{"id":1676,"date":"2022-11-23T23:05:09","date_gmt":"2022-11-23T15:05:09","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1676"},"modified":"2022-11-27T12:40:57","modified_gmt":"2022-11-27T04:40:57","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93%e8%b0%83%e4%bc%98%e6%95%b4%e4%bd%93%e6%ad%a5%e9%aa%a4%e3%80%81%e4%bc%98%e5%8c%96mysql%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%a1%ac%e4%bb%b6%e5%92%8c%e5%8f%82%e6%95%b0%e3%80%81","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1676","title":{"rendered":"\u6570\u636e\u5e93\u8c03\u4f18\u6574\u4f53\u6b65\u9aa4\u3001\u4f18\u5316MySQL\u670d\u52a1\u5668\u786c\u4ef6\u548c\u53c2\u6570\u3001\u6570\u636e\u5e93\u7ed3\u6784\u4f18\u5316\u3001\u5927\u8868\u4f18\u5316\u3001\u5176\u5b833\u4e2a\u7b56\u7565"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code># \u7b2c12\u7ae0_\u6570\u636e\u5e93\u5176\u5b83\u8c03\u4f18\u7b56\u7565\r\n\r\n#08-\u6570\u636e\u5e93\u7684\u5176\u4ed6\u4f18\u5316\u7b56\u7565\r\n\r\n# 1. \u6570\u636e\u5e93\u8c03\u4f18\u7684\u63aa\u65bd\r\n\r\n# 1.1 \u8c03\u4f18\u7684\u76ee\u6807\r\n# \u5c3d\u53ef\u80fd \u8282\u7701\u7cfb\u7edf\u8d44\u6e90 \uff0c\u4ee5\u4fbf\u7cfb\u7edf\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5927\u8d1f\u8377\u7684\u670d\u52a1\u3002\uff08\u541e\u5410\u91cf\u66f4\u5927\uff09\r\n# \u5408\u7406\u7684\u7ed3\u6784\u8bbe\u8ba1\u548c\u53c2\u6570\u8c03\u6574\uff0c\u4ee5\u63d0\u9ad8\u7528\u6237\u64cd\u4f5c \u54cd\u5e94\u7684\u901f\u5ea6 \u3002\uff08\u54cd\u5e94\u901f\u5ea6\u66f4\u5feb\uff09\r\n# \u51cf\u5c11\u7cfb\u7edf\u7684\u74f6\u9888\uff0c\u63d0\u9ad8MySQL\u6570\u636e\u5e93\u6574\u4f53\u7684\u6027\u80fd\u3002\r\n\r\n# 1.2 \u5982\u4f55\u5b9a\u4f4d\u8c03\u4f18\u95ee\u9898\r\n# \u5982\u4f55\u786e\u5b9a\u5462\uff1f\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u6709\u5982\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a\r\n# \u7528\u6237\u7684\u53cd\u9988\uff08\u4e3b\u8981\uff09\r\n# \u65e5\u5fd7\u5206\u6790\uff08\u4e3b\u8981\uff09\r\n# \u670d\u52a1\u5668\u8d44\u6e90\u4f7f\u7528\u76d1\u63a7\r\n# \u6570\u636e\u5e93\u5185\u90e8\u72b6\u51b5\u76d1\u63a7\r\n# \u5176\u5b83\r\n\r\n# \u9664\u4e86\u6d3b\u52a8\u4f1a\u8bdd\u76d1\u63a7\u4ee5\u5916\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u5bf9 \u4e8b\u52a1 \u3001 \u9501\u7b49\u5f85 \u7b49\u8fdb\u884c\u76d1\u63a7\uff0c\r\n# \u8fd9\u4e9b\u90fd\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5bf9\u6570\u636e\u5e93\u7684\u8fd0\u884c\u72b6\u6001\u6709\u66f4\u5168\u9762\u7684\u8ba4\u8bc6\u3002\r\n\r\n# 1.4 \u8c03\u4f18\u7684\u7ef4\u5ea6\u548c\u6b65\u9aa4\r\n# \u6211\u4eec\u9700\u8981\u8c03\u4f18\u7684\u5bf9\u8c61\u662f\u6574\u4e2a\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5b83\u4e0d\u4ec5\u5305\u62ec SQL \u67e5\u8be2\uff0c\u8fd8\u5305\u62ec\u6570\u636e\u5e93\u7684\u90e8\u7f72\u914d\u7f6e\u3001\u67b6\u6784\u7b49\u3002\r\n# \u4ece\u8fd9\u4e2a\u89d2\u5ea6\u6765\u8bf4\uff0c\u6211\u4eec\u601d\u8003\u7684\u7ef4\u5ea6\u5c31\u4e0d\u4ec5\u4ec5\u5c40\u9650\u5728 SQL \u4f18\u5316\u4e0a\u4e86\u3002\u901a\u8fc7\u5982\u4e0b\u7684\u6b65\u9aa4\u6211\u4eec\u8fdb\u884c\u68b3\u7406\uff1a\r\n# \u7b2c1\u6b65\uff1a\u9009\u62e9\u9002\u5408\u7684 DBMS\r\n# \u7b2c2\u6b65\uff1a\u4f18\u5316\u8868\u8bbe\u8ba1\r\n# \u7b2c3\u6b65\uff1a\u4f18\u5316\u903b\u8f91\u67e5\u8be2\r\n# \u7b2c4\u6b65\uff1a\u4f18\u5316\u7269\u7406\u67e5\u8be2\r\n# \u7b2c5\u6b65\uff1a\u4f7f\u7528 Redis \u6216 Memcached \u4f5c\u4e3a\u7f13\u5b58\r\n# \u7b2c6\u6b65\uff1a\u5e93\u7ea7\u4f18\u5316\r\n# 1\u3001\u8bfb\u5199\u5206\u79bb\r\n# 2\u3001\u6570\u636e\u5206\u7247\r\n\r\n# 2. \u4f18\u5316MySQL\u670d\u52a1\u5668\r\n\r\n# 2.1 \u4f18\u5316\u670d\u52a1\u5668\u786c\u4ef6\r\n# \u670d\u52a1\u5668\u7684\u786c\u4ef6\u6027\u80fd\u76f4\u63a5\u51b3\u5b9a\u7740MySQL\u6570\u636e\u5e93\u7684\u6027\u80fd\u3002\r\n# \u786c\u4ef6\u7684\u6027\u80fd\u74f6\u9888\u76f4\u63a5\u51b3\u5b9aMySQL\u6570\u636e\u5e93\u7684\u8fd0\u884c\u901f\u5ea6\u548c\u6548\u7387\u3002\r\n# \u9488\u5bf9\u6027\u80fd\u74f6\u9888\u63d0\u9ad8\u786c\u4ef6\u914d\u7f6e\uff0c\u53ef\u4ee5\u63d0\u9ad8MySQL\u6570\u636e\u5e93\u67e5\u8be2\u3001\u66f4\u65b0\u7684\u901f\u5ea6\u3002\r\n# \uff081\uff09 \u914d\u7f6e\u8f83\u5927\u7684\u5185\u5b58\r\n# \uff082\uff09 \u914d\u7f6e\u9ad8\u901f\u78c1\u76d8\u7cfb\u7edf\r\n# \uff083\uff09 \u5408\u7406\u5206\u5e03\u78c1\u76d8I\/O\r\n# \uff084\uff09 \u914d\u7f6e\u591a\u5904\u7406\u5668\r\n\r\n# 2.2 \u4f18\u5316MySQL\u7684\u53c2\u6570\r\n\r\n# innodb_buffer_pool_size \uff1a\u8fd9\u4e2a\u53c2\u6570\u662fMysql\u6570\u636e\u5e93\u6700\u91cd\u8981\u7684\u53c2\u6570\u4e4b\u4e00\uff0c\r\n# \u8868\u793aInnoDB\u7c7b\u578b\u7684 \u8868\u548c\u7d22\u5f15\u7684\u6700\u5927\u7f13\u5b58 \u3002\u5b83\u4e0d\u4ec5\u4ec5\u7f13\u5b58 \u7d22\u5f15\u6570\u636e \uff0c\u8fd8\u4f1a\u7f13\u5b58 \u8868\u7684\u6570\u636e \u3002\r\n# \u8fd9\u4e2a\u503c\u8d8a\u5927\uff0c\u67e5\u8be2\u7684\u901f\u5ea6\u5c31\u4f1a\u8d8a\u5feb\u3002\u4f46\u662f\u8fd9\u4e2a\u503c\u592a\u5927\u4f1a\u5f71\u54cd\u64cd\u4f5c\u7cfb\u7edf\u7684\u6027\u80fd\u3002\r\n\r\n# key_buffer_size \uff1a\u8868\u793a \u7d22\u5f15\u7f13\u51b2\u533a\u7684\u5927\u5c0f \u3002\u7d22\u5f15\u7f13\u51b2\u533a\u662f\u6240\u6709\u7684 \u7ebf\u7a0b\u5171\u4eab \u3002\r\n# \u589e\u52a0\u7d22\u5f15\u7f13\u51b2\u533a\u53ef\u4ee5\u5f97\u5230\u66f4\u597d\u5904\u7406\u7684\u7d22\u5f15\uff08\u5bf9\u6240\u6709\u8bfb\u548c\u591a\u91cd\u5199\uff09\u3002\u5f53\u7136\uff0c\u8fd9\u4e2a\u503c\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\uff0c\r\n# \u5b83\u7684\u5927\u5c0f\u53d6\u51b3\u4e8e\u5185\u5b58\u7684\u5927\u5c0f\u3002\u5982\u679c\u8fd9\u4e2a\u503c\u592a\u5927\uff0c\u5c31\u4f1a\u5bfc\u81f4\u64cd\u4f5c\u7cfb\u7edf\u9891\u7e41\u6362\u9875\uff0c\u4e5f\u4f1a\u964d\u4f4e\u7cfb\u7edf\u6027\u80fd\u3002\r\n# \u5bf9\u4e8e\u5185\u5b58\u5728 4GB \u5de6\u53f3\u7684\u670d\u52a1\u5668\u8be5\u53c2\u6570\u53ef\u8bbe\u7f6e\u4e3a 256M \u6216 384M \u3002\r\n\r\n# table_cache \uff1a\u8868\u793a \u540c\u65f6\u6253\u5f00\u7684\u8868\u7684\u4e2a\u6570 \u3002\u8fd9\u4e2a\u503c\u8d8a\u5927\uff0c\u80fd\u591f\u540c\u65f6\u6253\u5f00\u7684\u8868\u7684\u4e2a\u6570\u8d8a\u591a\u3002\u7269\u7406\u5185\u5b58\u8d8a\u5927\uff0c\r\n# \u8bbe\u7f6e\u5c31\u8d8a\u5927\u3002\u9ed8\u8ba4\u4e3a2402\uff0c\u8c03\u5230512-1024\u6700\u4f73\u3002\u8fd9\u4e2a\u503c\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\uff0c\r\n# \u56e0\u4e3a\u540c\u65f6\u6253\u5f00\u7684\u8868\u592a\u591a\u4f1a\u5f71\u54cd\u64cd\u4f5c\u7cfb\u7edf\u7684\u6027\u80fd\u3002\r\n\r\n# query_cache_size \uff1a\u8868\u793a \u67e5\u8be2\u7f13\u51b2\u533a\u7684\u5927\u5c0f \u3002\u53ef\u4ee5\u901a\u8fc7\u5728MySQL\u63a7\u5236\u53f0\u89c2\u5bdf\uff0c\r\n# \u5982\u679cQcache_lowmem_prunes\u7684\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u7ecf\u5e38\u51fa\u73b0\u7f13\u51b2\u4e0d\u591f\u7684\u60c5\u51b5\uff0c\u5c31\u8981\u589e\u52a0Query_cache_size\u7684\u503c\uff1b\r\n# \u5982\u679cQcache_hits\u7684\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u67e5\u8be2\u7f13\u51b2\u4f7f\u7528\u975e\u5e38\u9891\u7e41\uff0c\u5982\u679c\u8be5\u503c\u8f83\u5c0f\u53cd\u800c\u4f1a\u5f71\u54cd\u6548\u7387\uff0c\r\n# \u90a3\u4e48\u53ef\u4ee5\u8003\u8651\u4e0d\u7528\u67e5\u8be2\u7f13\u5b58\uff1bQcache_free_blocks\uff0c\u5982\u679c\u8be5\u503c\u975e\u5e38\u5927\uff0c\u5219\u8868\u660e\u7f13\u51b2\u533a\u4e2d\u788e\u7247\u5f88\u591a\u3002\r\n# MySQL8.0\u4e4b\u540e\u5931\u6548\u3002\u8be5\u53c2\u6570\u9700\u8981\u548cquery_cache_type\u914d\u5408\u4f7f\u7528\u3002\r\n\r\n# query_cache_type \u7684\u503c\u662f0\u65f6\uff0c\u6240\u6709\u7684\u67e5\u8be2\u90fd\u4e0d\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u3002\r\n# \u4f46\u662fquery_cache_type=0\u5e76\u4e0d\u4f1a\u5bfc\u81f4MySQL\u91ca\u653equery_cache_size\u6240\u914d\u7f6e\u7684\u7f13\u5b58\u533a\u5185\u5b58\u3002\r\n#     \u5f53query_cache_type=1\u65f6\uff0c\u6240\u6709\u7684\u67e5\u8be2\u90fd\u5c06\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\uff0c\u9664\u975e\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u6307\u5b9aSQL_NO_CACHE \uff0c\r\n# \u5982SELECT SQL_NO_CACHE * FROM