{"id":1068,"date":"2009-12-14T20:37:13","date_gmt":"2009-12-14T12:37:13","guid":{"rendered":"http:\/\/www.orczhou.com\/?p=1068"},"modified":"2011-12-14T21:46:45","modified_gmt":"2011-12-14T13:46:45","slug":"more-about-mysqldump","status":"publish","type":"post","link":"https:\/\/www.orczhou.com\/index.php\/2009\/12\/more-about-mysqldump\/","title":{"rendered":"mysqldump\u62fe\u9057"},"content":{"rendered":"

mysqldump\u662fMySQL\u6570\u636e\u5e93\u5907\u4efd\u6700\u57fa\u672c\u7684\u65b9\u6cd5\uff0c\u672c\u6587\u5c06\u7b80\u5355\u7684\u4ecb\u7ecdmysqldump\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u5bb9\u6613\u5ffd\u7565\u7684\u95ee\u9898\u3002\u5305\u62ec\u57fa\u672c\u4f7f\u7528\uff0c\u548c\u4f7f\u7528\u4e2d\u7684\u9047\u5230\u4e00\u4e9b\u95ee\u9898\uff0c\u6b22\u8fce\u8ba8\u8bba\u3002<\/p>\n

1.\u57fa\u672c\u4f7f\u7528<\/font><\/p>\n

\n
\r\nmysqldump -ubackup -p --all-databases > ~\/dz_dump.sql\r\nmysqldump -ubackup -p --databases feel> ~\/feel_dump.sql #\u4ec5\u5907\u4efd\u5355\u4e2a\u6570\u636e\u5e93\r\nmysqldump -ubackup -p --no-data --all-databases> ~\/no_data.sql #\u4ec5\u5907\u4efd\u8868\u7ed3\u6784\r\n<\/pre>\n<\/div>\n

\n2.\u5173\u4e8eINFORMATION_SCHEMA<\/font><\/p>\n
information_schema\u662f\u7531mysql server\u7ef4\u62a4\u7684\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u5728\u5907\u4efd\u6570\u636e\u5e93\u7684\u65f6\u5019\uff0c\u6211\u4eec\u662f\u4e0d\u9700\u8981\u8fd9\u4e2a\u6570\u636e\u5e93\u7684\u3002\u4e8b\u5b9e\u60c5\u51b5\u4e5f\u5f88\u597d\uff0c5.0\u30015.1\u7248\u672c\u4e0b\u7684mysqldump\u90fd\u662f\u4e0d\u4f1a\u5bfc\u51fa\u8fd9\u4e2a\u6570\u636e\u5e93\u7684\u3002\u4f46\u662f4.1\u7684mysqldump\u4e0d\u4e70\u8fd9\u4e2a\u5e10\uff0c\u4f1a\u5c06information_schema\u4e00\u8d77\u5bfc\u51fa\uff0c\u8fd9\u662f\u4e0d\u5fc5\u8981\u7684\u3002\uff08\u4f7f\u75284.1\u7248\u672c\u7684mysqldump\u5fc5\u987b\u4f7f\u7528–single-transaction\u53c2\u6570\uff0c\u56e0\u4e3a\u5373\u4f7f\u662froot\u7528\u6237\u4e5f\u4e0d\u80fdlock information_schema\u91cc\u9762\u7684\u6570\u636e\u8868\uff09<\/p>\n
3.\u4f7f\u7528\u5907\u4efd\u505a\u5907\u5e93<\/font><\/p>\n
 --master-info\u53ef\u4ee5\u5e2e\u4f60\u7528\u5907\u4efd\u51fa\u6765\u7684\u6570\u636e\u505a\u4e00\u4e2a\u5907\u5e93<\/p>\n
4.\u8f83\u5927\u7684\u6570\u636e\u91cf<\/font><\/p>\n
\u5982\u679c\u4f60\u7684\u6570\u636e\u91cf\uff0c\u5230\u4e86\u51e0\u5343\u4e07\u7684\u7ea7\u522b\uff0cmysqldump\u7684\u901f\u5ea6\u5c31\u4f1a\u53d8\u7684\u5f88\u6162\uff0c\u800c\u4e14dump\u751f\u6210\u7684\u6587\u4ef6\u4f1a\u5f88\u5927\uff0c\u4f60\u60f3\u4ece\u5907\u4efd\u6062\u590d\u6570\u636e\u5e93\u65f6\u95f4\u4e5f\u4f1a\u5f88\u957f\uff0c\u8fd9\u65f6\u5019\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5bfb\u627e\u65b0\u7684\u5907\u4efd\u65b9\u6cd5\u4e86<\/p>\n
