{"id":76426,"date":"2024-10-16T06:34:16","date_gmt":"2024-10-15T22:34:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76426\/"},"modified":"2024-10-16T06:34:17","modified_gmt":"2024-10-15T22:34:17","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%89%93%e9%96%8b%e6%96%87%e4%bb%b6%e5%a4%aa%e5%a4%9a%e5%b0%8e%e8%87%b4mysqldump%e5%87%ba%e9%8c%af%e7%9a%84%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76426\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u6253\u958b\u6587\u4ef6\u592a\u591a\u5c0e\u81f4mysqldump\u51fa\u932f\u7684\u89e3\u6c7a"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%89%93%e9%96%8b%e6%96%87%e4%bb%b6%e5%a4%aa%e5%a4%9a%e5%b0%8e%e8%87%b4mysqldump%e5%87%ba%e9%8c%af%e7%9a%84%e8%a7%a3%e6%b1%ba-QCSxyFoHdF\">MySQL\u6578\u64da\u5eab\u6253\u958b\u6587\u4ef6\u592a\u591a\u5c0e\u81f4mysqldump\u51fa\u932f\u7684\u89e3\u6c7a<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u7d93\u5e38\u6703\u9047\u5230\u5404\u7a2e\u554f\u984c\uff0c\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\u662f\u7576\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u8d85\u904e\u7cfb\u7d71\u9650\u5236\u6642\uff0cmysqldump\u547d\u4ee4\u6703\u51fa\u73fe\u932f\u8aa4\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u6703\u5c0e\u81f4\u6578\u64da\u5099\u4efd\u5931\u6557\uff0c\u5f71\u97ff\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u554f\u984c\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e5%95%8f%e9%a1%8c%e5%8e%9f%e5%9b%a0-QCSxyFoHdF\">\u554f\u984c\u539f\u56e0<\/h2>\n<p>MySQL\u7684mysqldump\u5de5\u5177\u7528\u65bc\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4f46\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\uff0c\u82e5\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u8d85\u904e\u4e86\u7cfb\u7d71\u7684\u9650\u5236\uff0c\u5c31\u6703\u5c0e\u81f4mysqldump\u51fa\u932f\u3002\u9019\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u7cfb\u7d71\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\uff1a<\/strong>\u6bcf\u500b\u64cd\u4f5c\u7cfb\u7d71\u90fd\u6709\u4e00\u500b\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u9650\u5236\uff0c\u9019\u610f\u5473\u8457\u540c\u6642\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u662f\u6709\u9650\u7684\u3002\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u9019\u500b\u9650\u5236\u53ef\u4ee5\u901a\u904e\u547d\u4ee4<code>ulimit -n<\/code>\u4f86\u67e5\u770b\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u9023\u63a5\u6578\u91cf\uff1a<\/strong>\u5982\u679c\u540c\u6642\u6709\u591a\u500b\u7528\u6236\u6216\u61c9\u7528\u7a0b\u5e8f\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\uff0c\u9019\u4e5f\u6703\u589e\u52a0\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u3002<\/li>\n<li><strong>\u5927\u578b\u6578\u64da\u5eab\uff1a<\/strong>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u5eab\uff0cmysqldump\u5728\u5099\u4efd\u904e\u7a0b\u4e2d\u53ef\u80fd\u9700\u8981\u6253\u958b\u5927\u91cf\u7684\u8868\u548c\u7d22\u5f15\uff0c\u9019\u6703\u8fc5\u901f\u6d88\u8017\u53ef\u7528\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-QCSxyFoHdF\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7amysqldump\u56e0\u6253\u958b\u6587\u4ef6\u904e\u591a\u800c\u51fa\u932f\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%a2%9e%e5%8a%a0%e7%b3%bb%e7%b5%b1%e6%96%87%e4%bb%b6%e6%8f%8f%e8%bf%b0%e7%ac%a6%e9%99%90%e5%88%b6-QCSxyFoHdF\">1. \u589e\u52a0\u7cfb\u7d71\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236<\/h3>\n<p>\u9996\u5148\uff0c\u53ef\u4ee5\u901a\u904e\u4fee\u6539\u7cfb\u7d71\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\u4f86\u89e3\u6c7a\u554f\u984c\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7576\u524d\u7684\u9650\u5236\uff1a<\/p>\n<pre><code>ulimit -n<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u9650\u5236\u8f03\u4f4e\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u81e8\u6642\u589e\u52a0\u9650\u5236\uff1a<\/p>\n<pre><code>ulimit -n 65535<\/code><\/pre>\n<p>\u8981\u6c38\u4e45\u66f4\u6539\u6b64\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u7de8\u8f2f<code>\/etc\/security\/limits.conf<\/code>\u6587\u4ef6\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>* soft nofile 65535\n* hard nofile 65535<\/code><\/pre>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4mysql%e9%85%8d%e7%bd%ae-QCSxyFoHdF\">2. \u8abf\u6574MySQL\u914d\u7f6e<\/h3>\n<p>\u5728MySQL\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\uff08\u901a\u5e38\u662f<code>\/etc\/my.cnf<\/code>\uff09\uff0c\u53ef\u4ee5\u589e\u52a0\u4ee5\u4e0b\u53c3\u6578\u4f86\u63d0\u9ad8\u9023\u63a5\u6578\u91cf\uff1a<\/p>\n<pre><code>[mysqld]\nmax_connections = 200<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fddMySQL\u80fd\u5920\u8655\u7406\u66f4\u591a\u7684\u9023\u63a5\uff0c\u5f9e\u800c\u6e1b\u5c11mysqldump\u904e\u7a0b\u4e2d\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%88%86%e6%ae%b5%e5%82%99%e4%bb%bd-QCSxyFoHdF\">3. \u4f7f\u7528\u5206\u6bb5\u5099\u4efd<\/h3>\n<p>\u5c0d\u65bc\u5927\u578b\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u6bb5\u5099\u4efd\u7684\u65b9\u6cd5\u3002\u9019\u610f\u5473\u8457\u5c07\u6578\u64da\u5eab\u5206\u6210\u591a\u500b\u5c0f\u90e8\u5206\u9032\u884c\u5099\u4efd\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6bcf\u6b21\u5099\u4efd\u6642\u9700\u8981\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5099\u4efd\u7279\u5b9a\u7684\u8868\uff1a<\/p>\n<pre><code>mysqldump -u username -p database_name table_name &gt; backup.sql<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e4%b8%a6%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab-QCSxyFoHdF\">4. \u6aa2\u67e5\u4e26\u512a\u5316\u6578\u64da\u5eab<\/h3>\n<p>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u6578\u64da\u5eab\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u8868\u548c\u7d22\u5f15\uff0c\u5f9e\u800c\u964d\u4f4emysqldump\u904e\u7a0b\u4e2d\u6253\u958b\u7684\u6587\u4ef6\u6578\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u512a\u5316\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>OPTIMIZE TABLE table_name;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QCSxyFoHdF\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5099\u4efd\u6642\uff0cmysqldump\u51fa\u932f\u7684\u554f\u984c\u5f80\u5f80\u8207\u7cfb\u7d71\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\u6709\u95dc\u3002\u901a\u904e\u589e\u52a0\u7cfb\u7d71\u9650\u5236\u3001\u8abf\u6574MySQL\u914d\u7f6e\u3001\u4f7f\u7528\u5206\u6bb5\u5099\u4efd\u4ee5\u53ca\u5b9a\u671f\u512a\u5316\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u9019\u4e9b\u63aa\u65bd\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u5099\u4efd\u7684\u6210\u529f\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aMySQL\u6578\u64da\u5eab\u56e0\u6253\u958b\u6587\u4ef6\u904e\u591a\u5c0e\u81f4mysqldump\u51fa\u932f\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u8abf\u6574\u548c\u512a\u5316\u5efa\u8b70\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-76426","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=76426"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76426\/revisions"}],"predecessor-version":[{"id":76427,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76426\/revisions\/76427"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}