u0644\u0644\u062d\u0638\u0629 \u0646\u0641\u0633\u0647\u0627.<\/p>\n\n\n<ul class=\"wp-block-list\"><li><strong>\u0646\u0633\u062e \u0627\u062d\u062a\u064a\u0627\u0637\u064a \u062f\u0648\u0631\u064a:<\/strong> \u0646\u0633\u062e \u0643\u0627\u0645\u0644\u0629 \u0645\u0646\u062a\u0638\u0645\u0629 \u062a\u064f\u062e\u0632\u064e\u0651\u0646 \u0628\u0639\u064a\u062f\u064b\u0627 \u0639\u0646 \u062e\u0648\u0627\u062f\u0645 \u0627\u0644\u0625\u0646\u062a\u0627\u062c.<\/li><li><strong>Point-in-Time Recovery (PITR):<\/strong> \u0628\u062d\u0641\u0638 \u0633\u062c\u0644\u0651 WAL\u060c \u062a\u0633\u062a\u0637\u064a\u0639 \u0627\u0644\u0627\u0633\u062a\u0639\u0627\u062f\u0629 \u0644\u0623\u064a \u0644\u062d\u0638\u0629 \u0632\u0645\u0646\u064a\u0629 \u2014 \u0645\u062b\u0644\u064b\u0627 \u00ab\u0642\u0628\u0644 \u062f\u0642\u064a\u0642\u0629 \u0645\u0646 \u0627\u0644\u062d\u0630\u0641 \u0627\u0644\u062e\u0627\u0637\u0626\u00bb.<\/li><li><strong>\u0627\u062e\u062a\u0628\u0631 \u0627\u0644\u0627\u0633\u062a\u0639\u0627\u062f\u0629:<\/strong> \u0646\u0633\u062e\u0629 \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u0629 \u0644\u0645 \u062a\u064f\u062e\u062a\u0628\u064e\u0631 \u0627\u0633\u062a\u0639\u0627\u062f\u062a\u0647\u0627 = \u0644\u0627 \u0646\u0633\u062e\u0629. \u062c\u0631\u0651\u0628 \u0627\u0644\u0627\u0633\u062a\u0639\u0627\u062f\u0629 \u062f\u0648\u0631\u064a\u064b\u0651\u0627.<\/li><li><strong>\u062e\u0632\u0651\u0646\u0647\u0627 \u0628\u0639\u064a\u062f\u064b\u0627:<\/strong> \u0639\u0644\u0649 \u062a\u062e\u0632\u064a\u0646 \u0645\u0646\u0641\u0635\u0644 \u0623\u0648 Object Storage\u060c \u0644\u0627 \u0639\u0644\u0649 \u0646\u0641\u0633 \u0627\u0644\u062e\u0627\u062f\u0645.<\/li><\/ul>\n\n\n<p style=\"background:#fef2f2;border-right:4px solid #dc2626;padding:14px 16px;border-radius:8px;\"><strong>&#9888; \u062a\u062d\u0630\u064a\u0631:<\/strong> \u0627\u0644\u0640Replica \u062a\u062d\u0645\u064a\u0643 \u0645\u0646 \u0639\u0637\u0644 \u0627\u0644\u0639\u062a\u0627\u062f\u061b \u0627\u0644\u0640Backup \u064a\u062d\u0645\u064a\u0643 \u0645\u0646 \u0627\u0644\u062e\u0637\u0623 \u0627\u0644\u0628\u0634\u0631\u064a \u0648\u0627\u0644\u0641\u0633\u0627\u062f \u0627\u0644\u0645\u0646\u0637\u0642\u064a. \u062a\u062d\u062a\u0627\u062c <strong>\u0627\u0644\u0627\u062b\u0646\u064a\u0646 \u0645\u0639\u064b\u0627<\/strong> \u2014 \u0644\u0627 \u0623\u062d\u062f\u0647\u0645\u0627 \u0628\u062f\u064a\u0644\u064b\u0627 \u0639\u0646 \u0627\u0644\u0622\u062e\u0631.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s9\">\u0625\u062b\u0628\u0627\u062a Database High Availability \u062d\u0642\u064a\u0642\u064a \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645<\/h2>\n\n\n<p>\u0644\u0623\u0646 \u0627\u0644\u0646\u0638\u0631\u064a\u0629 \u0644\u0627 \u062a\u0643\u0641\u064a\u060c \u0623\u0639\u062f\u062f\u0646\u0627 \u0628\u0646\u064a\u0629 <strong>Primary\/Replica<\/strong> \u0641\u0639\u0644\u064a\u0629 \u0639\u0644\u0649 \u0623\u062d\u062f \u062e\u0648\u0627\u062f\u0645 \u0645\u0631\u0627\u0645 (PostgreSQL 16.15\u060c Intel Xeon): \u062e\u0627\u062f\u0645 Primary \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u0641\u0630 5432\u060c \u0648Replica \u0639\u0628\u0631 Streaming Replication \u0639\u0644\u0649 5433\u060c \u062b\u0645\u0651 \u0627\u062e\u062a\u0628\u0631\u0646\u0627 \u0627\u0644\u0646\u0633\u062e \u0648\u0627\u0644\u062a\u0623\u062e\u0651\u0631 \u0648\u0627\u0644\u0640Failover \u0641\u0639\u0644\u064a\u064b\u0651\u0627:<\/p>\n\n\n<figure style=\"margin:1.5rem 0;text-align:center;\"><img decoding=\"async\" src=\"https:\/\/maram.iq\/blogs\/wp-content\/uploads\/2026\/08\/db-ha-proof.png\" alt=\"\u0625\u062b\u0628\u0627\u062a Database High Availability \u062d\u0642\u064a\u0642\u064a: Primary\/Replica \u0648Replication Lag \u0648Failover \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:12px;box-shadow:0 4px 16px rgba(15,23,42,.12);\"\/><figcaption style=\"color:#64748b;font-size:.9rem;margin-top:.5rem;\">\u0646\u062a\u0627\u0626\u062c \u0641\u0639\u0644\u064a\u0629: \u0646\u0633\u062e \u0644\u062d\u0638\u064a\u060c \u062a\u0623\u062e\u0651\u0631 ~75ms \u062a\u062d\u062a \u0627\u0644\u062d\u0645\u0644 \u0645\u0639 \u062a\u0637\u0627\u0628\u0642 \u0643\u0627\u0645\u0644\u060c \u0648Failover \u0646\u0627\u062c\u062d<\/figcaption><\/figure>\n\n\n<ul class=\"wp-block-list\"><li><strong>\u0627\u0644\u0646\u0633\u062e \u0627\u0644\u0644\u062d\u0638\u064a:<\/strong> \u0643\u062a\u0628\u0646\u0627 \u0627\u0644\u0642\u064a\u0645\u0629 <code>999.99<\/code> \u0639\u0644\u0649 Primary\u060c \u0641\u0642\u0631\u0623\u062a\u0647\u0627 Replica \u0641\u0648\u0631\u064b\u0627 \u2014 \u0648\u0627\u0644\u0639\u062f\u0651\u0627\u062f\u0627\u0646 \u0645\u062a\u0637\u0627\u0628\u0642\u0627\u0646 (1001 = 1001).<\/li><li><strong>\u0627\u0644\u062a\u0623\u062e\u0651\u0631 \u062a\u062d\u062a \u0627\u0644\u062d\u0645\u0644:<\/strong> \u062f\u0641\u0639\u0646\u0627 <strong>50,000 \u0635\u0641\u0651 \u062f\u0641\u0639\u0629\u064b \u0648\u0627\u062d\u062f\u0629<\/strong>\u060c \u0641\u0643\u0627\u0646 \u0623\u0642\u0635\u0649 Replication Lag \u0646\u062d\u0648 <strong>75 \u0645\u0644\u0644\u064a \u062b\u0627\u0646\u064a\u0629<\/strong> \u0641\u0642\u0637\u060c \u062b\u0645\u0651 \u0644\u062d\u0642\u062a \u0627\u0644\u0646\u0633\u062e\u0629 \u062a\u0645\u0627\u0645\u064b\u0627 (51,001 = 51,001).<\/li><li><strong>Failover:<\/strong> \u0631\u0642\u0651\u064a\u0646\u0627 \u0627\u0644\u0640Replica \u0625\u0644\u0649 Primary (\u062a\u062d\u0648\u0651\u0644 <code>pg_is_in_recovery<\/code> \u0645\u0646 <code>t<\/code> \u0625\u0644\u0649 <code>f<\/code>)\u060c \u0641\u0642\u0628\u0644\u062a \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0641\u0648\u0631\u064b\u0627 \u0648\u0635\u0627\u0631 \u0627\u0644\u0639\u062f\u0651\u0627\u062f 51,002 \u2014 \u062f\u0648\u0646 \u0641\u0642\u062f\u0627\u0646 \u0635\u0641\u064d\u0651 \u0648\u0627\u062d\u062f.<\/li><\/ul>\n\n\n<p style=\"background:#f8fafc;border:1px solid #e2e8f0;border-right:4px solid #64748b;padding:14px 16px;border-radius:8px;\"><strong>&#129309; \u0645\u0646 \u0648\u0627\u0642\u0639 \u0645\u0631\u0627\u0645:<\/strong> \u0647\u0630\u0647 \u0623\u0631\u0642\u0627\u0645 \u0645\u0642\u064a\u0633\u0629 \u0641\u0639\u0644\u064a\u064b\u0651\u0627 \u0639\u0644\u0649 \u0639\u062a\u0627\u062f \u0645\u0631\u0627\u0645 (PostgreSQL 16.15\u060c Intel Xeon) \u2014 \u0644\u0627 \u0623\u0631\u0642\u0627\u0645 \u0645\u0641\u062a\u0631\u0636\u0629. \u0627\u0644\u0623\u0647\u0645\u0651 \u0645\u0646 \u0627\u0644\u0623\u0631\u0642\u0627\u0645 \u0647\u0648 \u0627\u0644\u0645\u0628\u062f\u0623 \u0627\u0644\u0630\u064a \u0623\u062b\u0628\u062a\u0646\u0627\u0647: \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0643\u062a\u0648\u0628\u0629 \u0639\u0644\u0649 Primary \u0648\u0635\u0644\u062a \u0627\u0644\u0646\u0633\u062e\u0629 \u062e\u0644\u0627\u0644 \u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u062b\u0627\u0646\u064a\u0629\u060c \u0648\u0627\u0644\u0646\u0633\u062e\u0629 \u062a\u062d\u0648\u0651\u0644\u062a \u0625\u0644\u0649 Primary \u0639\u0627\u0645\u0644\u0629 \u0641\u0648\u0631\u064b\u0627 \u0639\u0646\u062f \u0627\u0644\u062d\u0627\u062c\u0629. \u0647\u0630\u0627 \u0628\u0627\u0644\u0636\u0628\u0637 \u0645\u0627 \u064a\u0645\u0646\u0639 \u0627\u0644\u062a\u0648\u0642\u0651\u0641: \u0623\u064a \u0639\u0642\u062f\u0629 \u062a\u0633\u0642\u0637\u060c \u0648\u0623\u062e\u0631\u0649 \u062c\u0627\u0647\u0632\u0629 \u062a\u062d\u0644\u0651 \u0645\u062d\u0644\u0651\u0647\u0627 \u0628\u0644\u0627 \u0641\u0642\u062f\u0627\u0646 \u0628\u064a\u0627\u0646\u0627\u062a.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s10\">\u062e\u0627\u0631\u0637\u0629 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u0639\u0645\u0644\u064a\u0629<\/h2>\n\n\n<p>\u0644\u062a\u0646\u0642\u0644 \u0642\u0627\u0639\u062f\u062a\u0643 \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f \u0625\u0644\u0649 <strong>High Availability<\/strong> \u0628\u0623\u0645\u0627\u0646\u060c \u0627\u062a\u0651\u0628\u0639 \u0647\u0630\u0627 \u0627\u0644\u062a\u0631\u062a\u064a\u0628:<\/p>\n\n\n<ol class=\"wp-block-list\"><li><strong>\u062b\u0628\u0651\u062a \u0627\u0644\u0646\u0633\u062e \u0627\u0644\u0627\u062d\u062a\u064a\u0627\u0637\u064a \u0623\u0648\u0644\u064b\u0627:<\/strong> \u0646\u0633\u062e \u062f\u0648\u0631\u064a\u0629 + WAL\/PITR \u0642\u0628\u0644 \u0623\u064a \u0634\u064a\u0621 \u2014 \u0647\u0630\u0627 \u062e\u0637\u0651 \u062f\u0641\u0627\u0639\u0643 \u0627\u0644\u0623\u062e\u064a\u0631.<\/li><li><strong>\u0623\u0636\u0650\u0641 Replica \u0648\u0627\u062d\u062f\u0629:<\/strong> \u0639\u0628\u0631 Streaming Replication\u060c \u0648\u0648\u062c\u0651\u0647 \u0625\u0644\u064a\u0647\u0627 \u0627\u0644\u0642\u0631\u0627\u0621\u0627\u062a \u0627\u0644\u062b\u0642\u064a\u0644\u0629.<\/li><li><strong>\u0631\u0627\u0642\u0628 Replication Lag:<\/strong> \u062a\u0623\u0643\u0651\u062f \u0623\u0646\u0647 \u0645\u0646\u062e\u0641\u0636 \u0648\u0645\u0633\u062a\u0642\u0631\u0651 \u062a\u062d\u062a \u062d\u0645\u0644\u0643 \u0627\u0644\u062d\u0642\u064a\u0642\u064a.<\/li><li><strong>\u0623\u062f\u062e\u0650\u0644 Proxy:<\/strong> \u0644\u0641\u0635\u0644 \u0627\u0644\u0643\u062a\u0627\u0628\u0629 \u0639\u0646 \u0627\u0644\u0642\u0631\u0627\u0621\u0629 \u0628\u0644\u0627 \u062a\u0639\u062f\u064a\u0644 \u0643\u0648\u062f \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/li><li><strong>\u062c\u0647\u0651\u0632 Failover:<\/strong> \u0627\u0628\u062f\u0623 \u064a\u062f\u0648\u064a\u064b\u0651\u0627\u060c \u062b\u0645\u0651 \u0623\u062a\u0645\u062a\u0647 \u0628\u0623\u062f\u0627\u0629 (Patroni\/repmgr) \u062d\u064a\u0646 \u062a\u0646\u0636\u062c.