{"id":320,"date":"2013-07-24T02:50:03","date_gmt":"2013-07-24T02:50:03","guid":{"rendered":"320722549d1751cf3f247855f937b982"},"modified":"2013-07-24T02:50:03","modified_gmt":"2013-07-24T02:50:03","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/320","title":{"rendered":"mysql innodb \u6027\u80fd\u4f18\u5316"},"content":{"rendered":"

\u5efa\u8bae\u53c2\u6570\uff1a<\/strong>\n<\/p>\n

max_connections=800<\/p>\n

key_buffer_size=512M
\nquery_cache_size=128M
\nsort_buffer_size=64M
\ntable_open_cache=512<\/p>\n

sort_buffer_size = 2M
\nread_buffer_size = 2M
\nread_rnd_buffer_size = 8M
\nmyisam_sort_buffer_size = 64M<\/p>\n

\ninnodb_buffer_pool_size=10G
\ninnodb_flush_logs_at_trx_commit=1
\ninnodb_file_per_table=1
\ninnodb_open_files=4096<\/p>\n

expire_logs_days = 30 \/\/Binary Log 30 day, bin-log
\nlog-bin=mysql-bin<\/p>\n

 <\/p>\n

 <\/p>\n

\u53c2\u6570\u8c03\u4f18\u5185\u5bb9\uff1a
\n<\/strong>\u3000\u30001. \u5185\u5b58\u5229\u7528\u65b9\u9762
\n\u3000\u30002. \u65e5\u503c\u63a7\u5236\u65b9\u9762
\n\u3000\u30003.\u3000\u6587\u4ef6IO\u5206\u914d\uff0c\u7a7a\u95f4\u5360\u7528\u65b9\u9762
\n\u3000\u30004. \u5176\u5b83\u76f8\u5173\u53c2\u6570<\/p>\n

\n <\/p>\n

\uff11.\u5185\u5b58\u5229\u7528\u65b9\u9762\uff1a
\n<\/strong>\u9996\u5148\u4ecb\u7ecd\u4e00\u4e2aInnodb\u6700\u91cd\u8981\u7684\u53c2\u6570\uff1a
\ninnodb_buffer_pool_size<\/strong>
\n\u3000\u3000\u8fd9\u4e2a\u53c2\u6570\u548cMyISAM\u7684key_buffer_size\u6709\u76f8\u4f3c\u4e4b\u5904\uff0c\u4f46\u4e5f\u662f\u6709\u5dee\u522b\u7684\u3002\u8fd9\u4e2a\u53c2\u6570\u4e3b\u8981\u7f13\u5b58innodb\u8868\u7684\u7d22\u5f15\uff0c\u6570\u636e\uff0c\u63d2\u5165\u6570\u636e\u65f6\u7684\u7f13\u51b2\u3002\u4e3aInnodb\u52a0\u901f\u4f18\u5316\u9996\u8981\u53c2\u6570\u3002
\n\u3000\u3000\u8be5\u53c2\u6570\u5206\u914d\u5185\u5b58\u7684\u539f\u5219\uff1a\u8fd9\u4e2a\u53c2\u6570\u9ed8\u8ba4\u5206\u914d\u53ea\u67098M\uff0c\u53ef\u4ee5\u8bf4\u662f\u975e\u5e38\u5c0f\u7684\u4e00\u4e2a\u503c\u3002\u5982\u679c\u662f\u4e00\u4e2a\u4e13\u7528\uff24\uff22\u670d\u52a1\u5668\uff0c\u90a3\u4e48\u4ed6\u53ef\u4ee5\u5360\u5230\u5185\u5b58\u768470%-80%\u3002\u8fd9\u4e2a\u53c2\u6570\u4e0d\u80fd\u52a8\u6001\u66f4\u6539\uff0c\u6240\u4ee5\u5206\u914d\u9700\u591a\u8003\u8651\u3002\u5206\u914d\u8fc7\u5927\uff0c\u4f1a\u4f7fSwap\u5360\u7528\u8fc7\u591a\uff0c\u81f4\u4f7fMysql\u7684\u67e5\u8be2\u7279\u6162\u3002\u5982\u679c\u4f60\u7684\u6570\u636e\u6bd4\u8f83\u5c0f\uff0c\u90a3\u4e48\u53ef\u5206\u914d\u662f\u4f60\u7684\u6570\u636e\u5927\u5c0f\uff0b\uff11\uff10\uff05\u5de6\u53f3\u505a\u4e3a\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u3002\u4f8b\u5982\uff1a\u6570\u636e\u5927\u5c0f\u4e3a\uff15\uff10\uff2d,\u90a3\u4e48\u7ed9\u8fd9\u4e2a\u503c\u5206\u914dinnodb_buffer_pool_size\uff1d\uff16\uff14\uff2d
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_buffer_pool_size=4G<\/strong>
\n\u8fd9\u4e2a\u53c2\u6570\u5206\u914d\u503c\u7684\u4f7f\u7528\u60c5\u51b5\u53ef\u4ee5\u6839\u636eshow innodb status\\G;<\/strong>\u4e2d\u7684
\n----------------------
\nBUFFER POOL AND MEMORY
\n----------------------
\nTotal memory allocated 4668764894;<\/strong> <\/span>
\n<\/span>\u53bb\u786e\u8ba4\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n

