{"id":25725,"date":"2010-03-16T13:47:36","date_gmt":"2010-03-16T05:47:36","guid":{"rendered":"http:\/\/www.yankay.com\/?p=25725"},"modified":"2010-03-16T13:47:36","modified_gmt":"2010-03-16T05:47:36","slug":"nosql%e7%9a%84%e7%9c%9f%e7%9b%b8%e5%92%8c%e8%b0%8e%e8%a8%80","status":"publish","type":"post","link":"http:\/\/yankay.com\/nosql%e7%9a%84%e7%9c%9f%e7%9b%b8%e5%92%8c%e8%b0%8e%e8%a8%80\/","title":{"rendered":"\u53cdNoSQL\u7684\u547c\u58f0"},"content":{"rendered":"<h3>CAP\u7684\u5d29\u6e83<\/h3>\n<p><a href=\"http:\/\/www.yankay.com\/wp-content\/uploads\/2010\/03\/media_httpfarm5static_mevIk_png_scaled1000.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-25749\" title=\"media_httpfarm5static_mevIk_png_scaled1000\" src=\"http:\/\/www.yankay.com\/wp-content\/uploads\/2010\/03\/media_httpfarm5static_mevIk_png_scaled1000-300x225.png\" alt=\"\" width=\"300\" height=\"225\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.julianbrowne.com\/article\/viewer\/brewers-cap-theorem\">CAP\u731c\u60f3<\/a>\u53ef\u662fNoSQL\u7684\u57fa\u77f3\u3002\u4e0a\u56fe\u975e\u5e38\u6709\u610f\u601d\uff0c\u4ed6\u4eceCAP,\u548c\u6570\u636e\u5e93\u79cd\u7c7b\u4e24\u4e2a\u65b9\u5411\u5bf9NoSQL\u8fdb\u884c\u4e86\u5206\u7c7b\u3002<\/p>\n<p><strong>Consistent, Available <\/strong><strong>(CA) <\/strong><strong>Systems<\/strong> \u3002\u5728\u5206\u5e03\u5f0f\u65b9\u9762\u6709\u4e9b\u95ee\u9898\uff0c\u901a\u5e38\u662f\u901a\u8fc7\u590d\u5236\u6765\u89e3\u51b3\u7684\u3002\u5305\u62ec<\/p>\n<ul>\n<li>Traditional RDBMSs like Postgres, MySQL, etc (relational)<\/li>\n<li>Vertica (column-oriented)<\/li>\n<li>Aster Data (relational)<\/li>\n<li>Greenplum (relational)<\/li>\n<\/ul>\n<p><strong>Consistent, Partition-Tolerant <\/strong><strong>(CP) <\/strong><strong>Systems<\/strong> \u3002\u53ef\u7528\u6027\u4e0a\u6709\u95ee\u9898\u4f46\u662f\u5728\u5404\u8282\u70b9\u6570\u636e\u4fdd\u5b58\u4e00\u76f4\u3002\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><a href=\"http:\/\/labs.google.com\/papers\/bigtable.html\" target=\"_blank\" rel=\"noopener\">BigTable<\/a> (column-oriented\/tabular)<\/li>\n<li><a href=\"http:\/\/hypertable.org\/\" target=\"_blank\" rel=\"noopener\">Hypertable<\/a> (column-oriented\/tabular)<\/li>\n<li><a href=\"http:\/\/hadoop.apache.org\/hbase\/\" target=\"_blank\" rel=\"noopener\">HBase<\/a> (column-oriented\/tabular)<\/li>\n<li><a