tbl_name\u3002\r\n#     \u5f53query_cache_type=2\u65f6\uff0c\u53ea\u6709\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u4f7f\u7528 SQL_CACHE \u5173\u952e\u5b57\uff0c\u67e5\u8be2\u624d\u4f1a\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u3002\r\n# \u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u533a\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u901f\u5ea6\uff0c\u8fd9\u79cd\u65b9\u5f0f\u53ea\u9002\u7528\u4e8e\u4fee\u6539\u64cd\u4f5c\u5c11\u4e14\u7ecf\u5e38\u6267\u884c\u76f8\u540c\u7684\u67e5\u8be2\u64cd\u4f5c\u7684\u60c5\u51b5\u3002\r\n\r\n# sort_buffer_size \uff1a\u8868\u793a\u6bcf\u4e2a \u9700\u8981\u8fdb\u884c\u6392\u5e8f\u7684\u7ebf\u7a0b\u5206\u914d\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f \u3002\r\n# \u589e\u52a0\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u53ef\u4ee5\u63d0\u9ad8 ORDER BY \u6216 GROUP BY \u64cd\u4f5c\u7684\u901f\u5ea6\u3002\u9ed8\u8ba4\u6570\u503c\u662f2 097 144\u5b57\u8282\uff08\u7ea62MB\uff09\u3002\r\n# \u5bf9\u4e8e\u5185\u5b58\u57284GB\u5de6\u53f3\u7684\u670d\u52a1\u5668\u63a8\u8350\u8bbe\u7f6e\u4e3a6-8M\uff0c\u5982\u679c\u6709100\u4e2a\u8fde\u63a5\uff0c\r\n# \u90a3\u4e48\u5b9e\u9645\u5206\u914d\u7684\u603b\u5171\u6392\u5e8f\u7f13\u51b2\u533a\u5927\u5c0f\u4e3a100 \u00d7 6\uff1d 600MB\u3002\r\n\r\n# join_buffer_size = 8M \uff1a\u8868\u793a \u8054\u5408\u67e5\u8be2\u64cd\u4f5c\u6240\u80fd\u4f7f\u7528\u7684\u7f13\u51b2\u533a\u5927\u5c0f \uff0c\u548csort_buffer_size\u4e00\u6837\uff0c\r\n# \u8be5\u53c2\u6570\u5bf9\u5e94\u7684\u5206\u914d\u5185\u5b58\u4e5f\u662f\u6bcf\u4e2a\u8fde\u63a5\u72ec\u4eab\u3002\r\n\r\n# read_buffer_size \uff1a\u8868\u793a \u6bcf\u4e2a\u7ebf\u7a0b\u8fde\u7eed\u626b\u63cf\u65f6\u4e3a\u626b\u63cf\u7684\u6bcf\u4e2a\u8868\u5206\u914d\u7684\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff08\u5b57\u8282\uff09 \u3002\r\n# \u5f53\u7ebf\u7a0b\u4ece\u8868\u4e2d\u8fde\u7eed\u8bfb\u53d6\u8bb0\u5f55\u65f6\u9700\u8981\u7528\u5230\u8fd9\u4e2a\u7f13\u51b2\u533a\u3002SET SESSION read_buffer_size=n\u53ef\u4ee5\u4e34\u65f6\u8bbe\u7f6e\u8be5\u53c2\u6570\u7684\u503c\u3002\r\n# \u9ed8\u8ba4\u4e3a64K\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a4M\u3002\r\n\r\n# innodb_flush_log_at_trx_commit \uff1a\u8868\u793a \u4f55\u65f6\u5c06\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6 \uff0c\u5e76\u4e14\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u4e2d\u3002\r\n# \u8be5\u53c2\u6570\u5bf9\u4e8einnoDB\u5f15\u64ce\u975e\u5e38\u91cd\u8981\u3002\u8be5\u53c2\u6570\u67093\u4e2a\u503c\uff0c\u5206\u522b\u4e3a0\u30011\u548c2\u3002\u8be5\u53c2\u6570\u7684\u9ed8\u8ba4\u503c\u4e3a1\u3002\r\n\r\n#     \u503c\u4e3a 0 \u65f6\uff0c\u8868\u793a \u6bcf\u79d21\u6b21 \u7684\u9891\u7387\u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5e76\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u3002\r\n# \u6bcf\u4e2a\u4e8b\u52a1\u7684commit\u5e76\u4e0d\u4f1a\u89e6\u53d1\u524d\u9762\u7684\u4efb\u4f55\u64cd\u4f5c\u3002\u8be5\u6a21\u5f0f\u901f\u5ea6\u6700\u5feb\uff0c\u4f46\u4e0d\u592a\u5b89\u5168\uff0c\r\n# mysqld\u8fdb\u7a0b\u7684\u5d29\u6e83\u4f1a\u5bfc\u81f4\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u7684\u4e22\u5931\u3002\r\n\r\n#     \u503c\u4e3a 1 \u65f6\uff0c\u8868\u793a \u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u65f6 \u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u5e76\u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u8fdb\u884c\u540c\u6b65\u3002\u8be5\u6a21\u5f0f\u662f\u6700\u5b89\u5168\u7684\uff0c\r\n# \u4f46\u4e5f\u662f\u6700\u6162\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u56e0\u4e3a\u6bcf\u6b21\u4e8b\u52a1\u63d0\u4ea4\u6216\u4e8b\u52a1\u5916\u7684\u6307\u4ee4\u90fd\u9700\u8981\u628a\u65e5\u5fd7\u5199\u5165\uff08flush\uff09\u786c\u76d8\u3002\r\n\r\n#     \u503c\u4e3a 2 \u65f6\uff0c\u8868\u793a \u6bcf\u6b21\u63d0\u4ea4\u4e8b\u52a1\u65f6 \u5c06\u6570\u636e\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\uff0c \u6bcf\u96941\u79d2 \u5c06\u65e5\u5fd7\u6587\u4ef6\u5199\u5165\u78c1\u76d8\u3002\u8be5\u6a21\u5f0f\u901f\u5ea6\u8f83\u5feb\uff0c\r\n# \u4e5f\u6bd40\u5b89\u5168\uff0c\u53ea\u6709\u5728\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u6216\u8005\u7cfb\u7edf\u65ad\u7535\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0a\u4e00\u79d2\u949f\u6240\u6709\u4e8b\u52a1\u6570\u636e\u624d\u53ef\u80fd\u4e22\u5931\u3002\r\n\r\n# innodb_log_buffer_size \uff1a\u8fd9\u662f InnoDB \u5b58\u50a8\u5f15\u64ce\u7684 \u4e8b\u52a1\u65e5\u5fd7\u6240\u4f7f\u7528\u7684\u7f13\u51b2\u533a \u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\r\n# \u4e5f\u662f\u5148\u5c06\u4fe1\u606f\u5199\u5165 Innodb Log Buffer \u4e2d\uff0c\r\n# \u5f53\u6ee1\u8db3 innodb_flush_log_trx_commit \u53c2\u6570\u6240\u8bbe\u7f6e\u7684\u76f8\u5e94\u6761\u4ef6\uff08\u6216\u8005\u65e5\u5fd7\u7f13\u51b2\u533a\u5199\u6ee1\uff09\u4e4b\u540e\uff0c\r\n# \u624d\u4f1a\u5c06\u65e5\u5fd7\u5199\u5230\u6587\u4ef6\uff08\u6216\u8005\u540c\u6b65\u5230\u78c1\u76d8\uff09\u4e2d\u3002\r\n\r\n# max_connections \uff1a\u8868\u793a \u5141\u8bb8\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93\u7684\u6700\u5927\u6570\u91cf \uff0c\u9ed8\u8ba4\u503c\u662f 151 \u3002\r\n# \u5982\u679c\u72b6\u6001\u53d8\u91cfconnection_errors_max_connections \u4e0d\u4e3a\u96f6\uff0c\u5e76\u4e14\u4e00\u76f4\u589e\u957f\uff0c\r\n# \u5219\u8bf4\u660e\u4e0d\u65ad\u6709\u8fde\u63a5\u8bf7\u6c42\u56e0\u6570\u636e\u5e93\u8fde\u63a5\u6570\u5df2\u8fbe\u5230\u5141\u8bb8\u6700\u5927\u503c\u800c\u5931\u8d25\uff0c\u8fd9\u662f\u53ef\u4ee5\u8003\u8651\u589e\u5927max_connections \u7684\u503c\u3002\r\n# \u5728Linux \u5e73\u53f0\u4e0b\uff0c\u6027\u80fd\u597d\u7684\u670d\u52a1\u5668\uff0c\u652f\u6301 500-1000 \u4e2a\u8fde\u63a5\u4e0d\u662f\u96be\u4e8b\uff0c\r\n# \u9700\u8981\u6839\u636e\u670d\u52a1\u5668\u6027\u80fd\u8fdb\u884c\u8bc4\u4f30\u8bbe\u5b9a\u3002\u8fd9\u4e2a\u8fde\u63a5\u6570 \u4e0d\u662f\u8d8a\u5927\u8d8a\u597d \uff0c\u56e0\u4e3a\u8fd9\u4e9b\u8fde\u63a5\u4f1a\u6d6a\u8d39\u5185\u5b58\u7684\u8d44\u6e90\u3002\r\n# \u8fc7\u591a\u7684\u8fde\u63a5\u53ef\u80fd\u4f1a\u5bfc\u81f4MySQL\u670d\u52a1\u5668\u50f5\u6b7b\u3002\r\n\r\n# back_log \uff1a\u7528\u4e8e \u63a7\u5236MySQL\u76d1\u542cTCP\u7aef\u53e3\u65f6\u8bbe\u7f6e\u7684\u79ef\u538b\u8bf7\u6c42\u6808\u5927\u5c0f \u3002\u5982\u679cMySql\u7684\u8fde\u63a5\u6570\u8fbe\u5230max_connections\u65f6\uff0c\r\n# \u65b0\u6765\u7684\u8bf7\u6c42\u5c06\u4f1a\u88ab\u5b58\u5728\u5806\u6808\u4e2d\uff0c\u4ee5\u7b49\u5f85\u67d0\u4e00\u8fde\u63a5\u91ca\u653e\u8d44\u6e90\uff0c\u8be5\u5806\u6808\u7684\u6570\u91cf\u5373back_log\uff0c\r\n# \u5982\u679c\u7b49\u5f85\u8fde\u63a5\u7684\u6570\u91cf\u8d85\u8fc7back_log\uff0c\u5c06\u4e0d\u88ab\u6388\u4e88\u8fde\u63a5\u8d44\u6e90\uff0c\u5c06\u4f1a\u62a5\u9519\u30025.6.6 \u7248\u672c\u4e4b\u524d\u9ed8\u8ba4\u503c\u4e3a 50 \uff0c\r\n# \u4e4b\u540e\u7684\u7248\u672c\u9ed8\u8ba4\u4e3a 50 + \uff08max_connections \/ 5\uff09\uff0c \u5bf9\u4e8eLinux\u7cfb\u7edf\u63a8\u8350\u8bbe\u7f6e\u4e3a\u5c0f\u4e8e512\u7684\u6574\u6570\uff0c\r\n# \u4f46\u6700\u5927\u4e0d\u8d85\u8fc7900\u3002\r\n# \u5982\u679c\u9700\u8981\u6570\u636e\u5e93\u5728\u8f83\u77ed\u7684\u65f6\u95f4\u5185\u5904\u7406\u5927\u91cf\u8fde\u63a5\u8bf7\u6c42\uff0c \u53ef\u4ee5\u8003\u8651\u9002\u5f53\u589e\u5927back_log \u7684\u503c\u3002\r\n\r\n# thread_cache_size \uff1a \u7ebf\u7a0b\u6c60\u7f13\u5b58\u7ebf\u7a0b\u6570\u91cf\u7684\u5927\u5c0f \uff0c\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\u540e\u5c06\u5f53\u524d\u7ebf\u7a0b\u7f13\u5b58\u8d77\u6765\uff0c\r\n# \u5f53\u5728\u63a5\u5230\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\u65f6\u5feb\u901f\u54cd\u5e94\u65e0\u9700\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b \u3002\r\n# \u8fd9\u5c24\u5176\u5bf9\u90a3\u4e9b\u4f7f\u7528\u77ed\u8fde\u63a5\u7684\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\u53ef\u4ee5\u6781\u5927\u7684\u63d0\u9ad8\u521b\u5efa\u8fde\u63a5\u7684\u6548\u7387\u3002\u90a3\u4e48\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u53ef\u4ee5\u589e\u5927\u8be5\u53c2\u6570\u7684\u503c\u3002\r\n# \u9ed8\u8ba4\u4e3a60\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a120\u3002\r\n# \u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u51e0\u4e2aMySQL\u72b6\u6001\u503c\u6765\u9002\u5f53\u8c03\u6574\u7ebf\u7a0b\u6c60\u7684\u5927\u5c0f\uff1a\r\nshow