\n\u7b2c\u4e8c\u4e2a\uff1a
\ninnodb_additional_mem_pool\uff1a<\/strong>
\n\u4f5c\u7528\uff1a\u7528\u6765\u5b58\u653eInnodb\u7684\u5185\u90e8\u76ee\u5f55
\n\u8fd9\u4e2a\u503c\u4e0d\u7528\u5206\u914d\u592a\u5927\uff0c\u7cfb\u7edf\u53ef\u4ee5\u81ea\u52a8\u8c03\u3002\u4e0d\u7528\u8bbe\u7f6e\u592a\u9ad8\u3002\u901a\u5e38\u6bd4\u8f83\u5927\u6570\u636e\u8bbe\u7f6e16\uff2d\u591f\u7528\u4e86\uff0c\u5982\u679c\u8868\u6bd4\u8f83\u591a\uff0c\u53ef\u4ee5\u9002\u5f53\u7684\u589e\u5927\u3002\u5982\u679c\u8fd9\u4e2a\u503c\u81ea\u52a8\u589e\u52a0\uff0c\u4f1a\u5728error log\u6709\u4e2d\u663e\u793a\u7684\u3002
\n\u5206\u914d\u539f\u5219\uff1a
\n\u7528show innodb status\\G;<\/strong>\u53bb\u67e5\u770b\u8fd0\u884c\u4e2d\u7684\uff24\uff22\u662f\u4ec0\u4e48\u72b6\u6001\uff08\u53c2\u8003BUFFER POOL AND MEMORY\u6bb5\u4e2d\uff09\uff0c\u7136\u540e\u53ef\u4ee5\u8c03\u6574\u5230\u9002\u5f53\u7684\u503c\u3002
\n----------------------
\nBUFFER POOL AND MEMORY
\n----------------------
\nTotal memory allocated 4668764894; in additional pool allocated 16777216
\n\u53c2\u8003\uff1ain additional pool allocated 16777216
\n\u6839\u636e\u4f60\u7684\u53c2\u6570\u60c5\u51b5\uff0c\u53ef\u4ee5\u9002\u5f53\u7684\u8c03\u6574\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_additional_mem_pool=16M<\/strong><\/p>\n

\n\uff12.\u5173\u4e8e\u65e5\u503c\u65b9\u9762\uff1a
\ninnodb_log_file_size<\/strong>
\n\u4f5c\u7528\uff1a\u6307\u5b9a\u65e5\u503c\u7684\u5927\u5c0f
\n\u5206\u914d\u539f\u5219\uff1a\u51e0\u4e2a\u65e5\u503c\u6210\u5458\u5927\u5c0f\u52a0\u8d77\u6765\u5dee\u4e0d\u591a\u548c\u4f60\u7684innodb_buffer_pool_size\u76f8\u7b49\u3002\u4e0a\u9650\u4e3a\u6bcf\u4e2a\u65e5\u503c\u4e0a\u9650\u5927\u5c0f\u4e3a4G.\u4e00\u822c\u63a7\u5236\u5728\u51e0\u4e2a\uff2c\uff2f\uff27\u6587\u4ef6\u76f8\u52a0\u5927\u5c0f\u5728\uff12\uff27\u4ee5\u5185\u4e3a\u4f73\u3002\u5177\u4f53\u60c5\u51b5\u8fd8\u9700\u8981\u770b\u4f60\u7684\u4e8b\u52a1\u5927\u5c0f\uff0c\u6570\u636e\u5927\u5c0f\u4e3a\u4f9d\u636e\u3002
\n\u8bf4\u660e\uff1a\u8fd9\u4e2a\u503c\u5206\u914d\u7684\u5927\u5c0f\u548c\u6570\u636e\u5e93\u7684\u5199\u5165\u901f\u5ea6\uff0c\u4e8b\u52a1\u5927\u5c0f\uff0c\u5f02\u5e38\u91cd\u542f\u540e\u7684\u6062\u590d\u6709\u5f88\u5927\u7684\u5173\u7cfb\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_log_file_size=256M<\/strong><\/p>\n

