{"id":118992,"date":"2026-10-28T16:32:26","date_gmt":"2026-10-28T08:32:26","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/118992.html"},"modified":"2026-10-28T16:32:26","modified_gmt":"2026-10-28T08:32:26","slug":"mysql%e8%bf%9b%e7%a8%8b%e7%aa%81%e7%84%b6%e7%bb%93%e6%9d%9f%ef%bc%8c%e5%b7%b2%e6%8f%90%e4%ba%a4%e5%92%8c%e6%9c%aa%e6%8f%90%e4%ba%a4%e7%9a%84%e6%95%b0%e6%8d%ae%e4%bc%9a%e6%80%8e%e6%a0%b7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/118992.html","title":{"rendered":"MySQL\u8fdb\u7a0b\u7a81\u7136\u7ed3\u675f\uff0c\u5df2\u63d0\u4ea4\u548c\u672a\u63d0\u4ea4\u7684\u6570\u636e\u4f1a\u600e\u6837\uff1f\u505a\u4e00\u6b21\u5d29\u6e83\u6062\u590d\u5b9e\u9a8c"},"content":{"rendered":"<p>\u4e00\u7b14\u66f4\u65b0\u5df2\u7ecf COMMIT&#xff0c;\u53e6\u4e00\u7b14\u521a\u6267\u884c\u5b8c UPDATE&#xff0c;\u8fd8\u6ca1\u6709\u63d0\u4ea4\u3002<\/p>\n<p>\u8fd9\u65f6 MySQL \u8fdb\u7a0b\u7a81\u7136\u6ca1\u4e86\u3002\u91cd\u542f\u4ee5\u540e&#xff0c;\u7b2c\u4e00\u7b14\u4f1a\u4e0d\u4f1a\u4e22&#xff1f;\u7b2c\u4e8c\u7b14\u53c8\u4f1a\u4e0d\u4f1a\u56e0\u4e3a\u6570\u636e\u5df2\u7ecf\u6539\u8fc7&#xff0c;\u88ab\u8bef\u5f53\u6210\u6210\u529f&#xff1f;<\/p>\n<p>\u65e7\u63d0\u7eb2\u91cc&#xff0c;Redo \u7684\u5237\u76d8\u3001\u4e8b\u52a1\u3001\u5d29\u6e83\u6062\u590d\u653e\u5728\u4e00\u8d77&#xff0c;\u5bb9\u6613\u6700\u540e\u53ea\u5269\u4e00\u53e5\u201c\u65e5\u5fd7\u4fdd\u8bc1\u5b89\u5168\u201d\u3002\u6211\u4eec\u628a\u4e24\u7b14\u66f4\u65b0\u5206\u5f00&#xff0c;\u5728\u4e13\u7528\u5b9e\u4f8b\u91cc\u5b9e\u9645\u4e2d\u65ad\u4e00\u6b21\u8fdb\u7a0b&#xff0c;\u770b\u770b\u6062\u590d\u540e\u7684\u6570\u636e\u3002<\/p>\n<p>\u53ea\u5728\u72ec\u7acb\u5b9e\u9a8c\u5b9e\u4f8b\u505a\u3002\u4e0d\u8981\u5bf9\u4e1a\u52a1\u6570\u636e\u5e93\u5c1d\u8bd5\u5f3a\u5236\u7ed3\u675f\u8fdb\u7a0b\u3002 \u8fd9\u6b21\u9a8c\u8bc1\u7684\u662f\u6570\u636e\u5e93\u8fdb\u7a0b\u5d29\u6e83&#xff0c;\u4e0d\u662f\u62d4\u7535\u6e90&#xff0c;\u4e5f\u4e0d\u662f\u6a21\u62df\u78c1\u76d8\u635f\u574f\u3002<\/p>\n<h3>\u5148\u628a\u4e24\u79cd\u4e8b\u52a1\u72b6\u6001\u505a\u51fa\u6765<\/h3>\n<p>\u5b9e\u9645\u73af\u5883\u662f Ubuntu 24.04 \u4e2d\u7684 MySQL 8.0.46\u3002\u7a0b\u5e8f\u65b0\u5efa\u7a7a\u6570\u636e\u76ee\u5f55&#xff0c;\u7981\u6b62 