5.”Lost connection to MySQL server”<\/font><\/p>\n
\u5728\u4f7f\u7528mysqldump\u7684\u65f6\u5019\uff08\u5c24\u5176\u662f\u5411NFS\u4e0a\u5907\u4efd\u7684\u65f6\u5019\uff09\uff0c\u5f88\u591a\u4eba<\/a>\u90fd\u88ab’mysqldump:Got error:2013: Lost connection to MySQL server during query when dumping table’\u7684\u95ee\u9898\u56f0\u6270\uff0c\u5728Manual<\/a>\u4e2d\u5bf9\u8fd9\u4e2a\u95ee\u9898\u6709\u4e00\u4e9b\u7b80\u5355\u7684\u8bf4\u660e\u3002<\/p>\n
\u5728\u5411NFS\u4e0a\u5907\u4efd\u7684\u65f6\u5019\uff0c\u6570\u636e\u7684\u6d41\u5411\u662f\u8fd9\u6837\u7684\uff1aMySQL Server\u7aef\u4ece\u6570\u636e\u6587\u4ef6\u4e2d\u68c0\u7d22\u51fa\u6570\u636e\uff0c\u7136\u540e\u5206\u6279\u5c06\u6570\u636e\u8fd4\u56de\u7ed9mysqldump\u5ba2\u6237\u7aef\uff0c\u7136\u540emysqldump\u5c06\u6570\u636e\u5199\u5165\u5230NFS\u4e0a\u3002\u4e00\u822c\u5730\uff0c\u5411NFS\u4e0a\u5199\u5165\u6570\u636e\u7684\u901f\u5ea6\u8f83\u4e4bServer\u7aef\u68c0\u7d22\u53d1\u9001\u6570\u636e\u7684\u901f\u5ea6\u8981\u6162\u5f97\u591a\uff0c\u8fd9\u5c31\u4f1a\u5bfc\u81f4mysqldump\u65e0\u6cd5\u53ca\u65f6<\/strong>\u7684\u63a5\u53d7Server\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\uff0cServer\u7aef\u7684\u6570\u636e\u5c31\u4f1a\u79ef\u538b\u5728\u5185\u5b58\u4e2d\u7b49\u5f85<\/strong>\u53d1\u9001\uff0c\u8fd9\u4e2a\u7b49\u5f85\u4e0d\u662f\u65e0\u9650\u671f\u7684\uff0c\u5f53Server\u7684\u7b49\u5f85\u65f6\u95f4\u8d85\u8fc7net_write_timeout<\/a>\uff08\u9ed8\u8ba4\u662f60\u79d2\uff09\u65f6\u5b83\u5c31\u5931\u53bb\u4e86\u8010\u5fc3\uff0cmysqldump\u7684\u8fde\u63a5\u4f1a\u88ab\u65ad\u5f00\uff0c\u540c\u65f6\u629b\u51fa\u9519\u8befGot error: 2013: Lost connection\u3002<\/p>\n
\u589e\u52a0net_write_timeout\u53ef\u4ee5\u89e3\u51b3\u4e0a\u8ff0\u7684\u95ee\u9898\u7684<\/strong>\u3002\u5728\u5b9e\u8df5\u4e2d\u53d1\u73b0\uff0c\u5728\u589e\u5927net_write_timeout\u540e\uff0cServer\u7aef\u4f1a\u6d88\u8017\u66f4\u591a\u7684\u5185\u5b58\uff0c\u6709\u65f6\u751a\u81f3\u4f1a\u5bfc\u81f4swap\u7684\u4f7f\u7528\uff08\u5e76\u4e0d\u786e\u5b9a\u662f\u4e0d\u662f\u4fee\u6539net_write_timeout\u6240\u81f3\uff09\u3002\u5efa\u8bae\u5728mysqldump\u4e4b\u524d\u4fee\u6539net_write_timeout\u4e3a\u4e00\u4e2a\u8f83\u5927\u7684\u503c\uff08\u59821800\uff09\uff0c\u5728mysqldump\u7ed3\u675f\u540e\uff0c\u5728\u5c06\u8fd9\u4e2a\u503c\u4fee\u6539\u5230\u9ed8\u8ba4\u768460\u3002<\/p>\n
6.\u5907\u4efd\u548c\u6062\u590d\u901f\u5ea6<\/font><\/p>\n
