{"id":2291,"date":"2020-08-18T16:05:16","date_gmt":"2020-08-18T08:05:16","guid":{"rendered":"http:\/\/39.97.231.10\/?p=2291"},"modified":"2020-08-18T16:05:16","modified_gmt":"2020-08-18T08:05:16","slug":"mysql%e7%9a%84%e5%ad%98%e5%82%a8%e5%bc%95%e6%93%8e","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=2291","title":{"rendered":"MySQL\u7684\u5b58\u50a8\u5f15\u64ce"},"content":{"rendered":"

1.1 \u5b58\u50a8\u5f15\u64ce\u7684\u4ecb\u7ecd<\/span><\/h2>\n

\n

1.1.1 \u6587\u4ef6\u7cfb\u7edf\u5b58\u50a8<\/span><\/h3>\n

\u3000\u3000\u6587\u4ef6\u7cfb\u7edf\uff1a\u64cd\u4f5c\u7cfb\u7edf\u7ec4\u7ec7\u548c\u5b58\u53d6\u6570\u636e\u7684\u4e00\u79cd\u673a\u5236\u3002\u6587\u4ef6\u7cfb\u7edf\u662f\u4e00\u79cd\u8f6f\u4ef6\u3002<\/p>\n

\u3000\u3000\u7c7b\u578b\uff1aext2 3 4 \uff0cxfs \u6570\u636e\u3002\u00a0 \u4e0d\u7ba1\u4f7f\u7528\u4ec0\u4e48\u6587\u4ef6\u7cfb\u7edf\uff0c\u6570\u636e\u5185\u5bb9\u4e0d\u4f1a\u53d8\u5316\uff0c\u4e0d\u540c\u7684\u662f\uff0c\u5b58\u50a8\u7a7a\u95f4\u3001\u5927\u5c0f\u3001\u901f\u5ea6\u3002<\/p>\n

1.1.2 mysql\u6570\u636e\u5e93\u5b58\u50a8<\/span><\/h3>\n

\u3000\u3000MySQL\u5f15\u64ce\uff1a \u53ef\u4ee5\u7406\u89e3\u4e3a\uff0cMySQL\u7684\u201c\u6587\u4ef6\u7cfb\u7edf\u201d\uff0c\u53ea\u4e0d\u8fc7\u529f\u80fd\u66f4\u52a0\u5f3a\u5927\u3002<\/p>\n

\u3000\u3000MySQL\u5f15\u64ce\u529f\u80fd\uff1a \u9664\u4e86\u53ef\u4ee5\u63d0\u4f9b\u57fa\u672c\u7684\u5b58\u53d6\u529f\u80fd\uff0c\u8fd8\u6709\u66f4\u591a\u529f\u80fd\u4e8b\u52a1\u529f\u80fd\u3001\u9501\u5b9a\u3001\u5907\u4efd\u548c\u6062\u590d\u3001\u4f18\u5316\u4ee5\u53ca\u7279\u6b8a\u529f\u80fd\u3002<\/p>\n

1.1.3 MySQL\u5b58\u50a8\u5f15\u64ce\u79cd\u7c7b<\/span><\/h3>\n

MySQL \u63d0\u4f9b\u4ee5\u4e0b\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n

InnoDB\u3001MyISAM (\u6700\u5e38\u7528\u7684\u4e24\u79cd) MEMORY\u3001ARCHIVE\u3001FEDERATED\u3001EXAMPLE BLACKHOLE\u3001MERGE\u3001NDBCLUSTER\u3001CSV<\/span><\/p>\n

\u3000\u3000\u9664\u6b64\u4e4b\u5916\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u65b9\u5b58\u50a8\u5f15\u64ce\u3002<\/p>\n

1.1.4 innodb\u4e0emyisam\u5bf9\u6bd4<\/span><\/h3>\n

InnoDb<\/strong>\u5f15\u64ce<\/strong><\/span><\/p>\n

    \n
  1. \u652f\u6301ACID\u7684\u4e8b\u52a1\uff0c\u652f\u6301\u4e8b\u52a1\u7684\u56db\u79cd\u9694\u79bb\u7ea7\u522b\uff1b<\/li>\n
  2. \u652f\u6301\u884c\u7ea7\u9501\u53ca\u5916\u952e\u7ea6\u675f\uff1a\u56e0\u6b64\u53ef\u4ee5\u652f\u6301\u5199\u5e76\u53d1\uff1b<\/li>\n
  3. \u4e0d\u5b58\u50a8\u603b\u884c\u6570\uff1b<\/li>\n
  4. \u4e00\u4e2aInnoDb\u5f15\u64ce\u5b58\u50a8\u5728\u4e00\u4e2a\u6587\u4ef6\u7a7a\u95f4\uff08\u5171\u4eab\u8868\u7a7a\u95f4\uff0c\u8868\u5927\u5c0f\u4e0d\u53d7\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\uff0c\u4e00\u4e2a\u8868\u53ef\u80fd\u5206\u5e03\u5728\u591a\u4e2a\u6587\u4ef6\u91cc\uff09\uff0c\u4e5f\u6709\u53ef\u80fd\u4e3a\u591a\u4e2a\uff08\u8bbe\u7f6e\u4e3a\u72ec\u7acb\u8868\u7a7a\uff0c\u8868\u5927\u5c0f\u53d7\u64cd\u4f5c\u7cfb\u7edf\u6587\u4ef6\u5927\u5c0f\u9650\u5236\uff0c\u4e00\u822c\u4e3a2G\uff09\uff0c\u53d7\u64cd\u4f5c\u7cfb\u7edf\u6587\u4ef6\u5927\u5c0f\u7684\u9650\u5236\uff1b<\/li>\n
  5. \u4e3b\u952e\u7d22\u5f15\u91c7\u7528\u805a\u96c6\u7d22\u5f15\uff08\u7d22\u5f15\u7684\u6570\u636e\u57df\u5b58\u50a8\u6570\u636e\u6587\u4ef6\u672c\u8eab\uff09\uff0c\u8f85\u7d22\u5f15\u7684\u6570\u636e\u57df\u5b58\u50a8\u4e3b\u952e\u7684\u503c\uff1b\u56e0\u6b64\u4ece\u8f85\u7d22\u5f15\u67e5\u627e\u6570\u636e\uff0c\u9700\u8981\u5148\u901a\u8fc7\u8f85\u7d22\u5f15\u627e\u5230\u4e3b\u952e\u503c\uff0c\u518d\u8bbf\u95ee\u8f85\u7d22\u5f15\uff1b\u6700\u597d\u4f7f\u7528\u81ea\u589e\u4e3b\u952e\uff0c\u9632\u6b62\u63d2\u5165\u6570\u636e\u65f6\uff0c\u4e3a\u7ef4\u6301B+\u6811\u7ed3\u6784\uff0c\u6587\u4ef6\u7684\u5927\u8c03\u6574\u3002<\/li>\n<\/ol>\n

    Innodb<\/span><\/em><\/i>\u7684\u4e3b\u7d22\u5f15\u7ed3\u6784\u5982\u4e0b\uff1a<\/span><\/em><\/i><\/p>\n

    \n

    MyISAM<\/strong>\u5f15\u64ce<\/strong><\/span><\/p>\n

      \n
    1. \u4e0d\u652f\u6301\u4e8b\u52a1\uff0c\u4f46\u662f\u6bcf\u6b21\u67e5\u8be2\u90fd\u662f\u539f\u5b50\u7684\uff1b<\/li>\n
    2. \u652f\u6301\u8868\u7ea7\u9501\uff0c\u5373\u6bcf\u6b21\u64cd\u4f5c\u662f\u5bf9\u6574\u4e2a\u8868\u52a0\u9501\uff1b<\/li>\n
    3. \u5b58\u50a8\u8868\u7684\u603b\u884c\u6570\uff1b<\/li>\n
    4. \u4e00\u4e2aMYISAM\u8868\u6709\u4e09\u4e2a\u6587\u4ef6\uff1a\u7d22\u5f15\u6587\u4ef6\u3001\u8868\u7ed3\u6784\u6587\u4ef6\u3001\u6570\u636e\u6587\u4ef6\uff1b<\/li>\n
    5. \u91c7\u7528\u83f2\u805a\u96c6\u7d22\u5f15\uff0c\u7d22\u5f15\u6587\u4ef6\u7684\u6570\u636e\u57df\u5b58\u50a8\u6307\u5411\u6570\u636e\u6587\u4ef6\u7684\u6307\u9488\u3002\u8f85\u7d22\u5f15\u4e0e\u4e3b\u7d22\u5f15\u57fa\u672c\u4e00\u81f4\uff0c\u4f46\u662f\u8f85\u7d22\u5f15\u4e0d\u7528\u4fdd\u8bc1\u552f\u4e00\u6027\u3002<\/li>\n<\/ol>\n

      MYISAM<\/span><\/em><\/i>\u7684\u4e3b\u7d22\u5f15\u7ed3\u6784\u5982\u4e0b\uff1a<\/span><\/em><\/i><\/p>\n

      \n

      \u4e24\u79cd\u7d22\u5f15\u6570\u636e\u67e5\u627e\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/strong><\/span><\/p>\n

      \n

      1.2 innodb\u5b58\u50a8\u5f15\u64ce<\/span><\/h2>\n

      \u3000\u3000\u5728MySQL5.5\u7248\u672c\u4e4b\u540e\uff0c\u9ed8\u8ba4\u7684\u5b58\u50a8\u5f15\u64ce<\/strong>\uff0c\u63d0\u4f9b\u9ad8\u53ef\u9760\u6027\u548c\u9ad8\u6027\u80fd\u3002<\/p>\n

      1.2.1 Innodb\u5f15\u64ce\u7684\u4f18\u70b9<\/span><\/h3>\n
        \n
      1. a) \u4e8b\u52a1\u5b89\u5168\uff08\u9075\u4eceACID\uff09 b) MVCC\uff08Multi<\/span>–<\/span>Versioning Concurrency Control\uff0c\u591a\u7248\u672c\u5e76\u53d1\u63a7\u5236\uff09 c) InnoDB\u884c\u7ea7\u9501 d) \u652f\u6301\u5916\u952e\u5f15\u7528\u5b8c\u6574\u6027\u7ea6\u675f e) \u51fa\u73b0\u6545\u969c\u540e\u5feb\u901f\u81ea\u52a8\u6062\u590d\uff08crash safe recovery\uff09 f) \u7528\u4e8e\u5728\u5185\u5b58\u4e2d\u7f13\u5b58\u6570\u636e\u548c\u7d22\u5f15\u7684\u7f13\u51b2\u533a\u6c60\uff08buffer pool\uff08data buffer page <\/span>log<\/span> buffer page\uff09 \u3001undo buffer page\uff09 g) \u5927\u578b\u6570\u636e\u5377\u4e0a\u7684\u6700\u5927\u6027\u80fd h) \u5c06\u5bf9\u8868\u7684\u67e5\u8be2\u4e0e\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\u6df7\u5408 i) Oracle\u6837\u5f0f\u4e00\u81f4\u975e\u9501\u5b9a\u8bfb\u53d6(\u5171\u4eab\u9501) j) \u8868\u6570\u636e\u8fdb\u884c\u6574\u7406\u6765\u4f18\u5316\u57fa\u4e8e\u4e3b\u952e\u7684\u67e5\u8be2\uff08\u805a\u96c6\u7d22\u5f15\uff09<\/span><\/li>\n<\/ol>\n

        1.2.2 Innodb\u529f\u80fd\u603b\u89c8<\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
        \n

        \u529f\u80fd<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u652f\u6301<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u529f\u80fd<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u652f\u6301<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u5b58\u50a8\u9650\u5236<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        64 TB<\/span><\/p>\n<\/td>\n

        		\n

        \u7d22\u5f15\u9ad8\u901f\u7f13\u5b58<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        MVCC<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u6570\u636e\u9ad8\u901f\u7f13\u5b58<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        B\u00a0<\/span><\/strong>\u6811\u7d22\u5f15<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u81ea\u9002\u5e94\u6563\u5217\u7d22\u5f15<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u7fa4\u96c6\u7d22\u5f15<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u590d\u5236<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u538b\u7f29\u6570\u636e<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u66f4\u65b0\u6570\u636e\u5b57\u5178<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u52a0\u5bc6\u6570\u636e<\/span>[b]<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u5730\u7406\u7a7a\u95f4\u6570\u636e\u7c7b\u578b<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u67e5\u8be2\u9ad8\u901f\u7f13\u5b58<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u5730\u7406\u7a7a\u95f4\u7d22\u5f15<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u5426<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u4e8b\u52a1<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u5168\u6587\u641c\u7d22\u7d22\u5f15<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u9501\u5b9a\u7c92\u5ea6<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u884c<\/span><\/p>\n<\/td>\n

        		\n

        \u7fa4\u96c6\u6570\u636e\u5e93<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u5426<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u5916\u952e<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u5907\u4efd\u548c\u6062\u590d<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u6587\u4ef6\u683c\u5f0f\u7ba1\u7406<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u5feb\u901f\u7d22\u5f15\u521b\u5efa<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u591a\u4e2a\u7f13\u51b2\u533a\u6c60<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        PERFORMANCE_SCHEMA<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n

        \n

        \u66f4\u6539\u7f13\u51b2<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n

        		\n

        \u81ea\u52a8\u6545\u969c\u6062\u590d<\/span><\/strong><\/p>\n<\/td>\n

        		\n

        \u662f<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        1.2.3 \u67e5\u8be2\u5b58\u50a8\u5f15\u64ce\u7684\u65b9\u6cd5<\/span><\/h3>\n

        1\u3001\u4f7f\u7528 SELECT \u786e\u8ba4\u4f1a\u8bdd\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n

        SELECT<\/span> @@default_storage_engine<\/span><\/b>; \u6216 show variables <\/span>like<\/span> \\’<\/span>%engine%<\/span>\\’<\/span>;<\/p>\n

        2\u3001\u4f7f\u7528 SHOW \u786e\u8ba4\u6bcf\u4e2a\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n

