{"id":6991,"date":"2022-05-26T12:15:59","date_gmt":"2022-05-26T04:15:59","guid":{"rendered":"https:\/\/egonlin.com\/?p=6991"},"modified":"2022-05-26T12:15:59","modified_gmt":"2022-05-26T04:15:59","slug":"mysql%e7%9a%84%e8%bf%9e%e6%8e%a5%e6%b1%a0%e3%80%81%e5%bc%82%e6%ad%a5%e3%80%81%e6%96%ad%e7%ba%bf%e9%87%8d%e8%bf%9e","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=6991","title":{"rendered":"MySQL\u7684\u8fde\u63a5\u6c60\u3001\u5f02\u6b65\u3001\u65ad\u7ebf\u91cd\u8fde"},"content":{"rendered":"

\u5b98\u65b9\u6587\u6863\uff1aMysql\u7684\u8fde\u63a5\u6c60\u3001\u5f02\u6b65\u3001\u65ad\u7ebf\u91cd\u8fde<\/a><\/p>\n

\u4e00\u3001Mysql\u7684\u8fde\u63a5\u6c60\u3001\u5f02\u6b65\u3001\u65ad\u7ebf\u91cd\u8fde\uff08\u6765\u81ea\u5b98\u7f51\uff09<\/h1>\n

1.1\u3001MySQL\u957f\u8fde\u63a5<\/h2>\n

MySQL\u77ed\u8fde\u63a5\u6bcf\u6b21\u8bf7\u6c42\u64cd\u4f5c\u6570\u636e\u5e93\u90fd\u9700\u8981\u5efa\u7acb\u4e0eMySQL\u670d\u52a1\u5668\u5efa\u7acbTCP\u8fde\u63a5\uff0c\u8fd9\u662f\u9700\u8981\u65f6\u95f4\u5f00\u9500\u7684\u3002TCP\u8fde\u63a5\u9700\u89813\u6b21\u7f51\u7edc\u901a\u4fe1\u3002\u8fd9\u6837\u5c31\u589e\u52a0\u4e86\u4e00\u5b9a\u7684\u5ef6\u65f6\u548c\u989d\u5916\u7684IO\u6d88\u8017\u3002\u8bf7\u6c42\u7ed3\u675f\u540e\u4f1a\u5173\u95edMySQL\u8fde\u63a5\uff0c\u8fd8\u4f1a\u53d1\u751f3\/4\u6b21\u7f51\u7edc\u901a\u4fe1\u3002<\/p>\n

close\u64cd\u4f5c\u4e0d\u4f1a\u589e\u52a0\u54cd\u5e94\u5ef6\u65f6\uff0c\u539f\u56e0\u662fclose\u540e\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u81ea\u52a8\u8fdb\u884c\u901a\u4fe1\u7684\uff0c\u5e94\u7528\u7a0b\u5e8f\u611f\u77e5\u4e0d\u5230<\/code><\/pre>\n
\u957f\u8fde\u63a5\u5c31\u53ef\u4ee5\u907f\u514d\u6bcf\u6b21\u8bf7\u6c42\u90fd\u521b\u5efa\u8fde\u63a5\u7684\u5f00\u9500\uff0c\u8282\u7701\u4e86\u65f6\u95f4\u548cIO\u6d88\u8017\u3002\u63d0\u5347\u4e86PHP\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n
1.2\u3001\u65ad\u7ebf\u91cd\u8fde<\/h2>\n
\u5728cli\u73af\u5883\u4e0b\uff0cPHP\u7a0b\u5e8f\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u5ba2\u6237\u7aef\u4e0eMySQL\u670d\u52a1\u5668\u4e4b\u95f4\u7684TCP\u8fde\u63a5\u662f\u4e0d\u7a33\u5b9a\u7684\u3002<\/p>\n
MySQL-Server\u4f1a\u5728\u4e00\u5b9a\u65f6\u95f4\u5185\u81ea\u52a8\u5207\u65ad\u8fde\u63a5\nPHP\u7a0b\u5e8f\u9047\u5230\u7a7a\u95f2\u671f\u65f6\u957f\u65f6\u95f4\u6ca1\u6709MySQL\u67e5\u8be2\uff0cMySQL-Server\u4e5f\u4f1a\u5207\u65ad\u8fde\u63a5\u56de\u6536\u8d44\u6e90\n\u5176\u4ed6\u60c5\u51b5\uff0c\u5728MySQL\u670d\u52a1\u5668\u4e2d\u6267\u884ckill process\u6740\u6389\u67d0\u4e2a\u8fde\u63a5\uff0cMySQL\u670d\u52a1\u5668\u91cd\u542f<\/code><\/pre>\n
