{"id":5405,"date":"2020-07-30T00:25:41","date_gmt":"2020-07-29T16:25:41","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5405"},"modified":"2020-07-30T00:25:41","modified_gmt":"2020-07-29T16:25:41","slug":"mysql-innodb-%e8%a1%a8%e5%8e%8b%e7%bc%a9%e8%a1%8c%e6%a0%bc%e5%bc%8f%e5%8e%8b%e7%bc%a9","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5405","title":{"rendered":"MySQL InnoDB \u8868\u538b\u7f29(\u884c\u683c\u5f0f\u538b\u7f29)"},"content":{"rendered":"<div>\n<div>\n<div>\nMySQL InnoDB\u652f\u6301\u6570\u636e\u538b\u7f29\uff0c\u6709\u4e24\u79cd\u6570\u636e\u538b\u7f29\u65b9\u5f0f\uff0c\u7b2c\u4e00\u79cd\u4e3a\u8868\u538b\u7f29\uff0c\u901a\u5e38\u4e5f\u79f0\u4e4b\u4e3a\u884c\u683c\u5f0f\u538b\u7f29\uff0c\u53e6\u5916\u4e00\u79cd\u662f\u9875\u538b\u7f29\uff0c\u9875\u538b\u7f29\u5bf9\u64cd\u4f5c\u7cfb\u7edf\u53ca\u6587\u4ef6\u7cfb\u7edf\u6709\u4e00\u5b9a\u7684\u8981\u6c42\u3002\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u8868\u538b\u7f29(\u884c\u683c\u5f0f\u538b\u7f29)\u7684\u539f\u7406\u53ca\u4f7f\u7528\u65b9\u6cd5\u3002<br \/>\n\u8868\u538b\u7f29\u9002\u7528\u7684\u573a\u666f\uff1a<\/p>\n<ol>\n<li>\u6709\u5f88\u591a\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u5b57\u6bb5\uff0c\u6bd4\u5982char, varhcar, text\u4e4b\u7c7b\u3002<\/li>\n<li>\u8bfb\u591a\u5199\u5c11\u7684\u4e1a\u52a1\u573a\u666f\u3002<\/li>\n<\/ol>\n<p>\u8868\u538b\u7f29\u652f\u6301\u72ec\u7acb\u8868\u7a7a\u95f4\u548c\u5171\u4eab\u8868\u7a7a\u95f4\uff0c\u4e0d\u652f\u6301\u7cfb\u7edf\u8868\u7a7a\u95f4\u3002<\/p>\n<ul>\n<li>\u72ec\u7acb\u8868\u7a7a\u95f4\uff1afile-per-table<\/li>\n<li>\u5171\u4eab\u8868\u7a7a\u95f4\uff1ageneral tablespace<\/li>\n<\/ul>\n<h4>1. \u72ec\u7acb\u8868\u7a7a\u95f4\u521b\u5efa\u538b\u7f29\u8868<\/h4>\n<p>\u524d\u63d0\u6761\u4ef6\uff1a<br \/>\ninnodb_file_per_table=ON<br \/>\ninnodb_file_format=Barracuda<br \/>\n\u521b\u5efa\u8bed\u6cd5\uff1a<br \/>\nCREATE TABLE t1 (c1 INT PRIMARY KEY) ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8;<\/p>\n<h4>2. \u5171\u4eab\u8868\u7a7a\u95f4\u521b\u5efa\u538b\u7f29\u8868<\/h4>\n<p>\u524d\u63d0\u6761\u4ef6\uff1a<br \/>\n\u5728general