{"id":29016,"date":"2023-04-19T21:49:21","date_gmt":"2023-01-19T06:52:14","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8mariadb%e4%b8%ad%ef%bc%8c%e6%9c%89%e5%a4%aa%e5%a4%9a%e7%9a%84sleep%e8%bf%9b%e7%a8%8b%e5%af%bc%e8%87%b4%e4%ba%86%e6%89%93%e5%bc%80%e6%96%87%e4%bb%b6%e8%bf%87%e5%a4%9a%e9%94%99%e8%af%af\/"},"modified":"2025-08-12T11:20:10","modified_gmt":"2025-08-12T03:20:10","slug":"%e5%9c%a8mariadb%e4%b8%ad%ef%bc%8c%e6%9c%89%e5%a4%aa%e5%a4%9a%e7%9a%84sleep%e8%bf%9b%e7%a8%8b%e5%af%bc%e8%87%b4%e4%ba%86%e6%89%93%e5%bc%80%e6%96%87%e4%bb%b6%e8%bf%87%e5%a4%9a%e9%94%99%e8%af%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8mariadb%e4%b8%ad%ef%bc%8c%e6%9c%89%e5%a4%aa%e5%a4%9a%e7%9a%84sleep%e8%bf%9b%e7%a8%8b%e5%af%bc%e8%87%b4%e4%ba%86%e6%89%93%e5%bc%80%e6%96%87%e4%bb%b6%e8%bf%87%e5%a4%9a%e9%94%99%e8%af%af\/","title":{"rendered":"\u5728MariaDB\u4e2d\uff0c\u6709\u592a\u591a\u7684sleep\u8fdb\u7a0b\u5bfc\u81f4\u4e86&#8221;\u6253\u5f00\u6587\u4ef6\u8fc7\u591a&#8221;\u9519\u8bef\u7684\u5904\u7406\u63aa\u65bd"},"content":{"rendered":"<p>\u5728\u8fd9\u91cc\u8bb0\u5f55\u4e86\u4e00\u4efd\u7b80\u7565\u7684\u5907\u5fd8\u5f55\uff0c\u7528\u4e8e\u8c03\u67e5\u65c1\u8fb9\u53d1\u751f\u7684\u4e8b\u4ef6\u3002\u9664\u4e86\u8fd9\u91cc\u5199\u7684\uff0c\u8fd8\u53ef\u80fd\u9700\u8981\u5728\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u65bd\u8fde\u63a5\u6c60\u3002<\/p>\n<h3>\u7761\u7720\u65f6\u95f4\u6bd4\u8f83\u957f\u7684\u60c5\u51b5<\/h3>\n<p>\u4e00\u4e9b\u6587\u7ae0\u5efa\u8bae\u5c06wait_timeout\u8bbe\u7f6e\u5f97\u66f4\u77ed\u4e00\u4e9b\uff08\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528set global\u8fdb\u884c\u5728\u7ebf\u66f4\u65b0\uff09\u3002<br \/>\n\u5728MySQL\u4e2d\uff0c\u5904\u7406\u51fa\u73b0\u201cToo many connections\u201d\u95ee\u9898\u7684\u65b9\u6cd5 &#8211; \u5bb9\u6613\u7406\u89e3\u7684\u7cfb\u7edf\u5f00\u53d1\u5907\u5fd8\u5f55 | MySQL &#8211; sleep\u8fdb\u7a0b\u7684\u79ef\u7d2f<\/p>\n<p>\u5df2\u7ecf\u76f8\u5f53\u77ed\u4e86\u5417\u2193\uff0c\u6211\u4ee5\u4e3a\u662f\u4ece60\u7f29\u77ed\u523040\u8fdb\u884c\u4e86\u54a8\u8be2\u7684\u60c5\u51b5\u3002<br \/>\n\u2192 \u6839\u636e show full proccesslist; \u7684\u89c2\u611f\uff0c\u9664\u4e86 replication \u4e4b\u5916\u7684\u7528\u6237\u6ca1\u6709\u8d85\u8fc740\u79d2\u7684 sleep \u8fdb\u7a0b\u3002<br \/>\n\u901a\u8fc7 show global status; \u89c2\u5bdf\u5230 Max_userd_connections \u6ca1\u6709\u589e\u52a0\uff0c<br \/>\nthread_cache_size \u548c max_connections \u4f3c\u4e4e\u5df2\u7ecf\u8db3\u591f\u4e86\u3002<br \/>\n\u2192 \u770b\u8d77\u6765\u4e0d\u9700\u8981\u8c03\u6574\u5176\u4ed6\u8d85\u65f6\u503c\uff0c\u5e94\u8be5\u6ca1\u95ee\u9898\u3002<\/p>\n<pre class=\"post-pre\"><code>MariaDB [(none)]&gt; show global variables like '%timeout%';\r\n+----------------------------+----------+\r\n| Variable_name              | Value    |\r\n+----------------------------+----------+\r\n| connect_timeout            | 10       |\r\n| deadlock_timeout_long      | 50000000 |\r\n| deadlock_timeout_short     | 10000    |\r\n| delayed_insert_timeout     | 300      |\r\n| innodb_lock_wait_timeout   | 50       |\r\n| innodb_rollback_on_timeout | OFF      |\r\n| interactive_timeout        | 28800    |\r\n| lock_wait_timeout          | 31536000 |\r\n| net_read_timeout           | 30       |\r\n| net_write_timeout          | 60       |\r\n| slave_net_timeout          | 30       |\r\n| thread_pool_idle_timeout   | 60       |\r\n| wait_timeout               | 40       |\r\n+----------------------------+----------+\r\n13 rows in set (0.01 sec)\r\n<\/code><\/pre>\n<p>\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u5728\u539f\u72485.7\u91cc\u9762\u6709\u4e00\u4e2a\u53c2\u6570\u53eb\u505amax_execution_time\uff0c\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u7aef\u8bbe\u7f6e\u67e5\u8be2\u8d85\u65f6\u65f6\u95f4\u3002<\/p>\n<p>MySQL 5.7\u7684\u8be6\u7ec6\u89e3\u91ca\uff0c\u662f\u4e00\u672c\u6280\u672f\u6307\u5357\uff0c\u65e8\u5728\u4e0d\u843d\u540e\u4e8e\u4e0d\u505c\u8fdb\u5316\u7684\u53d1\u5c55\uff08\u5965\u91ce\u5e79\u4e5f\u8457\uff09 | \u51fa\u7248\u793e\u4e3a\u7fd4\u6cf3\u793e\u3002<\/p>\n<p>\u7136\u800c\u5728MariaDB\u4e2d\uff0c\u4f3c\u4e4e\u65e0\u6cd5\u572810.1\u7248\u672c\u4e2d\u8fdb\u884c\u8be5\u8bbe\u7f6e\u2193\u3002<\/p>\n<p>MariaDB 10.1\u548cMySQL 5.7\u4e4b\u95f4\u7684\u7cfb\u7edf\u53d8\u91cf\u5dee\u5f02 &#8211; MariaDB\u77e5\u8bc6\u5e93<\/p>\n<h3>\u9488\u5bf9\u6253\u5f00\u7684\u6587\u4ef6\u8fc7\u591a\u7684\u5bf9\u7b56<\/h3>\n<p>\u73b0\u5728\u867d\u7136\u6ca1\u6709\u51fa\u73b0\u9519\u8bef\u65e5\u5fd7\uff0c\u4f46\u4e3a\u4e86\u4ee5\u9632\u4e07\u4e00\uff0c\u5c06\u9650\u5236\u8bbe\u7f6e\u4e3a\u65e0\u9650\u5236\u5e94\u8be5\u662f\u4e2a\u597d\u4e3b\u610f\u3002<\/p>\n<p>\u5728CentOS 7\u4e0a\u7684MariaDB\u51fa\u73b0\u4e86\u201c\u63a5\u53d7\u9519\u8bef\uff1a\u6253\u5f00\u6587\u4ef6\u8fc7\u591a\u201d\u3002<\/p>\n<p>\u7531\u4e8eCentOS7\u7cfb\u7edf\u7248\u672c\uff0c\u9700\u8981\u5728\/usr\/lib\/systemd\/system\/mariadb.service\u6587\u4ef6\u7684[service]\u6bb5\u843d\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff0c\u7136\u540e\u91cd\u65b0\u52a0\u8f7dsystemctl\u5b88\u62a4\u7a0b\u5e8f\u4ee5\u91cd\u65b0\u542f\u52a8mariadb\u8fdb\u7a0b\uff1a<br \/>\nLimitNOFILE=infinity<\/p>\n<h3>MySQL\u8c03\u6574\u5668<\/h3>\n<pre class=\"post-pre\"><code>`query_cache_limit (&gt; 1M, or use smaller result sets)`\r\n<\/code><\/pre>\n<p>\u6570\u636e\u5e93\u7684\u7f13\u5b58\u4f3c\u4e4e\u51e0\u4e4e\u6ca1\u6709\u4f7f\u7528\uff0c\u662f\u5426\u8003\u8651\u51cf\u5c11\u9650\u5236\u5462\uff1f<\/p>\n<pre