\u8fd9\u65f6PHP\u7a0b\u5e8f\u4e2d\u7684MySQL\u8fde\u63a5\u5c31\u5931\u6548\u4e86\u3002\u5982\u679c\u4ecd\u7136\u6267\u884cmysql_query\uff0c\u5c31\u4f1a\u62a5\u4e00\u4e2a\u201cMySQL server has gone away\u201d\u7684\u9519\u8bef\u3002\u7a0b\u5e8f\u5904\u7406\u4e0d\u5230\u5c31\u76f4\u63a5\u9047\u5230\u81f4\u547d\u9519\u8bef\u5e76\u9000\u51fa\u4e86\u3002\u6240\u4ee5PHP\u7a0b\u5e8f\u4e2d\u9700\u8981\u65ad\u7ebf\u91cd\u8fde\u3002<\/p>\n
\u6709\u5f88\u591a\u4eba\u63d0\u51fa\u4e86mysql_ping\u7684\u65b9\u6848\uff0c\u6bcf\u6b21mysql_query\u8fdb\u884c\u8fde\u63a5\u68c0\u6d4b\u6216\u8005\u5b9a\u65f6\u8fde\u63a5\u68c0\u6d4b\u3002\u8fd9\u4e2a\u65b9\u6848\u4e0d\u662f\u6700\u597d\u7684\u3002\u539f\u56e0\u662f<\/p>\n
mysql_ping\u9700\u8981\u4e3b\u52a8\u4fa6\u6d4b\u8fde\u63a5\uff0c\u5e26\u6765\u4e86\u989d\u5916\u7684\u6d88\u8017\n\u5b9a\u65f6\u6267\u884cmysql_ping\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\uff0c\u5982\u521a\u521a\u6267\u884c\u8fc7mysql_ping\u68c0\u6d4b\u4e4b\u540e\uff0c\u8fde\u63a5\u5c31\u5173\u95ed\u4e86<\/code><\/pre>\n
\u6700\u4f73\u7684\u65b9\u6848\u662f\u8fdb\u884c\u65ad\u7ebf\u91cd\u8fde \u3002\u5b83\u7684\u539f\u7406\u662f\uff1a<\/p>\n
(Swoole\\Coroutine\\Mysql\u548cPDO\u7b49\u5176\u4ed6\u5ba2\u6237\u7aef\u540c\u7406, \u6b64\u5904\u7b80\u5355\u4e3e\u4f8b)<\/p>\n
mysql_query\u6267\u884c\u540e\u68c0\u6d4b\u8fd4\u56de\u503c\n\u5982\u679cmysql_query\u8fd4\u56de\u5931\u8d25\uff0c\u68c0\u6d4b\u9519\u8bef\u7801\u53d1\u73b0\u4e3a2006\/2013\uff08\u8fd92\u4e2a\u9519\u8bef\u8868\u793a\u8fde\u63a5\u5931\u8d25\uff09\uff0c\u518d\u6267\u884c\u4e00\u6b21mysql_connect\n\u6267\u884cmysql_connect\u540e\uff0c\u91cd\u65b0\u6267\u884cmysql_query\uff0c\u8fd9\u65f6\u5fc5\u7136\u4f1a\u6210\u529f\uff0c\u56e0\u4e3a\u5df2\u7ecf\u91cd\u65b0\u5efa\u7acb\u4e86\u8fde\u63a5\n\u5982\u679cmysql_query\u8fd4\u56de\u6210\u529f\uff0c\u90a3\u4e48\u8fde\u63a5\u662f\u6709\u6548\u7684\uff0c\u8fd9\u662f\u4e00\u6b21\u6b63\u5e38\u7684\u8c03\u7528<\/code><\/pre>\n
1.3\u3001MySQL\u5f02\u6b65<\/h2>\n
MySQL\u5f02\u6b65\u662f\u6307\u5c06MySQL\u8fde\u63a5\u4e8b\u4ef6\u9a71\u52a8\u5316\uff0c\u8fd9\u6837\u5c31\u53d8\u6210\u4e86\u975e\u963b\u585eIO\u3002\u6570\u636e\u5e93\u64cd\u4f5c\u5e76\u4e0d\u4f1a\u963b\u585e\u8fdb\u7a0b\uff0c\u5728MySQL-Server\u8fd4\u56de\u7ed3\u679c\u65f6\u518d\u6267\u884c\u5bf9\u5e94\u7684\u903b\u8f91\u3002<\/p>\n