\ninnodb_log_files_in_group
\n<\/strong>\u4f5c\u7528\uff1a\u6307\u5b9a\u4f60\u6709\u51e0\u4e2a\u65e5\u503c\u7ec4\u3002
\n\u5206\u914d\u539f\u5219\uff1a\u3000\u4e00\u822c\u6211\u4eec\u53ef\u4ee5\u7528\uff12\uff0d\uff13\u4e2a\u65e5\u503c\u7ec4\u3002\u9ed8\u8ba4\u4e3a\u4e24\u4e2a\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_log_files_in_group=3<\/strong><\/p>\n

\ninnodb_log_buffer_size\uff1a
\n<\/strong>\u4f5c\u7528\uff1a\u4e8b\u52a1\u5728\u5185\u5b58\u4e2d\u7684\u7f13\u51b2\u3002
\n\u5206\u914d\u539f\u5219\uff1a\u63a7\u5236\u57282-8M.\u8fd9\u4e2a\u503c\u4e0d\u7528\u592a\u591a\u7684\u3002\u4ed6\u91cc\u9762\u7684\u5185\u5b58\u4e00\u822c\u4e00\u79d2\u949f\u5199\u5230\u78c1\u76d8\u4e00\u6b21\u3002\u5177\u4f53\u5199\u5165\u65b9\u5f0f\u548c\u4f60\u7684\u4e8b\u52a1\u63d0\u4ea4\u65b9\u5f0f\u6709\u5173\u3002\u5728\uff2f\uff52\uff41\uff43\uff4c\uff45\u7b49\u6570\u636e\u5e93\u4e86\u89e3\u8fd9\u4e2a\uff0c\u4e00\u822c\u6700\u5927\u6307\u5b9a\u4e3a\uff13\uff2d\u6bd4\u8f83\u5408\u9002\u3002
\n\u53c2\u8003\uff1aInnodb_os_log_written(show global status \u53ef\u4ee5\u62ff\u5230)
\n\u5982\u679c\u8fd9\u4e2a\u503c\u589e\u957f\u8fc7\u5feb\uff0c\u53ef\u4ee5\u9002\u5f53\u7684\u589e\u52a0innodb_log_buffer_size
\n\u53e6\u5916\u5982\u679c\u4f60\u9700\u8981\u5904\u7406\u5927\u7406\u7684\uff34\uff25\uff38\uff34\uff0c\u6216\u662f\uff22\uff2c\uff2f\uff22\u5b57\u6bb5\uff0c\u53ef\u4ee5\u8003\u8651\u589e\u52a0\u8fd9\u4e2a\u53c2\u6570\u7684\u503c\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_log_buffer_size=3M<\/strong><\/p>\n