        SHOW CREATE<\/span> TABLE<\/span> City\\\\G SHOW <\/span>TABLE<\/span> STATUS LIKE<\/span> \\’<\/span>CountryLanguage<\/span>\\’<\/span>\\\\G<\/p>\n

        3\u3001\u4f7f\u7528 INFORMATION_SCHEMA \u786e\u8ba4\u6bcf\u4e2a\u8868\u7684\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n

        SELECT<\/span> TABLE_NAME, ENGINE FROM<\/span> INFORMATION_SCHEMA.TABLES <\/span>WHERE<\/span> TABLE_NAME =<\/span> \\’<\/span>City<\/span>\\’<\/span> AND<\/span> TABLE_SCHEMA =<\/span> \\’<\/span>world_innodb<\/span>\\’<\/span>\\\\G<\/p>\n

        4\u3001\u4ece5.1\u7248\u672c\uff0c\u8fc1\u79fb\u52305.5\u7248\u672c\u4ee5\u4e0a\u7248\u672c<\/p>\n

        \u00a0\u00a0 \u3000\u3000\u5047\u59825.1\u7248\u672c\u6570\u636e\u5e93\u6240\u6709\u751f\u4ea7\u8868\u90fd\u662fmyisam\u7684\u3002<\/p>\n

        \u00a0\u00a0\u3000\u3000 \u4f7f\u7528mysqldump\u5907\u4efd\u540e\uff0c\u4e00\u70b9\u8981\u66ff\u6362\u5907\u4efd\u7684\u6587\u4ef6\u4e2d\u7684engine(\u5f15\u64ce)\u5b57\u6bb5\uff0c\u4ecemyisam\u66ff\u6362\u4e3ainnodb\uff08\u53ef\u4ee5\u4f7f\u7528sed\u547d\u4ee4\uff09\uff0c\u5426\u5219\u8fc1\u79fb\u65e0\u4efb\u4f55\u610f\u4e49\u3002<\/p>\n

        \u00a0\u00a0\u3000\u3000 \u6570\u636e\u5e93\u5347\u7ea7\u65f6\uff0c\u8981\u6ce8\u610f\u5176\u4ed6\u914d\u5957\u8bbe\u65bd\u7684\u517c\u5bb9\u6027\uff0c\u6ce8\u610f\u4ee3\u7801\u80fd\u5426\u517c\u5bb9\u65b0\u7279\u6027\u3002<\/p>\n

        1.2.4 \u8bbe\u7f6e\u5b58\u50a8\u5f15\u64ce<\/span><\/h3>\n

        1\u3001\u5728\u542f\u52a8\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u670d\u52a1\u5668\u5b58\u50a8\u5f15\u64ce\uff1a<\/p>\n

        [<\/span>mysqld<\/span>]<\/span> default<\/span>–<\/span>storage–<\/span>engine=<<\/span>Storage Engine><\/span><\/p>\n

        2\u3001\u4f7f\u7528 SET \u547d\u4ee4\u4e3a\u5f53\u524d\u5ba2\u6237\u673a\u4f1a\u8bdd\u8bbe\u7f6e\uff1a<\/p>\n

        SET<\/span> @@storage_engine<\/span><\/b>=<<\/span>Storage Engine><\/span>;<\/p>\n

        3\u3001\u5728 CREATE TABLE \u8bed\u53e5\u6307\u5b9a\uff1a<\/p>\n

        CREATE<\/span> TABLE<\/span> t (i INT<\/span>) ENGINE =<\/span> <<\/span>Storage Engine><\/span>;<\/p>\n

        1.3 InnoDB\u5b58\u50a8\u5f15\u64ce\u7684\u5b58\u50a8\u7ed3\u6784<\/span><\/h2>\n

        1.3.1 InnoDB \u7cfb\u7edf\u8868\u7a7a\u95f4\u7279\u6027<\/span><\/h3>\n
          \n
        1. \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cInnoDB \u5143\u6570\u636e\u3001\u64a4\u6d88\u65e5\u5fd7\u548c\u7f13\u51b2\u533a\u5b58\u50a8\u5728\u7cfb\u7edf\u201c\u8868\u7a7a\u95f4\u201d\u4e2d\u3002<\/li>\n
        2. \u8fd9\u662f\u5355\u4e2a\u903b\u8f91\u5b58\u50a8\u533a\u57df\uff0c\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u6587\u4ef6\u3002<\/li>\n
        3. \u6bcf\u4e2a\u6587\u4ef6\u53ef\u4ee5\u662f\u5e38\u89c4\u6587\u4ef6\u6216\u539f\u59cb\u5206\u533a\u3002<\/li>\n
        4. \u6700\u540e\u7684\u6587\u4ef6\u53ef\u4ee5\u81ea\u52a8\u6269\u5c55\u3002<\/li>\n<\/ol>\n

          1.3.2 \u8868\u7a7a\u95f4\u7684\u5b9a\u4e49<\/span><\/h3>\n

          \u3000\u3000\u8868\u7a7a\u95f4\uff1aMySQL\u6570\u636e\u5e93\u5b58\u50a8\u7684\u65b9\u5f0f<\/p>\n

          \u3000\u3000\u3000\u3000\u8868\u7a7a\u95f4\u4e2d\u5305\u542b\u6570\u636e\u6587\u4ef6<\/p>\n

          \u3000\u3000MySQl\u8868\u7a7a\u95f4\u548c\u6570\u636e\u6587\u4ef6\u662f1:1\u7684\u5173\u7cfb<\/p>\n

          \u3000\u3000\u3000\u3000\u5171\u4eab\u8868\u7a7a\u95f4\u9664\u5916\uff0c\u662f\u53ef\u4ee51:N\u5173\u7cfb<\/p>\n

          \n

          1.3.3 \u8868\u7a7a\u95f4\u7c7b\u578b<\/span><\/h3>\n

          \u3000\u30001\u3001\u5171\u4eab\u8868\u7a7a\u95f4\uff1aibdata1~ibdataN,\u4e00\u822c\u662f2-3\u4e2a<\/p>\n

          \u3000\u30002\u3001\u72ec\u7acb\u8868\u7a7a\u95f4\uff1a\u5b58\u653e\u5728\u6307\u5b9a\u5e93\u76ee\u5f55\u4e0b\uff0c\u4f8b\u5982data\/world\/\u76ee\u5f55\u4e0b\u7684city.ibd<\/p>\n

          \u3000\u3000\u3000\u3000\u8868\u7a7a\u95f4\u4f4d\u7f6e\uff08datadir\uff09\uff1a<\/p>\n

          \u3000\u3000\u3000\u3000data\/\u76ee\u5f55\u4e0b<\/p>\n

          1.3.4 \u7cfb\u7edf\u8868\u7a7a\u95f4\u7684\u5b58\u50a8\u5185\u5bb9<\/span><\/h3>\n

          \u5171\u4eab\u8868\u7a7a\u95f4\uff08\u7269\u7406\u5b58\u50a8\u7ed3\u6784\uff09<\/em><\/i><\/span><\/p>\n

          \u00a0\u00a0\u3000\u3000 ibdata1~N \u901a\u5e38\u88ab\u53eb\u505a\u7cfb\u7edf\u8868\u7a7a\u95f4\uff0c\u662f\u6570\u636e\u521d\u59cb\u5316\u751f\u6210\u7684<\/p>\n

          \u00a0\u00a0\u3000\u3000 \u7cfb\u7edf\u5143\u6570\u636e\uff0c\u57fa\u8868\u6570\u636e\uff0c\u9664\u4e86\u8868\u5185\u5bb9\u6570\u636e\u4e4b\u5916\u7684\u6570\u636e\u3002<\/p>\n

          \u00a0\u00a0 \u3000\u3000tmp \u8868\u7a7a\u95f4\uff08\u4e00\u822c\u5f88\u5c11\u5173\u6ce8\uff09<\/p>\n

          \u00a0\u00a0 \u3000\u3000undo\u65e5\u5fd7 \uff1a\u6570\u636e–\u56de\u6eda\u6570\u636e\uff08\u56de\u6eda\u65e5\u5fd7\u4f7f\u7528\uff09<\/p>\n

          \u00a0\u00a0\u3000\u3000 redo\u65e5\u5fd7 \uff1aib_logfile0~N \u5b58\u653e\u7cfb\u7edf\u7684innodb\u8868\u7684\u4e00\u4e9b\u91cd\u505a\u65e5\u5fd7\u3002<\/p>\n

          \u00a0\u00a0\u3000\u3000 \u8bf4\u660e\uff1aundo\u65e5\u5fd7\u9ed8\u8ba4\u5b9e\u5728ibdata\u4e2d\u7684\uff0c\u57285.6\u4ee5\u540e\u662f\u53ef\u4ee5\u5355\u72ec\u5b9a\u4e49\u7684\u3002<\/p>\n

          \u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u3000\u3000 tmp \u8868\u7a7a\u95f4\u57285.7<\/span><\/em><\/i>\u7248\u672c\u4e4b\u540e<\/span><\/em><\/i>\u88ab\u79fb\u51fa\u4e86ibdata1\uff0c\u53d8\u4e3aibtmp1<\/p>\n

          \u00a0\u00a0\u00a0\u00a0\u00a0 \u3000\u3000\u00a0 \u57285.5<\/span><\/em><\/i>\u7248\u672c\u4e4b\u524d<\/span><\/em><\/i>\uff0c\u6240\u6709\u7684\u5e94\u7528\u6570\u636e\u4e5f\u90fd\u9ed8\u8ba4\u5b58\u653e\u5230\u4e86ibdata\u4e2d\u3002<\/p>\n

          \u72ec\u7acb\u8868\u7a7a\u95f4(<\/em><\/i>\u4e00\u4e2a\u5b58\u50a8\u5f15\u64ce\u7684\u529f\u80fd)<\/em><\/i><\/span><\/p>\n

          \u00a0\u00a0\u3000\u3000 \u57285.6\u4e4b\u540e\uff0c\u9ed8\u8ba4\u7684\u60c5\u51b5\u4e0b\u4f1a\u5355\u8868\u5355\u72ec\u5b58\u50a8\u5230\u72ec\u7acb\u8868\u7a7a\u95f4\u6587\u4ef6<\/p>\n

          \u3000\u3000\u3000\u9664\u4e86\u7cfb\u7edf\u8868\u7a7a\u95f4\u4e4b\u5916\uff0cInnoDB \u8fd8\u5728\u6570\u636e\u5e93\u76ee\u5f55\u4e2d\u521b\u5efa\u53e6\u5916\u7684\u8868\u7a7a\u95f4\uff0c\u7528\u4e8e\u6bcf\u4e2a InnoDB \u8868\u7684 .ibd \u6587\u4ef6\u3002<\/p>\n

          \u3000\u3000\u00a0 \u00a0InnoDB \u521b\u5efa\u7684\u6bcf\u4e2a\u65b0\u8868\u5728\u6570\u636e\u5e93\u76ee\u5f55\u4e2d\u8bbe\u7f6e\u4e00\u4e2a .ibd \u6587\u4ef6\u6765\u642d\u914d\u8868\u7684.frm \u6587\u4ef6\u3002<\/p>\n

          \u3000\u3000\u3000\u53ef\u4ee5\u4f7f\u7528 innodb_file_per_table \u9009\u9879\u63a7\u5236\u6b64\u8bbe\u7f6e\uff0c\u66f4\u6539\u8be5\u8bbe\u7f6e\u4ec5\u4f1a\u66f4\u6539\u5df2\u521b\u5efa\u7684\u65b0\u8868\u7684\u9ed8\u8ba4\u503c\u3002\u3002<\/p>\n

          \n

          1.3.5 \u8bbe\u7f6e\u5171\u4eab\u8868\u7a7a\u95f4<\/span><\/h3>\n

          \u67e5\u770b\u5f53\u524d\u7684\u5171\u4eab\u8868\u7a7a\u95f4\u8bbe\u7f6e<\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>innodb_data_file_path<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>———————+————————+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>———————+————————+<\/span> |<\/span> innodb_data_file_path |<\/span> ibdata1:12M:autoextend |<\/span> +<\/span>—<\/span>———————+————————+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          \u3000\u8bbe\u7f6e\u5171\u4eab\u8868\u7a7a\u95f4\uff1a<\/p>\n

          \u3000\u3000\u4e00\u822c\u662f\u5728\u521d\u59cb\u642d\u5efa\u73af\u5883\u7684\u65f6\u5019\u5c31\u914d\u7f6e\u53f7\uff0c\u9884\u8bbe\u503c\u4e00\u822c\u4e3a1G\uff1b\u4e14\u6700\u540e\u4e00\u4e2a\u4e3a\u81ea\u52a8\u6269\u5c55\u3002<\/p>\n

          [<\/span>root@db02 world<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf <\/span>[<\/span>mysqld<\/span>]<\/span> innodb_data_file_path<\/span>=<\/span>ibdata1:76M;ibdata2:100M:autoextend<\/p>\n

          \u91cd\u542f\u670d\u52a1\u67e5\u770b\u5f53\u524d\u7684\u5171\u4eab\u8868\u7a7a\u95f4\u8bbe\u7f6e<\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>innodb_data_file_path<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>———————+————————————-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>———————+————————————-+<\/span> |<\/span> innodb_data_file_path |<\/span> ibdata1:76M;ibdata2:100M:autoextend |<\/span> +<\/span>—<\/span>———————+————————————-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          1.3.6 \u8bbe\u7f6e\u72ec\u7acb\u8868\u7a7a\u95f4<\/span><\/h3>\n

          \u3000\u3000\u3000\u72ec\u7acb\u8868\u7a7a\u95f4\u57285.6\u7248\u672c\u662f\u9ed8\u8ba4\u5f00\u542f\u7684\u3002<\/p>\n