href=\"http:\/\/www.mongodb.org\/display\/DOCS\/Home\" target=\"_blank\" rel=\"noopener\">MongoDB<\/a> (document-oriented)<\/li>\n<li><a href=\"http:\/\/code.google.com\/p\/terrastore\/\" target=\"_blank\" rel=\"noopener\">Terrastore<\/a> (document-oriented)<\/li>\n<li><a href=\"http:\/\/code.google.com\/p\/redis\/\" target=\"_blank\" rel=\"noopener\">Redis<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/code.google.com\/p\/scalaris\/\" target=\"_blank\" rel=\"noopener\">Scalaris<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/memcachedb.org\/\" target=\"_blank\" rel=\"noopener\">MemcacheDB<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/en.wikipedia.org\/wiki\/Berkeley_DB\" target=\"_blank\" rel=\"noopener\">Berkeley DB<\/a> (key-value)<\/li>\n<\/ul>\n<p><strong>Available, Partition-Tolerant <\/strong><strong>(AP) <\/strong><strong>Systems<\/strong> \u80fd\u591f\u4f7f\u7528\u201c\u6700\u7ec8\u4e00\u81f4\u6027\u201d\u4fdd\u8bc1\u4e00\u76f4\u3002\u5305\u62ec<\/p>\n<ul>\n<li><a href=\"http:\/\/s3.amazonaws.com\/AllThingsDistributed\/sosp\/amazon-dynamo-sosp2007.pdf\" target=\"_blank\" rel=\"noopener\">Dynamo<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/project-voldemort.com\/\" target=\"_blank\" rel=\"noopener\">Voldemort<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/1978th.net\/\" target=\"_blank\" rel=\"noopener\">Tokyo Cabinet<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/sourceforge.net\/projects\/kai\/\" target=\"_blank\" rel=\"noopener\">KAI<\/a> (key-value)<\/li>\n<li><a href=\"http:\/\/incubator.apache.org\/cassandra\/\" target=\"_blank\" rel=\"noopener\">Cassandra<\/a> (column-oriented\/tabular)<\/li>\n<li><a href=\"http:\/\/couchdb.apache.org\/\" target=\"_blank\" rel=\"noopener\">CouchDB<\/a> (document-oriented)<\/li>\n<li><a href=\"http:\/\/aws.amazon.com\/simpledb\/\" target=\"_blank\" rel=\"noopener\">SimpleDB<\/a> (document-oriented)<\/li>\n<li><a href=\"http:\/\/riak.basho.com\/\" target=\"_blank\" rel=\"noopener\">Riak<\/a> (document-oriented)<\/li>\n<\/ul>\n<p>\u5c04\u4eba\u5148\u5c04\u9a6c\uff0c\u64d2\u8d3c\u5148\u64d2\u738b\u3002\u867d\u7136CAP\u53ea\u662f\u4e2a\u7ecf\u9a8c\u6027\u603b\u7ed3\uff0c\u4f46\u662f\u53cdNoSQL\u7684\u7c07\u62e5\u4eec\u514d\u4e0d\u4e86\u8981\u5bf9CAP\u5148\u4e0b\u6bd2\u624b\u3002<\/p>\n<p><a