{"id":32598,"date":"2026-08-13T10:00:00","date_gmt":"2026-08-13T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=32598"},"modified":"2026-08-16T19:33:02","modified_gmt":"2026-08-16T11:33:02","slug":"mariadb-backup-lock-wait","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/mariadb-backup-lock-wait\/","title":{"rendered":"MariaDB \u5907\u4efd\u9501\u7b49\u5f85\u6392\u67e5\uff1a\u5982\u4f55\u907f\u514d\u5907\u4efd\u7a97\u53e3\u5f71\u54cd\u7ebf\u4e0a\u5199\u5165"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/mariadb-backup-lock-wait-cover.webp\" alt=\"MariaDB \u5907\u4efd\u9501\u7b49\u5f85\u5c01\u9762\" loading=\"lazy\" \/><\/p>\n<p>\u8fd9\u7bc7\u6307\u5357\u5e2e\u52a9\u4f60\u6392\u67e5 MariaDB\uff08\u4e00\u79cd\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff09\u5907\u4efd\u671f\u95f4\u7684\u9501\u7b49\u5f85\u95ee\u9898\uff0c\u8bf4\u660e\u5982\u4f55\u9009\u62e9\u5408\u9002\u7684\u5907\u4efd\u65b9\u5f0f\u907f\u514d\u5f71\u54cd\u7ebf\u4e0a\u5199\u5165\u3002\u5907\u4efd\u672c\u8eab\u4e0d\u662f\u9ad8\u98ce\u9669\u64cd\u4f5c\uff0c\u4f46\u9009\u9519\u65b9\u5f0f\u6216\u9009\u9519\u65f6\u673a\u53ef\u80fd\u8ba9\u6574\u5e93\u5199\u5165\u88ab\u9501\u4f4f\u6570\u5206\u949f\uff0c\u5f71\u54cd\u4e1a\u52a1\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7684\u6570\u636e\u5e93\u9700\u8981 24 \u5c0f\u65f6\u53ef\u5199\uff0c\u4f20\u7edf mysqldump \u5907\u4efd\u65b9\u5f0f\u5c31\u4e0d\u9002\u7528\u3002Hostease \u4e2d\u6587\u535a\u5ba2\u7684 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/wordpress-database-cleanup-query-optimization\/\">WordPress \u6570\u636e\u5e93\u4f18\u5316<\/a>\u5173\u6ce8\u67e5\u8be2\u6027\u80fd\uff0c<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/mariadb-replication-lag\/\">MariaDB \u4e3b\u4ece\u590d\u5236<\/a>\u5173\u6ce8\u4e3b\u4ece\u67b6\u6784\uff0c\u672c\u6587\u805a\u7126\u5907\u4efd\u672c\u8eab\uff1a\u600e\u4e48\u9009\u578b\u3001\u600e\u4e48\u9a8c\u8bc1\u3001\u600e\u4e48\u907f\u514d\u5907\u4efd\u7a97\u53e3\u5f71\u54cd\u4e1a\u52a1\u3002<\/p>\n<h2>\u4e00\u3001\u4e3a\u4ec0\u4e48\u5907\u4efd\u4f1a\u9501\u8868<\/h2>\n<p>\u4e0d\u540c\u5907\u4efd\u65b9\u5f0f\u7684\u9501\u673a\u5236\u5dee\u5f02\u5f88\u5927\u3002\u903b\u8f91\u5907\u4efd\u5de5\u5177 mysqldump \u9ed8\u8ba4\u4f1a\u5bf9\u6bcf\u4e2a\u8868\u6267\u884c FLUSH TABLES WITH READ LOCK\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u4f1a\u83b7\u53d6\u5168\u5c40\u8bfb\u9501\uff0c\u671f\u95f4\u6240\u6709\u5199\u5165\u90fd\u4f1a\u88ab\u963b\u585e\u3002\u5373\u4f7f\u540e\u7eed\u7528 &#8211;single-transaction \u542f\u7528\u4e00\u81f4\u6027\u5feb\u7167\uff0c\u5907\u4efd\u671f\u95f4\u957f\u4e8b\u52a1\u4ecd\u7136\u4f1a\u6301\u6709 undo log\uff08\u56de\u6eda\u65e5\u5fd7\uff09\uff0c\u589e\u52a0\u5b58\u50a8\u5f00\u9500\u3002<\/p>\n<p>\u7269\u7406\u5907\u4efd\u5de5\u5177\u5982 mariabackup\u3001XtraBackup \u901a\u8fc7\u62f7\u8d1d\u6570\u636e\u6587\u4ef6\u5b9e\u73b0\u5907\u4efd\uff0c\u5bf9\u4e1a\u52a1\u5199\u5165\u51e0\u4e4e\u65e0\u5f71\u54cd\u3002\u4f46\u7269\u7406\u5907\u4efd\u5bf9\u5b58\u50a8\u548c IO \u6709\u8981\u6c42\uff0c\u4e14\u6062\u590d\u6d41\u7a0b\u6bd4\u903b\u8f91\u5907\u4efd\u590d\u6742\u3002MySQL 8.0+ \u7684 INSTANT ADD COLUMN \u4e5f\u8ba9\u7269\u7406\u5907\u4efd\u7684\u6062\u590d\u903b\u8f91\u66f4\u590d\u6742\uff0c\u5907\u4efd\u5de5\u5177\u9700\u8981\u6301\u7eed\u66f4\u65b0\u3002<\/p>\n<h2>\u4e8c\u3001\u903b\u8f91\u5907\u4efd\u7684\u9501\u98ce\u9669<\/h2>\n<p>\u5148\u7528 mysqldump \u9ed8\u8ba4\u65b9\u5f0f\u6d4b\u8bd5\u9501\u7b49\u5f85\u65f6\u957f\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-linenumbers=\"false\">mysqldump --all-databases --single-transaction > \/tmp\/full-backup.sql<\/pre>\n<p>&#8211;single-transaction \u5728\u5907\u4efd\u5f00\u59cb\u65f6\u83b7\u53d6\u4e00\u81f4\u6027\u5feb\u7167\uff0c\u907f\u514d\u957f\u65f6\u95f4\u9501\u8868\u3002\u4f46\u5bf9\u4e8e\u975e\u4e8b\u52a1\u8868\uff08MyISAM \u7b49\uff09\u6216\u6b63\u5728\u6267\u884c\u5927\u91cf\u5199\u5165\u64cd\u4f5c\u7684\u8868\uff0c\u4ecd\u53ef\u80fd\u9047\u5230\u9501\u7b49\u5f85\u3002\u5728\u5907\u4efd\u671f\u95f4\u7528 SHOW ENGINE INNODB STATUS \u67e5\u770b\u9501\u7b49\u5f85\u60c5\u51b5\uff0c\u5173\u6ce8 LATEST DETECTED DEADLOCK \u548c TRANSACTIONS \u8282\u3002<\/p>\n<p>\u5982\u679c\u4e1a\u52a1\u5fc5\u987b\u4fdd\u8bc1 24 \u5c0f\u65f6\u53ef\u5199\uff0c\u4e14 mysqldump \u4e0d\u53ef\u907f\u514d\u4ea7\u751f\u9501\u7b49\u5f85\uff0c\u5efa\u8bae\u6539\u9020\u4e3a\u4ece\u5e93\u5907\u4efd\uff1a\u5728\u4ece\u5e93\u4e0a\u8dd1\u5907\u4efd\uff0c\u4e3b\u5e93\u4e0d\u627f\u62c5\u5907\u4efd\u538b\u529b\u3002\u4ece\u5e93\u5907\u4efd\u8fd8\u53ef\u4ee5\u548c <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/mariadb-replication-lag\/\">\u4e3b\u4ece\u590d\u5236<\/a>\u7ed3\u5408\uff0c\u5907\u4efd\u671f\u95f4\u590d\u5236\u5ef6\u8fdf\u4f1a\u77ed\u6682\u5347\u9ad8\u4f46\u4e0d\u5f71\u54cd\u4e3b\u5e93\u53ef\u7528\u6027\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/mariadb-backup-lock-wait-flow.webp\" alt=\"\u5907\u4efd\u65b9\u5f0f\u4e0e\u9501\u673a\u5236\u5bf9\u6bd4\" loading=\"lazy\" \/><\/p>\n<h2>\u4e09\u3001\u7269\u7406\u5907\u4efd\u7684\u4f18\u52bf\u4e0e\u98ce\u9669<\/h2>\n<p>\u7269\u7406\u5907\u4efd\u5de5\u5177\uff08\u5982 