          \u3000\u3000\u3000\u72ec\u7acb\u8868\u7a7a\u95f4\u6ce8\u610f\u4e8b\u9879\uff1a<\/span>\u4e0d\u5f00\u8d77\u72ec\u7acb\u8868\u7a7a\u95f4\uff0c\u5171\u4eab\u8868\u7a7a\u95f4\u4f1a\u5360\u7528\u5f88\u5927<\/span><\/strong><\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>%per_table%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>———————+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>———————+——-+<\/span> |<\/span> innodb_file_per_table |<\/span> ON<\/span> |<\/span> +<\/span>—<\/span>———————+——-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          \u00a0\u00a0 \u5728\u53c2\u6570\u6587\u4ef6\/etc\/my.cnf\u00a0 \u53ef\u4ee5\u63a7\u5236\u72ec\u7acb\u8868\u7a7a\u95f4<\/p>\n

          \u5173\u95ed\u72ec\u7acb\u8868\u7a7a\u95f4 \uff080\u662f\u5173\u95ed\uff0c1\u662f\u5f00\u542f\uff09<\/p>\n

          [<\/span>root@db02 clsn<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf <\/span>[<\/span>mysqld<\/span>]<\/span> innodb_file_per_table<\/span>=<\/span>0<\/span><\/b><\/p>\n

          \u67e5\u770b\u72ec\u7acb\u8868\u7a7a\u95f4\u914d\u7f6e<\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>%per_table%<\/span>\\’<\/span> ; <\/span>+<\/span>—<\/span>———————+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>———————+——-+<\/span> |<\/span> innodb_file_per_table |<\/span> OFF<\/span> |<\/span> +<\/span>—<\/span>———————+——-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          \u5c0f\u7ed3:<\/p>\n

          innodb_file_per_table=<\/span>0<\/span><\/b> \u5173\u95ed\u72ec\u7acb\u8868\u7a7a\u95f4 innodb_file_per_table<\/span>=<\/span>1<\/span><\/b> \u5f00\u542f\u72ec\u7acb\u8868\u7a7a\u95f4\uff0c\u5355\u8868\u5355\u5b58\u50a8<\/p>\n

          1.4 MySQL\u4e2d\u7684\u4e8b\u52a1<\/span><\/h2>\n

          \u3000\u3000\u4e00\u7ec4\u6570\u636e\u64cd\u4f5c\u6267\u884c\u6b65\u9aa4\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u88ab\u89c6\u4e3a\u4e00\u4e2a\u5de5\u4f5c\u5355\u5143<\/p>\n

          \u00a0\u00a0\u3000\u3000\u3000\u3000 \u7528\u4e8e\u5bf9\u591a\u4e2a\u8bed\u53e5\u8fdb\u884c\u5206\u7ec4\uff0c\u53ef\u4ee5\u5728\u591a\u4e2a\u5ba2\u6237\u673a\u5e76\u53d1\u8bbf\u95ee\u540c\u4e00\u4e2a\u8868\u4e2d\u7684\u6570\u636e\u65f6\u4f7f\u7528\u3002<\/p>\n

          \u3000\u3000\u6240\u6709\u6b65\u9aa4\u90fd\u6210\u529f\u6216\u90fd\u5931\u8d25<\/p>\n

          \u00a0\u00a0\u3000\u3000\u3000\u3000 \u5982\u679c\u6240\u6709\u6b65\u9aa4\u6b63\u5e38\uff0c\u5219\u6267\u884c\uff0c\u5982\u679c\u6b65\u9aa4\u51fa\u73b0\u9519\u8bef\u6216\u4e0d\u5b8c\u6574\uff0c\u5219\u53d6\u6d88\u3002<\/p>\n

          \u7b80\u5355\u6765\u8bf4\u4e8b\u52a1\u5c31\u662f\uff1a\u4fdd\u8bc1\u5de5\u4f5c\u5355\u5143\u4e2d\u7684\u8bed\u53e5\u540c\u65f6\u6210\u529f\u6216\u540c\u65f6\u5931\u8d25\u3002<\/span><\/em><\/i><\/p>\n

          \n

          \u4e8b\u52a1\u5904\u7406\u6d41\u7a0b\u793a\u610f\u56fe<\/p>\n

          1.4.1 \u4e8b\u52a1\u662f\u4ec0\u4e48<\/span><\/h3>\n

          \u3000\u3000\u4e0e\u5176\u7ed9\u4e8b\u52a1\u5b9a\u4e49\uff0c\u4e0d\u5982\u8bf4\u4e00\u8bf4\u4e8b\u52a1\u7684\u7279\u6027\u3002\u4f17\u6240\u5468\u77e5\uff0c\u4e8b\u52a1\u9700\u8981\u6ee1\u8db3ACID<\/strong>\u56db\u4e2a\u7279\u6027\u3002<\/p>\n

          A(atomicity) \u539f\u5b50\u6027\u3002<\/span><\/p>\n

          \u3000\u3000\u3000\u4e00\u4e2a\u4e8b\u52a1\u7684\u6267\u884c\u88ab\u89c6\u4e3a\u4e00\u4e2a\u4e0d\u53ef\u5206\u5272\u7684\u6700\u5c0f\u5355\u5143\u3002\u4e8b\u52a1\u91cc\u9762\u7684\u64cd\u4f5c\uff0c\u8981\u4e48\u5168\u90e8\u6210\u529f\u6267\u884c\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\u56de\u6eda\uff0c\u4e0d\u53ef\u4ee5\u53ea\u6267\u884c\u5176\u4e2d\u7684\u4e00\u90e8\u5206\u3002<\/p>\n

          \u6240\u6709\u8bed\u53e5\u4f5c\u4e3a\u4e00\u4e2a\u5355\u5143\u5168\u90e8\u6210\u529f\u6267\u884c\u6216\u5168\u90e8\u53d6\u6d88\u3002 updata t1 <\/span>set<\/span> money<\/span>=<\/span>10000<\/span><\/b>–<\/span>17<\/span><\/b> where<\/span> id=<\/span>wxid1 updata t1 <\/span>set<\/span> money<\/span>=<\/span>10000<\/span><\/b>+<\/span>17<\/span><\/b> where<\/span> id=<\/span>wxid2<\/p>\n

          C(consistency) \u4e00\u81f4\u6027<\/span>\u3002<\/p>\n

          \u3000\u3000\u4e00\u4e2a\u4e8b\u52a1\u7684\u6267\u884c\u4e0d\u5e94\u8be5\u7834\u574f\u6570\u636e\u5e93\u7684\u5b8c\u6574\u6027\u7ea6\u675f\u3002\u5982\u679c\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\u7b2c2\u4e2a\u64cd\u4f5c\u6267\u884c\u540e\u7cfb\u7edf\u5d29\u6e83\uff0c\u4fdd\u8bc1A\u548cB\u7684\u91d1\u94b1\u603b\u8ba1\u662f\u4e0d\u4f1a\u53d8\u7684\u3002<\/p>\n

          \u5982\u679c\u6570\u636e\u5e93\u5728\u4e8b\u52a1\u5f00\u59cb\u65f6\u5904\u4e8e\u4e00\u81f4\u72b6\u6001\uff0c\u5219\u5728\u6267\u884c\u8be5\u4e8b\u52a1\u671f\u95f4\u5c06\u4fdd\u7559\u4e00\u81f4\u72b6\u6001\u3002 updata t1 <\/span>set<\/span> money<\/span>=<\/span>10000<\/span><\/b>–<\/span>17<\/span><\/b> where<\/span> id=<\/span>wxid1 updata t1 <\/span>set<\/span> money<\/span>=<\/span>10000<\/span><\/b>+<\/span>17<\/span><\/b> where<\/span> id=<\/span>wxid2 \u5728\u4ee5\u4e0a\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u53bb\u67e5\u81ea\u5df1\u8d26\u6237\u8fd8\u662f10000<\/span><\/p>\n

          I(isolation) \u9694\u79bb\u6027\u3002<\/span><\/p>\n

          \u3000\u3000\u901a\u5e38\u6765\u8bf4\uff0c\u4e8b\u52a1\u4e4b\u95f4\u7684\u884c\u4e3a\u4e0d\u5e94\u8be5\u4e92\u76f8\u5f71\u54cd\u3002\u7136\u800c\u5b9e\u9645\u60c5\u51b5\u4e2d\uff0c\u4e8b\u52a1\u76f8\u4e92\u5f71\u54cd\u7684\u7a0b\u5ea6\u53d7\u5230\u9694\u79bb\u7ea7\u522b\u7684\u5f71\u54cd\u3002\u6587\u7ae0\u540e\u9762\u4f1a\u8be6\u8ff0\u3002<\/p>\n

          \u3000\u3000\u4e8b\u52a1\u4e4b\u95f4\u4e0d\u76f8\u4e92\u5f71\u54cd\u3002\u5728\u505a\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u5176\u4ed6\u4eba\u5bf9\u8fd9\u4e24\u4e2a\u8d26\u6237\u505a\u4efb\u4f55\u64cd\u4f5c\uff0c\u5728\u4e0d\u540c\u7684\u9694\u79bb\u6761\u4ef6\u4e0b\uff0c\u53ef\u80fd\u4e00\u81f4\u6027\u4fdd\u8bc1\u53c8\u4e0d\u4e00\u6837<\/p>\n

          \u9694\u79bb\u7ea7\u522b<\/em><\/i><\/p>\n

          \u9694\u79bb\u7ea7\u522b\u4f1a\u5f71\u54cd\u5230\u4e00\u81f4\u6027\u3002 <\/span>read<\/span>–<\/span>uncommit X <\/span>read<\/span>–<\/span>commit<\/span> \u53ef\u80fd\u4f1a\u7528\u7684\u4e00\u79cd\u7ea7\u522b <\/span>repeatable<\/span>–<\/span>read<\/span> \u9ed8\u8ba4\u7684\u7ea7\u522b\uff0c\u548coracle\u4e00\u6837\u7684 <\/span>SERIALIZABLE<\/span> \u4e25\u683c\u7684\u9ed8\u8ba4\uff0c\u4e00\u822c\u4e0d\u4f1a\u7528<\/p>\n

          \u3000\u3000\u6b64\u89c4\u5219\u9664\u4e86\u53d7\u9694\u79bb\u7ea7\u522b\u63a7\u5236\uff0c\u8fd8\u53d7\u9501\u63a7\u5236\uff0c\u53ef\u4ee5\u8054\u60f3\u4e00\u4e0bNFS\u7684\u5b9e\u73b0<\/p>\n

          D(durability) \u6301\u4e45\u6027\u3002<\/span><\/p>\n

          \u3000\u3000\u4e8b\u52a1\u63d0\u4ea4\u4e4b\u540e\uff0c\u9700\u8981\u5c06\u63d0\u4ea4\u7684\u4e8b\u52a1\u6301\u4e45\u5316\u5230\u78c1\u76d8\u3002\u5373\u4f7f\u7cfb\u7edf\u5d29\u6e83\uff0c\u63d0\u4ea4\u7684\u6570\u636e\u4e5f\u4e0d\u5e94\u8be5\u4e22\u5931\u3002<\/p>\n

          \u3000\u4fdd\u8bc1\u6570\u636e\u843d\u5730\uff0c\u624d\u7b97\u4e8b\u52a1\u771f\u6b63\u5b89\u5168<\/p>\n

          1.4.2 \u4e8b\u52a1\u7684\u63a7\u5236\u8bed\u53e5<\/span><\/h3>\n

          \u5e38\u7528\u7684\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\uff1a<\/p>\n

          START TRANSACTION<\/span>\uff08\u6216 BEGIN<\/span>\uff09\uff1a\u663e\u5f0f\u5f00\u59cb\u4e00\u4e2a\u65b0\u4e8b\u52a1 <\/span>COMMIT<\/span>\uff1a\u6c38\u4e45\u8bb0\u5f55\u5f53\u524d\u4e8b\u52a1\u6240\u505a\u7684\u66f4\u6539(\u4e8b\u52a1\u6210\u529f\u7ed3\u675f) <\/span>ROLLBACK<\/span>\uff1a\u53d6\u6d88\u5f53\u524d\u4e8b\u52a1\u6240\u505a\u7684\u66f4\u6539(\u4e8b\u52a1\u5931\u8d25\u7ed3\u675f)<\/p>\n

          \u9700\u8981\u77e5\u9053\u7684\u4e8b\u52a1\u63a7\u5236\u8bed\u53e5\uff1a<\/p>\n

          SAVEPOINT\uff1a\u5206\u914d\u4e8b\u52a1\u8fc7\u7a0b\u4e2d\u7684\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u4ee5\u4f9b\u5c06\u6765\u5f15\u7528 <\/span>ROLLBACK<\/span> TO<\/span> SAVEPOINT\uff1a\u53d6\u6d88\u5728 savepoint \u4e4b\u540e\u6267\u884c\u7684\u66f4\u6539 RELEASE SAVEPOINT\uff1a\u5220\u9664 savepoint \u6807\u8bc6\u7b26 <\/span>SET<\/span> AUTOCOMMIT\uff1a\u4e3a\u5f53\u524d\u8fde\u63a5\u7981\u7528\u6216\u542f\u7528\u9ed8\u8ba4 autocommit\u6a21\u5f0f<\/p>\n

          1.4.3 autocommit\u53c2\u6570<\/span><\/h3>\n

          \u3000\u3000\u5728MySQL5.5\u5f00\u59cb\uff0c\u5f00\u542f\u4e8b\u52a1\u65f6\u4e0d\u518d\u9700\u8981begin\u6216\u8005start transaction\u8bed\u53e5\u3002\u5e76\u4e14\uff0c\u9ed8\u8ba4\u662f\u5f00\u542f\u4e86Autocommit\u6a21\u5f0f\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u4e8b\u52a1\u9690\u5f0f\u63d0\u4ea4\u6bcf\u4e2a\u8bed\u53e5\u3002<\/p>\n

          \u3000\u3000\u5728\u6709\u4e9b\u4e1a\u52a1\u7e41\u5fd9\u4f01\u4e1a\u573a\u666f\u4e0b\uff0c\u8fd9\u79cd\u914d\u7f6e\u53ef\u80fd\u4f1a\u5bf9\u6027\u80fd\u4ea7\u751f\u5f88\u5927\u5f71\u54cd\uff0c\u4f46\u5bf9\u4e8e\u5b89\u5168\u6027\u4e0a\u6709\u5f88\u5927\u63d0\u9ad8\u3002\u5c06\u6765\uff0c\u6211\u4eec\u9700\u8981\u53bb\u6743\u8861\u6211\u4eec\u7684\u4e1a\u52a1\u9700\u6c42\u53bb\u8c03\u6574\u662f\u5426\u81ea\u52a8\u63d0\u4ea4\u3002<\/p>\n