innodb_flush_logs_at_trx_commit<\/strong>
\n\u4f5c\u7528\uff1a\u63a7\u5236\u4e8b\u52a1\u7684\u63d0\u4ea4\u65b9\u5f0f
\n\u5206\u914d\u539f\u5219\uff1a\u8fd9\u4e2a\u53c2\u6570\u53ea\u6709\uff13\u4e2a\u503c\uff0c\uff10\uff0c\uff11\uff0c\uff12\u8bf7\u786e\u8ba4\u4e00\u4e0b\u81ea\u5df2\u80fd\u63a5\u53d7\u7684\u7ea7\u522b\u3002\u9ed8\u8ba4\u4e3a\uff11\uff0c\u4e3b\u5e93\u8bf7\u4e0d\u8981\u66f4\u6539\u4e86\u3002
\n\u6027\u80fd\u66f4\u9ad8\u7684\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\uff10\u6216\u662f\uff12\uff0c\u4f46\u4f1a\u4e22\u5931\u4e00\u79d2\u949f\u7684\u4e8b\u52a1\u3002
\n\u8bf4\u660e\uff1a<\/strong>
\n\u8fd9\u4e2a\u53c2\u6570\u7684\u8bbe\u7f6e\u5bf9\uff29\uff4e\uff4e\uff4f\uff44\uff42\u7684\u6027\u80fd\u6709\u5f88\u5927\u7684\u5f71\u54cd\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\u7ed9\u591a\u8bf4\u660e\u4e00\u4e0b\u3002
\n\u5f53\u8fd9\u4e2a\u503c\u4e3a1\u65f6\uff1ainnodb \u7684\u4e8b\u52a1LOG\u5728\u6bcf\u6b21\u63d0\u4ea4\u540e\u5199\u5165\u65e5\u503c\u6587\u4ef6\uff0c\u5e76\u5bf9\u65e5\u503c\u505a\u5237\u65b0\u5230\u78c1\u76d8\u3002\u8fd9\u4e2a\u53ef\u4ee5\u505a\u5230\u4e0d\u4e22\u4efb\u4f55\u4e00\u4e2a\u4e8b\u52a1\u3002
\n\u5f53\u8fd9\u4e2a\u503c\u4e3a2\u65f6\uff1a\u5728\u6bcf\u4e2a\u63d0\u4ea4\uff0c\u65e5\u5fd7\u7f13\u51b2\u88ab\u5199\u5230\u6587\u4ef6\uff0c\u4f46\u4e0d\u5bf9\u65e5\u5fd7\u6587\u4ef6\u505a\u5230\u78c1\u76d8\u64cd\u4f5c\u7684\u5237\u65b0,\u5728\u5bf9\u65e5\u5fd7\u6587\u4ef6\u7684\u5237\u65b0\u5728\u503c\u4e3a2\u7684\u60c5\u51b5\u4e5f\u6bcf\u79d2\u53d1\u751f\u4e00\u6b21\u3002\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u8fdb\u7a0b\u8c03\u7528\u65b9\u9762\u7684\u95ee\u9898\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u6bcf\u79d2\uff11\uff10\uff10\uff05\u7684\u53d1\u751f\u3002\u4ece\u800c\u5728\u6027\u80fd\u4e0a\u662f\u6700\u5feb\u7684\u3002\u4f46\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u6216\u6389\u7535\u624d\u4f1a\u5220\u9664\u6700\u540e\u4e00\u79d2\u7684\u4e8b\u52a1\u3002
\n\u5f53\u8fd9\u4e2a\u503c\u4e3a0\u65f6\uff1a\u65e5\u5fd7\u7f13\u51b2\u6bcf\u79d2\u4e00\u6b21\u5730\u88ab\u5199\u5230\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u5bf9\u65e5\u5fd7\u6587\u4ef6\u505a\u5230\u78c1\u76d8\u64cd\u4f5c\u7684\u5237\u65b0\uff0c\u4f46\u662f\u5728\u4e00\u4e2a\u4e8b\u52a1\u63d0\u4ea4\u4e0d\u505a\u4efb\u4f55\u64cd\u4f5c\u3002mysqld\u8fdb\u7a0b\u7684\u5d29\u6e83\u4f1a\u5220\u9664\u5d29\u6e83\u524d\u6700\u540e\u4e00\u79d2\u7684\u4e8b\u52a1\u3002<\/p>\n

\u4ece\u4ee5\u4e0a\u5206\u6790\uff0c\u5f53\u8fd9\u4e2a\u503c\u4e0d\u4e3a\uff11\u65f6\uff0c\u53ef\u4ee5\u53d6\u5f97\u8f83\u597d\u7684\u6027\u80fd\uff0c\u4f46\u9047\u5230\u5f02\u5e38\u4f1a\u6709\u635f\u5931\uff0c\u6240\u4ee5\u9700\u8981\u6839\u636e\u81ea\u5df2\u7684\u60c5\u51b5\u53bb\u8861\u91cf\u3002<\/p>\n

\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_flush_logs_at_trx_commit=1<\/strong><\/p>\n

3.\u3000\u6587\u4ef6IO\u5206\u914d\uff0c\u7a7a\u95f4\u5360\u7528\u65b9\u9762
\ninnodb_file_per_table<\/strong>
\n\u4f5c\u7528\uff1a\u4f7f\u6bcf\u4e2aInnodb\u7684\u8868\uff0c\u6709\u81ea\u5df2\u72ec\u7acb\u7684\u8868\u7a7a\u95f4\u3002\u5982\u5220\u9664\u6587\u4ef6\u540e\u53ef\u4ee5\u56de\u6536\u90a3\u90e8\u5206\u7a7a\u95f4\u3002
\n\u5206\u914d\u539f\u5219\uff1a\u53ea\u6709\u4f7f\u7528\u4e0d\u4f7f\u7528\u3002\u4f46\uff24\uff22\u8fd8\u9700\u8981\u6709\u4e00\u4e2a\u516c\u5171\u7684\u8868\u7a7a\u95f4\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_file_per_table=1<\/strong><\/p>\n

