{"id":17077,"date":"2025-04-18T23:32:12","date_gmt":"2025-04-18T15:32:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/17077.html"},"modified":"2025-04-18T23:32:12","modified_gmt":"2025-04-18T15:32:12","slug":"mysql%e8%b0%83%e4%bc%98%e4%b9%8b%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/17077.html","title":{"rendered":"mysql\u8c03\u4f18\u4e4b\u670d\u52a1\u5668\u53c2\u6570"},"content":{"rendered":"

\u670d\u52a1\u5668\u53c2\u6570\u8bbe\u7f6e<\/h2>\n

1.general<\/h3>\n

1）datadir=\/var\/lib\/mysql \u6570\u636e\u6587\u4ef6\u5b58\u653e\u7684\u76ee\u5f55 2）socket==\/var\/lib\/mysql\/mysql_socket mysql_socket\u8868\u793aserver\u548cclient\u5728\u540c\u4e00\u53f0\u670d\u52a1\u5668，\u5e76\u4e14\u5982\u679c\u4f7f\u7528localhost\u8fdb\u884c\u8fde\u63a5，\u5c31\u4f1a\u4f7f\u7528socket\u8fdb\u884c\u8fde\u63a5 3）pid_file=\/var\/lib\/mysql\/mysql_pid \u5b58\u50a8MySQL\u7684pid 4）port=3306 mysql\u670d\u52a1\u5668\u7684\u7aef\u53e3\u53f7 5）default_storage_engine=innoDB mysql\u5b58\u50a8\u5f15\u64ce 6）skip-grant-tables \u5f53\u5fd8\u8bb0MySQL\u7684\u7528\u6237\u540d\u5bc6\u7801\u7684\u65f6\u5019，\u53ef\u4ee5\u5728MySQL\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6e\u8be5\u53c2\u6570，\u8df3\u8fc7\u6743\u9650\u9a8c\u8bc1，\u4e0d\u9700\u8981\u5bc6\u7801\u5373\u53ef\u767b\u5f55MySQL<\/p>\n

2.character<\/h3>\n

1）character_set_client \u5ba2\u6237\u7aef\u6570\u636e\u7684\u5b57\u7b26\u96c6 2）character_set_connection mysql\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u4fe1\u606f\u65f6，\u4f1a\u628a\u8fd9\u4e9b\u6570\u636e\u8f6c\u6362\u6210\u8fde\u63a5\u7684\u5b57\u7b26\u96c6\u683c\u5f0f 3）character_set_results MySQL\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u7684\u7ed3\u679c\u96c6\u6240\u7528\u7684\u5b57\u7b26\u96c6 4）character_set_database \u6570\u636e\u5e93\u9ed8\u8ba4\u7684\u5b57\u7b26\u96c6 5）character_set_server MySQL server\u7684\u9ed8\u8ba4\u5b57\u7b26\u96c6<\/p>\n

3.connection<\/h3>\n

1）max_connection mysql\u7684\u6700\u5927\u8fde\u63a5\u6570 2）max_user_connection \u9650\u5236\u6bcf\u4e2a\u7528\u6237\u7684\u8fde\u63a5\u4e2a\u6570 3）back_log MySQL\u80fd\u591f\u6682\u5b58\u7684\u8fde\u63a5\u6570\u91cf，\u5f53MySQL\u7684\u7ebf\u7a0b\u5728\u5f88\u77ed\u65f6\u95f4\u5185\u5f97\u5230\u975e\u5e38\u591a\u7684\u8fde\u63a5\u8bf7\u6c42\u65f6，\u5c31\u4f1a\u8d77\u4f5c\u7528，\u5982\u679cMySQL\u7684\u8fde\u63a5\u6570\u91cf\u8fbe\u5230max_connection\u65f6，\u65b0\u7684\u8bf7\u6c42\u5c31\u4f1a\u88ab\u5b58\u50a8\u5728\u5806\u6808\u4e2d，\u4ee5\u7b49\u5f85\u67d0\u4e00\u4e2a\u8fde\u63a5\u91ca\u653e\u8d44\u6e90，\u5982\u679c\u7b49\u5f85\u8fde\u63a5\u7684\u6570\u91cf\u8d85\u8fc7back_log \u5219\u4e0d\u518d\u63a5\u53d7\u8fde\u63a5\u8d44\u6e90 4）wait_timeout MySQL\u5728\u5173\u95ed\u4e00\u4e2a\u975e\u4ea4\u4e92\u8fde\u63a5\u4e4b\u524d\u9700\u8981\u7b49\u5f85\u7684\u79d2\u6570 5）interactive_timeout \u5173\u95ed\u4e00\u4e2a\u4ea4\u4e92\u8fde\u63a5\u4e4b\u524d \u9700\u8981\u7b49\u5f85\u7684\u79d2\u6570<\/p>\n