          \u3000\u3000\u6ce8\u610f\uff1a\u5728\u751f\u4ea7\u4e2d\uff0c\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u662f\u5426\u53ef\u5f00\u542f\uff0c\u4e00\u822c\u94f6\u884c\u7c7b\u4e1a\u52a1\u4f1a\u9009\u62e9\u5173\u95ed\u3002<\/strong><\/p>\n

          \u67e5\u770b\u5f53\u524dautocommit\u72b6\u6001\uff1a<\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>%autoc%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>————-+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————-+——-+<\/span> |<\/span> autocommit |<\/span> ON<\/span> |<\/span> +<\/span>—<\/span>————-+——-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          \u4fee\u6539\u914d\u7f6e\u6587\u4ef6\uff0c\u5e76\u91cd\u542f<\/p>\n

          [<\/span>root@db02 world<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf <\/span>[<\/span>mysqld<\/span>]<\/span> autocommit<\/span>=<\/span>0<\/span><\/b><\/p>\n

          \u518d\u6b21\u67e5\u770bautocommit\u72b6\u6001<\/p>\n

          mysql><\/span> show variables like<\/span> \\’<\/span>%autoc%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>————-+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————-+——-+<\/span> |<\/span> autocommit |<\/span> OFF<\/span> |<\/span> +<\/span>—<\/span>————-+——-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec) mysql<\/span>><\/span> select<\/span> @@autocommit<\/span><\/b>; <\/span>+<\/span>—<\/span>————+<\/span> |<\/span> @@autocommit<\/span><\/b> |<\/span> +<\/span>—<\/span>————+<\/span> |<\/span> 0<\/span><\/b> |<\/span> +<\/span>—<\/span>————+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

          \u3000\u3000\u8bf4\u660e\uff1a\u00a0<\/strong>autocommit\u8bbe\u7f6e\u4e3a\u5f00\u542f\u7684\u5bf9\u6bd4<\/p>\n

          \u00a0\u00a0\u00a0\u3000\u3000\u00a0\u4f18\u70b9\uff1a<\/span>\u6570\u636e\u5b89\u5168\u6027\u597d\uff0c\u6bcf\u6b21\u4fee\u6539\u90fd\u4f1a\u843d\u5730<\/p>\n

          \u00a0\u00a0\u3000\u3000\u00a0\u00a0\u7f3a\u70b9\uff1a<\/span>\u4e0d\u80fd\u8fdb\u884c\u94f6\u884c\u7c7b\u7684\u4ea4\u6613\u4e8b\u52a1\u3001\u4ea7\u751f\u5927\u91cf\u5c0f\u7684IO<\/p>\n

          1.4.4 \u5bfc\u81f4\u63d0\u4ea4\u7684\u975e\u4e8b\u52a1\u8bed\u53e5\uff1a<\/span><\/h3>\n

          DDL\u8bed\u53e5\uff1a \uff08ALTER<\/span>\u3001CREATE<\/span> \u548c DROP<\/span>\uff09 DCL\u8bed\u53e5\uff1a \uff08<\/span>GRANT<\/span>\u3001REVOKE<\/span> \u548c SET<\/span> PASSWORD\uff09 \u9501\u5b9a\u8bed\u53e5\uff1a\uff08LOCK TABLES \u548c UNLOCK TABLES\uff09<\/span><\/p>\n

          \u5bfc\u81f4\u9690\u5f0f\u63d0\u4ea4\u7684\u8bed\u53e5\u793a\u4f8b\uff1a<\/p>\n

          TRUNCATE<\/span> TABLE<\/span> LOAD<\/span> DATA INFILE <\/span>SELECT<\/span> FOR<\/span> UPDATE<\/span><\/p>\n

          \u7528\u4e8e\u9690\u5f0f\u63d0\u4ea4\u7684 SQL \u8bed\u53e5\uff1a<\/p>\n

          START TRANSACTION<\/span> SET<\/span> AUTOCOMMIT =<\/span> 1<\/span><\/b><\/p>\n

          1.5 redo\u4e0eundo<\/span><\/h2>\n

          \n

          1.5.1 \u4e8b\u52a1\u65e5\u5fd7undo<\/span><\/h3>\n

          undo\u539f\u7406\uff1a<\/span><\/p>\n

          \u3000\u3000Undo Log\u7684\u539f\u7406\u5f88\u7b80\u5355\uff0c\u4e3a\u4e86\u6ee1\u8db3\u4e8b\u52a1\u7684\u539f\u5b50\u6027\uff0c\u5728\u64cd\u4f5c\u4efb\u4f55\u6570\u636e\u4e4b\u524d\uff0c\u9996\u5148\u5c06\u6570\u636e\u5907\u4efd\u5230\u4e00\u4e2a\u5730\u65b9\uff08\u8fd9\u4e2a\u5b58\u50a8\u6570\u636e\u5907\u4efd\u7684\u5730\u65b9\u79f0\u4e3aUndo Log\uff09\u3002\u7136\u540e\u8fdb\u884c\u6570\u636e\u7684\u4fee\u6539\u3002<\/p>\n

          \u3000\u3000\u5982\u679c\u51fa\u73b0\u4e86\u9519\u8bef\u6216\u8005\u7528\u6237\u6267\u884c\u4e86ROLLBACK\u8bed\u53e5\uff0c\u7cfb\u7edf\u53ef\u4ee5\u5229\u7528Undo Log\u4e2d\u7684\u5907\u4efd\u5c06\u6570\u636e\u6062\u590d\u5230\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u7684\u72b6\u6001\u3002<\/p>\n

          \u9664\u4e86\u53ef\u4ee5\u4fdd\u8bc1\u4e8b\u52a1\u7684\u539f\u5b50\u6027\uff0cUndo Log\u4e5f\u53ef\u4ee5\u7528\u6765\u8f85\u52a9\u5b8c\u6210\u4e8b\u52a1\u7684\u6301\u4e45\u5316\u3002<\/p>\n

          \n

          undo<\/span><\/strong>\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

          \u3000\u3000undo,\u987e\u540d\u601d\u4e49\u201c\u56de\u6eda\u65e5\u5fd7\u201d\uff0c\u662f\u4e8b\u52a1\u65e5\u5fd7\u7684\u4e00\u79cd\u3002<\/p>\n

          \u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

          \u3000\u3000\u5728\u4e8b\u52a1ACID\u8fc7\u7a0b\u4e2d\uff0c\u5b9e\u73b0\u7684\u662f\u201cA\u201c\u539f\u5b50\u6027\u7684\u4f5c\u7528\u3002<\/p>\n

          \u7528Undo Log<\/em><\/i>\u5b9e\u73b0\u539f\u5b50\u6027\u548c\u6301\u4e45\u5316\u7684\u4e8b\u52a1\u7684\u7b80\u5316\u8fc7\u7a0b<\/em><\/i><\/span><\/p>\n

          \u5047\u8bbe\u6709A\u3001B\u4e24\u4e2a\u6570\u636e\uff0c\u503c\u5206\u522b\u4e3a1,2<\/span><\/b>\u3002 A.\u4e8b\u52a1\u5f00\u59cb. B.\u8bb0\u5f55A<\/span>=<\/span>1\u5230undo log<\/span>. C.\u4fee\u6539A<\/span>=<\/span>3<\/span><\/b>. D.\u8bb0\u5f55B<\/span>=<\/span>2\u5230undo log<\/span>. E.\u4fee\u6539B<\/span>=<\/span>4<\/span><\/b>. F.\u5c06undo log\u5199\u5230\u78c1\u76d8\u3002 G.\u5c06\u6570\u636e\u5199\u5230\u78c1\u76d8\u3002 H.\u4e8b\u52a1\u63d0\u4ea4<\/span><\/p>\n

          \u00a0 \u8fd9\u91cc\u6709\u4e00\u4e2a\u9690\u542b\u7684\u524d\u63d0\u6761\u4ef6\uff1a\u2018\u6570\u636e\u90fd\u662f\u5148\u8bfb\u5230\u5185\u5b58\u4e2d\uff0c\u7136\u540e\u4fee\u6539\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u6700\u540e\u5c06\u6570\u636e\u5199\u56de\u78c1\u76d8\u4e4b\u6240\u4ee5\u80fd\u540c\u65f6\u4fdd\u8bc1\u539f\u5b50\u6027\u548c\u6301\u4e45\u5316\uff0c\u662f\u56e0\u4e3a\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n

            \n
          1. \u66f4\u65b0\u6570\u636e\u524d\u8bb0\u5f55Undo log<\/span>\u3002 B. \u4e3a\u4e86\u4fdd\u8bc1\u6301\u4e45\u6027\uff0c\u5fc5\u987b\u5c06\u6570\u636e\u5728\u4e8b\u52a1\u63d0\u4ea4\u524d\u5199\u5230\u78c1\u76d8\u3002\u53ea\u8981\u4e8b\u52a1\u6210\u529f\u63d0\u4ea4\uff0c\u6570\u636e\u5fc5\u7136\u5df2\u7ecf\u6301\u4e45\u5316\u3002 C. Undo log\u5fc5\u987b\u5148\u4e8e\u6570\u636e\u6301\u4e45\u5316\u5230\u78c1\u76d8\u3002\u5982\u679c\u5728G,H\u4e4b\u95f4\u7cfb\u7edf\u5d29\u6e83\uff0cundo log\u662f\u5b8c\u6574\u7684\uff0c\u53ef\u4ee5\u7528\u6765\u56de\u6eda\u4e8b\u52a1\u3002 D. \u5982\u679c\u5728A<\/span>–<\/span>F\u4e4b\u95f4\u7cfb\u7edf\u5d29\u6e83,\u56e0\u4e3a\u6570\u636e\u6ca1\u6709\u6301\u4e45\u5316\u5230\u78c1\u76d8\u3002\u6240\u4ee5\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u8fd8\u662f\u4fdd\u6301\u5728\u4e8b\u52a1\u5f00\u59cb\u524d\u7684\u72b6\u6001\u3002<\/li>\n<\/ol>\n

            \u7f3a\u9677\uff1a<\/em><\/i><\/strong><\/span><\/p>\n

            \u3000\u3000\u6bcf\u4e2a\u4e8b\u52a1\u63d0\u4ea4\u524d\u5c06\u6570\u636e\u548cUndo Log\u5199\u5165\u78c1\u76d8\uff0c\u8fd9\u6837\u4f1a\u5bfc\u81f4\u5927\u91cf\u7684\u78c1\u76d8IO\uff0c\u56e0\u6b64\u6027\u80fd\u5f88\u4f4e\u3002\u5982\u679c\u80fd\u591f\u5c06\u6570\u636e\u7f13\u5b58\u4e00\u6bb5\u65f6\u95f4\uff0c\u5c31\u80fd\u51cf\u5c11IO\u63d0\u9ad8\u6027\u80fd\u3002\u4f46\u662f\u8fd9\u6837\u5c31\u4f1a\u4e27\u5931\u4e8b\u52a1\u7684\u6301\u4e45\u6027\u3002<\/p>\n

            \u3000\u3000\u56e0\u6b64\u5f15\u5165\u4e86\u53e6\u5916\u4e00\u79cd\u673a\u5236\u6765\u5b9e\u73b0\u6301\u4e45\u5316\uff0c\u5373Redo Log.<\/p>\n

            1.5.2 \u4e8b\u52a1\u65e5\u5fd7redo<\/span><\/h3>\n

            redo<\/span><\/em><\/i><\/strong>\u539f\u7406\uff1a<\/span><\/em><\/i><\/strong><\/p>\n

            \u3000\u3000\u548cUndo Log\u76f8\u53cd\uff0cRedo Log\u8bb0\u5f55\u7684\u662f\u65b0\u6570\u636e\u7684\u5907\u4efd\u3002\u5728\u4e8b\u52a1\u63d0\u4ea4\u524d\uff0c\u53ea\u8981\u5c06Redo Log\u6301\u4e45\u5316\u5373\u53ef\uff0c\u4e0d\u9700\u8981\u5c06\u6570\u636e\u6301\u4e45\u5316\u3002\u5f53\u7cfb\u7edf\u5d29\u6e83\u65f6\uff0c\u867d\u7136\u6570\u636e\u6ca1\u6709\u6301\u4e45\u5316\uff0c\u4f46\u662fRedo Log\u5df2\u7ecf\u6301\u4e45\u5316\u3002<\/p>\n

            \u3000\u3000\u7cfb\u7edf\u53ef\u4ee5\u6839\u636eRedo Log\u7684\u5185\u5bb9\uff0c\u5c06\u6240\u6709\u6570\u636e\u6062\u590d\u5230\u6700\u65b0\u7684\u72b6\u6001\u3002<\/p>\n

            \n

            \n

            Redo<\/span><\/strong>\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

            \u3000\u3000redo,\u987e\u540d\u601d\u4e49\u201c\u91cd\u505a\u65e5\u5fd7\u201d\uff0c\u662f\u4e8b\u52a1\u65e5\u5fd7\u7684\u4e00\u79cd\u3002<\/p>\n

            \u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/span><\/strong><\/p>\n

            \u3000\u3000\u5728\u4e8b\u52a1ACID\u8fc7\u7a0b\u4e2d\uff0c\u5b9e\u73b0\u7684\u662f\u201cD\u201d\u6301\u4e45\u5316\u7684\u4f5c\u7528\u3002<\/p>\n

            Undo + Redo<\/span><\/em><\/i>\u4e8b\u52a1\u7684\u7b80\u5316\u8fc7\u7a0b<\/span><\/em><\/i><\/p>\n