tablespace\u8868\u7a7a\u95f4\u4e2d\u521b\u5efa\u538b\u7f29\u8868\uff0c\u5fc5\u987b\u8981\u8bbe\u7f6eFILE_BLOCK_SIZE\uff0c\u5b83\u7684\u6709\u6548\u503c\u4e0einnodb_page_size\u76f8\u5173\uff0cKEY_BLOCK_SIZE\u00a0\u5fc5\u987b\u4e3a FILE_BLOCK_SIZE\/1024\u3002<br \/>\n\u4f8b\u5982\uff1a<br \/>\ninnodb_page_size=16384<br \/>\nFILE_BLOCK_SIZE=8192<br \/>\nKEY_BLOCK_SIZE=FILE_BLOCK_SIZE\/1024=8<br \/>\n\u521b\u5efa\u8bed\u6cd5\uff1a<br \/>\nCREATE TABLESPACE ts2 ADD DATAFILE \\&#8217;ts2.ibd\\&#8217; FILE_BLOCK_SIZE = 8192 Engine=InnoDB;<br \/>\nCREATE TABLE t4 (c1 INT PRIMARY KEY) TABLESPACE ts2 ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8;<\/p>\n<h4>3. \u8868\u538b\u7f29\u8bed\u6cd5\u53ca\u539f\u7406<\/h4>\n<h5>3.1 \u8868\u538b\u7f29\u8bed\u6cd5<\/h5>\n<p>InnoDB\u4f7f\u7528\u5982\u4e0b\u8bed\u6cd5\u8fdb\u884c\u538b\u7f29\u8868\u7684\u521b\u5efa\uff1a<br \/>\nROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=8<br \/>\n\u5982\u679c\u6ca1\u6709\u6307\u5b9aKEY_BLOCK_SIZE\u503c\uff0c\u9ed8\u8ba4\u4e3ainnodb_page_size\u503c\u7684\u4e00\u534a\uff0c\u4e5f\u5c31\u662f8KB\u3002<br \/>\n32KB \u548c 64KB\u7684\u9875\u5927\u5c0f\u4e0d\u652f\u6301\u538b\u7f29\u3002\u9ed8\u8ba4\u7684InnoDB\u672a\u538b\u7f29\u7684\u9875\u5927\u5c0f\u4e3a16KB\uff0cKEY_BLOCK_SIZE \u53ef\u8bbe\u7f6e\u4e3a1KB\uff0c2KB\uff0c4KB\uff0c8KB\uff0c16KB\uff0cKEY_BLOCK_SIZE\u5e94\u5f53\u8bbe\u7f6e\u4e3a\u5927\u4e8e\u8868\u4e2d\u4e00\u6761\u8bb0\u5f55\u7684\u6700\u5927\u957f\u5ea6\uff0c\u5b9e\u9645\u7684\u538b\u7f29\u7b97\u6cd5\u4e0d\u53d7KEY_BLOCK_SIZE\u503c\u5f71\u54cd\uff0c\u8fd9\u4e2a\u503c\u51b3\u5b9a\u6bcf\u4e2a\u538b\u7f29\u5757\u6709\u591a\u5927\uff0c\u95f4\u63a5\u5f71\u54cd\u4e00\u4e2a\u538b\u7f29\u540e\u7684\u9875\u80fd\u591f\u5b58\u653e\u591a\u5c11\u4e2a\u884c\u8bb0\u5f55\u3002\u5982\u679c\u5c06KEY_BLOCK_SIZE\u8bbe\u7f6e\u7684\u4e0e\u9875\u5927\u5c0f\u4e00\u81f4\uff0c\u6bd4\u598216K\uff0c\u4e0d\u4f1a\u5bfc\u81f4\u592a\u591a\u7684\u538b\u7f29\uff0c\u56e0\u4e3a\u6b63\u5e38\u7684\u4e00\u4e2a\u9875\u9762\u5c31\u662f16K\uff0c\u4f46\u662f\u8fd9\u6837\u7684\u8bbe\u7f6e\u5bf9\u4e8eblob, text, varchar\u7c7b\u578b\u6709\u5f88\u597d\u7684\u538b\u7f29\u6548\u679c\u3002<\/p>\n<h5>3.2 \u8868\u538b\u7f29\u539f\u7406<\/h5>\n<p>\u5904\u7406\u5668\u548c\u5185\u5b58\u7684\u8ba1\u7b97\u548c\u5b58\u50a8\u901f\u5ea6\u8fdc\u8fdc\u5927\u4e8e\u78c1\u76d8IO\uff0c\u56e0\u6b64\u5927\u591a\u6570\u573a\u666f\u4e0b\uff0c\u6570\u636e\u5e93\u6027\u80fd\u74f6\u9888\u5728\u78c1\u76d8IO\u4e0a\uff0c\u6570\u636e\u538b\u7f29\u80fd\u591f\u663e\u8457\u51cf\u5c11\u6570\u636e\u7684\u5927\u5c0f\uff0c\u51cf\u5c11\u78c1\u76d8IO\u6b21\u6570\uff0c\u63d0\u9ad8\u541e\u5410\u91cf\uff0c\u552f\u4e00\u7684\u6210\u672c\u662fCPU\u6d88\u8017\u5c06\u4f1a\u7a0d\u5fae\u589e\u52a0\u3002\u6570\u636e\u538b\u7f29\u5bf9\u4e8e\u8bfb\u5bc6\u96c6\u578b\u7684\u5e94\u7528\u6709\u975e\u5e38\u597d\u7684\u6548\u679c\u3002<br \/>\n\u521b\u5efa\u538b\u7f29\u683c\u5f0f\u7684\u8868\uff0c\u80fd\u591f\u4f7f\u7528\u6bd4innodb_page_size\u66f4\u5c0f\u7684\u9875\uff0c\u66f4\u5c0f\u7684\u9875\u610f\u5473\u7740\u66f4\u5c11\u7684\u78c1\u76d8IO\u8bfb\u5199\u3002<br \/>\n\u538b\u7f29\u4e4b\u540e\u7684\u9875\u5927\u5c0f\u7531\u53c2\u6570 KEY_BLOCK_SIZE \u6307\u5b9a\u3002\u5982\u679c\u8be5\u503c\u6307\u5b9a\u7684\u8d8a\u5c0f\uff0c\u53ef\u80fd\u4f1a\u83b7\u5f97\u8d8a\u597d\u7684IO\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u662f\u5982\u679c\u8be5\u503c\u592a\u5c0f\uff0c\u53ef\u80fd\u4f1a\u5e26\u6765\u5176\u4ed6\u7684\u989d\u5916\u5f00\u9500\uff0c\u6bd4\u5982\u538b\u7f29\u540e\u7684\u6570\u636e\u65e0\u6cd5\u5b8c\u6574\u5bb9\u7eb3\u5728\u4e00\u4e2a\u975e\u5e38\u5c0f\u7684\u9875\u9762\u91cc\u3002\u5f53\u7136\u5bf9\u4e8eKEY_BLOCK_SIZE\u7684\u503c\uff0c\u6709\u4e00\u4e2a\u786c\u6027\u9650\u5236\uff0c\u8fd9\u4e2a\u9650\u5236\u57fa\u4e8e\u7d22\u5f15\u5b57\u6bb5\u7684\u957f\u5ea6\uff0c\u5982\u679cKEY_BLOCK_SIZE\u592a\u5c0f\uff0c\u5219\u4f1a\u5bfc\u81f4create table\u6216\u8005alter table\u8bed\u53e5\u6267\u884c\u62a5\u9519\u3002<br \/>\n\u5bf9\u4e8e\u4e00\u4e2a\u6253\u5f00\u538b\u7f29\u529f\u80fd\u7684\u8868\uff0c\u8868\u4e2d\u7684\u6240\u6709\u7d22\u5f15\uff0c\u5305\u62ec\u805a\u7c07\u7d22\u5f15\u3001\u4e8c\u7ea7\u7d22\u5f15\uff0c\u90fd\u4f1a\u4f7f\u7528\u540c\u6837\u7684\u9875\u5927\u5c0f\u8fdb\u884c\u538b\u7f29\u3002<br \/>\n\u5728buffer