TCP&#xff0c;\u53ea\u7528\u5b83\u81ea\u5df1\u7684\u672c\u5730\u5957\u63a5\u5b57\u8bbf\u95ee&#xff0c;\u542f\u52a8\u65f6\u56fa\u5b9a innodb_flush_log_at_trx_commit&#061;1&#xff0c;\u5e76\u5173\u95ed binlog\u3002\u8fd9\u7bc7\u53ea\u89c2\u5bdf InnoDB \u672c\u5730\u6062\u590d&#xff0c;\u4e0d\u987a\u5e26\u63a8\u5bfc\u590d\u5236\u6216 binlog \u7684\u884c\u4e3a\u3002<\/p>\n<p>\u5148\u5f00 A\u3001B\u3001C \u4e09\u4e2a\u771f\u6b63\u72ec\u7acb\u7684\u6301\u7eed\u8fde\u63a5&#xff0c;\u9ed8\u8ba4 autocommit&#061;1\u3002C \u521d\u59cb\u5316\u4e13\u7528\u5b9e\u9a8c\u5e93&#xff1b;\u5e93\u540d\u82e5\u5df2\u5b58\u5728\u5c31\u6362\u540d\u5b57&#xff0c;\u4e0d\u8981\u5220\u9664\u5df2\u6709\u5e93&#xff1a;<\/p>\n<p>SELECT &#064;&#064;innodb_flush_log_at_trx_commit, &#064;&#064;autocommit, &#064;&#064;log_bin;<br \/>\nCREATE DATABASE blog_process_crash_lab;<br \/>\nUSE blog_process_crash_lab;<br \/>\nCREATE TABLE account (<br \/>\n  id INT PRIMARY KEY,<br \/>\n  balance INT NOT NULL<br \/>\n) ENGINE&#061;InnoDB;<br \/>\nINSERT INTO account VALUES (1, 1000), (2, 1000);<br \/>\nSELECT id, balance FROM account ORDER BY id;<\/p>\n<p>\u7b2c\u4e00\u884c\u7684\u4e09\u4e2a\u914d\u7f6e\u503c\u662f 1\u30011\u30010\u3002\u4e24\u6761\u8bb0\u5f55\u90fd\u662f 1000\u3002<\/p>\n<p>\u5728 A \u628a\u7b2c\u4e00\u6761\u6539\u4e3a 1100&#xff0c;\u7b49\u63d0\u4ea4\u6210\u529f\u8fd4\u56de&#xff1a;<\/p>\n<p>USE blog_process_crash_lab;<br \/>\nSTART TRANSACTION;<br \/>\nUPDATE account SET balance&#061;1100 WHERE id&#061;1;<br \/>\nCOMMIT;<br \/>\nSELECT balance FROM account WHERE id&#061;1;<\/p>\n<p>A \u5f97\u5230 1100\u3002<\/p>\n<p>\u518d\u5728 B \u4fee\u6539\u7b2c\u4e8c\u6761&#xff0c;\u4f46\u4e0d\u63d0\u4ea4&#xff0c;\u4e5f\u4e0d\u5173\u95ed\u8fde\u63a5&#xff1a;<\/p>\n<p>USE blog_process_crash_lab;<br \/>\nSTART TRANSACTION;<br \/>\nUPDATE account SET balance&#061;900 WHERE id&#061;2;<br \/>\nSELECT balance FROM account WHERE id&#061;2;<\/p>\n<p>B \u81ea\u5df1\u80fd\u67e5\u5230 900\u3002\u8fd9\u53ea\u80fd\u8bf4\u660e\u5b83\u5728\u81ea\u5df1\u7684\u4e8b\u52a1\u91cc\u770b\u5230\u4e86\u4fee\u6539&#xff0c;\u4e0d\u7b49\u4e8e\u522b\u4eba\u5df2\u7ecf\u8ba4\u53ef\u8fd9\u6b21\u66f4\u65b0\u3002<\/p>\n<p>\u7528 C \u770b\u4e00\u4e0b&#xff1a;<\/p>\n<p>SELECT id, balance FROM account ORDER BY id;<br \/>\nSELECT COUNT(*)<br \/>\nFROM information_schema.INNODB_TRX<br \/>\nWHERE trx_rows_modified &gt; 0;<\/p>\n<p>C \u67e5\u5230 1\u21921100\u30012\u21921000&#xff0c;\u8fd8\u6709\u4e00\u7b14\u4fee\u6539\u4e86\u6570\u636e\u3001\u5c1a\u672a\u7ed3\u675f\u7684\u4e8b\u52a1\u3002\u5b9e\u4f8b\u91cc\u6ca1\u6709\u5176\u4ed6\u4e1a\u52a1&#xff0c;\u6240\u4ee5\u8fd9\u7b14\u5c31\u662f B&#xff1b;\u9a8c\u8bc1\u7a0b\u5e8f\u8fd8\u4f1a\u6838\u5bf9\u5b83\u5bf9\u5e94\u7684\u8fde\u63a5\u7f16\u53f7&#xff0c;\u800c\u4e0d\u662f\u53ea\u6570\u4e2a\u6570\u3002<\/p>\n<p>\u73b0\u5728\u505c\u5728\u8fd9\u91cc&#xff1a;<\/p>\n<p>A&#xff1a;1\u53f7\u4f59\u989d\u6539\u62101100<br \/>\n   COMMIT\u6210\u529f\u8fd4\u56de<\/p>\n<p>B&#xff1a;2\u53f7\u4f59\u989d\u6539\u6210900<br \/>\n   \u6ca1\u6709COMMIT&#xff0c;\u8fde\u63a5\u8fd8\u5728<\/p>\n<p>C\u770b\u89c1&#xff1a;1\u53f71100&#xff0c;2\u53f71000<\/p>\n<p>A\u3001B \u64cd\u4f5c\u4e0d\u540c\u7684\u884c&#xff0c;\u907f\u514d\u628a\u201c\u7b2c\u4e8c\u7b14\u88ab\u9501\u4f4f\u6ca1\u6267\u884c\u201d\u9519\u5f53\u6210\u201c\u5df2\u7ecf\u4fee\u6539\u4f46\u5c1a\u672a\u63d0\u4ea4\u201d\u3002<\/p>\n<h3>\u4e0d\u8d70\u6b63\u5e38\u5173\u673a&#xff0c;\u518d\u7528\u540c\u4e00\u4e2a\u76ee\u5f55\u542f\u52a8<\/h3>\n<p>\u8fd9\u4e00\u6b65\u7531\u5b9e\u9a8c\u7a0b\u5e8f\u6267\u884c&#xff1a;\u5b83\u6301\u6709\u81ea\u5df1\u521b\u5efa\u7684 mysqld \u5b50\u8fdb\u7a0b\u53e5\u67c4&#xff0c;\u53ea\u5bf9\u8fd9\u4e2a\u5b50\u8fdb\u7a0b\u53d1\u9001 SIGKILL&#xff0c;\u7b49\u5f85\u5b83\u786e\u5b9e\u9000\u51fa&#xff0c;\u518d\u7528\u540c\u4e00\u4e2a\u6570\u636e\u76ee\u5f55\u91cd\u65b0\u542f\u52a8\u3002<\/p>\n<p>\u4e0d\u662f\u5148\u9000\u51fa B&#xff0c;\u518d\u505c\u6b62\u670d\u52a1\u3002\u90a3\u6837 B \u53ef\u80fd\u5df2\u7ecf\u56e0\u4e3a\u8fde\u63a5\u6b63\u5e38\u5173\u95ed\u800c\u56de\u6eda&#xff0c;\u89c2\u5bdf\u5230\u7684\u5c31\u4e0d\u662f\u8fd9\u6b21\u60f3\u9a8c\u8bc1\u7684\u72b6\u6001\u3002<\/p>\n<p>\u4e5f\u4e0d\u662f\u8c03\u7528\u6b63\u5e38\u5173\u95ed\u547d\u4ee4\u3002\u6b63\u5e38\u5173\u95ed\u548c\u7a81\u7136\u4e2d\u65ad&#xff0c;\u4f1a\u8d70\u4e0d\u540c\u7684\u6536\u5c3e\u8def\u5f84\u3002<\/p>\n<p>A\u5df2\u63d0\u4ea4&#xff0c;B\u672a\u63d0\u4ea4<br \/>\n        |<br \/>\n     SIGKILL<br \/>\n        |<br \/>\n\u65e7mysqld\u8fdb\u7a0b\u786e\u5b9e\u9000\u51fa<br \/>\n        |<br \/>\n\u540c\u4e00\u6570\u636e\u76ee\u5f55\u91cd\u65b0\u542f\u52a8<\/p>\n<p>\u7a0b\u5e8f\u6ca1\u6709\u7528 pkill mysqld \u8fd9\u7c7b\u6309\u540d\u79f0\u6279\u91cf\u7ed3\u675f\u8fdb\u7a0b\u7684\u65b9\u5f0f&#xff0c;\u4e5f\u4e0d\u4f1a\u4ece\u7528\u6237\u73b0\u6709\u5b9e\u4f8b\u91cc\u627e\u4e00\u4e2a\u6765\u4e2d\u65ad\u3002\u6570\u636e\u76ee\u5f55\u53ea\u521d\u59cb\u5316\u4e00\u6b21&#xff1b;\u5982\u679c\u91cd\u542f\u65f6\u91cd\u65b0\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u76ee\u5f55&#xff0c;\u8fd9\u4e2a\u5b9e\u9a8c\u5c31\u5931\u53bb\u610f\u4e49\u4e86\u3002<\/p>\n<h3>\u91cd\u542f\u540e\u7684\u7ed3\u679c<\/h3>\n<p>\u65b0\u5efa\u8fde\u63a5 D&#xff0c;\u5728\u91cd\u542f\u540e\u7684\u540c\u4e00\u4e2a\u5b9e\u4f8b\u67e5\u8be2&#xff1a;<\/p>\n<p>USE blog_process_crash_lab;<br \/>\nSELECT id, balance FROM account ORDER BY id;<\/p>\n<p>\u672c\u6b21\u5b9e\u9645\u5f97\u5230&#xff1a;<\/p>\n<p>id  balance<br \/>\n1   1100<br \/>\n2   1000<\/p>\n<p>\u5df2\u7ecf\u786e\u8ba4\u63d0\u4ea4\u7684\u7b2c\u4e00\u7b14\u4fdd\u7559\u4e0b\u6765&#xff0c;\u7b2c\u4e8c\u7b14\u6ca1\u6709\u53d8\u6210\u5df2\u63d0\u4ea4\u7684\u6570\u636e\u3002<\/p>\n<p>\u8fd8\u8981\u786e\u8ba4\u8fd9\u4e2a\u5b9e\u4f8b\u4e0d\u662f\u201c\u53ea\u80fd\u67e5&#xff0c;\u4e0d\u80fd\u7ee7\u7eed\u7528\u201d\u3002\u5728 D \u5bf9\u7b2c\u4e8c\u6761\u8bb0\u5f55\u505a\u4e00\u7b14\u65b0\u7684\u66f4\u65b0\u5e76\u63d0\u4ea4&#xff1a;<\/p>\n<p>START TRANSACTION;<br \/>\nUPDATE account SET balance&#061;1050 WHERE id&#061;2;<br \/>\nCOMMIT;<br \/>\nSELECT id, balance FROM account ORDER BY id;<\/p>\n<p>\u5f97\u5230 1\u21921100\u30012\u21921050\u3002\u65b0\u7684\u4fee\u6539\u53ef\u4ee5\u6b63\u5e38\u5b8c\u6210\u3002<\/p>\n<p>\u91cd\u542f\u9636\u6bb5\u7684\u9519\u8bef\u65e5\u5fd7\u4e5f\u5355\u72ec\u4fdd\u7559\u5e76\u6838\u5bf9\u4e86\u6062\u590d\u4fe1\u606f\u3002\u4ec5\u4ec5\u770b\u5230\u8fdb\u7a0b\u91cd\u65b0\u542f\u52a8&#xff0c;\u6216\u8005\u53ea\u770b\u5230\u4e00\u4e2a\u201cready\u201d\u5b57\u6837&#xff0c;\u4e0d\u591f\u8bc1\u660e\u6062\u590d\u540e\u7684\u4e8b\u52a1\u7ed3\u679c\u6b63\u786e