            \u5047\u8bbe\u6709A\u3001B\u4e24\u4e2a\u6570\u636e\uff0c\u503c\u5206\u522b\u4e3a1,2<\/span><\/b>. A.\u4e8b\u52a1\u5f00\u59cb. B.\u8bb0\u5f55A<\/span>=<\/span>1\u5230undo log<\/span>. C.\u4fee\u6539A<\/span>=<\/span>3<\/span><\/b>. D.\u8bb0\u5f55A<\/span>=<\/span>3\u5230redo log<\/span>. E.\u8bb0\u5f55B<\/span>=<\/span>2\u5230undo log<\/span>. F.\u4fee\u6539B<\/span>=<\/span>4<\/span><\/b>. G.\u8bb0\u5f55B<\/span>=<\/span>4\u5230redo log<\/span>. H.\u5c06redo log\u5199\u5165\u78c1\u76d8\u3002 I.\u4e8b\u52a1\u63d0\u4ea4<\/span><\/p>\n

            Undo + Redo<\/span><\/em><\/i>\u4e8b\u52a1\u7684\u7279\u70b9<\/span><\/em><\/i><\/p>\n

              \n
            1. \u4e3a\u4e86\u4fdd\u8bc1\u6301\u4e45\u6027\uff0c\u5fc5\u987b\u5728\u4e8b\u52a1\u63d0\u4ea4\u524d\u5c06Redo Log\u6301\u4e45\u5316\u3002 B. \u6570\u636e\u4e0d\u9700\u8981\u5728\u4e8b\u52a1\u63d0\u4ea4\u524d\u5199\u5165\u78c1\u76d8\uff0c\u800c\u662f\u7f13\u5b58\u5728\u5185\u5b58\u4e2d\u3002 C. Redo <\/span>Log<\/span> \u4fdd\u8bc1\u4e8b\u52a1\u7684\u6301\u4e45\u6027\u3002 D. Undo <\/span>Log<\/span> \u4fdd\u8bc1\u4e8b\u52a1\u7684\u539f\u5b50\u6027\u3002 E. \u6709\u4e00\u4e2a\u9690\u542b\u7684\u7279\u70b9\uff0c\u6570\u636e\u5fc5\u987b\u8981\u665a\u4e8eredo log\u5199\u5165\u6301\u4e45\u5b58\u50a8\u3002<\/span><\/li>\n<\/ol>\n

              redo\u662f\u5426\u6301\u4e45\u5316\u5230\u78c1\u76d8\u53c2\u6570<\/span><\/p>\n

              innodb_flush_log_at_trx_commit=<\/span>1<\/span><\/b>\/<\/span>0<\/span><\/b>\/<\/span>2<\/span><\/b><\/p>\n

              1.5.3 \u4e8b\u52a1\u4e2d\u7684\u9501<\/span><\/h3>\n

              \u4ec0\u4e48\u662f\u201c\u9501\u201d\uff1f<\/span><\/em><\/i><\/strong><\/p>\n

              \u3000\u3000\u201c\u9501\u201d\u987e\u540d\u601d\u4e49\u5c31\u662f\u9501\u5b9a\u7684\u610f\u601d\u3002<\/p>\n

              \u201c\u9501\u201d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/span><\/em><\/i><\/strong><\/p>\n

              \u3000\u3000\u5728\u4e8b\u52a1ACID\u8fc7\u7a0b\u4e2d\uff0c\u201c\u9501\u201d\u548c\u201c\u9694\u79bb\u7ea7\u522b\u201d\u4e00\u8d77\u6765\u5b9e\u73b0\u201cI\u201d\u9694\u79bb\u6027\u7684\u4f5c\u7528\u3002<\/p>\n

              \n

              \u9501\u7684\u7c92\u5ea6\uff1a<\/span><\/em><\/i><\/strong><\/p>\n

              \u3000\u30001\u3001MyIasm\uff1a\u4f4e\u5e76\u53d1\u9501\u2014\u2014\u8868\u7ea7\u9501<\/p>\n

              \u3000\u30002\u3001Innodb\uff1a\u9ad8\u5e76\u53d1\u9501\u2014\u2014\u884c\u7ea7\u9501<\/p>\n

              \u56db\u79cd\u9694\u79bb\u7ea7\u522b\uff1a<\/span><\/em><\/i><\/strong><\/p>\n

              READ<\/span> UNCOMMITTED<\/span> \u8bb8\u4e8b\u52a1\u67e5\u770b\u5176\u4ed6\u4e8b\u52a1\u6240\u8fdb\u884c\u7684\u672a\u63d0\u4ea4\u66f4\u6539 <\/span>READ<\/span> COMMITTED<\/span> \u5141\u8bb8\u4e8b\u52a1\u67e5\u770b\u5176\u4ed6\u4e8b\u52a1\u6240\u8fdb\u884c\u7684\u5df2\u63d0\u4ea4\u66f4\u6539 <\/span>REPEATABLE<\/span> READ<\/span>******<\/span> \u786e\u4fdd\u6bcf\u4e2a\u4e8b\u52a1\u7684 SELECT<\/span> \u8f93\u51fa\u4e00\u81f4\uff1b InnoDB \u7684\u9ed8\u8ba4\u7ea7\u522b <\/span>SERIALIZABLE<\/span> \u5c06\u4e00\u4e2a\u4e8b\u52a1\u7684\u7ed3\u679c\u4e0e\u5176\u4ed6\u4e8b\u52a1\u5b8c\u5168\u9694\u79bb<\/p>\n

              \u5f00\u9500\u3001\u52a0\u9501\u901f\u5ea6\u3001\u6b7b\u9501\u3001\u7c92\u5ea6\u3001\u5e76\u53d1\u6027\u80fd<\/span><\/em><\/i><\/p>\n

              \u8868\u7ea7\u9501\uff1a\u5f00\u9500\u5c0f\uff0c\u52a0\u9501\u5feb\uff1b\u4e0d\u4f1a\u51fa\u73b0\u6b7b\u9501\uff1b\u9501\u5b9a\u7c92\u5ea6\u5927\uff0c\u53d1\u751f\u9501\u51b2\u7a81\u7684\u6982\u7387\u6700\u9ad8,\u5e76\u53d1\u5ea6\u6700\u4f4e\u3002 \u884c\u7ea7\u9501\uff1a\u5f00\u9500\u5927\uff0c\u52a0\u9501\u6162\uff1b\u4f1a\u51fa\u73b0\u6b7b\u9501\uff1b\u9501\u5b9a\u7c92\u5ea6\u6700\u5c0f\uff0c\u53d1\u751f\u9501\u51b2\u7a81\u7684\u6982\u7387\u6700\u4f4e,\u5e76\u53d1\u5ea6\u4e5f\u6700\u9ad8\u3002 \u9875\u9762\u9501\uff1a\u5f00\u9500\u548c\u52a0\u9501\u65f6\u95f4\u754c\u4e8e\u8868\u9501\u548c\u884c\u9501\u4e4b\u95f4\uff1b\u4f1a\u51fa\u73b0\u6b7b\u9501\uff1b\u9501\u5b9a\u7c92\u5ea6\u754c\u4e8e\u8868\u9501\u548c\u884c\u9501\u4e4b\u95f4\uff0c\u5e76\u53d1\u5ea6\u4e00\u822c\u3002<\/span><\/p>\n

              \u3000\u3000\u4ece\u4e0a\u8ff0\u7279\u70b9\u53ef\u89c1\uff0c\u5f88\u96be\u7b3c\u7edf\u5730\u8bf4\u54ea\u79cd\u9501\u66f4\u597d\uff0c\u53ea\u80fd\u5c31\u5177\u4f53\u5e94\u7528\u7684\u7279\u70b9\u6765\u8bf4\u54ea\u79cd\u9501\u66f4\u5408\u9002\uff01<\/p>\n

              \u3000\u3000\u4ec5\u4ece\u9501\u7684\u89d2\u5ea6\u6765\u8bf4\uff1a\u8868\u7ea7\u9501\u66f4\u9002\u5408\u4e8e\u4ee5\u67e5\u8be2\u4e3a\u4e3b\uff0c\u53ea\u6709\u5c11\u91cf\u6309\u7d22\u5f15\u6761\u4ef6\u66f4\u65b0\u6570\u636e\u7684\u5e94\u7528\uff0c\u5982Web\u5e94\u7528\uff1b\u800c\u884c\u7ea7\u9501\u5219\u66f4\u9002\u5408\u4e8e\u6709\u5927\u91cf\u6309\u7d22\u5f15\u6761\u4ef6\u5e76\u53d1\u66f4\u65b0\u5c11\u91cf\u4e0d\u540c\u6570\u636e\uff0c\u540c\u65f6\u53c8\u6709\u5e76\u53d1\u67e5\u8be2\u7684\u5e94\u7528\uff0c\u5982\u4e00\u4e9b\u5728\u7ebf\u4e8b\u52a1\u5904\u7406\uff08OLTP\uff09\u7cfb\u7edf\u3002<\/p>\n

              1.6 MySQL \u65e5\u5fd7\u7ba1\u7406<\/span><\/h2>\n

              1.6.1 MySQL\u65e5\u5fd7\u7c7b\u578b\u7b80\u4ecb<\/span><\/h3>\n

              \u65e5\u5fd7\u7684\u7c7b\u578b\u7684\u8bf4\u660e\uff1a<\/em><\/i><\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
              \n

              \u65e5\u5fd7\u6587\u4ef6<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u9009\u9879<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u6587\u4ef6\u540d<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u7a0b\u5e8f<\/span><\/strong><\/p>\n

              N\/A<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u8868\u540d\u79f0<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u9519\u8bef<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              –log-error<\/span><\/p>\n<\/td>\n

              		\n

              host_name.err<\/span><\/p>\n<\/td>\n

              		\n

              N\/A<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u5e38\u89c4<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              –general_log<\/span><\/p>\n<\/td>\n

              		\n

              host_name.log<\/span><\/p>\n<\/td>\n

              		\n

              mysqldumpslow<\/span><\/p>\n

              mysqlbinlog<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              general_log<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u6162\u901f\u67e5\u8be2<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              –slow_query_log<\/span><\/p>\n

              –long_query_time<\/span><\/p>\n<\/td>\n

              		\n

              host_name-slow.log<\/span><\/p>\n<\/td>\n

              		\n

              N\/A<\/span><\/p>\n

              \u7a0b\u5e8f<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              slow_log<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u4e8c\u8fdb\u5236<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              –log-bin<\/span><\/p>\n

              –expire-logs-days<\/span><\/p>\n<\/td>\n

              		\n

              host_name-bin.000001<\/span><\/p>\n<\/td>\n

              		\n

              N\/A<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u5ba1\u8ba1<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              –audit_log<\/span><\/p>\n

              –audit_log_file<\/span><\/p>\n<\/td>\n

              		\n

              audit.log<\/span><\/p>\n<\/td>\n

              		\n

              N\/A<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \n

              1.6.2 \u914d\u7f6e\u65b9\u6cd5<\/span><\/h3>\n

              \u72b6\u6001\u9519\u8bef\u65e5\u5fd7\uff1a<\/span><\/h3>\n

              [<\/span>mysqld<\/span>]<\/span> log<\/span>–<\/span>error=\/<\/span>data\/<\/span>mysql\/<\/span>mysql.log<\/span><\/p>\n

              \u67e5\u770b\u914d\u7f6e\u65b9\u5f0f\uff1a<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%log%error%<\/span>\\’<\/span>;<\/p>\n

              \u4f5c\u7528\uff1a<\/span><\/p>\n

              \u3000\u3000\u8bb0\u5f55mysql\u6570\u636e\u5e93\u7684\u4e00\u822c\u72b6\u6001\u4fe1\u606f\u53ca\u62a5\u9519\u4fe1\u606f\uff0c\u662f\u6211\u4eec\u5bf9\u4e8e\u6570<\/p>\n

              \u3000\u636e\u5e93\u5e38\u89c4\u62a5\u9519\u5904\u7406\u7684\u5e38\u7528\u65e5\u5fd7\u3002<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%log%err%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>——————-+———————————-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>——————-+———————————-+<\/span> |<\/span> binlog_error_action |<\/span> IGNORE_ERROR |<\/span> |<\/span> log_error |<\/span> \/<\/span>application\/<\/span>mysql\/<\/span>data\/<\/span>db02.err |<\/span> +<\/span>—<\/span>——————-+———————————-+<\/span> 2<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.6.3 \u4e00\u822c\u67e5\u8be2\u65e5\u5fd7<\/span><\/h3>\n

              \u914d\u7f6e\u65b9\u6cd5:<\/p>\n

              [<\/span>mysqld<\/span>]<\/span> general_log<\/span>=<\/span>on<\/span> general_log_file<\/span>=\/<\/span>data\/<\/span>mysql\/<\/span>server2.log<\/span><\/p>\n

              \u67e5\u770b\u914d\u7f6e\u65b9\u5f0f\uff1a<\/p>\n

              show variables like<\/span> \\’<\/span>%gen%<\/span>\\’<\/span>;<\/p>\n

              \u4f5c\u7528\uff1a<\/p>\n

              \u3000\u3000\u8bb0\u5f55mysql\u6240\u6709\u6267\u884c\u6210\u529f\u7684SQL\u8bed\u53e5\u4fe1\u606f\uff0c\u53ef\u4ee5\u505a\u5ba1\u8ba1\u7528\uff0c\u4f46\u662f\u6211\u4eec\u5f88\u5c11\u5f00\u542f<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%gen%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>—————-+———————————-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>—————-+———————————-+<\/span> |<\/span> general_log |<\/span> OFF<\/span> |<\/span> |<\/span> general_log_file |<\/span> \/<\/span>application\/<\/span>mysql\/<\/span>data\/<\/span>db02.log<\/span> |<\/span> +<\/span>—<\/span>—————-+———————————-+<\/span> 2<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.7 \u4e8c\u8fdb\u5236\u65e5\u5fd7<\/span><\/h2>\n

              \u3000\u3000\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e0d\u4f9d\u8d56\u4e0e\u5b58\u50a8\u5f15\u64ce\u7684\u3002<\/p>\n