global status like 'Thread%';\r\n# \u5f53 Threads_cached \u8d8a\u6765\u8d8a\u5c11\uff0c\u4f46 Threads_connected \u59cb\u7ec8\u4e0d\u964d\uff0c\u4e14 Threads_created \u6301\u7eed\u5347\u9ad8\uff0c\r\n# \u53ef\u9002\u5f53\u589e\u52a0 thread_cache_size \u7684\u5927\u5c0f\u3002\r\n\r\n# wait_timeout \uff1a\u6307\u5b9a \u4e00\u4e2a\u8bf7\u6c42\u7684\u6700\u5927\u8fde\u63a5\u65f6\u95f4 \uff0c\u5bf9\u4e8e4GB\u5de6\u53f3\u5185\u5b58\u7684\u670d\u52a1\u5668\u53ef\u4ee5\u8bbe\u7f6e\u4e3a5-10\u3002\r\n\r\n# interactive_timeout \uff1a\u8868\u793a\u670d\u52a1\u5668\u5728\u5173\u95ed\u8fde\u63a5\u524d\u7b49\u5f85\u884c\u52a8\u7684\u79d2\u6570\u3002\r\n\r\n# \u8fd9\u91cc\u7ed9\u51fa\u4e00\u4efdmy.cnf\u7684\u53c2\u8003\u914d\u7f6e\uff1a\r\n\r\n# &#91;mysqld]\r\n\r\n# port = 3306\r\n# serverid = 1\r\n# socket = \/tmp\/mysql.sock\r\n# skip-locking\r\n# \u907f\u514dMySQL\u7684\u5916\u90e8\u9501\u5b9a\uff0c\u51cf\u5c11\u51fa\u9519\u51e0\u7387\u589e\u5f3a\u7a33\u5b9a\u6027\u3002\r\n# skip-name-resolve\r\n#\u7981\u6b62MySQL\u5bf9\u5916\u90e8\u8fde\u63a5\u8fdb\u884cDNS\u89e3\u6790\uff0c\u4f7f\u7528\u8fd9\u4e00\u9009\u9879\u53ef\u4ee5\u6d88\u9664MySQL\u8fdb\u884cDNS\u89e3\u6790\u7684\u65f6\u95f4\u3002\u4f46\u9700\u8981\u6ce8\u610f\uff0c\r\n# \u5982\u679c\u5f00\u542f\u8be5\u9009\u9879\uff0c\u5219\u6240\u6709\u8fdc\u7a0b\u4e3b\u673a\u8fde\u63a5\u6388\u6743\u90fd\u8981\u4f7f\u7528IP\u5730\u5740\u65b9\u5f0f\uff0c\u5426\u5219MySQL\u5c06\u65e0\u6cd5\u6b63\u5e38\u5904\u7406\u8fde\u63a5\u8bf7\u6c42\uff01\r\n# back_log = 384\r\n# key_buffer_size = 256M\r\n# max_allowed_packet = 4M\r\n# thread_stack = 256K\r\n# table_cache = 128K\r\n# sort_buffer_size = 6M\r\n# read_buffer_size = 4M\r\n# read_rnd_buffer_size=16M\r\n# join_buffer_size = 8M\r\n# myisam_sort_buffer_size =64M\r\n# table_cache = 512\r\n# thread_cache_size = 64\r\n# query_cache_size = 64M\r\n# tmp_table_size = 256M\r\n# max_connections = 768\r\n# max_connect_errors = 10000000\r\n# wait_timeout = 10\r\n# thread_concurrency = 8\r\n# \u8be5\u53c2\u6570\u53d6\u503c\u4e3a\u670d\u52a1\u5668\u903b\u8f91CPU\u6570\u91cf*2\uff0c\u5728\u672c\u4f8b\u4e2d\uff0c\u670d\u52a1\u5668\u67092\u9897\u7269\u7406CPU\uff0c\u800c\u6bcf\u9897\u7269\u7406CPU\u53c8\u652f\u6301H.T\u8d85\u7ebf\u7a0b\uff0c\r\n# \u6240\u4ee5\u5b9e\u9645\u53d6\u503c\u4e3a4*2=8\r\n# skip-networking\r\n#\u5f00\u542f\u8be5\u9009\u9879\u53ef\u4ee5\u5f7b\u5e95\u5173\u95edMySQL\u7684TCP\/IP\u8fde\u63a5\u65b9\u5f0f\uff0c\r\n# \u5982\u679cWEB\u670d\u52a1\u5668\u662f\u4ee5\u8fdc\u7a0b\u8fde\u63a5\u7684\u65b9\u5f0f\u8bbf\u95eeMySQL\u6570\u636e\u5e93\u670d\u52a1\u5668\u5219\u4e0d\u8981\u5f00\u542f\u8be5\u9009\u9879\uff01\u5426\u5219\u5c06\u65e0\u6cd5\u6b63\u5e38\u8fde\u63a5\uff01\r\n# table_cache=1024\r\n# innodb_additional_mem_pool_size=4M\r\n#\u9ed8\u8ba4\u4e3a2M\r\n# innodb_flush_log_at_trx_commit=1\r\n# innodb_log_buffer_size=2M\r\n# \u9ed8\u8ba4\u4e3a1M\r\n# innodb_thread_concurrency=8\r\n#\u4f60\u7684\u670d\u52a1\u5668CPU\u6709\u51e0\u4e2a\u5c31\u8bbe\u7f6e\u4e3a\u51e0\u3002\u5efa\u8bae\u7528\u9ed8\u8ba4\u4e00\u822c\u4e3a8\r\n# tmp_table_size=64M\r\n# \u9ed8\u8ba4\u4e3a16M\uff0c\u8c03\u523064-256\u6700\u6302\r\n\r\n# thread_cache_size=120\r\n# query_cache_size=32M\r\n\r\n# \u5f88\u591a\u60c5\u51b5\u8fd8\u9700\u8981\u5177\u4f53\u60c5\u51b5\u5177\u4f53\u5206\u6790\uff01\r\n\r\n# \u6848\u4f8b\u5206\u6790\uff1a\r\n# \u603b\u7ed3\u4e00\u4e0b\u5c31\u662f\u9047\u5230CPU\u8d44\u6e90\u4e0d\u8db3\u7684\u95ee\u9898\uff0c\u53ef\u4ee5\u4ece\u4e0b\u97622\u4e2a\u601d\u8def\u53bb\u89e3\u51b3\u3002\r\n#     \u758f\u901a\u62e5\u5835\u8def\u6bb5\uff0c\u6d88\u9664\u74f6\u9888\uff0c\u8ba9\u7b49\u5f85\u7684\u65f6\u95f4\u66f4\u77ed\uff1b\r\n#     \u5f00\u62d3\u65b0\u7684\u901a\u9053\uff0c\u589e\u52a0\u5e76\u884c\u5904\u7406\u80fd\u529b\u3002\r\n\r\n# 