\u6709\u51e0\u4e2a\u70b9\u9700\u8981\u6ce8\u610f\u4e00\u4e0b\uff1a<\/p>\n
\u5f02\u6b65MySQL\u5e76\u6ca1\u6709\u8282\u7701SQL\u6267\u884c\u7684\u65f6\u95f4\n\u4e00\u4e2aMySQL\u8fde\u63a5\u540c\u65f6\u53ea\u80fd\u6267\u884c1\u4e2aSQL\uff0c\u5982\u679c\u5f02\u6b65MySQL\u5b58\u5728\u5e76\u53d1\u90a3\u4e48\u5fc5\u987b\u521b\u5efa\u591a\u4e2aMySQL\u8fde\u63a5<\/code><\/pre>\n
\u5f02\u6b65\u56de\u8c03\u7a0b\u5e8f\u4e2d\uff0c\u5f02\u6b65MySQL\u5e76\u6ca1\u6709\u63d0\u5347\u6027\u80fd\u3002\u5f02\u6b65\u6700\u5927\u7684\u597d\u5904\u662f\u53ef\u4ee5\u9ad8\u5e76\u53d1\uff0c\u5982\u679c\u5e76\u53d11\u4e07\u4e2a\u8bf7\u6c42\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5efa\u7acb1\u4e07\u4e2aMySQL\u8fde\u63a5\uff0c\u8fd9\u4f1a\u7ed9MySQL-Server\u5e26\u6765\u5de8\u5927\u7684\u538b\u529b\u3002<\/p>\n
MySQL\u662f\u6839\u636e\u8fde\u63a5\u6570\u5206\u914d\u8d44\u6e90\u7684\uff0c\u4e00\u4e2a\u8fde\u63a5\u9700\u8981\u5f00\u542f\u4e00\u4e2a\u7ebf\u7a0b\u30021000\u8fde\u63a5\u90a3\u4e48\u9700\u8981\u7ef4\u63011000\u7ebf\u7a0b\u624d\u53ef\u4ee5\u3002\u7ebf\u7a0b\u6570\u91cf\u589e\u52a0\u540e\uff0c\u7ebf\u7a0b\u95f4\u5207\u6362\u4f1a\u5360\u7528\u5927\u91cfCPU\u8d44\u6e90\nMySQL\u77ed\u8fde\u63a5\u53cd\u800c\u4e0d\u4f1a\u51fa\u73b0\u6b64\u95ee\u9898\uff0c\u56e0\u4e3a\u77ed\u8fde\u63a5\u5728\u4f7f\u7528\u5b8c\u540e\u5c31\u91ca\u653e\u4e86\u3002\u4e0d\u4f1a\u5360\u7528MySQL-Server\u7684\u8fde\u63a5\u8d44\u6e90<\/code><\/pre>\n
\u867d\u7136\u5e94\u7528\u5c42\u4ee3\u7801\u4f7f\u7528\u5f02\u6b65\u56de\u8c03\u907f\u514d\u4e86\u81ea\u8eab\u7684\u963b\u585e\uff0c\u5b9e\u9645\u4e0a\u771f\u6b63\u7684\u74f6\u9888\u662f\u6570\u636e\u5e93\u670d\u52a1\u5668\u3002\u5f02\u6b65MySQL\u8fd8\u5e26\u6765\u4e86\u989d\u5916\u7684\u7f16\u7a0b\u590d\u6742\u5ea6\uff0c\u6240\u4ee5\u9664\u975e\u662f\u7279\u6b8a\u573a\u666f\u7684\u9700\u6c42\uff0c\u5426\u5219\u4e0d\u5efa\u8bae\u4f7f\u7528\u5f02\u6b65MySQL\u3002<\/p>\n
\u5982\u679c\u7a0b\u5e8f\u4e2d\u575a\u6301\u8981\u4f7f\u7528\u5f02\u6b65\uff0c\u90a3\u4e48\u5fc5\u987b\u662f\u5f02\u6b65MySQL+\u8fde\u63a5\u6c60\u7684\u5f62\u5f0f\u3002\u8d85\u8fc7\u89c4\u5b9a\u7684MySQL\u6700\u5927\u8fde\u63a5\u540e\uff0c\u5e94\u5f53\u5bf9SQL\u8bf7\u6c42\u8fdb\u884c\u6392\u961f\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u8fde\u63a5\uff0c\u907f\u514d\u5927\u91cf\u5e76\u53d1\u8bf7\u6c42\u5bfc\u81f4MySQL\u670d\u52a1\u5668\u5d29\u6e83\u3002<\/p>\n
1.4\u3001MySQL\u8fde\u63a5\u6c60<\/h2>\n