              \u3000\u3000\u4f9d\u8d56\u4e8esql\u5c42\uff0c\u8bb0\u5f55\u548csql\u8bed\u53e5\u76f8\u5173\u7684\u4fe1\u606f<\/p>\n

              binlog\u65e5\u5fd7\u4f5c\u7528\uff1a<\/span><\/strong><\/p>\n

              \u00a0\u00a0\u3000\u3000 1\u3001\u63d0\u4f9b\u5907\u4efd\u529f\u80fd<\/p>\n

              \u00a0\u00a0\u3000\u3000 2\u3001\u8fdb\u884c\u4e3b\u4ece\u590d\u5236<\/p>\n

              \u00a0\u3000\u3000\u00a0 3\u3001\u57fa\u4e8e\u65f6\u95f4\u70b9\u7684\u4efb\u610f\u6062\u590d<\/p>\n

              \u3000\u3000\u8bb0\u5f55\u5728sql\u5c42\u5df2\u7ecf\u6267\u884c\u5b8c\u6210\u7684\u8bed\u53e5\uff0c\u5982\u679c\u662f\u4e8b\u52a1\uff0c\u5219\u8bb0\u5f55\u5df2\u5b8c\u6210\u7684\u4e8b\u52a1\u3002<\/p>\n

              \u3000\u3000\u529f\u80fd\u4f5c\u7528\uff1a \u65f6\u95f4\u70b9\u5907\u4efd \u548c \u65f6\u95f4\u70b9\u6062\u590d\u3001 \u4e3b\u4ece<\/p>\n

              \u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u201c\u603b\u95f8\u201d<\/em><\/i><\/strong><\/span><\/p>\n

              \u4f5c\u7528\uff1a<\/p>\n

              1<\/span><\/b>\u3001\u662f\u5426\u5f00\u542f <\/span>2<\/span><\/b>\u3001\u4e8c\u8fdb\u5236\u65e5\u5fd7\u8def\u5f84\/<\/span>data\/<\/span>mysql\/<\/span> 3<\/span><\/b>\u3001\u4e8c\u8fdb\u5236\u65e5\u5fd7\u6587\u4ef6\u540d\u524d\u7f00mysql–<\/span>bin <\/span>4<\/span><\/b>\u3001\u6587\u4ef6\u540d\u4ee5\\”\u524d\u7f00\\”.000001<\/span><\/b>~<\/span>N <\/span>log<\/span>–<\/span>bin=\/<\/span>data\/<\/span>mysql\/<\/span>mysql–<\/span>bin<\/p>\n

              \u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u201c\u5206\u5f00\u5173\u201d\uff1a<\/p>\n

              \u53ea\u6709\u603b\u95f8\u5f00\u542f\u624d\u6709\u610f\u4e49\uff0c\u9ed8\u8ba4\u662f\u5f00\u542f\u72b6\u6001\u3002 \u6211\u4eec\u5728\u6709\u4e9b\u65f6\u5019\u4f1a\u4e34\u65f6\u5173\u95ed\u6389\u3002 \u53ea\u5f71\u54cd\u5f53\u524d\u4f1a\u8bdd\u3002 sql_log_bin<\/span>=<\/span>1<\/span><\/b>\/<\/span>0<\/span><\/b><\/p>\n

              1.7.1 \u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u683c\u5f0f<\/span><\/h3>\n

              statement\uff0c\u8bed\u53e5\u6a21\u5f0f\uff1a<\/p>\n

              \u8bb0\u5f55\u4fe1\u606f\u7b80\u6d01\uff0c\u8bb0\u5f55\u7684\u662fSQL\u8bed\u53e5\u672c\u8eab\u3002\u4f46\u662f\u5728\u8bed\u53e5\u4e2d\u51fa\u73b0\u51fd\u6570\u64cd\u4f5c\u7684\u8bdd\uff0c\u6709\u53ef\u80fd\u8bb0\u5f55\u7684\u6570\u636e\u4e0d\u51c6\u786e\u3002 <\/span>5<\/span><\/b>.6\u4e2d\u9ed8\u8ba4\u6a21\u5f0f\uff0c\u4f46\u751f\u4ea7\u73af\u5883\u4e2d\u614e\u7528\uff0c\u5efa\u8bae\u6539\u6210row\u3002<\/p>\n

              row\uff0c\u884c\u6a21\u5f0f<\/p>\n

              \u8868\u4e2d\u884c\u6570\u636e\u7684\u53d8\u5316\u8fc7\u7a0b\u3002 \u8bb0\u5f55\u6570\u636e\u8be6\u7ec6\uff0c\u5bf9IO\u6027\u80fd\u8981\u6c42\u6bd4\u8f83\u9ad8 \u8bb0\u5f55\u6570\u636e\u5728\u4efb\u4f55\u60c5\u51b5\u4e0b\u90fd\u662f\u51c6\u786e\u7684\u3002 \u751f\u4ea7\u4e2d\u4e00\u822c\u662f\u8fd9\u79cd\u6a21\u5f0f\u3002 <\/span>5<\/span><\/b>.7\u4ee5\u540e\u9ed8\u8ba4\u7684\u6a21\u5f0f\u3002<\/p>\n

              mixed\uff0c\u6df7\u5408\u6a21\u5f0f<\/p>\n

              \u7ecf\u8fc7\u5224\u65ad\uff0c\u9009\u62e9row+<\/span>statement\u6df7\u5408\u7684\u4e00\u79cd\u8bb0\u5f55\u6a21\u5f0f\u3002\uff08\u4e00\u822c\u4e0d\u7528\uff09<\/p>\n

              1.7.2 \u5f00\u542f\u4e8c\u8fdb\u5236\u65e5\u5fd7<\/span><\/h3>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%log_bin%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>——————————-+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>——————————-+——-+<\/span> |<\/span> log_bin |<\/span> OFF<\/span> |<\/span> |<\/span> log_bin_basename |<\/span> |<\/span> |<\/span> log_bin_index |<\/span> |<\/span> |<\/span> log_bin_trust_function_creators |<\/span> OFF<\/span> |<\/span> |<\/span> log_bin_use_v1_row_events |<\/span> OFF<\/span> |<\/span> |<\/span> sql_log_bin |<\/span> ON<\/span> |<\/span> +<\/span>—<\/span>——————————-+——-+<\/span> 6<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              \u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u5f00\u542f\u4e8c\u8fdb\u5236\u65e5\u5fd7<\/p>\n

              [<\/span>root@db02 tmp<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf <\/span>[<\/span>mysqld<\/span>]<\/span> log<\/span>–<\/span>bin=\/<\/span>application\/<\/span>mysql\/<\/span>data\/<\/span>mysql–<\/span>bin<\/p>\n

              \u547d\u4ee4\u884c\u4fee\u6539\u7684\u65b9\u6cd5<\/span><\/em><\/i><\/p>\n

              mysql><\/span> SET<\/span> GLOBAL binlog_format =<\/span> \\’<\/span>STATEMENT<\/span>\\’<\/span> mysql<\/span>><\/span> SET<\/span> GLOBAL binlog_format =<\/span> \\’<\/span>ROW<\/span>\\’<\/span>; mysql<\/span>><\/span> SET<\/span> GLOBAL binlog_format =<\/span> \\’<\/span>MIXED<\/span>\\’<\/span>;<\/p>\n

              \u67e5\u770b\u6587\u4ef6\u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u7c7b\u578b<\/p>\n

              [<\/span>root@db02 data<\/span>]<\/span># file<\/span> mysql–<\/span>bin.*<\/span> mysql<\/span>–<\/span>bin.000001<\/span><\/b>: MySQL replication<\/span> log<\/span> mysql<\/span>–<\/span>bin.index<\/span>: ASCII<\/span> text<\/span><\/p>\n

              \u67e5\u770bMySQL\u7684\u914d\u7f6e\uff1a<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%log_bin%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>——————————-+—————————————–+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>——————————-+—————————————–+<\/span> |<\/span> log_bin |<\/span> ON<\/span> |<\/span> |<\/span> log_bin_basename |<\/span> \/<\/span>application\/<\/span>mysql\/<\/span>data\/<\/span>mysql–<\/span>bin |<\/span> |<\/span> log_bin_index |<\/span> \/<\/span>application\/<\/span>mysql\/<\/span>data\/<\/span>mysql–<\/span>bin.index<\/span> |<\/span> |<\/span> log_bin_trust_function_creators |<\/span> OFF<\/span> |<\/span> |<\/span> log_bin_use_v1_row_events |<\/span> OFF<\/span> |<\/span> |<\/span> sql_log_bin |<\/span> ON<\/span> |<\/span> +<\/span>—<\/span>——————————-+—————————————–+<\/span> 6<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.7.3 \u5b9a\u4e49\u8bb0\u5f55\u65b9\u5f0f<\/span><\/h3>\n

              \u67e5\u770b\u73b0\u5728\u7684\u683c\u5f0f<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%format%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>————————+——————-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————————+——————-+<\/span> |<\/span> binlog_format |<\/span> STATEMENT |<\/span> |<\/span> date_format |<\/span> %<\/span>Y-%<\/span>m-%<\/span>d |<\/span> |<\/span> datetime_format |<\/span> %<\/span>Y-%<\/span>m-%<\/span>d %<\/span>H:%<\/span>i:%<\/span>s |<\/span> |<\/span> default_week_format |<\/span> 0<\/span><\/b> |<\/span> |<\/span> innodb_file_format |<\/span> Antelope |<\/span> |<\/span> innodb_file_format_check |<\/span> ON<\/span> |<\/span> |<\/span> innodb_file_format_max |<\/span> Antelope |<\/span> |<\/span> time_format |<\/span> %<\/span>H:%<\/span>i:%<\/span>s |<\/span> +<\/span>—<\/span>————————+——————-+<\/span> 8<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              \u4fee\u6539\u683c\u5f0f<\/p>\n

              [<\/span>root@db02 data<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf <\/span>[<\/span>mysqld<\/span>]<\/span> binlog_format<\/span>=<\/span>row<\/p>\n

              \u6539\u5b8c\u4e4b\u540e\u67e5\u770b<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%format%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>————————+——————-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————————+——————-+<\/span> |<\/span> binlog_format |<\/span> ROW |<\/span> |<\/span> date_format |<\/span> %<\/span>Y-%<\/span>m-%<\/span>d |<\/span> |<\/span> datetime_format |<\/span> %<\/span>Y-%<\/span>m-%<\/span>d %<\/span>H:%<\/span>i:%<\/span>s |<\/span> |<\/span> default_week_format |<\/span> 0<\/span><\/b> |<\/span> |<\/span> innodb_file_format |<\/span> Antelope |<\/span> |<\/span> innodb_file_format_check |<\/span> ON<\/span> |<\/span> |<\/span> innodb_file_format_max |<\/span> Antelope |<\/span> |<\/span> time_format |<\/span> %<\/span>H:%<\/span>i:%<\/span>s |<\/span> +<\/span>—<\/span>————————+——————-+<\/span> 8<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.8 \u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u64cd\u4f5c<\/span><\/h2>\n

              1.8.1 \u67e5\u770b<\/span><\/h3>\n

              \u00a0 \u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\u67e5\u770b<\/p>\n

              [<\/span>root@db02 data<\/span>]<\/span># ll mysql–<\/span>bin.*<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 143 Dec 20 20:17 mysql-bin.000001<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 120 Dec 20 20:17 mysql-bin.000002<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 82 Dec 20 20:17 mysql-bin.index<\/span><\/p>\n

              \u5237\u65b0\u65e5\u5fd7<\/p>\n

              mysql><\/span> flush logs;<\/p>\n

              \u5237\u65b0\u5b8c\u6210\u540e\u7684\u65e5\u5fd7\u76ee\u5f55<\/p>\n

              [<\/span>root@db02 data<\/span>]<\/span># ll mysql–<\/span>bin.*<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 143 Dec 20 20:17 mysql-bin.000001<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 167 Dec 20 20:24 mysql-bin.000002<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 120 Dec 20 20:24 mysql-bin.000003<\/span> –<\/span>rw–<\/span>rw—<\/span>— 1 mysql mysql 123 Dec 20 20:24 mysql-bin.index<\/span> [<\/span>root@db02 data<\/span>]<\/span>#<\/p>\n

              \u67e5\u770b\u5f53\u524d\u4f7f\u7528\u7684\u4e8c\u8fdb\u5236\u65e5\u5fd7\u6587\u4ef6<\/p>\n

              mysql><\/span> show master status; <\/span>+<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> |<\/span> File<\/span> |<\/span> Position |<\/span> Binlog_Do_DB |<\/span> Binlog_Ignore_DB |<\/span> Executed_Gtid_Set |<\/span> +<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> |<\/span> mysql–<\/span>bin.000003<\/span><\/b> |<\/span> 120<\/span><\/b> |<\/span> |<\/span> |<\/span> |<\/span> +<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              \u67e5\u770b\u6240\u6709\u7684\u4e8c\u8fdb\u5236\u65e5\u5fd7\u6587\u4ef6<\/p>\n

              mysql><\/span> show binary<\/span> logs; <\/span>+<\/span>—<\/span>—————-+———–+<\/span> |<\/span> Log_name |<\/span> File_size |<\/span> +<\/span>—<\/span>—————-+———–+<\/span> |<\/span> mysql–<\/span>bin.000001<\/span><\/b> |<\/span> 143<\/span><\/b> |<\/span> |<\/span> mysql–<\/span>bin.000002<\/span><\/b> |<\/span> 167<\/span><\/b> |<\/span> |<\/span> mysql–<\/span>bin.000003<\/span><\/b> |<\/span> 120<\/span><\/b> |<\/span> +<\/span>—<\/span>—————-+———–+<\/span> 3<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.8.2 \u67e5\u770b\u4e8c\u8fdb\u5236\u65e5\u5fd7\u5185\u5bb9<\/span><\/h3>\n