innodb_file_io_threads<\/strong>
\n\u4f5c\u7528\uff1a\u6587\u4ef6\u8bfb\u5199\uff29\uff2f\u6570\uff0c\u8fd9\u4e2a\u53c2\u6570\u53ea\u5728Windows\u4e0a\u8d77\u4f5c\u7528\u3002\u5728LINUX\u4e0a\u53ea\u4f1a\u7b49\u4e8e\uff14
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_file_io_threads=4<\/strong><\/p>\n

innodb_open_files<\/strong>
\n\u4f5c\u7528\uff1a\u9650\u5236Innodb\u80fd\u6253\u5f00\u7684\u8868\u7684\u6570\u636e\u3002
\n\u5206\u914d\u539f\u5219\uff1a\u5982\u679c\u5e93\u91cc\u7684\u8868\u7279\u522b\u591a\u7684\u60c5\u51b5\uff0c\u8bf7\u589e\u52a0\u8fd9\u4e2a\u3002\u8fd9\u4e2a\u503c\u9ed8\u8ba4\u662f\uff13\uff10\uff10\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_open_files=800 <\/span>
\n<\/strong>\u8bf7\u9002\u5f53\u7684\u589e\u52a0table_cache<\/p>\n

\n4. \u5176\u5b83\u76f8\u5173\u53c2\u6570<\/strong>
\n\u8fd9\u91cc\u8bf4\u660e\u4e00\u4e2a\u6bd4\u8f83\u91cd\u8981\u7684\u53c2\u6570\uff1a
\ninnodb_flush_method<\/strong>
\n\u4f5c\u7528\uff1a\uff29\uff4e\uff4e\uff4f\uff44\uff42\u548c\u7cfb\u7edf\u6253\u4ea4\u9053\u7684\u4e00\u4e2a\uff29\uff2f\u6a21\u578b
\n\u5206\u914d\u539f\u5219\uff1aWindows\u4e0d\u7528\u8bbe\u7f6e\u3002
\n\uff35\uff4e\uff49\uff58\u53ef\u4ee5\u8bbe\u7f6e\uff1afsync() or O_SYNC\/O_DSYNC
\n\u5982\u679c\u7cfb\u7edf\u53ef\u4ee5\u7981\u6b62\u7cfb\u7edf\u7684\uff23\uff41\uff43\uff48\uff45\u90a3\u5c31\u628a\u4ed6\u7981\u4e86\u3002
\n\uff2c\uff49\uff4e\uff55\uff58\u53ef\u4ee5\u9009\u62e9\uff1aO_DIRECT <\/span>
\n\u76f4\u63a5\u5199\u5165\u78c1\u76d8\uff0c\u7981\u6b62\u7cfb\u7edf\uff23\uff41\uff43\uff48\uff45\u4e86
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_flush_method=O_DIRECT<\/strong><\/p>\n

innodb_max_dirty_pages_pct<\/strong> <\/span>
\n\u4f5c\u7528\uff1a\u63a7\u5236Innodb\u7684\u810f\u9875\u5728\u7f13\u51b2\u4e2d\u5728\u90a3\u4e2a\u767e\u5206\u6bd4\u4e4b\u4e0b\uff0c\u503c\u5728\u8303\u56f41-100,\u9ed8\u8ba4\u4e3a90.
\n\u8fd9\u4e2a\u53c2\u6570\u7684\u53e6\u4e00\u4e2a\u7528\u5904\uff1a\u5f53\uff29\uff4e\uff4e\uff4f\uff44\uff42\u7684\u5185\u5b58\u5206\u914d\u8fc7\u5927\uff0c\u81f4\u4f7f\uff33\uff57\uff41\uff50\u5360\u7528\u4e25\u91cd\u65f6\uff0c\u53ef\u4ee5\u9002\u5f53\u7684\u51cf\u5c0f\u8c03\u6574\u8fd9\u4e2a\u503c\uff0c\u4f7f\u8fbe\u5230\uff33\uff57\uff41\uff50\u7a7a\u95f4\u91ca\u653e\u51fa\u6765\u3002\u5efa\u4e49\uff1a\u8fd9\u4e2a\u503c\u6700\u5927\u5728\uff19\uff10\uff05\uff0c\u6700\u5c0f\u5728\uff11\uff15\uff05\u3002\u592a\u5927\uff0c\u7f13\u5b58\u4e2d\u6bcf\u6b21\u66f4\u65b0\u9700\u8981\u81f4\u6362\u6570\u636e\u9875\u592a\u591a\uff0c\u592a\u5c0f\uff0c\u653e\u7684\u6570\u636e\u9875\u592a\u5c0f\uff0c\u66f4\u65b0\u64cd\u4f5c\u592a\u6162\u3002
\n\u8bbe\u7f6e\u65b9\u6cd5\uff1a
\ninnodb_max_dirty_pages_pct\uff1d90
\n\u52a8\u6001\u66f4\u6539\u9700\u8981\u6709\uff33\uff55\uff50\uff45\uff52\u6743\u9650\uff1a
\nset global innodb_max_dirty_pages_pct=50;<\/p>\n