\u7ecf\u9a8c\u503c\uff1a\u67d0\u4e2a\u5907\u4efd\u51fa\u7684.sql\u6587\u4ef6\u5927\u5c0f\u4e3a39GB\uff0c\u5907\u4efd\u8017\u65f6\u7ea680\u5206\u949f\uff1b\u5728\u6d4b\u8bd5\u6062\u590d\u4e2d\uff0c\u53d1\u73b0\u9700\u8981\u7ea6206\u5206\u949f\u3002\u73af\u5883\uff1aQuad-Core AMD Opteron(tm) 4*2\u683832G\u5185\u5b58\uff1b<\/p>\n
7.\u5176\u4ed6<\/font><\/p>\n
**<\/font>**<\/font>*\u5907\u4efd\u4e0d\u8981\u5728\u6570\u636e\u5e93\u538b\u529b\u8f83\u5927\u7684\u65f6\u5019\u8fdb\u884c\uff0c\u6bcf\u5929\u51cc\u6668\u5907\u4efd\u662f\u6bd4\u8f83\u5408\u9002\u7684<\/p>\n
**<\/font>**<\/font>*\u5982\u679c\u662f\u4e8b\u52a1\u578b\u5f15\u64ce\uff08InnoDB\uff09\uff0c\u5efa\u8bae\u4f7f\u7528--single-transaction\u53c2\u6570\uff0c\u8fd9\u6837\u53ef\u4ee5\u8ba9\u9501\u8868\u65f6\u95f4\u53d8\u5f97\u5f88\u77ed<\/p>\n
\u53c2\u8003\uff1a<\/p>\n
    \n
  1. Manual about mysqldump<\/a><\/li>\n
  2. Manual about Lost Connection<\/a><\/li>\n
  3. Manual about net_write_timeout<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
    mysqldump\u662fMySQL\u6570\u636e\u5e93\u5907\u4efd\u6700\u57fa\u672c\u7684\u65b9\u6cd5\uff0c\u672c\u6587\u5c06\u7b80\u5355\u7684\u4ecb\u7ecdmysqldump\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u5bb9\u6613\u5ffd\u7565\u7684\u95ee\u9898\u3002\u5305\u62ec\u57fa\u672c\u4f7f\u7528\uff0c\u548c\u4f7f\u7528\u4e2d\u7684\u9047\u5230\u4e00\u4e9b\u95ee\u9898\uff0c\u6b22\u8fce\u8ba8\u8bba\u3002 1.\u57fa\u672c\u4f7f\u7528 mysqldump -ubackup -p –all-databases > ~\/dz_dump.sql mysqldump -ubackup -p –databases feel> ~\/feel_dump.sql #\u4ec5\u5907\u4efd\u5355\u4e2a\u6570\u636e\u5e93 mysqldump -ubackup -p –no-data –all-databases> ~\/no_data.sql #\u4ec5\u5907\u4efd\u8868\u7ed3\u6784<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","inline_featured_image":false,"_tocer_settings":[],"footnotes":""},"categories":[6],"tags":[8,10],"class_list":["post-1068","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysqldump","tag-10"],"_links":{"self":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/1068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/comments?post=1068"}],"version-history":[{"count":18,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/1068\/revisions"}],"predecessor-version":[{"id":3377,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/posts\/1068\/revisions\/3377"}],"wp:attachment":[{"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/media?parent=1068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/categories?post=1068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orczhou.com\/index.php\/wp-json\/wp\/v2\/tags?post=1068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}