href=\"http:\/\/www.google.com\/url?sa=D&amp;q=http:\/\/citeseerx.ist.psu.edu\/viewdoc\/download%3Fdoi%3D10.1.1.20.1495%26rep%3Drep1%26type%3Dpdf&amp;usg=AFQjCNHxyVgMRZr2nt4qgHem9aaXlwmEbw\">CAP\u7684\u8bc1\u660e<\/a>\u3002\u5927\u4f53\u903b\u8f91\u662f\u5982\u679c\u8981\u5206\u5e03\u5f0f\uff0c\u90a3\u4e48\u66f4\u65b0\u6570\u636e\u7684\u65f6\u5019\uff0c\u8981\u4e48\u52a0\u9501(\u6216\u5176\u4ed6\u6280\u672f)\u4fdd\u8bc1\u4e00\u81f4\uff0c\u8981\u4e48\u4e0d\u52a0\u9501\u4fdd\u8bc1\u53ef\u7528\uff1b\u5982\u679c\u4e24\u4e2a\u90fd\u60f3\u4fdd\u8bc1\uff0c\u5c31\u4e0d\u80fd\u5206\u5e03\u5f0f\u4e86\u3002\u53ef\u4ee5\u770b\u5f97\u51fa\uff0c\u8fd9\u4e2a\u8bc1\u660e\u5f88\u7c97\u7565\uff0c\u6ca1\u6709\u4ec0\u4e48\u6570\u5b66\u516c\u5f0f\u5565\u7684\u3002\u81ea\u7136\u4f1a\u88ab\u4eba\u94bb\u725b\u89d2\u5c16\u3002<\/p>\n<p>\u6709\u4eba\u8bf4\uff0c\u4e3a\u4ec0\u4e48\u4e00\u5b9a\u8981\u52a0\u9501\u624d\u80fd\u4fdd\u8bc1\u4e00\u81f4\uff1f\u56e0\u4e3a\u6570\u636e\u603b\u662f\u4ee5\u4e32\u884c\u7684\u8fdb\u5165\u7684\uff0c\u6240\u4ee5\u662f\u4e00\u81f4\u7684\u3002\u5982\u679c\u4fdd\u6301\u6570\u636e\u4e0d\u4e32\u884c\u8fdb\u5165\u800c\u4e14\u540c\u65f6\u4fdd\u8bc1\u4e00\u81f4\u6027\u5462\uff1f<\/p>\n<p>\u6570\u636e\u7684\u66f4\u65b0\u4e0d\u662f\u65b0\u6570\u636e\u66ff\u6362\u6389\u65e7\u6570 \u636e\uff0c\u5c31\u7b97\u662f\u987a\u5e8f\u53d1\u751f\u9519\u8bef\uff0c\u4e5f\u662f\u4e00\u81f4\u7684\u3002\u5728\u5b9e\u73b0\u4e0a\u53ef\u4ee5\u8bf4\u662f\u6570\u636e\u5e93\u6709\u4e00\u4e2aAgent\u53ef\u4ee5\u4ee5\u4e00\u79cd\u79ef\u6781\u7684\u6001\u5ea6\u6765\u9632\u6b62\u51fa\u73b0\u975e\u4e00\u81f4\u66f4\u65b0\u3002\u8fd9\u79cd\u7cfb\u7edf\u6709\u5982\u4e0b\u7279\u70b9\uff1a<\/p>\n<ul>\n<li>\u652f\u6301\u4e8b\u52a1\uff0c\u6bcf\u4e2a\u4e8b\u7269\u90fd\u662f\u539f\u5b50\u64cd\u4f5c<\/li>\n<li>\u5728\u4e8b\u52a1\u63d0\u4ea4\u9636\u6bb5\u53ef\u4ee5\u53d1\u73b0\u4e0d\u4e00\u81f4\u73b0\u8c61\uff0c\u5e76\u52a0\u4ee5\u5236\u6b62<\/li>\n<li>\u4e8b\u52a1\u63d0\u4ea4\u7b97\u6cd5\u652f\u6301\u5206\u5e03\u5f0f<\/li>\n<\/ul>\n<p>\u6211\u89c9\u5f97\u4e5f\u53ef\u4ee5\u662f\u4e00\u79cd\u65b0\u578b\u7684\u6570\u636e\u7ed3\u6784\u5b9e\u73b0\u3002<\/p>\n<p>\u6240\u4ee5CAP\u5e94\u8be5\u79f0\u4e3aSAP<\/p>\n<p>\u4e0a\u9762\u8fd9\u6bb5\u6587\u5b57\u662f\u4ece\u7406\u8bba\u5c42\u9762\u7684\u53cd\u9a73\uff0c\u5c3d\u7ba1\u770b\u8d77\u6765\u5934\u5934\u662f\u9053\u3002\u3002\u3002\u3002\u8bf4\u4e0d\u5b9a\u662f\u4e2a\u597d\u60f3\u6cd5\uff0c\u53ef\u4ee5\u8bd5\u4e00\u8bd5\u3002\u6bd4\u5982\u5c06