<\/li><li><strong>\u0627\u062e\u062a\u0628\u0631 \u0627\u0644\u0639\u0637\u0644:<\/strong> \u0623\u0633\u0642\u0650\u0637 Primary \u0639\u0645\u062f\u064b\u0627 \u0641\u064a \u0628\u064a\u0626\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0648\u062a\u0623\u0643\u0651\u062f \u0623\u0646 \u0627\u0644\u062a\u062d\u0648\u0651\u0644 \u064a\u0639\u0645\u0644 \u2014 \u0642\u0628\u0644 \u0623\u0646 \u064a\u062d\u062f\u062b \u0641\u064a \u0627\u0644\u0625\u0646\u062a\u0627\u062c.<\/li><\/ol>\n\n\n<p>\u0644\u0628\u0646\u0627\u0621 \u0627\u0644\u0637\u0628\u0642\u0627\u062a \u0627\u0644\u0645\u062d\u064a\u0637\u0629 (\u062e\u0648\u0627\u062f\u0645 \u062a\u0637\u0628\u064a\u0642 \u0639\u062f\u064a\u0645\u0629 \u0627\u0644\u062d\u0627\u0644\u0629\u060c \u0648\u0645\u0648\u0627\u0632\u0646\u0629 \u0623\u062d\u0645\u0627\u0644)\u060c \u0631\u0627\u062c\u0639 <a href=\"https:\/\/maram.iq\/blogs\/?p=5221\">\u0645\u062a\u0649 \u062a\u0628\u062f\u0623 Horizontal Scaling<\/a>. \u0648\u0644\u0644\u0645\u0631\u0627\u062c\u0639 \u0627\u0644\u0631\u0633\u0645\u064a\u0629: <a href=\"https:\/\/www.postgresql.org\/docs\/current\/high-availability.html\" target=\"_blank\" rel=\"noopener\">\u062a\u0648\u0627\u0641\u0631 PostgreSQL \u0627\u0644\u0639\u0627\u0644\u064a<\/a> \u0648<a href=\"https:\/\/patroni.readthedocs.io\/en\/latest\/\" target=\"_blank\" rel=\"noopener\">Patroni<\/a> \u0648<a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/replication.html\" target=\"_blank\" rel=\"noopener\">\u0646\u0633\u062e MySQL<\/a> \u0648<a href=\"https:\/\/www.haproxy.org\/\" target=\"_blank\" rel=\"noopener\">HAProxy<\/a>.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"s11\">\u0627\u0644\u062e\u0644\u0627\u0635\u0629<\/h2>\n\n\n<p>\u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0625\u0644\u0649 <strong>Database High Availability<\/strong> \u0644\u064a\u0633 \u062a\u0631\u0641\u064b\u0627 \u0644\u0645\u0634\u0627\u0631\u064a\u0639 <strong>SaaS<\/strong> \u0648<strong>ERP<\/strong> \u0648\u0627\u0644\u0645\u062a\u0627\u062c\u0631 \u0627\u0644\u0643\u0628\u064a\u0631\u0629\u060c \u0628\u0644 \u0636\u0631\u0648\u0631\u0629 \u062a\u062d\u0645\u064a \u0625\u064a\u0631\u0627\u062f\u0643 \u0648\u0633\u0645\u0639\u062a\u0643. \u0627\u0644\u0645\u0628\u062f\u0623 \u0648\u0627\u062d\u062f: \u0644\u0627 \u0646\u0642\u0637\u0629 \u0641\u0634\u0644 \u0648\u0627\u062d\u062f\u0629. \u0627\u0628\u0646\u0650\u0647 \u062a\u062f\u0631\u064a\u062c\u064a\u064b\u0651\u0627 \u2014 \u0646\u0633\u062e \u0627\u062d\u062a\u064a\u0627\u0637\u064a\u060c \u0641\u0640Replica\u060c \u0641\u0640Proxy\u060c \u0641\u0640Failover \u2014 \u0648\u0631\u0627\u0642\u0628 Replication Lag \u062f\u0627\u0626\u0645\u064b\u0627. \u0648\u0643\u0645\u0627 \u0623\u062b\u0628\u062a\u0646\u0627 \u0628\u0623\u0631\u0642\u0627\u0645 \u062d\u0642\u064a\u0642\u064a\u0629 \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645\u060c \u0627\u0644\u0646\u0633\u062e \u064a\u062a\u0645\u0651 \u062e\u0644\u0627\u0644 \u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648\u0627\u0644\u0640Failover \u064a\u0631\u0642\u0651\u064a \u0627\u0644\u0646\u0633\u062e\u0629 \u0641\u0648\u0631\u064b\u0627 \u0628\u0644\u0627 \u0641\u0642\u062f\u0627\u0646 \u0628\u064a\u0627\u0646\u0627\u062a. \u0627\u0644\u0646\u062a\u064a\u062c\u0629: \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u062a\u0628\u0642\u0649 \u0635\u0627\u0645\u062f\u0629 \u0645\u0647\u0645\u0627 \u0633\u0642\u0637\u062a \u0639\u0642\u062f\u0629.