              \u540d\u8bcd\u8bf4\u660e\uff1a<\/span><\/em><\/i><\/strong><\/p>\n

              \u3000\u30001\u3001events \u4e8b\u4ef6<\/p>\n

              \u00a0\u00a0\u00a0\u00a0\u00a0 \u3000\u3000\u3000\u4e8c\u8fdb\u5236\u65e5\u5fd7\u5982\u4f55\u5b9a\u4e49\uff1a\u547d\u4ee4\u7684\u6700\u5c0f\u53d1\u751f\u5355\u5143<\/p>\n

              \u3000\u30002\u3001position<\/p>\n

              \u00a0\u00a0\u3000\u3000\u3000\u3000 \u6bcf\u4e2a\u4e8b\u4ef6\u5728\u6574\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6\u4e2d\u60f3\u5bf9\u5e94\u7684\u4f4d\u7f6e\u53f7\u5c31\u662fposition\u53f7<\/p>\n

              mysql><\/span> show master status; <\/span>+<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> |<\/span> File<\/span> |<\/span> Position |<\/span> Binlog_Do_DB |<\/span> Binlog_Ignore_DB |<\/span> Executed_Gtid_Set |<\/span> +<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> |<\/span> mysql–<\/span>bin.000003<\/span><\/b> |<\/span> 120<\/span><\/b> |<\/span> |<\/span> |<\/span> |<\/span> +<\/span>—<\/span>—————-+———-+————–+——————+——————-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec) <\/span>[<\/span>root@db02 data<\/span>]<\/span># mysqlbinlog mysql–<\/span>bin.000003<\/span><\/b> >\/<\/span>tmp\/<\/span>aa.ttt<\/p>\n

              \u5bfc\u51fa\u6240\u6709\u7684\u4fe1\u606f<\/p>\n

              [<\/span>root@db02 data<\/span>]<\/span># mysqlbinlog mysql–<\/span>bin.000003<\/span><\/b> >\/<\/span>tmp\/<\/span>aa.ttt<\/p>\n

              binlog<\/span><\/em><\/i><\/strong>\u7684\u67e5\u770b\u65b9\u5f0f\uff1a<\/span><\/em><\/i><\/strong><\/p>\n

              1\u3001\u67e5\u770bbinlog\u539f\u59cb\u4fe1\u606f<\/p>\n

              mysqbin mysql–<\/span>bin.000002<\/span><\/b><\/p>\n

              2\u3001\u5728row\u6a21\u5f0f\u4e0b\uff0c\u7ffb\u8bd1\u6210\u8bed\u53e5<\/p>\n

              mysqlbinlog —<\/span>base64-output=\\’decode-rows\\’ -v mysql-bin.000002<\/span><\/p>\n

              3\u3001\u67e5\u770bbinlog\u4e8b\u4ef6<\/p>\n

              show binary<\/span> logs; \u6240\u6709\u5728\u4f7f\u7528\u7684binlog\u4fe1\u606f show binlog events <\/span>in<\/span> \\’<\/span>\u65e5\u5fd7\u6587\u4ef6<\/span>\\’<\/span><\/p>\n

              4<\/strong>\u3001\u5982\u4f55\u622a\u53d6binlog<\/strong>\u5185\u5bb9\uff0c\u6309\u9700\u6c42\u6062\u590d\uff08\u5e38\u89c4\u601d\u8def\uff09<\/strong><\/p>\n

              \u3000\u3000\uff081\uff09\u3001show binary logs;\u00a0\u00a0 show master status;<\/p>\n

              \u3000\u3000\uff082\uff09\u3001show binlog events in \\’\\’ \u4ece\u540e\u5f80\u524d\u770b\uff0c\u627e\u5230\u8bef\u64cd\u4f5c\u7684\u4e8b\u52a1\uff0c\u5224\u65ad\u4e8b\u52a1\u5f00\u59cbposition\u548c\u7ed3\u675fposition<\/p>\n

              \u3000\u3000\uff083\uff09\u3001\u628a\u8bef\u64cd\u4f5c\u7684\u5254\u9664\u6389\uff0c\u7559\u4e0b\u6b63\u5e38\u64cd\u4f5c\u52302\u4e2asql\u6587\u4ef6\u4e2d<\/p>\n

              \u3000\u3000\uff084\uff09\u3001\u5148\u6d4b\u8bd5\u5e93\u6062\u590d\uff0c\u628a\u8bef\u64cd\u4f5c\u7684\u6570\u636e\u5bfc\u51fa\uff0c\u7136\u540e\u751f\u4ea7\u6062\u590d\u3002<\/p>\n

              \u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u9047\u5230\u7684\u95ee\u9898\uff1a<\/strong><\/span><\/p>\n

              \u00a0\u3000\u3000 \u6062\u590d\u4e8b\u4ef6\u8f83\u957f<\/p>\n

              \u00a0 \u3000\u3000\u3000\u3000\u5bf9\u751f\u4ea7\u6570\u636e\u6709\u4e00\u5b9a\u7684\u5f71\u54cd\uff0c\u6709\u53ef\u80fd\u4f1a\u51fa\u73b0\u5197\u4f59\u6570\u636e<\/p>\n

              \u3000\u8f83\u597d\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/strong><\/span><\/p>\n

              \u3000\u3000\u3000\u30001\u3001flashback\u95ea\u56de\u529f\u80fd<\/p>\n

              \u3000\u3000\u3000\u30002\u3001\u901a\u8fc7\u5907\u4efd\uff0c\u5ef6\u65f6\u4ece\u5e93<\/p>\n

              1.8.3 mysqlbinlog\u622a\u53d6\u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u65b9\u6cd5<\/span><\/h3>\n

              mysqlbinlog\u5e38\u89c1\u7684\u9009\u9879\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n

              \n\n\n\n\n\n\n\n
              \n

              \u53c2\u6570<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u53c2\u6570\u8bf4\u660e<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

              \n

              –start-datetime<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u4ece\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e2d\u8bfb\u53d6\u6307\u5b9a\u7b49\u4e8e\u65f6\u95f4\u6233\u6216\u8005\u665a\u4e8e\u672c\u5730\u8ba1\u7b97\u673a\u7684\u65f6\u95f4<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              –stop-datetime<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u4ece\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e2d\u8bfb\u53d6\u6307\u5b9a\u5c0f\u4e8e\u65f6\u95f4\u6233\u6216\u8005\u7b49\u4e8e\u672c\u5730\u8ba1\u7b97\u673a\u7684\u65f6\u95f4\u53d6\u503c\u548c\u4e0a\u8ff0\u4e00\u6837<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              –start-position<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u4ece\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e2d\u8bfb\u53d6\u6307\u5b9a<\/span>position\u00a0<\/span>\u4e8b\u4ef6\u4f4d\u7f6e\u4f5c\u4e3a\u5f00\u59cb\u3002<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              –stop-position<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u4ece\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e2d\u8bfb\u53d6\u6307\u5b9a<\/span>position\u00a0<\/span>\u4e8b\u4ef6\u4f4d\u7f6e\u4f5c\u4e3a\u4e8b\u4ef6\u622a\u81f3<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u00a0 \u4e8c\u8fdb\u5236\u65e5\u5fd7\u6587\u4ef6\u793a\u4f8b\uff1a\u00a0\u00a0mysqlbinlog\u00a0–start-position=120 –stop-position=\u7ed3\u675f\u53f7\u00a0<\/span><\/p>\n

              1.8.4 \u5220\u9664\u4e8c\u8fdb\u5236\u65e5\u5fd7<\/span><\/h3>\n

              \u3000\u3000\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4e0d\u4f1a\u5220\u9664\u65e7\u7684\u65e5\u5fd7\u6587\u4ef6\u3002<\/span><\/strong><\/p>\n

              \u6839\u636e\u5b58\u5728\u65f6\u95f4\u5220\u9664\u65e5\u5fd7\uff1a<\/p>\n

              SET<\/span> GLOBAL expire_logs_days =<\/span> 7<\/span><\/b>; \u6216 PURGE <\/span>BINARY<\/span> LOGS BEFORE now() –<\/span> INTERVAL 3<\/span><\/b> day<\/span>;<\/p>\n

              \u6839\u636e\u6587\u4ef6\u540d\u5220\u9664\u65e5\u5fd7\uff1a<\/p>\n

              PURGE BINARY<\/span> LOGS TO<\/span> \\’<\/span>mysql-bin.000010<\/span>\\’<\/span>;<\/p>\n

              \u00a0\u00a0 \u91cd\u7f6e\u4e8c\u8fdb\u5236\u65e5\u5fd7\u8ba1\u6570\uff0c\u4ece1\u5f00\u59cb\u8ba1\u6570\uff0c\u5220\u9664\u539f\u6709\u7684\u4e8c\u8fdb\u5236\u65e5\u5fd7\u3002<\/p>\n

              reset master<\/p>\n

              1.9 mysql\u7684\u6162\u67e5\u8be2\u65e5\u5fd7\uff08slow log\uff09<\/span><\/h2>\n

              1.9.1 \u8fd9\u662f\u4ec0\u4e48\u5462\uff1f<\/span><\/h3>\n

              \u3000\u3000slow-log\u00a0 \u8bb0\u5f55\u6240\u6709\u6761\u4ef6\u5185\u7684\u6162\u7684sql\u8bed\u53e5<\/p>\n

              \u00a0\u00a0\u3000\u00a0\u4f18\u5316\u7684\u4e00\u79cd\u5de5\u5177\u65e5\u5fd7\u3002\u80fd\u591f\u5e2e\u6211\u4eec\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n

              1.9.2 \u6162\u67e5\u8be2\u65e5\u5fd7<\/span><\/h3>\n

              \u3000\u3000\u662f\u5c06mysql\u670d\u52a1\u5668\u4e2d\u5f71\u54cd\u6570\u636e\u5e93\u6027\u80fd\u7684\u76f8\u5173SQL\u8bed\u53e5\u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6<\/p>\n

              \u3000\u3000\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u7279\u6b8a\u7684SQL\u8bed\u53e5\u5206\u6790\uff0c\u6539\u8fdb\u4ee5\u8fbe\u5230\u63d0\u9ad8\u6570\u636e\u5e93\u6027\u80fd\u7684\u76ee\u7684\u3002\u6162\u65e5\u5fd7\u8bbe\u7f6e<\/p>\n

              long_query_time \uff1a \u8bbe\u5b9a\u6162\u67e5\u8be2\u7684\u9600\u503c\uff0c\u8d85\u51fa\u6b21\u8bbe\u5b9a\u503c\u7684SQL\u5373\u88ab\u8bb0\u5f55\u5230\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u7f3a\u7701\u503c\u4e3a10s slow_query_log \uff1a \u6307\u5b9a\u662f\u5426\u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7 slow_query_log_file \uff1a \u6307\u5b9a\u6162\u65e5\u5fd7\u6587\u4ef6\u5b58\u653e\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u4e3a\u7a7a\uff0c\u7cfb\u7edf\u4f1a\u7ed9\u4e00\u4e2a\u7f3a\u7701\u7684\u6587\u4ef6host_name<\/span>–<\/span>slow.log<\/span> min_examined_row_limit\uff1a\u67e5\u8be2\u68c0\u67e5\u8fd4\u56de\u5c11\u4e8e\u8be5\u53c2\u6570\u6307\u5b9a\u884c\u7684SQL\u4e0d\u88ab\u8bb0\u5f55\u5230\u6162\u67e5\u8be2\u65e5\u5fd7 log_queries_not_using_indexes: \u4e0d\u4f7f\u7528\u7d22\u5f15\u7684\u6162\u67e5\u8be2\u65e5\u5fd7\u662f\u5426\u8bb0\u5f55\u5230\u7d22\u5f15<\/span><\/p>\n

              \u6162\u67e5\u8be2\u65e5\u5fd7\u914d\u7f6e<\/strong><\/p>\n

              [<\/span>root@db02 htdocs<\/span>]<\/span># vim \/<\/span>etc\/<\/span>my.cnf slow_query_log<\/span>=<\/span>ON<\/span> slow_query_log_file<\/span>=\/<\/span>tmp\/<\/span>slow.log<\/span> long_query_time<\/span>=<\/span>0.5<\/span><\/b> # \u63a7\u5236\u6162\u65e5\u5fd7\u8bb0\u5f55\u7684\u9608\u503c log_queries_not_using_indexes<\/span><\/p>\n

              \u00a0\u00a0\u00a0\u00a0\u00a0 \u914d\u7f6e\u5b8c\u6210\u540e\u91cd\u542f\u670d\u52a1…<\/p>\n

              \u67e5\u770b\u6162\u67e5\u8be2\u65e5\u5fd7\u662f\u5426\u5f00\u542f\uff0c\u53ca\u5176\u4f4d\u7f6e\u3002<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%slow%<\/span>\\’<\/span> -><\/span> ; <\/span>+<\/span>—<\/span>————————-+—————+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————————-+—————+<\/span> |<\/span> log_slow_admin_statements |<\/span> OFF<\/span> |<\/span> |<\/span> log_slow_slave_statements |<\/span> OFF<\/span> |<\/span> |<\/span> slow_launch_time |<\/span> 2<\/span><\/b> |<\/span> |<\/span> slow_query_log |<\/span> ON<\/span> |<\/span> |<\/span> slow_query_log_file |<\/span> \/<\/span>tmp\/<\/span>slow.log<\/span> |<\/span> +<\/span>—<\/span>————————-+—————+<\/span> 5<\/span><\/b> rows in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              1.9.3 mysqldumpslow\u547d\u4ee4<\/span><\/h3>\n

              \u3000\/<\/span>path\/<\/span>mysqldumpslow –<\/span>s c –<\/span>t 10<\/span><\/b> \/<\/span>database<\/span>\/<\/span>mysql\/<\/span>slow–<\/span>log<\/span><\/p>\n

              \u8fd9\u4f1a\u8f93\u51fa\u8bb0\u5f55\u6b21\u6570\u6700\u591a\u768410\u6761SQL\u8bed\u53e5\uff0c\u5176\u4e2d\uff1a<\/p>\n\n\n\n\n\n\n\n
              \n

              \u53c2\u6570<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u8bf4\u660e<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