4.log<\/h3>\n

1）log_error \u6307\u5b9a\u9519\u8bef\u65e5\u5fd7\u6587\u4ef6\u540d\u79f0，\u7528\u4e8e\u8bb0\u5f55\u5f53MySQL\u542f\u52a8\u548c\u505c\u6b62\u65f6，\u4ee5\u53ca\u670d\u52a1\u5668\u5728\u8fd0\u884c\u4e2d\u53d1\u751f\u4efb\u4f55\u4e25\u91cd\u9519\u8bef\u65f6\u7684\u76f8\u5173\u4fe1\u606f 2）log_bin \u6307\u5b9a\u4e8c\u8fdb\u5236\u65e5\u5fd7\u6587\u4ef6\u540d\u79f0，\u7528\u4e8e\u8bb0\u5f55\u5bf9\u6570\u636e\u9020\u6210\u66f4\u6539\u7684\u6240\u6709\u8bed\u53e5 3）binlog_do_db \u6307\u5b9a\u5c06\u66f4\u65b0\u8bb0\u5f55\u5230\u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u6570\u636e\u5e93，\u5176\u4ed6\u6ca1\u6709\u663e\u793a\u6307\u5b9a\u7684\u6570\u636e\u5e93\u66f4\u65b0\u5c06\u5ffd\u7565，\u4e0d\u8bb0\u5f55\u5728\u65e5\u5fd7\u4e2d 4）binlog_ignore_db \u5236\u5b9a\u4e0d\u5c06\u66f4\u65b0\u8bb0\u5f55\u5230\u4e8c\u8fdb\u5236\u65e5\u5fd7\u7684\u6570\u636e\u5e93 5）sync_binlog \u5236\u5b9a\u591a\u5c11\u6b21\u5199\u65e5\u5fd7\u540e\u540c\u6b65\u78c1\u76d8 6）general_log \u662f\u5426\u5f00\u542f\u67e5\u8be2\u65e5\u5fd7\u8bb0\u5f55 7）general_log_file \u6307\u5b9a\u67e5\u8be2\u65e5\u5fd7\u6587\u4ef6\u540d，\u7528\u4e8e\u8bb0\u5f55\u6240\u6709\u67e5\u8be2\u8bed\u53e5 8）slow_query_log \u662f\u5426\u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7 9）slow_query_log_file \u6307\u5b9a\u6162\u67e5\u8be2\u65e5\u5fd7\u6587\u4ef6\u540d 10）long_query_time \u8bbe\u7f6e\u6162\u67e5\u8be2\u7684\u65f6\u95f4，\u8d85\u8fc7\u8fd9\u4e2a\u65f6\u95f4\u7684\u67e5\u8be2\u8bed\u53e5\u624d\u4f1a\u8bb0\u5f55\u65e5\u5fd7 11）log_slow_admin_statements \u662f\u5426\u5c06\u7ba1\u7406\u8bed\u53e5\u5199\u5165\u6162\u67e5\u8be2\u65e5\u5fd7 12）redo log \u5f53\u53d1\u751f\u6570\u636e\u4fee\u6539\u65f6，innodb\u5f15\u64ce\u4f1a\u5148\u5c06\u8bb0\u5f55\u5199\u5230redo log\u4e2d，\u5e76\u66f4\u65b0\u5185\u5b58，\u6b64\u65f6\u66f4\u65b0\u7b97\u5b8c\u6210\u4e86，\u540c\u65f6innodb\u5b58\u50a8\u5f15\u64ce\u4f1a\u5728\u5408\u9002\u7684\u65f6\u673a\u5c06\u8bb0\u5f55\u64cd\u4f5c\u5230\u78c1\u76d8\u4e2d\u3002redo log\u662f\u56fa\u5b9a\u5927\u5c0f\u7684，\u662f\u5faa\u73af\u5199\u7684\u8fc7\u7a0b\u3002\u6709\u4e86redo log\u540e，innodb\u53ef\u4ee5\u4fdd\u8bc1\u5373\u4f7f\u6570\u636e\u5e93\u53d1\u751f\u5f02\u5e38\u91cd\u542f\u3002\u4e4b\u524d\u7684\u8bb0\u5f55\u4e5f\u4e0d\u4f1a\u4e22\u5931\u3002\u53eb\u505acrash-safe 13）undo log undo log\u662f\u4e3a\u4e86\u5b9e\u73b0\u4e8b\u52a1\u7684\u539f\u5b50\u6027，\u5728MySQL\u6570\u636e\u5e93innodb\u5b58\u50a8\u5f15\u64ce\u4e2d，\u7528undo log\u6765\u5b9e\u73b0\u591a\u7248\u672c\u63a7\u5236\u7b80\u79f0 MVCC\u3002\u5728\u4efb\u4f55\u64cd\u4f5c\u4e4b\u524d，\u9996\u5148\u5907\u4efd\u6570\u636e\u5230\u4e00\u4e2a\u5730\u65b9，\u5907\u4efd\u6570\u636e\u7684\u5730\u65b9\u79f0\u4e3aundo log.\u5176\u903b\u8f91\u53ef\u4ee5\u7406\u89e3\u4e3a：\u5f53delete\u4e00\u6761\u6570\u636e，undo log\u4e2d\u4f1a\u8bb0\u5f55\u4e00\u6761\u5bf9\u5e94\u7684insert\u8bb0\u5f55\u2026 14）bin log bin log\u662fserver\u5c42\u7684\u65e5\u5fd7，\u4e3b\u8981\u505aMySQL\u529f\u80fd\u5c42\u9762\u7684\u4e8b\u60c5\u3002\\\\n\u4e0eredo log\u7684\u533a\u522b：\\\\n1.redo log\u662finnodb\u72ec\u6709\u7684，bin log\u662f\u6240\u6709\u5b58\u50a8\u5f15\u64ce\u90fd\u53ef\u4ee5\u4f7f\u7528\u7684\\\\n2.redo\u662f\u7269\u7406\u65e5\u5fd7，\u8bb0\u5f55\u7684\u662f\u5728\u67d0\u4e2a\u6570\u636e\u9875\u505a\u7684\u4fee\u6539，bin log\u662f\u903b\u8f91\u65e5\u5fd7，\u8bb0\u5f55\u7684\u662f\u8fd9\u4e2a\u8bed\u53e5\u7684\u539f\u59cb\u903b\u8f91\\\\n3.redo\u662f\u5faa\u73af\u5199\u7684，\u7a7a\u95f4\u4f1a\u7528\u5b8c，binlog\u662f\u53ef\u4ee5\u8ffd\u52a0\u5199\u7684，\u4e0d\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u65e5\u5fd7\u4fe1\u606f<\/p>\n