3. \u4f18\u5316\u6570\u636e\u5e93\u7ed3\u6784\r\n\r\n# 3.1 \u62c6\u5206\u8868\uff1a\u51b7\u70ed\u6570\u636e\u5206\u79bb\r\n\r\n# 3.2 \u589e\u52a0\u4e2d\u95f4\u8868\r\n\r\n# 3.3 \u589e\u52a0\u5197\u4f59\u5b57\u6bb5\r\n# \u8bbe\u8ba1\u6570\u636e\u5e93\u8868\u65f6\u5e94\u5c3d\u91cf\u9075\u5faa\u8303\u5f0f\u7406\u8bba\u7684\u89c4\u7ea6\uff0c\u5c3d\u53ef\u80fd\u51cf\u5c11\u5197\u4f59\u5b57\u6bb5\uff0c\u8ba9\u6570\u636e\u5e93\u8bbe\u8ba1\u770b\u8d77\u6765\u7cbe\u81f4\u3001\u4f18\u96c5\u3002\r\n# \u4f46\u662f\uff0c\u5408\u7406\u5730\u52a0\u5165\u5197\u4f59\u5b57\u6bb5\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6\u3002\r\n\r\n# \u8868\u7684\u89c4\u8303\u5316\u7a0b\u5ea6\u8d8a\u9ad8\uff0c\u8868\u4e0e\u8868\u4e4b\u95f4\u7684\u5173\u7cfb\u5c31\u8d8a\u591a\uff0c\u9700\u8981\u8fde\u63a5\u67e5\u8be2\u7684\u60c5\u51b5\u4e5f\u5c31\u8d8a\u591a\u3002\u5c24\u5176\u5728\u6570\u636e\u91cf\u5927\uff0c\r\n# \u800c\u4e14\u9700\u8981\u9891\u7e41\u8fdb\u884c\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u4e3a\u4e86\u63d0\u5347\u6548\u7387\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u8003\u8651\u589e\u52a0\u5197\u4f59\u5b57\u6bb5\u6765\u51cf\u5c11\u8fde\u63a5\u3002\r\n\r\n# 3.4 \u4f18\u5316\u6570\u636e\u7c7b\u578b\r\n# \u60c5\u51b51\uff1a\u5bf9\u6574\u6570\u7c7b\u578b\u6570\u636e\u8fdb\u884c\u4f18\u5316\u3002\r\n# \u9047\u5230\u6574\u6570\u7c7b\u578b\u7684\u5b57\u6bb5\u53ef\u4ee5\u7528 INT \u578b \u3002\u8fd9\u6837\u505a\u7684\u7406\u7531\u662f\uff0cINT \u578b\u6570\u636e\u6709\u8db3\u591f\u5927\u7684\u53d6\u503c\u8303\u56f4\uff0c\r\n# \u4e0d\u7528\u62c5\u5fc3\u6570\u636e\u8d85\u51fa\u53d6\u503c\u8303\u56f4\u7684\u95ee\u9898\u3002\u521a\u5f00\u59cb\u505a\u9879\u76ee\u7684\u65f6\u5019\uff0c\u9996\u5148\u8981\u4fdd\u8bc1\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\uff0c\u8fd9\u6837\u8bbe\u8ba1\u5b57\u6bb5\u7c7b\u578b\u662f\u53ef\u4ee5\u7684\u3002\r\n# \u4f46\u5728\u6570\u636e\u91cf\u5f88\u5927\u7684\u65f6\u5019\uff0c\u6570\u636e\u7c7b\u578b\u7684\u5b9a\u4e49\uff0c\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u4f1a\u5f71\u54cd\u5230\u7cfb\u7edf\u6574\u4f53\u7684\u6267\u884c\u6548\u7387\u3002\r\n\r\n# \u5bf9\u4e8e \u975e\u8d1f\u578b \u7684\u6570\u636e\uff08\u5982\u81ea\u589eID\u3001\u6574\u578bIP\uff09\u6765\u8bf4\uff0c\u8981\u4f18\u5148\u4f7f\u7528\u65e0\u7b26\u53f7\u6574\u578b UNSIGNED \u6765\u5b58\u50a8\u3002\r\n# \u56e0\u4e3a\u65e0\u7b26\u53f7\u76f8\u5bf9\u4e8e\u6709\u7b26\u53f7\uff0c\u540c\u6837\u7684\u5b57\u8282\u6570\uff0c\u5b58\u50a8\u7684\u6570\u503c\u8303\u56f4\u66f4\u5927\u3002\u5982tinyint\u6709\u7b26\u53f7\u4e3a-128-127\uff0c\u65e0\u7b26\u53f7\u4e3a0-255\uff0c\r\n# \u591a\u51fa\u4e00\u500d\u7684\u5b58\u50a8\u7a7a\u95f4\u3002\r\n\r\n# \u60c5\u51b52\uff1a\u65e2\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7c7b\u578b\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6574\u6570\u7c7b\u578b\u7684\u5b57\u6bb5\uff0c\u8981\u9009\u62e9\u4f7f\u7528\u6574\u6570\u7c7b\u578b\u3002\r\n# \u8ddf\u6587\u672c\u7c7b\u578b\u6570\u636e\u76f8\u6bd4\uff0c\u5927\u6574\u6570\u5f80\u5f80\u5360\u7528 \u66f4\u5c11\u7684\u5b58\u50a8\u7a7a\u95f4 \uff0c\u56e0\u6b64\uff0c\u5728\u5b58\u53d6\u548c\u6bd4\u5bf9\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u5360\u7528\u66f4\u5c11\u7684\u5185\u5b58\u7a7a\u95f4\u3002\r\n# \u6240\u4ee5\uff0c\u5728\u4e8c\u8005\u7686\u53ef\u7528\u7684\u60c5\u51b5\u4e0b\uff0c\u5c3d\u91cf\u4f7f\u7528\u6574\u6570\u7c7b\u578b\uff0c\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u7684\u6548\u7387\u3002\u5982\uff1a\u5c06IP\u5730\u5740\u8f6c\u6362\u6210\u6574\u578b\u6570\u636e\u3002\r\n\r\n# \u60c5\u51b53\uff1a\u907f\u514d\u4f7f\u7528TEXT\u3001BLOB\u6570\u636e\u7c7b\u578b\r\n\r\n# \u60c5\u51b54\uff1a\u907f\u514d\u4f7f\u7528ENUM\u7c7b\u578b\r\n\r\n# \u60c5\u51b55\uff1a\u4f7f\u7528TIMESTAMP\u5b58\u50a8\u65f6\u95f4\r\n\r\n# \u60c5\u51b56\uff1a\u7528DECIMAL\u4ee3\u66ffFLOAT\u548cDOUBLE\u5b58\u50a8\u7cbe\u786e\u6d6e\u70b9\u6570\r\n\r\n# \u603b\u4e4b\uff0c\u9047\u5230\u6570\u636e\u91cf\u5927\u7684\u9879\u76ee\u65f6\uff0c\u4e00\u5b9a\u8981\u5728\u5145\u5206\u4e86\u89e3\u4e1a\u52a1\u9700\u6c42\u7684\u524d\u63d0\u4e0b\uff0c\u5408\u7406\u4f18\u5316\u6570\u636e\u7c7b\u578b\uff0c\r\n# \u8fd9\u6837\u624d\u80fd\u5145\u5206\u53d1\u6325\u8d44\u6e90\u7684\u6548\u7387\uff0c\u4f7f\u7cfb\u7edf\u8fbe\u5230\u6700\u4f18\u3002\r\n\r\n# 