              \n

              -s<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u662f\u8868\u793a\u6309\u7167\u4f55\u79cd\u65b9\u5f0f\u6392\u5e8f\uff0c<\/span>c<\/span>\u3001<\/span>t<\/span>\u3001<\/span>l<\/span>\u3001<\/span>r<\/span>\u5206\u522b\u662f\u6309\u7167\u8bb0\u5f55\u6b21\u6570\u3001\u65f6\u95f4\u3001\u67e5\u8be2<\/span><\/p>\n

              \u65f6\u95f4\u3001\u8fd4\u56de\u7684\u8bb0\u5f55\u6570\u6765\u6392\u5e8f\uff0c<\/span>ac<\/span>\u3001<\/span>at<\/span>\u3001<\/span>al<\/span>\u3001<\/span>ar<\/span>\uff0c\u8868\u793a\u76f8\u5e94\u7684\u5012\u53d9\uff1b<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              -t<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u662f<\/span>top n<\/span>\u7684\u610f\u601d\uff0c\u5373\u4e3a\u8fd4\u56de\u524d\u9762\u591a\u5c11\u6761\u7684\u6570\u636e\uff1b<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              -g<\/span><\/strong><\/p>\n<\/td>\n

              		\n

              \u540e\u8fb9\u53ef\u4ee5\u5199\u4e00\u4e2a\u6b63\u5219\u5339\u914d\u6a21\u5f0f\uff0c\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\uff1b<\/span><\/p>\n<\/td>\n<\/tr>\n

              \n

              \u4f8b\u5b50\uff1a<\/span><\/strong><\/p>\n

              \/path\/mysqldumpslow -s r -t 10 \/database\/mysql\/slow-log<\/span><\/p>\n

              \u5f97\u5230\u8fd4\u56de\u8bb0\u5f55\u96c6\u6700\u591a\u7684<\/span>10<\/span>\u4e2a\u67e5\u8be2\u3002<\/span><\/p>\n

              \/path\/mysqldumpslow -s t -t 10 -g \u201cleft<\/span><\/p>\n

              join\u201d\/database\/mysql\/slow-log<\/span><\/p>\n

              \u5f97\u5230\u6309\u7167\u65f6\u95f4\u6392\u5e8f\u7684\u524d<\/span>10<\/span>\u6761\u91cc\u9762\u542b\u6709\u5de6\u8fde\u63a5\u7684\u67e5\u8be2\u8bed\u53e5\u3002<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              1.9.4 \u600e\u4e48\u4fdd\u8bc1binlog\u548credolog\u5df2\u63d0\u4ea4\u4e8b\u52a1\u7684\u4e00\u81f4\u6027<\/span><\/h3>\n

              \u3000\u3000\u5728\u6ca1\u6709\u5f00\u542fbinlog\u7684\u65f6\u5019\uff0c\u5728\u6267\u884ccommit\uff0c\u8ba4\u4e3aredo\u65e5\u5fd7\u6301\u4e45\u5316\u5230\u78c1\u76d8\u6587\u4ef6\u4e2d\uff0ccommit\u547d\u4ee4\u5c31\u6210\u529f\u3002<\/span><\/p>\n

              \u5199binlog\u53c2\u6570\uff1a<\/p>\n

              mysql><\/span> show variables like<\/span> \\’<\/span>%sync_binlog%<\/span>\\’<\/span>; <\/span>+<\/span>—<\/span>————-+——-+<\/span> |<\/span> Variable_name |<\/span> Value |<\/span> +<\/span>—<\/span>————-+——-+<\/span> |<\/span> sync_binlog |<\/span> 0<\/span><\/b> |<\/span> #\u63a7\u5236binlog commit<\/span> \u9636\u6bb5 <\/span>+<\/span>—<\/span>————-+——-+<\/span> 1<\/span><\/b> row in<\/span> set<\/span> (0.00<\/span><\/b> sec)<\/p>\n

              \u00a0\u00a0 sync_binlog \u786e\u4fdd\u662f\u5426\u6bcf\u4e2a\u63d0\u4ea4\u7684\u4e8b\u52a1\u90fd\u5199\u5230binlog\u4e2d\u3002<\/p>\n

              1.9.5 mysql\u4e2d\u7684\u53cc\u4e00\u6807\u51c6\uff1a<\/span><\/h3>\n

              \u3000\u3000innodb_flush_log_at_trx_commit\u548csync_binlog \u4e24\u4e2a\u53c2\u6570\u662f\u63a7\u5236MySQL \u78c1\u76d8\u5199\u5165\u7b56\u7565\u4ee5\u53ca\u6570\u636e\u5b89\u5168\u6027\u7684\u5173\u952e\u53c2\u6570\u3002<\/p>\n

              \u53c2\u6570\u610f\u4e49\u8bf4\u660e\uff1a<\/span><\/em><\/i><\/p>\n

              innodb_flush_log_at_trx_commit=<\/span>1<\/span><\/b><\/p>\n

              \u3000\u3000\u5982\u679cinnodb_flush_log_at_trx_commit\u8bbe\u7f6e\u4e3a0\uff0clog buffer\u5c06\u6bcf\u79d2\u4e00\u6b21\u5730\u5199\u5165log file\u4e2d\uff0c\u5e76\u4e14log file\u7684flush(\u5237\u5230\u78c1\u76d8)\u64cd\u4f5c\u540c\u65f6\u8fdb\u884c.\u8be5\u6a21\u5f0f\u4e0b\uff0c\u5728\u4e8b\u52a1\u63d0\u4ea4\u7684\u65f6\u5019\uff0c\u4e0d\u4f1a\u4e3b\u52a8\u89e6\u53d1\u5199\u5165\u78c1\u76d8\u7684\u64cd\u4f5c\u3002<\/p>\n

              \u3000\u3000\u5982\u679cinnodb_flush_log_at_trx_commit\u8bbe\u7f6e\u4e3a1\uff0c\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u65f6MySQL\u90fd\u4f1a\u628alog buffer\u7684\u6570\u636e\u5199\u5165log file\uff0c\u5e76\u4e14flush(\u5237\u5230\u78c1\u76d8)\u4e2d\u53bb.<\/p>\n

              \u3000\u3000\u5982\u679cinnodb_flush_log_at_trx_commit\u8bbe\u7f6e\u4e3a2\uff0c\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u65f6MySQL\u90fd\u4f1a\u628alog buffer\u7684\u6570\u636e\u5199\u5165log file.\u4f46\u662fflush(\u5237\u5230\u78c1\u76d8)\u64cd\u4f5c\u5e76\u4e0d\u4f1a\u540c\u65f6\u8fdb\u884c\u3002\u8be5\u6a21\u5f0f\u4e0b,MySQL\u4f1a\u6bcf\u79d2\u6267\u884c\u4e00\u6b21 flush(\u5237\u5230\u78c1\u76d8)\u64cd\u4f5c\u3002<\/p>\n

              \u6ce8\u610f\uff1a<\/strong><\/p>\n

              \u7531\u4e8e\u8fdb\u7a0b\u8c03\u5ea6\u7b56\u7565\u95ee\u9898,\u8fd9\u4e2a\u201c\u6bcf\u79d2\u6267\u884c\u4e00\u6b21 flush(\u5237\u5230\u78c1\u76d8)\u64cd\u4f5c\u201d\u5e76\u4e0d\u662f\u4fdd\u8bc1100%<\/span>\u7684\u201c\u6bcf\u79d2\u201d\u3002<\/p>\n

              \u53c2\u6570\u610f\u4e49\u8bf4\u660e\uff1a<\/em><\/i><\/span><\/p>\n

              \u00a0\u3000\u3000sync_binlog=1<\/b><\/span><\/p>\n

              \u3000\u3000sync_binlog \u7684\u9ed8\u8ba4\u503c\u662f0\uff0c\u50cf\u64cd\u4f5c\u7cfb\u7edf\u5237\u5176\u4ed6\u6587\u4ef6\u7684\u673a\u5236\u4e00\u6837\uff0cMySQL\u4e0d\u4f1a\u540c\u6b65\u5230\u78c1\u76d8\u4e2d\u53bb\u800c\u662f\u4f9d\u8d56\u64cd\u4f5c\u7cfb\u7edf\u6765\u5237\u65b0binary log\u3002<\/p>\n

              \u3000\u3000\u5f53sync_binlog =N (N>0) \uff0cMySQL \u5728\u6bcf\u5199 N\u6b21 \u4e8c\u8fdb\u5236\u65e5\u5fd7binary log\u65f6\uff0c\u4f1a\u4f7f\u7528fdatasync()\u51fd\u6570\u5c06\u5b83\u7684\u5199\u4e8c\u8fdb\u5236\u65e5\u5fd7binary log\u540c\u6b65\u5230\u78c1\u76d8\u4e2d\u53bb\u3002<\/p>\n

              \u6ce8:<\/strong><\/p>\n

              \u3000\u3000\u5982\u679c\u542f\u7528\u4e86autocommit\uff0c\u90a3\u4e48\u6bcf\u4e00\u4e2a\u8bed\u53e5statement\u5c31\u4f1a\u6709\u4e00\u6b21\u5199\u64cd\u4f5c\uff1b\u5426\u5219\u6bcf\u4e2a\u4e8b\u52a1\u5bf9\u5e94\u4e00\u4e2a\u5199\u64cd\u4f5c\u3002<\/p>\n

              \u5b89\u5168\u65b9\u9762\u8bf4\u660e<\/strong><\/span><\/p>\n

              \u3000\u3000\u5f53innodb_flush_log_at_trx_commit\u548csync_binlog \u90fd\u4e3a 1 \u65f6\u662f\u6700\u5b89\u5168\u7684\uff0c\u5728mysqld \u670d\u52a1\u5d29\u6e83\u6216\u8005\u670d\u52a1\u5668\u4e3b\u673acrash\u7684\u60c5\u51b5\u4e0b\uff0cbinary log \u53ea\u6709\u53ef\u80fd\u4e22\u5931\u6700\u591a\u4e00\u4e2a\u8bed\u53e5\u6216\u8005\u4e00\u4e2a\u4e8b\u52a1\u3002\u4f46\u662f\u9c7c\u4e0e\u718a\u638c\u4e0d\u53ef\u517c\u5f97\uff0c\u53cc11 \u4f1a\u5bfc\u81f4\u9891\u7e41\u7684io\u64cd\u4f5c\uff0c\u56e0\u6b64\u8be5\u6a21\u5f0f\u4e5f\u662f\u6700\u6162\u7684\u4e00\u79cd\u65b9\u5f0f\u3002<\/p>\n

              \u3000\u3000\u5f53innodb_flush_log_at_trx_commit\u8bbe\u7f6e\u4e3a0\uff0cmysqld\u8fdb\u7a0b\u7684\u5d29\u6e83\u4f1a\u5bfc\u81f4\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u7684\u4e22\u5931\u3002<\/p>\n

              \u3000\u3000\u5f53innodb_flush_log_at_trx_commit\u8bbe\u7f6e\u4e3a2\uff0c\u53ea\u6709\u5728\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u6216\u8005\u7cfb\u7edf\u6389\u7535\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u624d\u53ef\u80fd\u4e22\u5931\u3002<\/p>\n

              \u3000\u3000\u53cc1\u9002\u5408\u6570\u636e\u5b89\u5168\u6027\u8981\u6c42\u975e\u5e38\u9ad8\uff0c\u800c\u4e14\u78c1\u76d8IO\u5199\u80fd\u529b\u8db3\u591f\u652f\u6301\u4e1a\u52a1\uff0c\u6bd4\u5982\u8ba2\u5355,\u4ea4\u6613,\u5145\u503c,\u652f\u4ed8\u6d88\u8d39\u7cfb\u7edf\u3002\u53cc1\u6a21\u5f0f\u4e0b\uff0c\u5f53\u78c1\u76d8IO\u65e0\u6cd5\u6ee1\u8db3\u4e1a\u52a1\u9700\u6c42\u65f6 \u6bd4\u598211.11 \u6d3b\u52a8\u7684\u538b\u529b\u3002\u63a8\u8350\u7684\u505a\u6cd5\u662f innodb_flush_log_at_trx_commit=2 \uff0csync_binlog=N (N\u4e3a500 \u62161000) \u4e14\u4f7f\u7528\u5e26\u84c4\u7535\u6c60\u540e\u5907\u7535\u6e90\u7684\u7f13\u5b58cache\uff0c\u9632\u6b62\u7cfb\u7edf\u65ad\u7535\u5f02\u5e38\u3002<\/p>\n

              \u3000\u3000\u7cfb\u7edf\u6027\u80fd\u548c\u6570\u636e\u5b89\u5168\u662f\u4e1a\u52a1\u7cfb\u7edf\u9ad8\u53ef\u7528\u7a33\u5b9a\u7684\u5fc5\u8981\u56e0\u7d20\u3002\u6211\u4eec\u5bf9\u7cfb\u7edf\u7684\u4f18\u5316\u9700\u8981\u5bfb\u627e\u4e00\u4e2a\u5e73\u8861\u70b9\uff0c\u5408\u9002\u7684\u624d\u662f\u6700\u597d\u7684\uff0c\u6839\u636e\u4e0d\u540c\u7684\u4e1a\u52a1\u573a\u666f\u9700\u6c42\uff0c\u53ef\u4ee5\u5c06\u4e24\u4e2a\u53c2\u6570\u505a\u7ec4\u5408\u8c03\u6574\uff0c\u4ee5\u4fbf\u662fdb\u7cfb\u7edf\u7684\u6027\u80fd\u8fbe\u5230\u6700\u4f18\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

              1.1 \u5b58\u50a8\u5f15\u64ce\u7684\u4ecb\u7ecd 1.1.1 \u6587\u4ef6\u7cfb\u7edf\u5b58\u50a8 \u3000\u3000\u6587\u4ef6\u7cfb\u7edf\uff1a\u64cd\u4f5c\u7cfb\u7edf\u7ec4\u7ec7\u548c\u5b58\u53d6\u6570\u636e\u7684\u4e00\u79cd\u673a\u5236\u3002\u6587\u4ef6\u7cfb\u7edf\u662f\u4e00 …<\/p>\n

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