class=\"post-pre\"><code>`innodb_buffer_pool_instances(=22)`\r\n<\/code><\/pre>\n<p>\u636e\u624b\u518c\u4e0a\u7684\u8bf4\u6cd5\uff0c\u5c06innodb_buffer_pool_size\u9664\u4ee51GB\u7684\u7ed3\u679c\u662f\u6709\u6548\u7684\u3002\u6839\u636eMySQL 5.6\u53c2\u8003\u624b\u518c\u768414.13.1.4\u8282\u201c\u4f7f\u7528\u591a\u4e2a\u7f13\u51b2\u6c60\u5b9e\u4f8b\u201d\uff0c\u8be5\u503c\u57285.6\u7248\u672c\u4e2d\u4e0d\u652f\u6301\u52a8\u6001\u66f4\u6539\uff0c\u5982\u679c\u8981\u66f4\u6539\uff0c\u9700\u8981\u5728my.cnf\u6587\u4ef6\u4e2d\u8fdb\u884c\u8ffd\u52a0\uff0c\u5e76\u91cd\u65b0\u542f\u52a8mariadb\u3002\u6839\u636eMySQL 5.6\u53c2\u8003\u624b\u518c\u768414.12\u8282\u201cInnoDB\u542f\u52a8\u9009\u9879\u548c\u7cfb\u7edf\u53d8\u91cf\u201d\uff0c\u53ef\u4ee5\u4e86\u89e3\u66f4\u591a\u76f8\u5173\u4fe1\u606f\u3002<\/p>\n<h3>\u5c55\u793a\u5168\u7403\u72b6\u6001\uff1b\u4ee5\u67e5\u770b\u6982\u8981\u3002<\/h3>\n<p>\u7531\u4e8e&#8221;Created_tmp_disk_tables&#8221;\u548c&#8221;Sort_merge_passes&#8221;\u7b49\u81f4\u547d\u95ee\u9898\u7684\u503c\u4e3a0\uff0c\u6240\u4ee5\u6211\u8ba4\u4e3a\u5e94\u8be5\u8fd8\u597d\u3002<\/p>\n<p>http:\/\/dbstudy.info\/files\/20130318\/tuningathon5_mysql56.pdf \u53ef\u5728\u6b64\u94fe\u63a5\u4e2d\u627e\u5230\u6709\u5173\u4e8eMySQL5.6\u4f18\u5316\u7684\u6587\u4ef6\u3002<br \/>\nhttp:\/\/qiita.com\/tyoro\/items\/5436a5172b547e5e52f5 \u8fd9\u4e2a\u94fe\u63a5\u4e2d\u53ef\u4ee5\u627e\u5230\u76f8\u5173\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u6211\u5728\u641c\u7d22\u65f6\u4f3c\u4e4e\u8bb0\u5f97\u8fde\u63a5\u6c60\u5728\u5546\u4e1a\u7248\u672c\u4e2d\u6709\u6240\u4e0d\u540c\u3002\u8fd9\u4e2a\u662f\u6307\u7684\u5417\uff1fMySQL :: MySQL\u4f01\u4e1a\u7ea7\u53ef\u6269\u5c55\u6027\u3002<\/p>\n<p>\u4ee5\u4e0a \u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u8fd9\u91cc\u8bb0\u5f55\u4e86\u4e00\u4efd\u7b80\u7565\u7684\u5907\u5fd8\u5f55\uff0c\u7528\u4e8e\u8c03\u67e5\u65c1\u8fb9\u53d1\u751f\u7684\u4e8b\u4ef6\u3002\u9664\u4e86\u8fd9\u91cc\u5199\u7684\uff0c\u8fd8\u53ef\u80fd\u9700\u8981\u5728\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b9e\u65bd\u8fde\u63a5\u6c60\u3002  [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-29016","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5728MariaDB\u4e2d\uff0c\u6709\u592a\u591a\u7684sleep\u8fdb\u7a0b\u5bfc\u81f4\u4e86&quot;\u6253\u5f00\u6587\u4ef6\u8fc7\u591a&quot;\u9519\u8bef\u7684\u5904\u7406\u63aa\u65bd - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5728MariaDB\u4e2d\uff0c\u6709\u592a\u591a\u7684sleep\u8fdb\u7a0b\u5bfc\u81f4\u4e86&quot;\u6253\u5f00\u6587\u4ef6\u8fc7\u591a&quot;\u9519\u8bef\u7684\u5904\u7406\u63aa\u65bd\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" 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