mariabackup\uff09\u5728\u5907\u4efd\u671f\u95f4\u5bf9\u4e1a\u52a1\u5199\u5165\u51e0\u4e4e\u65e0\u5f71\u54cd\uff0c\u662f\u9ad8\u5199\u5165\u573a\u666f\u7684\u9996\u9009\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-linenumbers=\"false\">mariabackup --backup --target-dir=\/var\/backups\/mariadb\/$(date +%Y%m%d)\nmariabackup --prepare --target-dir=\/var\/backups\/mariadb\/$(date +%Y%m%d)<\/pre>\n<p>\u5907\u4efd\u9636\u6bb5\u5bf9\u4e1a\u52a1\u51e0\u4e4e\u65e0\u611f\u77e5\uff0c\u4f46 prepare \u9636\u6bb5\u4f1a\u521b\u5efa\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u5185\u90e8\u4e8b\u52a1\uff0c\u671f\u95f4\u53ef\u80fd\u4ea7\u751f\u5927\u91cf undo log\u3002\u5982\u679c\u6570\u636e\u91cf\u5f88\u5927\uff08\u5982\u6570\u767e GB\uff09\uff0cprepare \u53ef\u80fd\u6301\u7eed\u6570\u5c0f\u65f6\uff0c\u671f\u95f4\u8981\u76d1\u63a7\u78c1\u76d8\u7a7a\u95f4\u3002\u5982\u679c\u4f60\u505a\u8fc7 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/wordpress-database-cleanup-query-optimization\/\">WordPress \u6570\u636e\u5e93\u6e05\u7406<\/a>\uff0c\u63d0\u524d\u6e05\u7406\u5197\u4f59\u6570\u636e\u53ef\u4ee5\u7f29\u77ed prepare \u65f6\u95f4\u3002<\/p>\n<p>\u6062\u590d\u7269\u7406\u5907\u4efd\u4e0d\u662f\u7b80\u5355\u7684\u62f7\u8d1d\u6587\u4ef6\uff0c\u9700\u8981\u901a\u8fc7 prepare \u6d41\u7a0b\u5e94\u7528 redo log\uff08\u91cd\u505a\u65e5\u5fd7\uff09\u548c undo log\uff0c\u4f7f\u5907\u4efd\u6587\u4ef6\u8fbe\u5230\u4e00\u81f4\u6027\u72b6\u6001\u3002\u9519\u8bef\u7684 prepare \u64cd\u4f5c\u53ef\u80fd\u5bfc\u81f4\u6062\u590d\u540e\u6570\u636e\u4e0d\u4e00\u81f4\uff0c\u5efa\u8bae\u5728\u6d4b\u8bd5\u73af\u5883\u5148\u6f14\u7ec3\u3002<\/p>\n<h2>\u56db\u3001\u5e76\u53d1\u5907\u4efd\u7b56\u7565<\/h2>\n<p>\u5bf9\u4e8e\u8d85\u5927\u89c4\u6a21\u6570\u636e\u5e93\uff08\u5355\u5e93\u8d85\u8fc7 1TB\uff09\uff0c\u5355\u6b21\u5168\u91cf\u5907\u4efd\u8017\u65f6\u957f\u3001IO \u538b\u529b\u5927\u3002\u53ef\u4ee5\u505a\u5e76\u53d1\u5907\u4efd\u6216\u589e\u91cf\u5907\u4efd\u3002mariabackup \u652f\u6301\u5e76\u884c\u5907\u4efd\u548c\u589e\u91cf\u5907\u4efd\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-linenumbers=\"false\">mariabackup --backup --parallel=4 --target-dir=\/var\/backups\/mariadb\/full\nmariabackup --backup --incremental-basedir=\/var\/backups\/mariadb\/full --target-dir=\/var\/backups\/mariadb\/inc1<\/pre>\n<p>&#8211;parallel \u53c2\u6570\u63a7\u5236\u5907\u4efd\u7ebf\u7a0b\u6570\uff0c\u6839\u636e\u78c1\u76d8 IO \u80fd\u529b\u8c03\u6574\u3002\u589e\u91cf\u5907\u4efd\u53ea\u5907\u4efd\u4e0a\u6b21\u5168\u91cf\u540e\u7684\u53d8\u5316\uff0c\u6062\u590d\u65f6\u9700\u8981\u5148\u6062\u590d\u5168\u91cf\u518d\u9010\u4e2a\u5e94\u7528\u589e\u91cf\u3002\u5907\u4efd\u9891\u7387\u6839\u636e\u6570\u636e\u53d8\u5316\u91cf\u548c\u6062\u590d RTO\uff08Recovery Time Objective\uff0c\u6062\u590d\u65f6\u95f4\u76ee\u6807\uff09\u76ee\u6807\u51b3\u5b9a\uff1aRTO \u77ed\u7684\u573a\u666f\u6bcf 6 \u5c0f\u65f6\u4e00\u6b21\u589e\u91cf\uff0cRTO \u957f\u7684\u53ef\u4ee5\u6bcf\u5929\u4e00\u6b21\u589e\u91cf + \u6bcf\u5468\u4e00\u6b21\u5168\u91cf\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/08\/mariadb-backup-lock-wait-comparison.webp\" alt=\"\u5907\u4efd\u7b56\u7565\u4e0e\u6062\u590d\u8def\u5f84\u5bf9\u6bd4\" loading=\"lazy\" \/><\/p>\n<h2>\u4e94\u3001\u5907\u4efd\u9a8c\u8bc1<\/h2>\n<p>\u5907\u4efd\u672c\u8eab\u4e0d\u53ef\u4fe1\uff0c\u5fc5\u987b\u9a8c\u8bc1\u6062\u590d\u662f\u5426\u5b8c\u6574\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-linenumbers=\"false\">mariabackup --prepare --target-dir=\/var\/backups\/mariadb\/$(date +%Y%m%d)\nmysql -e \"SELECT COUNT(*) FROM mydb.mytable;\" > \/tmp\/row_count_after.txt\nmysql -e \"SELECT COUNT(*) FROM mydb.mytable WHERE created_at > NOW() - INTERVAL 1 HOUR;\"\ndiff \/tmp\/row_count_before.txt \/tmp\/row_count_after.txt<\/pre>\n<p>\u5bf9\u6bd4\u5907\u4efd\u524d\u540e\u7684\u5173\u952e\u8868\u884c\u6570\u548c\u6821\u9a8c\u503c\uff0c\u786e\u8ba4\u6570\u636e\u5b8c\u6574\u3002\u8fd8\u53ef\u4ee5\u5bf9\u5173\u952e\u8868\u8fd0\u884c CHECKSUM TABLE \u9a8c\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002\u5907\u4efd\u9a8c\u8bc1\u5e94\u8be5\u5b9a\u671f\u505a\uff0c\u6bcf\u6708\u81f3\u5c11\u4e00\u6b21\u5b8c\u6574\u6062\u590d\u6f14\u7ec3\u3002\u5907\u4efd\u5982\u679c\u4e0d\u80fd\u6062\u590d\uff0c\u7b49\u4e8e\u6ca1\u6709\u5907\u4efd\u3002<\/p>\n<h2>\u516d\u3001\u5907\u4efd\u7a97\u53e3\u4e0e\u4e1a\u52a1\u5e73\u8861<\/h2>\n<p>\u5bf9\u4e8e\u5199\u5165\u5bc6\u96c6\u578b\u4e1a\u52a1\uff0c\u5907\u4efd\u7a97\u53e3\u9009\u62e9\u5f88\u91cd\u8981\u3002\u5c3d\u91cf\u9009\u62e9\u4e1a\u52a1\u4f4e\u5cf0\u671f\u8dd1\u5168\u91cf\u5907\u4efd\uff0c\u9ad8\u5cf0\u671f\u53ea\u505a\u589e\u91cf\u6216\u8df3\u8fc7\u5907\u4efd\u3002\u5982\u679c\u4e1a\u52a1 24 \u5c0f\u65f6\u5747\u5300\u5199\u5165\uff0c\u65e0\u6cd5\u627e\u5230\u4f4e\u5cf0\u671f\uff0c\u5f3a\u70c8\u5efa\u8bae\u7528\u7269\u7406\u5907\u4efd\u5de5\u5177\u6216\u5728\u4ece\u5e93\u4e0a\u8dd1\u5907\u4efd\uff0c\u907f\u514d\u5f71\u54cd\u4e3b\u5e93\u3002<\/p>\n<p>\u5907\u4efd\u671f\u95f4\u76d1\u63a7\u4e09\u4e2a\u6307\u6807\uff1a\u5907\u4efd\u6267\u884c\u65f6\u957f\u3001\u5907\u4efd\u671f\u95f4\u4e3b\u5e93\u5199\u5165\u5ef6\u8fdf\u3001\u5907\u4efd\u5b8c\u6210\u540e\u78c1\u76d8\u7a7a\u95f4\u5360\u7528\u3002\u5982\u679c\u5907\u4efd\u65f6\u957f\u8d85\u8fc7\u9884\u671f\uff0c\u9700\u8981\u8bc4\u4f30\u6570\u636e\u589e\u957f\u662f\u5426\u9700\u8981\u8c03\u6574\u5907\u4efd\u7b56\u7565\u3002\u5982\u679c\u4f60\u505a\u8fc7 <a href=\"https:\/\/cn.hostease.com\/blog\/guides\/vps-incident-response-guide\/\">VPS \u5165\u4fb5\u5e94\u6025\u5904\u7406<\/a>\uff0c\u5907\u4efd\u662f\u4e8b\u6545\u6062\u590d\u7684\u6700\u540e\u9632\u7ebf\uff0c\u4e0d\u80fd\u56e0\u4e3a\u5907\u4efd\u5f71\u54cd\u4e1a\u52a1\u5c31\u8df3\u8fc7\u5907\u4efd\u672c\u8eab\u3002<\/p>\n<p>\u5907\u4efd\u7b56\u7565\u4e4b\u5916\u8fd8\u8981\u8003\u8651\u5907\u4efd\u5b58\u50a8\u7684\u5b89\u5168\u6027\u3002\u5907\u4efd\u6587\u4ef6\u5305\u542b\u5b8c\u6574\u6570\u636e\u5e93\u5185\u5bb9\uff0c\u8bbf\u95ee\u6743\u9650\u8981\u548c\u6570\u636e\u5e93\u672c\u8eab\u4e00\u81f4\uff0c\u4e0d\u80fd\u56e0\u4e3a\u662f\u5907\u4efd\u6587\u4ef6\u5c31\u964d\u4f4e\u6743\u9650\u63a7\u5236\u3002\u5907\u4efd\u6587\u4ef6\u5e94\u52a0\u5bc6\u5b58\u50a8\u6216\u81f3\u5c11\u9650\u5236\u78c1\u76d8\u8bbf\u95ee\uff0c\u907f\u514d\u5907\u4efd\u6210\u4e3a\u6570\u636e\u6cc4\u9732\u901a\u9053\u3002\u5f02\u5730\u5907\u4efd\uff08\u5982\u5907\u4efd\u5230\u5bf9\u8c61\u5b58\u50a8\u6216\u53e6\u4e00\u4e2a\u673a\u623f\uff09\u53ef\u4ee5\u9632\u8303\u5355\u70b9\u6545\u969c\uff0c\u4f46\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u7f51\u7edc\u5b89\u5168\u4e5f\u8981\u4fdd\u8bc1\u3002\u5efa\u8bae\u7528\u4e13\u7528\u5907\u4efd\u8d26\u53f7\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u8d26\u53f7\u6743\u9650\u4ec5\u6388\u4e88\u5907\u4efd\u6240\u9700\u7684\u6700\u5c0f\u6743\u9650\uff08SELECT\u3001LOCK 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\u4e2a\u6708\u3001\u5e74\u5907\u4efd\u6c38\u4e45\u4fdd\u7559\u3002\u540c\u65f6\u8bb0\u5f55\u5907\u4efd\u6587\u4ef6\u6e05\u5355\u548c\u4fdd\u7559\u5230\u671f\u65e5\u671f\uff0c\u5b9a\u671f\u6e05\u7406\u8fc7\u671f\u5907\u4efd\u3002\u5efa\u8bae\u7528\u811a\u672c\u81ea\u52a8\u5316\u6e05\u7406\u6d41\u7a0b\uff0c\u907f\u514d\u4eba\u5de5\u6f0f\u6e05\u5bfc\u81f4\u78c1\u76d8\u7a7a\u95f4\u4e0d\u8db3\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>MariaDB 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