pool\u91cc\u9762\uff0c\u538b\u7f29\u540e\u7684\u6570\u636e\u5b58\u653e\u5728\u66f4\u5c0f\u7684\u9875\u91cc\uff0c\u9875\u5927\u5c0f\u7531KEY_BLOCK_SIZE\u6307\u5b9a\u3002\u5982\u679c\u8981\u66f4\u65b0\u4e00\u4e2a\u538b\u7f29\u9875\u9762\u91cc\u7684\u5b57\u6bb5\u503c\uff0c\u9700\u8981\u5728buffer pool\u91cc\u9762\u521b\u5efa\u4e00\u4e2a\u672a\u538b\u7f29\u7684\u9875\u9762\u6765\u5b58\u653e\u89e3\u538b\u540e\u7684\u6570\u636e\uff0c\u5728buffer pool\u91cc\u9762\uff0c\u5bf9\u672a\u538b\u7f29\u9875\u7684\u66f4\u65b0\u90fd\u4f1a\u91cd\u65b0\u5199\u56de\u4e0e\u4e4b\u76f8\u5bf9\u5e94\u7684\u538b\u7f29\u7684\u9875\u3002\u56e0\u6b64\u6253\u5f00\u538b\u7f29\u529f\u80fd\u4e4b\u540e\uff0c\u9700\u8981\u589e\u52a0buffer pool\u7684\u5927\u5c0f\uff0c\u4ee5\u5bb9\u7eb3\u989d\u5916\u7684\u6570\u636e\uff08\u538b\u7f29\u548c\u672a\u538b\u7f29\u7684\u9875\u9762)\uff0c\u5f53buffer pool\u91cc\u9762\u7a7a\u95f2\u7a7a\u95f4\u4e0d\u8db3\u65f6\uff0c\u672a\u538b\u7f29\u7684\u9875\u4f1a\u88ab\u91ca\u653e\uff0c\u800c\u5f53\u4e0b\u4e00\u6b21\u8bbf\u95ee\u9700\u8981\u672a\u538b\u7f29\u9875\u9762\u65f6\uff0c\u5b83\u4f1a\u88ab\u518d\u6b21\u521b\u5efa\u3002<\/p>\n<h4>4. \u8868\u538b\u7f29\u76d1\u63a7<\/h4>\n<p>\u4e3b\u8981\u901a\u8fc7information_schema\u91cc\u9762\u7684\u51e0\u4e2a\u8868\u6765\u76d1\u63a7\u538b\u7f29\u72b6\u6001\u3002<\/p>\n<ul>\n<li>information_schema.INNODB_CMP<\/li>\n<li>information_schema.INNODB_CMPMEM<\/li>\n<li>information_schema.INNODB_CMPMEM_RESET<\/li>\n<li>information_schema.INNODB_CMP_PER_INDEX\uff0c\u9ed8\u8ba4\u8fd9\u4e2a\u8868\u7684\u76d1\u63a7\u662f\u5173\u95ed\u7684\uff0c\u9700\u8981\u8bbe\u7f6e\u53c2\u6570innodb_cmp_per_index_enabled=ON\u6253\u5f00\uff0c\u4f46\u5bf9\u6027\u80fd\u6709\u4e00\u5b9a\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h4>5. \u8868\u538b\u7f29\u76f8\u5173\u53c2\u6570<\/h4>\n<ul>\n<li>innodb_compression_level\uff0c\u8bbe\u7f6e\u538b\u7f29\u7ea7\u522b\uff0c\u53d6\u503c\u8303\u56f40~9\uff0c\u9ed8\u8ba4\u503c\u4e3a6\u3002<\/li>\n<li>innodb_compression_failure_threshold_pct\uff0c\u5b9a\u4e49\u4e86\u8868\u538b\u7f29\u5931\u8d25\u7387\u9608\u503c\uff0c\u8d85\u8fc7\u8fd9\u4e2a\u9608\u503c\u65f6\uff0c\u901a\u8fc7\u589e\u52a0\u538b\u7f29\u9875\u4e2d\u7684\u4fdd\u7559\u7a7a\u95f4\uff0c\u6765\u964d\u4f4e\u538b\u7f29\u5931\u8d25\u7387\u3002\u53d6\u503c\u8303\u56