 <\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cinnodb\u7684\u53c2\u6570\u8bbe\u7f6e\u7684\u975e\u5e38\u5c0f\uff0c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u8fdc\u8fdc\u4e0d\u591f\u7528<\/span><\/span>
\n\u6bd4\u5982\u6700\u91cd\u8981\u7684\u4e24\u4e2a\u53c2\u6570<\/span><\/span>
\ninnodb_buffer_pool_size \u9ed8\u8ba4\u662f8M<\/span><\/span>
\ninnodb_flush_logs_at_trx_commit \u9ed8\u8ba4\u8bbe\u7f6e\u7684\u662f1 \u4e5f\u5c31\u662f\u540c\u6b65\u5237\u65b0log(\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3)<\/span><\/span>
\ninnodb_buffer_pool_size\uff1a\u8fd9\u662fInnoDB\u6700\u91cd\u8981\u7684\u8bbe\u7f6e\uff0c\u5bf9InnoDB\u6027\u80fd\u6709\u51b3\u5b9a\u6027\u7684\u5f71\u54cd\u3002\u9ed8\u8ba4\u7684\u8bbe\u7f6e\u53ea\u67098M\uff0c\u6240\u4ee5\u9ed8\u8ba4\u7684\u6570\u636e\u5e93\u8bbe\u7f6e\u4e0b\u9762InnoDB\u6027\u80fd\u5f88\u5dee\u3002\u5728\u53ea\u6709 InnoDB\u5b58\u50a8\u5f15\u64ce\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u9762\uff0c\u53ef\u4ee5\u8bbe\u7f6e60-80%\u7684\u5185\u5b58\u3002\u66f4\u7cbe\u786e\u4e00\u70b9\uff0c\u5728\u5185\u5b58\u5bb9\u91cf\u5141\u8bb8\u7684\u60c5\u51b5\u4e0b\u9762\u8bbe\u7f6e\u6bd4InnoDB tablespaces\u592710%\u7684\u5185\u5b58\u5927\u5c0f\u3002<\/span><\/span>
\ninnodb_data_file_path\uff1a\u6307\u5b9a\u8868\u6570\u636e\u548c\u7d22\u5f15\u5b58\u50a8\u7684\u7a7a\u95f4\uff0c\u53ef\u4ee5\u662f\u4e00\u4e2a\u6216\u8005\u591a\u4e2a\u6587\u4ef6\u3002\u6700\u540e\u4e00\u4e2a\u6570\u636e\u6587\u4ef6\u5fc5\u987b\u662f\u81ea\u52a8\u6269\u5145\u7684\uff0c\u4e5f\u53ea\u6709\u6700\u540e\u4e00\u4e2a\u6587\u4ef6\u5141\u8bb8\u81ea\u52a8\u6269\u5145\u3002\u8fd9\u6837\uff0c\u5f53\u7a7a\u95f4\u7528\u5b8c\u540e\uff0c\u81ea\u52a8\u6269\u5145\u6570\u636e\u6587\u4ef6\u5c31\u4f1a\u81ea\u52a8\u589e\u957f\uff08\u4ee58MB\u4e3a\u5355\u4f4d\uff09\u4ee5\u5bb9\u7eb3\u989d\u5916\u7684\u6570\u636e\u3002\u4f8b\u5982\uff1a innodb_data_file_path=\/disk1 \/ibdata1:900M;\/disk2\/ibdata2:50M:autoextend\u4e24\u4e2a\u6570\u636e\u6587\u4ef6\u653e\u5728\u4e0d\u540c\u7684\u78c1\u76d8\u4e0a\u3002\u6570\u636e\u9996\u5148\u653e\u5728ibdata1 \u4e2d\uff0c\u5f53\u8fbe\u5230900M\u4ee5\u540e\uff0c\u6570\u636e\u5c31\u653e\u5728ibdata2\u4e2d\u3002\u4e00\u65e6\u8fbe\u523050MB\uff0cibdata2\u5c06\u4ee58MB\u4e3a\u5355\u4f4d\u81ea\u52a8\u589e\u957f\u3002\u5982\u679c\u78c1\u76d8\u6ee1\u4e86\uff0c\u9700\u8981\u5728\u53e6\u5916\u7684\u78c1\u76d8\u4e0a\u9762\u589e\u52a0\u4e00\u4e2a\u6570\u636e\u6587\u4ef6\u3002<\/span><\/span>