5.cache<\/h3>\n

1）key_buffer_size \u7d22\u5f15\u7f13\u5b58\u533a\u7684\u5927\u5c0f（\u53ea\u5bf9myisam\u8868\u8d77\u4f5c\u7528） 2）query cache query_cache_size \u67e5\u8be2\u7f13\u5b58\u7684\u5927\u5c0f，\u672a\u6765\u7248\u672c\u5c06\u88ab\u5220\u9664 query_cache_limit \u8d85\u51fa\u6b64\u5927\u5c0f\u7684\u67e5\u8be2\u5c06\u4e0d\u4f1a\u88ab\u7f13\u5b58 query_cache_min_res_unit \u7f13\u5b58\u5757\u6700\u5c0f\u5927\u5c0f query_cache_type \u7f13\u5b58\u7c7b\u578b，\u51b3\u5b9a\u7f13\u5b58\u4ec0\u4e48\u6837\u7684\u67e5\u8be2 0\u8868\u793a\u7981\u7528\u7f13\u5b58 1\u8868\u793a\u5c06\u7f13\u5b58\u6240\u6709\u7684\u7ed3\u679c，\u9664\u975eSQL\u8bed\u53e5\u4f7f\u7528sql_no_cache\u7981\u7528\u67e5\u8be2\u7f13\u5b58 2\u8868\u793a\u53ea\u7f13\u5b58select\u8bed\u53e5\u4e2d\u901a\u8fc7sql_cache\u6307\u5b9a\u7684\u9700\u8981\u7f13\u5b58\u7684\u67e5\u8be2 3）sort_buffer_size \u6bcf\u4e2a\u9700\u8981\u6392\u5e8f\u7684\u7ebf\u7a0b\u5206\u914d\u8be5\u5927\u5c0f\u7684\u7f13\u5b58\u533a 4）max_allowed_packet=32M \u9650\u5236server\u63a5\u53d7\u7684\u6570\u636e\u5305\u5927\u5c0f 5）join_buffer_size \u8868\u793a\u5173\u8054\u7f13\u5b58\u7684\u5927\u5c0f 6）thread_cache_size threads_cached:\u4ee3\u8868\u5f53\u524d\u6b64\u65f6\u6b64\u523b\u7ebf\u7a0b\u7f13\u5b58\u4e2d\u6709\u591a\u5c11\u7a7a\u95f2\u7ebf\u7a0b threads_connected:\u4ee3\u8868\u5f53\u524d\u5df2\u5efa\u7acb\u8fde\u63a5\u7684\u7ebf\u7a0b\u6570\u91cf threads_created:\u4ee3\u8868\u6700\u8fd1\u4e00\u6b21\u670d\u52a1\u5668\u542f\u52a8，\u5df2\u521b\u5efa\u7ebf\u7a0b\u7684\u6570\u91cf，\u5982\u679c\u8be5\u503c\u6bd4\u8f83\u5927，\u90a3\u4e48\u670d\u52a1\u5668\u4f1a\u4e00\u76f4\u5b85\u521b\u5efa\u7ebf\u7a0b threads_running:\u4ee3\u8868\u5f53\u524d\u6fc0\u6d3b\u7684\u7ebf\u7a0b\u6570<\/p>\n