\u8fde\u63a5\u6c60\u662f\u53ef\u4ee5\u6709\u6548\u964d\u4f4eMySQL-Server\u8d1f\u8f7d\u7684\u3002\u539f\u7406\u662f \u8fde\u63a5\u6c60\u4f7f\u7528\u4e00\u4e2a\u5171\u4eab\u8d44\u6e90\u7684\u6a21\u5f0f\uff0c\u5982\u5e76\u53d1100\u4e2a\u8bf7\u6c42\uff0c\u5b9e\u9645\u4e0a\u5e76\u4e0d\u662f\u6bcf\u4e2a\u8bf7\u6c42\u7684\u6240\u6709\u65f6\u95f4\u90fd\u5728\u6267\u884cSQL\u67e5\u8be2\u3002\u8fd9\u6837100\u4e2a\u8bf7\u6c42\uff0c\u5171\u4eab20\u4e2aMySQL\u8fde\u63a5\u5c31\u53ef\u4ee5\u6ee1\u8db3\u9700\u6c42\u4e86\u3002\u5f53\u4e00\u4e2a\u8bf7\u6c42\u64cd\u4f5c\u5b8c\u6570\u636e\u5e93\u540e\uff0c\u5f00\u59cb\u8fdb\u5165\u6a21\u677f\u6e32\u67d3\u7b49\u6d41\u7a0b\uff0c\u8fd9\u65f6\u5c31\u4f1a\u91ca\u653e\u6570\u636e\u5e93\u8fde\u63a5\u7ed9\u5176\u4ed6\u7684\u8bf7\u6c42\u4f7f\u7528\u3002<\/p>\n
\u8fde\u63a5\u6c60\u4ec5\u5728\u8d85\u5927\u578b\u5e94\u7528\u4e2d\u624d\u6709\u4ef7\u503c\u3002\u666e\u901a\u7684\u5e94\u7528\u91c7\u7528MySQL\u957f\u8fde\u63a5\u65b9\u6848\uff0c\u6bcf\u4e2aphp-fpm\u521b\u5efa\u4e00\u4e2aMySQL\u8fde\u63a5\uff0c\u6bcf\u53f0\u673a\u5668\u5f00\u542f100\u4e2aphp-fpm\u8fdb\u7a0b\u3002\u5982\u679c\u670910\u53f0\u673a\u5668\uff0c\u6bcf\u53f0\u673a\u5668\u5e76\u53d1\u7684\u8bf7\u6c42\u4e3a100\u3002\u5b9e\u9645\u4e0a\u53ea\u9700\u8981\u521b\u5efa1000\u4e2aMySQL\u8fde\u63a5\u5c31\u80fd\u6ee1\u8db3\u9700\u6c42\uff0c\u6570\u636e\u5e93\u7684\u538b\u529b\u5e76\u4e0d\u5927\u3002\u5373\u4f7f\u6709100\u53f0\u673a\u5668\uff0c\u786c\u4ef6\u914d\u7f6e\u597d\u7684\u5b58\u50a8\u670d\u52a1\u5668\u4f9d\u7136\u53ef\u4ee5\u627f\u53d7\u3002<\/p>\n
\u8fbe\u5230\u6570\u767e\u6216\u8005\u6570\u5343\u53f0\u5e94\u7528\u670d\u52a1\u5668\u65f6\uff0cMySQL\u670d\u52a1\u5668\u5c31\u9700\u8981\u7ef4\u6301\u5341\u4e07\u7ea7\u7684\u8fde\u63a5\u3002\u8fd9\u65f6\u6570\u636e\u5e93\u7684\u538b\u529b\u5c31\u4f1a\u975e\u5e38\u5927\u4e86\u3002\u8fde\u63a5\u6c60\u6280\u672f\u5c31\u53ef\u4ee5\u6d3e\u4e0a\u7528\u573a\u4e86\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u6570\u636e\u5e93\u8fde\u63a5\u6570\u3002<\/p>\n
1.5\u3001\u540c\u6b65\u963b\u585e\u6a21\u5f0f<\/h2>\n
\u53ef\u57fa\u4e8eswoole\u7684AsyncTask\u6a21\u5757\u5b9e\u73b0\u7684\u8fde\u63a5\u6c60\uff0c\u7f16\u7a0b\u7b80\u5355\uff0c\u6ca1\u6709\u6570\u636e\u540c\u6b65\u548c\u9501\u7684\u95ee\u9898\u3002\u751a\u81f3\u53ef\u4ee5\u591a\u4e2a\u670d\u52a1\u5171\u4eab\u8fde\u63a5\u6c60\u3002\u7f3a\u70b9\u662f\uff1a 1. \u7075\u6d3b\u6027\u4e0d\u5982\u591a\u7ebf\u7a0b\u8fde\u63a5\u6c60\uff0c\u65e0\u6cd5\u52a8\u6001\u589e\u51cf\u8fde\u63a5 2. \u6709\u4e00\u6b21\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5f00\u9500