\ninnodb_data_home_dir\uff1a\u653e\u7f6e\u8868\u7a7a\u95f4\u6570\u636e\u7684\u76ee\u5f55\uff0c\u9ed8\u8ba4\u5728mysql\u7684\u6570\u636e\u76ee\u5f55\uff0c\u8bbe\u7f6e\u5230\u548cMySQL\u5b89\u88c5\u6587\u4ef6\u4e0d\u540c\u7684\u5206\u533a\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/span><\/span>
\ninnodb_log_file_size\uff1a\u8be5\u53c2\u6570\u51b3\u5b9a\u4e86recovery speed\u3002\u592a\u5927\u7684\u8bddrecovery\u5c31\u4f1a\u6bd4\u8f83\u6162\uff0c\u592a\u5c0f\u4e86\u5f71\u54cd\u67e5\u8be2\u6027\u80fd\uff0c\u4e00\u822c\u53d6256M\u53ef\u4ee5\u517c\u987e\u6027\u80fd\u548crecovery\u7684\u901f\u5ea6<\/span><\/span>
\n\u3002<\/span><\/span>
\ninnodb_log_buffer_size\uff1a\u78c1\u76d8\u901f\u5ea6\u662f\u5f88\u6162\u7684\uff0c\u76f4\u63a5\u5c06log\u5199\u9053\u78c1\u76d8\u4f1a\u5f71\u54cdInnoDB\u7684\u6027\u80fd\uff0c\u8be5\u53c2\u6570\u8bbe\u5b9a\u4e86log buffer\u7684\u5927\u5c0f\uff0c\u4e00\u822c4M\u3002\u5982\u679c\u6709\u5927\u7684blob\u64cd\u4f5c\uff0c\u53ef\u4ee5\u9002\u5f53\u589e\u5927\u3002<\/span><\/span>
\ninnodb_flush_logs_at_trx_commit=2\uff1a \u8be5\u53c2\u6570\u8bbe\u5b9a\u4e86\u4e8b\u52a1\u63d0\u4ea4\u65f6\u5185\u5b58\u4e2dlog\u4fe1\u606f\u7684\u5904\u7406\u3002<\/span><\/span>
\n   1) =1\u65f6\uff0c\u5728\u6bcf\u4e2a\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0c\u65e5\u5fd7\u7f13\u51b2\u88ab\u5199\u5230\u65e5\u5fd7\u6587\u4ef6\uff0c\u5bf9\u65e5\u5fd7\u6587\u4ef6\u505a\u5230\u78c1\u76d8\u64cd\u4f5c\u7684\u5237\u65b0\u3002Truly ACID\u3002\u901f\u5ea6\u6162\u3002<\/span><\/span>
\n   2) =2\u65f6\uff0c\u5728\u6bcf\u4e2a\u4e8b\u52a1\u63d0\u4ea4\u65f6\uff0c\u65e5\u5fd7\u7f13\u51b2\u88ab\u5199\u5230\u6587\u4ef6\uff0c\u4f46\u4e0d\u5bf9\u65e5\u5fd7\u6587\u4ef6\u505a\u5230\u78c1\u76d8\u64cd\u4f5c\u7684\u5237\u65b0\u3002\u53ea\u6709\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\u6216\u6389\u7535\u624d\u4f1a\u5220\u9664\u6700\u540e\u4e00\u79d2\u7684\u4e8b\u52a1\uff0c\u4e0d\u7136\u4e0d\u4f1a\u4e22\u5931\u4e8b\u52a1\u3002<\/span><\/span>
\n   3) =0\u65f6\uff0c \u65e5\u5fd7\u7f13\u51b2\u6bcf\u79d2\u4e00\u6b21\u5730\u88ab\u5199\u5230\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u5bf9\u65e5\u5fd7\u6587\u4ef6\u505a\u5230\u78c1\u76d8\u64cd\u4f5c\u7684\u5237\u65b0\u3002\u4efb\u4f55mysqld\u8fdb\u7a0b\u7684\u5d29\u6e83\u4f1a\u5220\u9664\u5d29\u6e83\u524d\u6700\u540e\u4e00\u79d2\u7684\u4e8b\u52a1<\/span><\/span>
\ninnodb_file_per_table\uff1a\u53ef\u4ee5\u5b58\u50a8\u6bcf\u4e2aInnoDB\u8868\u548c\u5b83\u7684\u7d22\u5f15\u5728\u5b83\u81ea\u5df1\u7684\u6587\u4ef6\u4e2d\u3002<\/span><\/span>