&#xff1b;\u6570\u636e\u8fd8\u8981\u67e5\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u4e0d\u662f\u7b49\u6bcf\u4e2a\u6570\u636e\u9875\u90fd\u5199\u597d\u624d\u63d0\u4ea4&#xff1f;<\/h3>\n<p>\u5148\u60f3\u4e00\u79cd\u76f4\u63a5\u7684\u505a\u6cd5&#xff1a;\u4e8b\u52a1\u6539\u8fc7\u54ea\u4e9b\u6570\u636e\u9875&#xff0c;\u63d0\u4ea4\u65f6\u5c31\u628a\u8fd9\u4e9b\u9875\u90fd\u5199\u5230\u6700\u7ec8\u4f4d\u7f6e&#xff0c;\u5199\u5b8c\u624d\u544a\u8bc9\u7528\u6237\u6210\u529f\u3002<\/p>\n<p>\u4e00\u7b14\u66f4\u65b0\u53ef\u80fd\u6d89\u53ca\u4e0d\u6b62\u4e00\u4e2a\u9875&#xff0c;\u800c\u4e14\u5f88\u591a\u9875\u5e76\u4e0d\u6328\u7740\u3002\u82e5\u6bcf\u7b14\u63d0\u4ea4\u90fd\u540c\u6b65\u7b49\u6240\u6709\u6570\u636e\u9875\u5b8c\u6210\u5199\u5165&#xff0c;\u63d0\u4ea4\u8def\u5f84\u4f1a\u66f4\u91cd&#xff0c;\u540e\u53f0\u4e5f\u66f4\u96be\u628a\u591a\u4e2a\u4fee\u6539\u5408\u5e76\u5904\u7406\u3002<\/p>\n<p>InnoDB \u7684\u505a\u6cd5\u4e0d\u8981\u6c42\u201c\u63d0\u4ea4\u6210\u529f\u201d\u7b49\u4ef7\u4e8e\u201c\u6240\u6709\u4fee\u6539\u8fc7\u7684\u6570\u636e\u9875\u90fd\u5df2\u5199\u5230\u6700\u7ec8\u4f4d\u7f6e\u201d\u3002\u5b83\u501f\u52a9\u65e5\u5fd7&#xff0c;\u8ba9\u5fc5\u8981\u7684\u91cd\u505a\u4fe1\u606f\u5148\u6ee1\u8db3\u6301\u4e45\u5316\u8981\u6c42&#xff0c;\u6570\u636e\u9875\u518d\u6309\u81ea\u5df1\u7684\u5237\u5199\u8282\u594f\u63a8\u8fdb\u3002\u65e5\u5fd7\u63d0\u4ea4\u53c2\u6570\u8bf4\u660e<\/p>\n<p>\u4fee\u6539\u6570\u636e\u9875&#xff0c;\u4ea7\u751f\u76f8\u5173\u65e5\u5fd7<br \/>\n             |<br \/>\n\u63d0\u4ea4&#xff1a;\u6309\u914d\u7f6e\u5b8c\u6210\u65e5\u5fd7\u6301\u4e45\u5316\u8981\u6c42<br \/>\n             |<br \/>\n        \u544a\u8bc9\u5ba2\u6237\u7aef\u6210\u529f<\/p>\n<p>\u6570\u636e\u9875\u5237\u5199\u6709\u81ea\u5df1\u7684\u63a8\u8fdb\u8282\u594f<br \/>\n\u4e0d\u8981\u6c42\u8fd9\u65f6\u6240\u6709\u9875\u90fd\u5df2\u5199\u5b8c<\/p>\n<p>\u672c\u4f8b\u628a innodb_flush_log_at_trx_commit \u56fa\u5b9a\u4e3a 1&#xff1a;\u63d0\u4ea4\u65f6&#xff0c;Redo \u5199\u5165\u5e76\u5237\u5230\u6301\u4e45\u5b58\u50a8\u7684\u8981\u6c42\u662f\u8fd9\u91cc\u8ba8\u8bba\u7684\u524d\u63d0\u3002\u5b83\u4ecd\u4f9d\u8d56\u64cd\u4f5c\u7cfb\u7edf\u548c\u5b58\u50a8\u8bbe\u5907\u6b63\u786e\u5c65\u884c\u5237\u5199\u8bed\u4e49&#xff0c;\u4e0d\u80fd\u8131\u79bb\u8fd9\u5c42\u524d\u63d0\u8bf4\u201c\u65e5\u5fd7\u7edd\u5bf9\u4e0d\u4f1a\u4e22\u201d\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u4e2a\u8fb9\u754c&#xff1a;\u6211\u4eec\u6ca1\u6709\u622a\u4f4f\u67d0\u4e2a\u9875\u7684\u5237\u5199&#xff0c;\u4e5f\u6ca1\u6709\u9010\u9875\u68c0\u67e5\u5b83\u5728\u5d29\u6e83\u524d\u662f\u5426\u843d\u76d8\u3002\u6240\u4ee5\u4e0d\u80fd\u4ec5\u51ed 1100 \u4fdd\u7559\u4e0b\u6765&#xff0c;\u5c31\u5ba3\u79f0\u201c\u8fd9\u4e00\u884c\u5f53\u65f6\u80af\u5b9a\u53ea\u5728\u5185\u5b58&#xff0c;\u540e\u6765\u5fc5\u7136\u5168\u9760Redo\u6062\u590d\u201d\u3002\u8fd9\u6b21\u9a8c\u8bc1\u4e86\u8fdb\u7a0b\u4e2d\u65ad\u540e\u7684\u7ed3\u679c&#xff0c;\u4e0d\u662f\u4e3a\u6bcf\u4e2a\u9875\u62cd\u4e86\u4e00\u5f20\u843d\u76d8\u73b0\u573a\u7167\u3002<\/p>\n<h3>Redo\u91cd\u505a\u4e86\u4fee\u6539&#xff0c;\u672a\u63d0\u4ea4\u7684900\u600e\u4e48\u6ca1\u7559\u4e0b&#xff1f;<\/h3>\n<p>\u5bb9\u6613\u4ea7\u751f\u7684\u4e00\u4e2a\u8bef\u89e3\u662f&#xff1a;Redo \u53ea\u4f1a\u8bb0\u5f55\u63d0\u4ea4\u8fc7\u7684\u4e8b\u52a1&#xff0c;\u6240\u4ee5\u6ca1\u63d0\u4ea4\u7684 B \u6839\u672c\u4e0d\u4f1a\u51fa\u73b0\u5728\u65e5\u5fd7\u91cc\u3002<\/p>\n<p>\u4e0d\u80fd\u8fd9\u6837\u7406\u89e3\u3002\u672a\u63d0\u4ea4\u4e8b\u52a1\u4ea7\u751f\u7684\u9875\u4fee\u6539&#xff0c;\u4e5f\u53ef\u80fd\u5df2\u7ecf\u6709\u76f8\u5173 Redo \u88ab\u5199\u51fa&#xff0c;\u6570\u636e\u9875\u4e5f\u4e0d\u80fd\u88ab\u7b80\u5355\u7406\u89e3\u6210\u201c\u4e8b\u52a1\u63d0\u4ea4\u524d\u6c38\u8fdc\u4e0d\u4f1a\u5237\u201d\u3002\u56e0\u6b64\u6062\u590d\u4e0d\u80fd\u53ea\u505a\u4e00\u4ef6\u4e8b&#xff1a;\u201c\u628a\u770b\u89c1\u7684\u9875\u4fee\u6539\u90fd\u6062\u590d&#xff0c;\u7136\u540e\u5168\u90e8\u5f53\u6210\u529f\u201d\u3002<\/p>\n<p>InnoDB \u7684\u6062\u590d\u8fd8\u8981\u5904\u7406\u672a\u5b8c\u6210\u4e8b\u52a1&#xff0c;\u5e76\u5229\u7528 Undo \u64a4\u9500\u4e0d\u5e94\u4fdd\u7559\u4e3a\u5df2\u63d0\u4ea4\u7ed3\u679c\u7684\u4fee\u6539\u3002InnoDB \u6062\u590d\u8bf4\u660e<\/p>\n<p>\u6062\u590d\u9700\u8981\u7684\u6570\u636e\u9875\u72b6\u6001<br \/>\n          |<br \/>\n\u7ed3\u5408\u4e8b\u52a1\u72b6\u6001\u5904\u7406\u672a\u5b8c\u6210\u4e8b\u52a1<br \/>\n          |<br \/>\n\u672a\u63d0\u4ea4\u7684\u4fee\u6539\u4e0d\u80fd\u53d8\u6210\u6709\u6548\u63d0\u4ea4<\/p>\n<p>\u672c\u4f8b\u67e5\u8be2\u7ed3\u679c&#xff1a;2\u53f7\u4ecd\u662f1000<\/p>\n<p>\u8fd9\u91cc\u662f\u5e2e\u52a9\u7406\u89e3\u804c\u8d23\u7684\u7b80\u56fe&#xff0c;\u4e0d\u662f\u4e00\u4efd\u5b8c\u6574\u7684\u542f\u52a8\u65f6\u5e8f\u56fe\u3002\u771f\u5b9e\u6062\u590d\u6709\u591a\u4e2a\u9636\u6bb5&#xff0c;\u56de\u6eda\u4e5f\u53ef\u80fd\u5728\u540e\u53f0\u63a8\u8fdb&#xff0c;\u4e0d\u80fd\u628a\u7b80\u56fe\u5f53\u6210\u201c\u4e00\u5b9a\u6240\u6709\u56de\u6eda\u7ed3\u675f\u540e\u624d\u63a5\u6536\u4efb\u4f55\u8fde\u63a5\u201d\u3002<\/p>\n<p>\u540c\u6837&#xff0c;Redo \u4e5f\u4e0d\u662f\u628a\u8fd9\u51e0\u6761 UPDATE SQL \u539f\u6837\u518d\u6267\u884c\u4e00\u904d\u3002\u522b\u628a\u9875\u76f8\u5173\u7684\u6062\u590d\u4fe1\u606f&#xff0c;\u548c\u590d\u5236\u91cc\u5e38\u63d0\u5230\u7684\u8bed\u53e5\u91cd\u653e\u6df7\u5728\u4e00\u8d77\u3002<\/p>\n<h3>\u8fd9\u6b21\u6ca1\u6709\u9a8c\u8bc1\u4ec0\u4e48&#xff1f;<\/h3>\n<p>\u6211\u4eec\u5f3a\u5236\u7ed3\u675f\u7684\u662f\u6570\u636e\u5e93\u8fdb\u7a0b&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u8fd8\u5728\u8fd0\u884c&#xff0c;\u64cd\u4f5c\u7cfb\u7edf\u7684\u7f13\u5b58\u6ca1\u6709\u56e0\u4e3a\u62d4\u7535\u6e90\u800c\u6d88\u5931\u3002\u78c1\u76d8\u4e5f\u6ca1\u6709\u88ab\u6545\u610f\u5f04\u574f\u3002\u8fd9\u4e0e\u6574\u673a\u6389\u7535\u3001\u63a7\u5236\u5668\u7f13\u5b58\u4e22\u5931\u3001\u9875\u53ea\u5199\u4e86\u4e00\u534a&#xff0c;\u4e0d\u662f\u540c\u4e00\u79cd\u6545\u969c\u3002<\/p>\n<p>\u6240\u4ee5\u672c\u4f8b\u6ca1\u6709\u9a8c\u8bc1 doublewrite \u5982\u4f55\u4fee\u590d\u6495\u88c2\u9875&#xff0c;\u4e5f\u6ca1\u6709\u6bd4\u8f83\u63d0\u4ea4\u53c2\u6570 0\u30011\u30012 \u7684\u65ad\u7535\u4e22\u5931\u6982\u7387\u3002\u4e00\u6b21\u8fdb\u7a0b\u5d29\u6e83\u6ca1\u4e22\u6570\u636e&#xff0c;\u4e0d\u80fd\u8bc1\u660e\u6240\u6709\u914d\u7f6e\u65ad\u7535\u90fd\u5b89\u5168\u3002<\/p>\n<p>\u53e6\u4e00\u4e2a\u6ca1\u6709\u6a21\u62df\u7684\u662f&#xff1a;\u670d\u52a1\u5df2\u7ecf\u63d0\u4ea4\u6210\u529f&#xff0c;\u4f46\u6210\u529f\u54cd\u5e94\u5728\u5230\u8fbe\u5ba2\u6237\u7aef\u524d\u4e22\u4e86\u3002\u8fd9\u65f6\u5ba2\u6237\u7aef\u53ea\u770b\u5230\u8d85\u65f6&#xff0c;\u4e0d\u80fd\u9a6c\u4e0a\u65ad\u8a00\u4e8b\u52a1\u5931\u8d25&#xff0c;\u66f4\u4e0d\u80fd\u76f2\u76ee\u91cd\u8bd5\u6263\u6b3e&#xff1b;\u9700\u8981\u4e1a\u52a1\u6d41\u6c34\u3001\u5e42\u7b49\u548c\u7ed3\u679c\u67e5\u8be2\u3002\u6211\u4eec\u8fd9\u91cc\u660e\u786e\u5148\u7b49 