f40~100\uff0c\u9ed8\u8ba4\u503c\u4e3a5\u3002<\/li>\n<li>innodb_compression_pad_pct_max\uff0c\u538b\u7f29\u9875\u4e2d\u4fdd\u7559\u7684\u7a7a\u95f2\u7a7a\u95f4\u7684\u6700\u5927\u6bd4\u4f8b\uff0c\u53d6\u503c\u8303\u56f40~75\uff0c\u9ed8\u8ba4\u503c\u4e3a50\u3002<\/li>\n<li>innodb_log_compressed_pages\uff0c\u6307\u5b9a\u91cd\u65b0\u538b\u7f29\u7684\u9875\u6570\u636e\u662f\u5426\u5199\u5165redo log\u91cc\u9762\uff0c\u9ed8\u8ba4\u503c\u4e3aON\uff0c\u5982\u679czlib\u7248\u672c\u4e0d\u53d8\uff0c\u5efa\u8bae\u8bbe\u7f6e\u4e3aOFF\u3002<\/li>\n<\/ul>\n<p>\u5f53\u8868\u538b\u7f29\u5bfc\u81f4CPU\u8d1f\u8f7d\u8fc7\u9ad8\uff0c\u53ef\u4ee5\u8003\u8651\u964d\u4f4e\u538b\u7f29\u7ea7\u522b(innodb_compression_level)\uff0c\u6765\u51cf\u5c11\u538b\u7f29\u5bf9CPU\u7684\u6d88\u8017\u3002<\/p>\n<h4>6. \u8868\u538b\u7f29\u4f7f\u7528\u9650\u5236<\/h4>\n<ul>\n<li>MySQL 5.1 \u4e4b\u524d\u7684\u7248\u672c\u4e0d\u652f\u6301\u8868\u538b\u7f29\u3002<\/li>\n<li>\u538b\u7f29\u8868\u4e0d\u80fd\u5b58\u653e\u5728InnoDB\u7cfb\u7edf\u8868\u7a7a\u95f4\u3002<\/li>\n<li>General tablespaces \u8868\u7a7a\u95f4\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u8868\uff0c\u4f46\u662f\u538b\u7f29\u7684\u8868\u548c\u672a\u538b\u7f29\u7684\u8868\u4e0d\u540c\u5171\u5b58\u4e8e\u4e00\u4e2aGeneral tablespaces\u91cc\u9762\u3002<\/li>\n<li>\u8868\u538b\u7f29\u662f\u5bf9\u6574\u4e2a\u8868\u7684\u538b\u7f29\uff0c\u5305\u62ec\u4e0e\u8868\u76f8\u5173\u7684\u6240\u6709\u7d22\u5f15\uff0c\u4e0d\u80fd\u53ea\u5bf9\u6307\u5b9a\u7684\u884c\u8fdb\u884c\u538b\u7f29\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MySQL InnoDB\u652f\u6301\u6570\u636e\u538b\u7f29\uff0c\u6709\u4e24\u79cd\u6570\u636e\u538b\u7f29\u65b9\u5f0f\uff0c\u7b2c\u4e00\u79cd\u4e3a\u8868\u538b\u7f29\uff0c\u901a\u5e38\u4e5f\u79f0\u4e4b\u4e3a\u884c\u683c\u5f0f\u538b\u7f29\uff0c\u53e6\u5916\u4e00\u79cd\u662f\u9875 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5405\"> <span class=\"screen-reader-text\">MySQL InnoDB \u8868\u538b\u7f29(\u884c\u683c\u5f0f\u538b\u7f29)<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[90,88],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"MySQL 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