\ntransaction-isolation=READ-COMITTED: \u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u8fd0\u884c\u5728READ-COMMITED\u9694\u79bb\u7ea7\u522b\uff0c\u505a\u6b64\u8bbe\u5b9a\u4f1a\u6709\u4e00\u5b9a\u7684\u6027\u80fd\u63d0\u5347\u3002<\/span><\/span>
\ninnodb_flush_method\uff1a \u8bbe\u7f6eInnoDB\u540c\u6b65IO\u7684\u65b9\u5f0f\uff1a<\/span><\/span>
\n   1) Default \u2013 \u4f7f\u7528fsync\uff08\uff09\u3002<\/span><\/span>
\n   2) O_SYNC \u4ee5sync\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u901a\u5e38\u6bd4\u8f83\u6162\u3002<\/span><\/span>
\n   3) O_DIRECT\uff0c\u5728Linux\u4e0a\u4f7f\u7528Direct IO\u3002\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u901f\u5ea6\uff0c\u7279\u522b\u662f\u5728RAID\u7cfb\u7edf\u4e0a\u3002\u907f\u514d\u989d\u5916\u7684\u6570\u636e\u590d\u5236\u548cdouble buffering\uff08mysql buffering \u548cOS buffering\uff09\u3002<\/span><\/span>
\ninnodb_thread_concurrency\uff1a InnoDB kernel\u6700\u5927\u7684\u7ebf\u7a0b\u6570\u3002<\/span><\/span>
\n   1) \u6700\u5c11\u8bbe\u7f6e\u4e3a(num_disks+num_cpus)*2\u3002<\/span><\/span>
\n   2) \u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u62101000\u6765\u7981\u6b62\u8fd9\u4e2a\u9650\u5236<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cinnodb\u7684\u53c2\u6570\u8bbe\u7f6e\u7684\u975e\u5e38\u5c0f\uff0c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u8fdc\u8fdc\u4e0d\u591f\u7528
\n\u6bd4\u5982\u6700\u91cd\u8981\u7684\u4e24\u4e2a\u53c2\u6570
\ninnodb_buffer_pool_size \u9ed8\u8ba4\u662f8M
\ninnodb_flush_logs_at_trx_commit \u9ed8\u8ba4\u8bbe\u7f6e\u7684\u662f1 \u4e5f\u5c31\u662f\u540c\u6b65\u5237\u65b0log(\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3)
\ninnodb_buffer_pool_size\uff1a\u8fd9\u662fInnoDB\u6700\u91cd\u8981\u7684\u8bbe\u7f6e\uff0c\u5bf9InnoDB\u6027\u80fd\u6709\u51b3\u5b9a\u6027\u7684\u5f71\u54cd\u3002\u9ed8\u8ba4\u7684\u8bbe\u7f6e\u53ea\u67098M\uff0c\u6240\u4ee5\u9ed8\u8ba4\u7684\u6570\u636e\u5e93\u8bbe\u7f6e\u4e0b\u9762InnoDB\u6027\u80fd\u5f88\u5dee\u3002\u5728\u53ea\u6709 InnoDB\u5b58\u50a8\u5f15\u64ce\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u9762\uff0c\u53ef\u4ee5\u8bbe\u7f6e60-80%\u7684\u5185\u5b58\u3002\u66f4\u7cbe\u786e\u4e00\u70b9\uff0c\u5728\u5185\u5b58\u5bb9\u91cf\u5141\u8bb8\u7684\u60c5\u51b5\u4e0b\u9762\u8bbe\u7f6e\u6bd4InnoDB tablesp... \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[130,2],"class_list":["post-320","post","type-post","status-publish","format-standard","hentry","category-db","tag-innodb","tag-MySQL"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=320"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/320\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}