\n\u534f\u7a0b\u6a21\u5f0f<\/p>\n
\u53ef\u4f7f\u7528channel\u5b9e\u73b0\u8fde\u63a5\u6c60\u3002<\/p>\n
\u4e8c\u3001mysql\u8fde\u63a5\u6c60<\/h1>\n
2.1\u3001\u4ec0\u4e48\u662fmysql\u8fde\u63a5\u6c60<\/h2>\n
\u6570\u636e\u5e93\u8fde\u63a5\u6c60\uff08Connection pooling\uff09\u662f\u7a0b\u5e8f\u542f\u52a8\u65f6\u5efa\u7acb\u8db3\u591f\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u5e76\u5c06\u8fd9\u4e9b\u8fde\u63a5\u7ec4\u6210\u4e00\u4e2a\u8fde\u63a5\u6c60\uff0c\u7531\u7a0b\u5e8f\u52a8\u6001\u5730\u5bf9\u6c60\u4e2d\u7684\u8fde\u63a5\u8fdb\u884c\u7533\u8bf7\uff0c\u4f7f\u7528\uff0c\u91ca\u653e\u3002<\/p>\n
2.2\u3001\u4e3a\u4ec0\u4e48\u9700\u8981mysql\u8fde\u63a5\u6c60<\/h2>\n
\u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\u662f\u4e00\u4e2a\u5f88\u8017\u65f6\u7684\u64cd\u4f5c\uff0cMySQL\u77ed\u8fde\u63a5\u6bcf\u6b21\u8bf7\u6c42\u64cd\u4f5c\u6570\u636e\u5e93\u90fd\u9700\u8981\u5efa\u7acb\u4e0eMySQL\u670d\u52a1\u5668\u5efa\u7acbTCP\u8fde\u63a5\uff0c\u8fd9\u662f\u9700\u8981\u65f6\u95f4\u5f00\u9500\u7684\uff0cTCP\u8fde\u63a5\u9700\u89813\u6b21\u7f51\u7edc\u901a\u4fe1\u3002\u8fd9\u6837\u5c31\u589e\u52a0\u4e86\u4e00\u5b9a\u7684\u5ef6\u65f6\u548c\u989d\u5916\u7684IO\u6d88\u8017\uff0c\u5728\u5e76\u53d1\u91cf\u975e\u5e38\u5927\u7684\u60c5\u51b5\u5c31\u4f1a\u6709\u5f71\u54cd<\/p>\n
\u5047\u8bbe\u6709100\u53f0PHP\u7684\u5e94\u7528\u670d\u52a1\u5668\uff0c\u6bcf\u4e2a\u673a\u5668\u9700\u8981\u542f\u52a8100\u4e2aapache\u6216fpm\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u90a3\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u4f1a\u4ea7\u751f\u4e00\u4e2a\u957f\u8fde\u63a5\u5230MySQL\u3002\u8fd9\u4e00\u5171\u4f1a\u4ea7\u751f1\u4e07\u4e2aMy SQL\u8fde\u63a5\u3002\u5927\u5bb6\u90fd\u77e5\u9053MySQL\u662f\u6bcf\u4e2a\u8fde\u63a5\u4f1a\u5360\u75281\u4e2a\u7ebf\u7a0b\u3002\u90a3MYSQL\u5c31\u9700\u8981\u521b\u5efa1\u4e07\u4e2a\u7ebf\u7a0b\uff0c\u8fd9\u6837\u5927\u91cf\u7684\u7cfb\u7edf\u8d44\u6e90\u88ab\u6d6a\u8d39\u5728\u7ebf\u7a0b\u95f4\u4e0a\u4e0b\u6587\u5207\u6362\u4e0a\u3002\u800c\u4f60\u7684\u4e1a\u52a1\u4ee3\u7801\u4e2d\u5e76\u4e0d\u662f\u6240\u6709\u5730\u65b9\u90fd\u5728\u505a\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u6240\u4ee5\u8fd9\u4e2a\u5c31\u662f\u6d6a\u8d39\u7684\u3002<\/p>\n
2.3\u3001\u5982\u4f55\u89e3\u51b3<\/h2>\n