A \u7684 COMMIT \u6210\u529f\u8fd4\u56de&#xff0c;\u518d\u4e2d\u65ad\u8fdb\u7a0b&#xff0c;\u6392\u9664\u4e86\u8fd9\u4e2a\u6b67\u4e49\u3002<\/p>\n<h4>\u9a8c\u8bc1\u7a0b\u5e8f\u600e\u6837\u5b89\u6392<\/h4>\n<p>\u7a0b\u5e8f\u65b0\u5efa\u968f\u673a\u540d\u79f0\u7684\u5b9e\u9a8c\u76ee\u5f55&#xff0c;\u5e76\u4ee5\u65b0\u7684\u7a7a\u6570\u636e\u76ee\u5f55\u521d\u59cb\u5316\u5b9e\u4f8b\u3002A\u3001B\u3001C \u662f\u6301\u7eed\u7684\u4e09\u4e2a MySQL \u5ba2\u6237\u7aef\u8fdb\u7a0b&#xff0c;\u6309\u6b63\u6587\u7247\u6bb5\u53d1\u9001 SQL&#xff0c;\u4e0d\u628a\u4e00\u4e32\u547d\u4ee4\u62c6\u6210\u4e92\u4e0d\u76f8\u5e72\u7684\u77ed\u8fde\u63a5\u3002<\/p>\n<p>\u4e2d\u65ad\u524d\u540c\u65f6\u6838\u5bf9 A \u7684\u63d0\u4ea4\u540e\u503c\u3001B \u81ea\u5df1\u8bfb\u5230\u7684\u672a\u63d0\u4ea4\u503c\u3001C \u770b\u5230\u7684\u5df2\u63d0\u4ea4\u503c&#xff0c;\u4ee5\u53ca B \u4ecd\u5728\u4e8b\u52a1\u5217\u8868\u4e2d\u3002\u53ea\u6709\u8fd9\u4e9b\u72b6\u6001\u90fd\u5bf9\u4e0a&#xff0c;\u624d\u5bf9\u81ea\u5df1\u521b\u5efa\u7684\u670d\u52a1\u5668\u5b50\u8fdb\u7a0b\u53d1\u51fa\u4e0d\u53ef\u6b63\u5e38\u6536\u5c3e\u7684\u7ec8\u6b62\u4fe1\u53f7\u3002<\/p>\n<p>\u65e7\u670d\u52a1\u5668\u9000\u51fa\u540e&#xff0c;\u7a0b\u5e8f\u624d\u5173\u95ed\u65e7\u5ba2\u6237\u7aef\u5e76\u542f\u52a8\u65b0\u670d\u52a1\u5668&#xff0c;\u4e0d\u63d0\u524d\u8ba9 B \u6b63\u5e38\u65ad\u5f00\u3002\u65b0\u670d\u52a1\u5668\u6cbf\u7528\u540c\u4e00\u6570\u636e\u76ee\u5f55&#xff0c;\u4e0d\u5220\u65e5\u5fd7\u3001\u4e0d\u91cd\u65b0\u521d\u59cb\u5316\u3001\u4e0d\u5c1d\u8bd5\u5f3a\u5236\u6062\u590d\u53c2\u6570\u3002D \u518d\u6838\u5bf9\u5168\u90e8\u884c&#xff0c;\u5e76\u6267\u884c\u540e\u7eed\u66f4\u65b0\u3002<\/p>\n<p>\u8fd9\u4e9b\u68c0\u67e5\u5206\u522b\u9632\u6b62\u4e86\u51e0\u79cd\u201c\u770b\u4f3c\u6d4b\u8fc7\u201d\u7684\u9519\u8bef&#xff1a;\u4e2d\u65ad\u4e86\u9519\u8bef\u7684\u5b9e\u4f8b\u3001B 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