<\/p>\n\n\n<div style=\"background:#0f172a;border-radius:12px;padding:24px 20px;text-align:center;margin:1.5rem 0;\"><p style=\"color:#fff;font-size:17px;margin:0 0 14px;\">\u062a\u0646\u0642\u0644 \u0642\u0627\u0639\u062f\u0629 \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0634\u0631\u0648\u0639\u0643 \u0625\u0644\u0649 \u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631\u061f \u062e\u0648\u0627\u062f\u0645 \u0645\u0631\u0627\u0645 \u062a\u0648\u0641\u0651\u0631 \u0639\u064f\u0642\u062f\u064b\u0627 \u0628\u0634\u0628\u0643\u0629 \u062f\u0627\u062e\u0644\u064a\u0629 \u0633\u0631\u064a\u0639\u0629 \u0648\u0642\u0631\u0635 Enterprise NVMe \u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u0643\u0645\u0648\u0646 \u2014 \u0627\u0644\u0623\u0633\u0627\u0633 \u0627\u0644\u0630\u064a \u064a\u0628\u0642\u064a Replication Lag \u0636\u0626\u064a\u0644\u064b\u0627 \u0648Failover \u0633\u0644\u0633\u064b\u0627 \u2014 \u0645\u0639 \u062f\u0639\u0645 \u0639\u0631\u0628\u064a \u064a\u0641\u0647\u0645 \u0623\u0646\u0638\u0645\u0629 SaaS \u0648ERP.<\/p><a href=\"https:\/\/maram.iq\/\" style=\"display:inline-block;background:#16a34a;color:#fff;font-weight:700;padding:12px 28px;border-radius:8px;text-decoration:none;\">\u0627\u0633\u062a\u0641\u0633\u0631 \u0639\u0646 \u062d\u0644\u0648\u0644 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 \u0627\u0644\u0639\u0627\u0644\u064a \u0645\u0646 \u0645\u0631\u0627\u0645<\/a><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>\u062f\u0644\u064a\u0644 Database High Availability: \u0646\u0642\u0644 \u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0646 \u062e\u0627\u062f\u0645 \u0648\u0627\u062d\u062f \u0625\u0644\u0649 \u0628\u0646\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0648\u0627\u0641\u0631 (Primary\/Replica\u060c Failover\u060c Backups\u060c Proxy\u060c Replication Lag) \u0645\u0639 \u0625\u062b\u0628\u0627\u062a \u062d\u0642\u064a\u0642\u064a \u0639\u0644\u0649 \u062e\u0627\u062f\u0645 \u0645\u0631\u0627\u0645.<\/p>\n","protected":false},"author":6,"featured_media":5315,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[949],"tags":[176,154,152,158,146,153,140,157],"class_list":["post-5313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-enterprise-solutions","tag-mysql","tag-nvme","tag-152","tag-158","tag-146","tag-153","tag-140","tag-157"],"_links":{"self":[{"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/posts\/5313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/comments?post=5313"}],"version-history":[{"count":1,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/posts\/5313\/revisions"}],"predecessor-version":[{"id":5314,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/posts\/5313\/revisions\/5314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/media\/5315"}],"wp:attachment":[{"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/media?parent=5313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/categories?post=5313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maram.iq\/blogs\/wp-json\/wp\/v2\/tags?post=5313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}