\u5982\u679c\u6709\u8fde\u63a5\u6c60\u5c31\u4e0d\u540c\u4e86\uff0c\u5982\u5e76\u53d1100\u4e2a\u8bf7\u6c42\uff0c\u5b9e\u9645\u4e0a\u5e76\u4e0d\u662f\u6bcf\u4e2a\u8bf7\u6c42\u7684\u6240\u6709\u65f6\u95f4\u90fd\u5728\u6267\u884cSQL\u67e5\u8be2\u3002\u8fd9\u6837100\u4e2a\u8bf7\u6c42\uff0c\u5171\u4eab20\u4e2aMySQL\u8fde\u63a5\u5c31\u53ef\u4ee5\u6ee1\u8db3\u9700\u6c42\u4e86\u3002\u5f53\u4e00\u4e2a\u8bf7\u6c42\u64cd\u4f5c\u5b8c\u6570\u636e\u5e93\u540e\uff0c\u5f00\u59cb\u8fdb\u5165\u6a21\u677f\u6e32\u67d3\u7b49\u6d41\u7a0b\uff0c\u8fd9\u65f6\u5c31\u4f1a\u91ca\u653e\u6570\u636e\u5e93\u8fde\u63a5\u7ed9\u5176\u4ed6\u7684\u8bf7\u6c42\u4f7f\u7528\u3002<\/p>\n
2.4\u3001\u9002\u5408\u573a\u666f<\/h2>\n
\u8fde\u63a5\u6c60\u4ec5\u5728\u8d85\u5927\u578b\u5e94\u7528\u4e2d\u624d\u6709\u4ef7\u503c\uff0c\u8fde\u63a5\u6c60\u5e76\u6ca1\u6709\u63d0\u9ad8sql\u7684\u67e5\u8be2\u901f\u5ea6\uff0c\u8fde\u63a5\u6c60\u662f\u7528\u6765\u4fdd\u62a4\u6570\u636e\u5e93\u7684,\u9650\u5236\u8fde\u63a5\u6570,\u4e3a\u4e86\u907f\u514d\u8fde\u63a5\u8fc7\u591a\u5bfc\u81f4\u6570\u636e\u5e93\u5d29\u6e83\uff0c\u4e0d\u662f\u7528\u6765\u63d0\u5347\u6027\u80fd\u7684
\n\u5efa\u7acb\u8fde\u63a5—-\u6267\u884c\u4e1a\u52a1\u903b\u8f91—–\u9500\u6bc1
\n\u957f\u8fde\u63a5\u6027\u80fd\u662f\u4f18\u4e8e\u77ed\u8fde\u63a5,\u4e0d\u9700\u8981\u91cd\u590d\u7684\u53bb\u5efa\u7acb\u8fde\u63a5,\u5e38\u9a7b\u5185\u5b58\u8981\u590d\u7528\u8fde\u63a5
\n\u666e\u901a\u7684\u5e94\u7528\u91c7\u7528MySQL\u957f\u8fde\u63a5\u65b9\u6848\uff0c\u6bcf\u4e2aworker\u521b\u5efa\u4e00\u4e2aMySQL\u8fde\u63a5\uff0c\u6bcf\u53f0\u673a\u5668\u5f00\u542f100\u4e2aworker\u8fdb\u7a0b\u3002\u5982\u679c\u670910\u53f0\u673a\u5668\uff0c\u6bcf\u53f0\u673a\u5668\u5e76\u53d1\u7684\u8bf7\u6c42\u4e3a100\u3002\u5b9e\u9645\u4e0a\u53ea\u9700\u8981\u521b\u5efa1000\u4e2aMySQL\u8fde\u63a5\u5c31\u80fd\u6ee1\u8db3\u9700\u6c42\uff0c\u6570\u636e\u5e93\u7684\u538b\u529b\u5e76\u4e0d\u5927\u3002\u5373\u4f7f\u6709100\u53f0\u673a\u5668\uff0c\u786c\u4ef6\u914d\u7f6e\u597d\u7684\u5b58\u50a8\u670d\u52a1\u5668\u4f9d\u7136\u53ef\u4ee5\u627f\u53d7\u3002
\n\u8fbe\u5230\u6570\u767e\u6216\u8005\u6570\u5343\u53f0\u5e94\u7528\u670d\u52a1\u5668\u65f6\uff0cMySQL\u670d\u52a1\u5668\u5c31\u9700\u8981\u7ef4\u6301\u5341\u4e07\u7ea7\u7684\u8fde\u63a5\u3002\u8fd9\u65f6\u6570\u636e\u5e93\u7684\u538b\u529b\u5c31\u4f1a\u975e\u5e38\u5927\u4e86\u3002\u8fde\u63a5\u6c60\u6280\u672f\u5c31\u53ef\u4ee5\u6d3e\u4e0a\u7528\u573a\u4e86\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u6570\u636e\u5e93\u8fde\u63a5\u6570,\u51cf\u5165\u670d\u52a1\u5668\u538b\u529b\u3002<\/p>\n