6.innodb<\/h3>\n

1）innodb_buffer_pool_size \u8be5\u53c2\u6570\u6307\u5b9a\u5927\u5c0f\u7684\u5185\u5b58\u6765\u7f13\u5b58\u6570\u636e\u548c\u7d22\u5f15，\u6700\u5927\u53ef\u4ee5\u4f7f\u7269\u7406\u5185\u5b58\u768480% 2）innodb_flush_log_at_trx_commit \u4e3b\u8981\u63a7\u5236innodb\u5c06log buffer\u4e2d\u7684\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5e76flush\u78c1\u76d8\u7684\u65f6\u95f4\u70b9，\u503c\u5206\u522b\u4e3a0.1.2 3）innodb_thread_concurrency innodb\u7ebf\u7a0b\u5e76\u53d1\u6570，\u9ed8\u8ba4\u4e3a0\u8868\u793a\u4e0d\u53d7\u9650\u5236，\u5982\u679c\u8981\u8bbe\u7f6e\u5efa\u8bae\u8ddf\u670d\u52a1\u5668\u7684CPU\u6838\u6570\u4e00\u81f4\u6216\u8005CPU\u6838\u5fc3\u6570\u7684\u4e24\u500d 4）innodb_log_buffer_size \u6b64\u53c2\u6570\u786e\u5b9a\u65e5\u5fd7\u6587\u4ef6\u6240\u7528\u7684\u5185\u5b58\u5927\u5c0f，\u4ee5M\u4e3a\u5355\u4f4d 5）innodb_log_file_size \u6b64\u53c2\u6570\u786e\u5b9a\u65e5\u5fd7\u6587\u4ef6\u7684\u5927\u5c0f，\u4ee5M\u4e3a\u5355\u4f4d 6）innodb_log_files_in_group \u4ee5\u5faa\u73af\u65b9\u5f0f\u5c06\u65e5\u5fd7\u5199\u5165\u591a\u4e2a\u6587\u4ef6\u4e2d 7）read_buffer_size MySQL\u8bfb\u5165\u7f13\u51b2\u533a\u5927\u5c0f，\u5bf9\u8868\u8fdb\u884c\u987a\u5e8f\u626b\u63cf\u7684\u8bf7\u6c42\u5c06\u5206\u914d\u5230\u4e00\u4e2a\u8bfb\u5165\u7f13\u51b2\u533a 8）read_md_buffer_size MySQL\u968f\u673a\u8bfb\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f 9）innodb_file_per_table \u6b64\u53c2\u6570\u4e3a\u6bcf\u4e2a\u8868\u5206\u914d\u4e00\u4e2a\u65b0\u7684\u6587\u4ef6\u670d\u52a1\u5668\u53c2\u6570\u8bbe\u7f6e<\/p>\n","protected":false},"excerpt":{"rendered":"

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