3.5 \u4f18\u5316\u63d2\u5165\u8bb0\u5f55\u7684\u901f\u5ea6\r\n\r\n# 1. MyISAM\u5f15\u64ce\u7684\u8868\uff1a\r\n# \u2460 \u7981\u7528\u7d22\u5f15\r\n# \u2461 \u7981\u7528\u552f\u4e00\u6027\u68c0\u67e5\r\n# \u2462 \u4f7f\u7528\u6279\u91cf\u63d2\u5165\r\n# \u2463 \u4f7f\u7528LOAD DATA INFILE \u6279\u91cf\u5bfc\u5165\r\n\r\n# 2. InnoDB\u5f15\u64ce\u7684\u8868\uff1a\r\n# \u2460 \u7981\u7528\u552f\u4e00\u6027\u68c0\u67e5\r\n# \u2461 \u7981\u7528\u5916\u952e\u68c0\u67e5\r\n# \u2462 \u7981\u6b62\u81ea\u52a8\u63d0\u4ea4\r\n\r\n# 3.6 \u4f7f\u7528\u975e\u7a7a\u7ea6\u675f\r\n\r\n# \u5728\u8bbe\u8ba1\u5b57\u6bb5\u7684\u65f6\u5019\uff0c\u5982\u679c\u4e1a\u52a1\u5141\u8bb8\uff0c\u5efa\u8bae\u5c3d\u91cf\u4f7f\u7528\u975e\u7a7a\u7ea6\u675f\r\n\r\n# 3.7 \u5206\u6790\u8868\u3001\u68c0\u67e5\u8868\u4e0e\u4f18\u5316\u8868\r\n\r\n#\u4e3e\u4f8b\r\nCREATE TABLE `user1` (\r\n  `id` INT NOT NULL AUTO_INCREMENT,\r\n  `name` VARCHAR(255) DEFAULT NULL,\r\n  `age` INT DEFAULT NULL,\r\n  `sex` VARCHAR(255) DEFAULT NULL,\r\n  PRIMARY KEY (`id`),\r\n  KEY `idx_name` (`name`) USING BTREE\r\n) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb3;\r\n\r\n#\r\nSET GLOBAL log_bin_trust_function_creators = 1;\r\n\r\nDELIMITER \/\/\r\nCREATE FUNCTION  rand_num (from_num INT ,to_num INT) RETURNS INT(11)\r\nBEGIN\r\nDECLARE i INT DEFAULT 0;\r\nSET i = FLOOR(from_num +RAND()*(to_num - from_num+1))   ;\r\nRETURN i;\r\nEND \/\/\r\nDELIMITER ;\r\n\r\n#\r\nDELIMITER \/\/\r\nCREATE PROCEDURE  insert_user( max_num INT )\r\nBEGIN\r\nDECLARE i INT DEFAULT 0;\r\n SET autocommit = 0;\r\n REPEAT\r\n SET i = i + 1;\r\n INSERT INTO `user1` ( NAME,age,sex )\r\n VALUES (\"atguigu\",rand_num(1,20),\"male\");\r\n UNTIL i = max_num\r\n END REPEAT;\r\n COMMIT;\r\nEND \/\/\r\nDELIMITER ;\r\n\r\n#\r\nCALL insert_user(1000);\r\n\r\nSHOW INDEX FROM user1;\r\n\r\nSELECT * FROM user1;\r\n\r\nUPDATE user1 SET NAME = 'atguigu03' WHERE id = 3;\r\n\r\n# 1. \u5206\u6790\u8868\r\nANALYZE TABLE user1;\r\n\r\n# 2. \u68c0\u67e5\u8868\r\nCHECK TABLE user1;\r\n\r\n# 3. \u4f18\u5316\u8868\r\n\r\n# \u65b9\u5f0f1\uff1aOPTIMIZE TABLE\r\nCREATE TABLE t1(id INT,NAME VARCHAR(15)) ENGINE = MYISAM;\r\n\r\nOPTIMIZE TABLE t1;\r\n\r\nCREATE TABLE t2(id INT,NAME VARCHAR(15)) ENGINE = INNODB;\r\n\r\nOPTIMIZE TABLE t2;\r\n\r\n# \u5728MyISAM\u4e2d\uff0c\u662f\u5148\u5206\u6790\u8fd9\u5f20\u8868\uff0c\u7136\u540e\u4f1a\u6574\u7406\u76f8\u5173\u7684MySQL datafile\uff0c\u4e4b\u540e\u56de\u6536\u672a\u4f7f\u7528\u7684\u7a7a\u95f4\uff1b\u5728InnoDB\u4e2d\uff0c\r\n# \u56de\u6536\u7a7a\u95f4\u662f\u7b80\u5355\u901a\u8fc7Alter table\u8fdb\u884c\u6574\u7406\u7a7a\u95f4\u3002\u5728\u4f18\u5316\u671f\u95f4\uff0cMySQL\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u8868\uff0c\r\n# \u4f18\u5316\u5b8c\u6210\u4e4b\u540e\u4f1a\u5220\u9664\u539f\u59cb\u8868\uff0c\u7136\u540e\u4f1a\u5c06\u4e34\u65f6\u8868rename\u6210\u4e3a\u539f\u59cb\u8868\u3002\r\n\r\n# \u8bf4\u660e\uff1a \u5728\u591a\u6570\u7684\u8bbe\u7f6e\u4e2d\uff0c\u6839\u672c\u4e0d\u9700\u8981\u8fd0\u884cOPTIMIZE TABLE\u3002\u5373\u4f7f\u5bf9\u53ef\u53d8\u957f\u5ea6\u7684\u884c\u8fdb\u884c\u4e86\u5927\u91cf\u7684\u66f4\u65b0\uff0c\r\n# \u4e5f\u4e0d\u9700\u8981\u7ecf\u5e38\u8fd0\u884c\uff0c \u6bcf\u5468\u4e00\u6b21 \u6216 \u6bcf\u6708\u4e00\u6b21 \u5373\u53ef\uff0c\u5e76\u4e14\u53ea\u9700\u8981\u5bf9 \u7279\u5b9a\u7684\u8868 \u8fd0\u884c\u3002\r\n\r\n# \u65b9\u5f0f2\uff1a\u4f7f\u7528mysqlcheck\u547d\u4ee4\r\n# Linux\u4e0b\u6267\u884c\r\n# mysqlcheck -o atguigudb3 user1 -uroot -p\r\n\r\n# 3.8 \u5c0f\u7ed3\r\n# \u4e0a\u8ff0\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u662f\u6709\u5229\u6709\u5f0a\u7684\u3002\u6bd4\u5982\uff1a\r\n#     \u4fee\u6539\u6570\u636e\u7c7b\u578b\uff0c\u8282\u7701\u5b58\u50a8\u7a7a\u95f4\u7684\u540c\u65f6\uff0c\u4f60\u8981\u8003\u8651\u5230\u6570\u636e\u4e0d\u80fd\u8d85\u8fc7\u53d6\u503c\u8303\u56f4\uff1b\r\n#     \u589e\u52a0\u5197\u4f59\u5b57\u6bb5\u7684\u65f6\u5019\uff0c\u4e0d\u8981\u5fd8\u4e86\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\uff1b\r\n#     \u628a\u5927\u8868\u62c6\u5206\uff0c\u4e5f\u610f\u5473\u7740\u4f60\u7684\u67e5\u8be2\u4f1a\u589e\u52a0\u65b0\u7684\u8fde\u63a5\uff0c\u4ece\u800c\u589e\u52a0\u989d\u5916\u7684\u5f00\u9500\u548c\u8fd0\u7ef4\u7684\u6210\u672c\u3002\u56e0\u6b64\uff0c\r\n# \u4f60\u4e00\u5b9a\u8981\u7ed3\u5408\u5b9e\u9645\u7684\u4e1a\u52a1\u9700\u6c42\u8fdb\u884c\u6743\u8861\u3002\r\n\r\n# 4. \u5927\u8868\u4f18\u5316\r\n\r\n# 4.1 \u9650\u5b9a\u67e5\u8be2\u7684\u8303\u56f4\r\n# \u7981\u6b62\u4e0d\u5e26\u4efb\u4f55\u9650\u5236\u6570\u636e\u8303\u56f4\u6761\u4ef6\u7684\u67e5\u8be2\u8bed\u53e5\u3002\u6bd4\u5982\uff1a\u6211\u4eec\u5f53\u7528\u6237\u5728\u67e5\u8be2\u8ba2\u5355\u5386\u53f2\u7684\u65f6\u5019\uff0c\r\n# \u6211\u4eec\u53ef\u4ee5\u63a7\u5236\u5728\u4e00\u4e2a\u6708\u7684\u8303\u56f4\u5185\uff1b\r\n\r\n# 4.2 \u8bfb\/\u5199\u5206\u79bb\r\n# \u7ecf\u5178\u7684\u6570\u636e\u5e93\u62c6\u5206\u65b9\u6848\uff0c\u4e3b\u5e93\u8d1f\u8d23\u5199\uff0c\u4ece\u5e93\u8d1f\u8d23\u8bfb\u3002\r\n\r\n# 4.3 \u5782\u76f4\u62c6\u5206\r\n# \u5f53\u6570\u636e\u91cf\u7ea7\u8fbe\u5230 \u5343\u4e07\u7ea7 \u4ee5\u4e0a\u65f6\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u628a\u4e00\u4e2a\u6570\u636e\u5e93\u5207\u6210\u591a\u4efd\uff0c\u653e\u5230\u4e0d\u540c\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\uff0c\r\n# \u51cf\u5c11\u5bf9\u5355\u4e00\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u8bbf\u95ee\u538b\u529b\u3002\r\n\r\n# \u5782\u76f4\u62c6\u5206\u7684\u4f18\u70b9\uff1a \u53ef\u4ee5\u4f7f\u5f97\u5217\u6570\u636e\u53d8\u5c0f\uff0c\u5728\u67e5\u8be2\u65f6\u51cf\u5c11\u8bfb\u53d6\u7684Block\u6570\uff0c\u51cf\u5c11I\/O\u6b21\u6570\u3002\u6b64\u5916\uff0c\r\n# \u5782\u76f4\u5206\u533a\u53ef\u4ee5\u7b80\u5316\u8868\u7684\u7ed3\u6784\uff0c\u6613\u4e8e\u7ef4\u62a4\u3002\r\n\r\n# \u5782\u76f4\u62c6\u5206\u7684\u7f3a\u70b9\uff1a \u4e3b\u952e\u4f1a\u51fa\u73b0\u5197\u4f59\uff0c\u9700\u8981\u7ba1\u7406\u5197\u4f59\u5217\uff0c\u5e76\u4f1a\u5f15\u8d77 JOIN \u64cd\u4f5c\u3002\u6b64\u5916\uff0c\r\n# \u5782\u76f4\u62c6\u5206\u4f1a\u8ba9\u4e8b\u52a1\u53d8\u5f97\u66f4\u52a0\u590d\u6742\u3002\r\n\r\n# 4.4 \u6c34\u5e73\u62c6\u5206\r\n\r\n# 5. \u5176\u5b83\u8c03\u4f18\u7b56\u7565\r\n\r\n# 5.1 \u670d\u52a1\u5668\u8bed\u53e5\u8d85\u65f6\u5904\u7406\r\n# \u5728MySQL 8.0\u4e2d\u53ef\u4ee5\u8bbe\u7f6e \u670d\u52a1\u5668\u8bed\u53e5\u8d85\u65f6\u7684\u9650\u5236 \uff0c\u5355\u4f4d\u53ef\u4ee5\u8fbe\u5230 \u6beb\u79d2\u7ea7\u522b \u3002\r\n# \u5f53\u4e2d\u65ad\u7684\u6267\u884c\u8bed\u53e5\u8d85\u8fc7\u8bbe\u7f6e\u7684\u6beb\u79d2\u6570\u540e\uff0c\u670d\u52a1\u5668\u5c06\u7ec8\u6b62\u67e5\u8be2\u5f71\u54cd\u4e0d\u5927\u7684\u4e8b\u52a1\u6216\u8fde\u63a5\uff0c\u7136\u540e\u5c06\u9519\u8bef\u62a5\u7ed9\u5ba2\u6237\u7aef\u3002\r\n\r\n# 5.2 \u521b\u5efa\u5168\u5c40\u901a\u7528\u8868\u7a7a\u95f4\r\nCREATE TABLESPACE atguigu1 ADD DATAFILE 'atguigu1.ibd' file_block_size=16k;\r\n\r\nCREATE TABLE test(id INT,NAME VARCHAR(10)) ENGINE=INNODB DEFAULT CHARSET utf8mb4 TABLESPACE atguigu1;\r\n\r\nALTER TABLE test TABLESPACE atguigu1;\r\n\r\nDROP TABLESPACE atguigu1;\r\n\r\nDROP TABLE test;\r\n\r\n# 5.3 MySQL 8.0\u65b0\u7279\u6027\uff1a\u9690\u85cf\u7d22\u5f15\u5bf9\u8c03\u4f18\u7684\u5e2e\u52a9<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[47],"class_list":["post-1676","post","type-post","status-publish","format-standard","hentry","category-mysql-code","tag-mysql"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1676"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1676"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1676\/revisions"}],"predecessor-version":[{"id":1677,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1676\/revisions\/1677"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}