2.5 mysql\u8fde\u63a5\u6c60\u521b\u5efa<\/h2>\n
\u6570\u636e\u7684\u8fde\u63a5\u6c60\u4e3a\u7ef4\u6301\u82e5\u5e72\u4e2a\u957f\u8fde\u63a5\uff0c\u5f53\u65b0\u8bf7\u6c42\u5230\u8fbe\u7684\u65f6\u5019\uff0c\u5982\u679c\u8fde\u63a5\u6c60\u6709\u7a7a\u95f2\u8fde\u63a5\uff0c\u5c31\u5206\u914d\u7ed9\u8fde\u63a5\u6c60\u53bb\u5904\u7406\uff0c\u5426\u5219\uff0c\u540e\u9762\u7684\u6570\u636e\u5e93\u8fde\u63a5\u8bf7\u6c42\u5c06\u88ab\u52a0\u5165\u5230\u7b49\u5f85\u961f\u5217\u4e2d\u3002
\n\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u7684\u673a\u5236\uff1a
\n\uff081\uff09\u7a0b\u5e8f\u521d\u59cb\u5316\u65f6\u521b\u5efa\u8fde\u63a5\u6c60
\n\uff082\uff09\u4f7f\u7528\u65f6\u5411\u8fde\u63a5\u6c60\u7533\u8bf7\u53ef\u7528\u8fde\u63a5
\n\uff083\uff09\u4f7f\u7528\u5b8c\u6bd5\uff0c\u5c06\u8fde\u63a5\u8fd4\u8fd8\u7ed9\u8fde\u63a5\u6c60
\n\uff084\uff09\u7a0b\u5e8f\u9000\u51fa\u65f6\uff0c\u65ad\u5f00\u8fde\u63a5\uff0c\u5e76\u91ca\u653e\u8d44\u6e90
\n
\"file\"<\/div>
\n\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u8bbe\u8ba1
\n\u8fde\u63a5\u6c60\u4e2d\u5230\u5e95\u5e94\u8be5\u653e\u7f6e\u591a\u5c11\u8fde\u63a5\uff0c\u624d\u80fd\u4f7f\u7cfb\u7edf\u7684\u6027\u80fd\u6700\u4f73
\n1\u3001\u6700\u5c0f\u8fde\u63a5\u6570:
\n\u662f\u8fde\u63a5\u6c60\u4e00\u76f4\u4fdd\u6301\u7684\u6570\u636e\u5e93\u8fde\u63a5,\u6240\u4ee5\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u5bf9\u6570\u636e\u5e93\u8fde\u63a5\u7684\u4f7f\u7528\u91cf\u4e0d\u5927,\u5c06\u4f1a\u6709\u5927\u91cf\u7684\u6570\u636e\u5e93\u8fde\u63a5\u8d44\u6e90\u88ab\u6d6a\u8d39.<\/p>\n
2\u3001 \u6700\u5927\u8fde\u63a5\u6570:
\n\u662f\u8fde\u63a5\u6c60\u80fd\u7533\u8bf7\u7684\u6700\u5927\u8fde\u63a5\u6570,\u5982\u679c\u6570\u636e\u5e93\u8fde\u63a5\u8bf7\u6c42\u8d85\u8fc7\u6b21\u6570,\u540e\u9762\u7684\u6570\u636e\u5e93\u8fde\u63a5\u8bf7\u6c42\u5c06\u88ab\u52a0\u5165\u5230\u7b49\u5f85\u961f\u5217\u4e2d,\u8fd9\u4f1a\u5f71\u54cd\u4ee5\u540e\u7684\u6570\u636e\u5e93\u64cd\u4f5c<\/p>\n
3\u3001\u8fde\u63a5\u6c60\u7684\u914d\u7f6e\u4e0e\u7ef4\u62a4
\n\u5982\u4f55\u786e\u4fdd\u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5c0f\u8fde\u63a5\u6570\u5462\uff1f\u6709\u52a8\u6001\u548c\u9759\u6001\u4e24\u79cd\u7b56\u7565\u3002\u52a8\u6001\u5373\u6bcf\u9694\u4e00\u5b9a\u65f6\u95f4\u5c31\u5bf9\u8fde\u63a5\u6c60\u8fdb\u884c\u68c0\u6d4b\uff0c\u5982\u679c\u53d1\u73b0\u8fde\u63a5\u6570\u91cf\u5c0f\u4e8e\u6700\u5c0f\u8fde\u63a5\u6570\uff0c\u5219\u8865\u5145\u76f8\u5e94\u6570\u91cf\u7684\u65b0\u8fde\u63a5,\u4ee5\u4fdd\u8bc1\u8fde\u63a5\u6c60\u7684\u6b63\u5e38\u8fd0\u8f6c\u3002\u9759\u6001\u662f\u53d1\u73b0\u7a7a\u95f2\u8fde\u63a5\u4e0d\u591f\u65f6\u518d\u53bb\u68c0\u67e5\u3002<\/p>\n
4\u3001\u7b49\u5f85\u961f\u5217
\nSQL\u8bf7\u6c42\u5230\u8fbe\u65f6\u5982\u679c\u6ca1\u6709\u7a7a\u95f2\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u90a3\u4f1a\u81ea\u52a8\u52a0\u5165\u5230\u7b49\u5f85\u961f\u5217\u5f53\u4e2d\u3002\u4e00\u65e6\u6709SQL\u5b8c\u6210\u64cd\u4f5c\uff0c\u5c06\u81ea\u52a8\u4ece\u7b49\u5f85\u961f\u5217\u4e2d\u53d6\u51fa\u7b49\u5f85\u7684\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002<\/p>\n
\u7a0b\u5e8f\u7684\u903b\u8f91\uff1a
\n1\u3001\u542f\u52a8\u65f6\u521b\u5efaN\u4e2aMySQL\u8fde\u63a5\uff0c\u6536\u5230\u5ba2\u6237\u7aef\u53d1\u6765\u7684SQL\u540e\uff0c\u5206\u914d1\u4e2aMySQL\u8fde\u63a5\uff0c\u5c06SQL\u53d1\u5f80\u6570\u636e\u5e93\u670d\u52a1\u5668\u3002\u7136\u540e\u7b49\u5f85\u6570\u636e\u5e93\u8fd4\u56de\u67e5\u8be2\u7ed3\u679c\u3002\u5f53\u6570\u636e\u5e93\u8fd4\u56de\u7ed3\u679c\u540e\uff0c\u518d\u53d1\u7ed9\u5bf9\u5e94\u7684\u5ba2\u6237\u7aef\u8fde\u63a5\u3002
\n2\u3001\u6838\u5fc3\u7684\u6570\u636e\u7ed3\u6784\u662f3\u4e2aPHP\u961f\u5217\u7ed3\u6784\u3002idle_pool\u662f\u7a7a\u95f2\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u5f53\u6709SQL\u8bf7\u6c42\u65f6,\u4eceidle_pool\u4e2d\u79fb\u5230worker_pool\u4e2d\u3002\u5f53\u6570\u636e\u5e93\u8fd4\u56de\u7ed3\u679c\u540e\u4eceworker_pool\u4e2d\u518d\u79fb\u5230idle_pool\u4e2d\uff0c\u4ee5\u4f9b\u65b0\u7684\u8bf7\u6c42\u4f7f\u7528\u3002\u5f53SQL\u8bf7\u6c42\u5230\u8fbe\u65f6\u5982\u679c\u6ca1\u6709\u7a7a\u95f2\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u90a3\u4f1a\u81ea\u52a8\u52a0\u5165\u5230wait_queue\u4e2d\u3002\u4e00\u65e6\u6709SQL\u5b8c\u6210\u64cd\u4f5c\uff0c\u5c06\u81ea\u52a8\u4ecewait_queue\u4e2d\u53d6\u51fa\u7b49\u5f85\u7684\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b98\u65b9\u6587\u6863\uff1aMysql\u7684\u8fde\u63a5\u6c60\u3001\u5f02\u6b65\u3001\u65ad\u7ebf\u91cd\u8fde \u4e00\u3001Mysql\u7684\u8fde\u63a5\u6c60\u3001\u5f02\u6b65\u3001\u65ad\u7ebf\u91cd\u8fde\uff08\u6765\u81ea\u5b98\u7f51\uff09 1.1\u3001My […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,76,97],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6991"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6991"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/6991\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}