\u6570\u636e\u5e93\u65e5\u5fd7\u5316\uff0c\u6216\u8005\u6839\u636e\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u7684\u552f\u4e00ID\uff0c\u6765\u8bc6\u522b\u5148\u540e\u3002\u518d\u4ed4\u7ec6\u60f3\u60f3\uff0c\u8bf4\u4e0d\u5b9a\u633a\u6709\u610f\u601d\u7684\u3002<\/p>\n<h3>RDBMS\u4e0d\u5177\u5907\u53ef\u6269\u5c55\u6027\u7684\u8c0e\u8a00<\/h3>\n<p>\u521a\u521a\u7684\u8a00\u8bba\u662f\u5bf9NoSQL\u7684\u653b\u51fb\uff0c\u8fd9\u91cc\u5219\u662f\u81ea\u4fdd\u4e86\u3002<\/p>\n<p>\u53ef\u6269\u5c55\u6027\u662f\u4ec0\u4e48\uff1f\u53ef\u6269\u5c55\u6027\u662f\u4e0d\u662f\u8981\u6269\u5c55\u5230\u4e5d\u91cd\u5929\u4e0a\u592a\u4e0a\u8001\u541b\u7684\u515c\u7387\u5bab\uff1f\u9002\u5408\u7684\u624d\u662f\u6700\u597d\u7684\uff0cNoSQL\u7684\u9002\u7528\u60c5\u51b5\u5e76\u4e0d\u662f\u592a\u591a\u3002<\/p>\n<p>\u4f60\u4e0d\u9700\u8981\u4e3a\u4e86NoSQL\u82b1\u8d39100\u4e07\u7f8e\u5143\u3002\u4e00\u4e2a\u4e2d\u7ea7\u7684Dell\u670d\u52a1\u5668\u5c31\u53ef\u4ee5\u6ee1\u8db3\u8fd9\u4e2a\u4e16\u754c\u4e0a\u7edd\u5927\u90e8\u5206\u7684\u5e94\u7528\u4e86\u3002\u53ea\u8981\u4f60\u7684\u5e94\u7528\u4e0d\u662fTwitter\u548cFacebook.\u4f60\u53ef\u4ee5\u5c06\u8fd9\u4e9b4\u6838\u7684\u670d\u52a1\u5668\u8fde\u8d77\u6765\uff0c\u5f62\u6210\u4e00\u4e2a24\u6838\u7684\uff0c128GB\u5185\u5b58\u7684\u8fd0\u7b97\u80fd\u529b\uff0c\u53ea\u6709$15,000\u3002\u8fd9\u5df2\u7ecf\u5f3a\u5927\u5230\u5e94\u4ed8\u7edd\u5927\u90e8\u5206\u5e94\u7528\u4e86\u3002<\/p>\n<p>\u90a3\u4e9bNoSQL\u7c07\u62e5\u8bfd\u8c24\u7740RDBMS\u4e0d\u5177\u5907\u7684\u6269\u5c55\u6027\uff0c\u5176\u5b9e\u662f\u5f92\u52b3\u7684\u3002RDBMS\u7684\u6269\u5c55\u6027\u5b9e\u7528\u7684\uff0c\u4e0d\u662f\u65e0\u9650\u7684\u3002<\/p>\n<p>\u611f\u89c9\u5546\u4e1a\u673a\u5bc6\u6bd4\u8ba1\u7b97\u80fd\u529b\u503c\u94b1\u3002\u98ce\u4e91\u83ab\u6d4b\u554a\u3002<\/p>\n<h3>\u5f15\u7528\uff1a<\/h3>\n<p><a href=\"http:\/\/www.yafla.com\/dforbes\/Getting_Real_about_NoSQL_and_the_SQL_Isnt_Scalable_Lie\/\">Getting_Real_about_NoSQL_and_the_SQL_Isnt_Scalable_Lie<\/a><br \/>\n<a href=\"http:\/\/groups.google.com\/group\/cloud-computing\/browse_thread\/thread\/9e7ed2c394f47921\/b1a33ed542dd223c\"> Brewer&#8217;s CAP Conjecture is False <\/a><br \/>\n<a href=\"http:\/\/blog.nahurst.com\/visual-guide-to-nosql-systems\">visual-guide-to-nosql-systems<\/a><\/p>\n<div id=\"_mcePaste\" style=\"position: absolute; left: -10000px; top: 929px; width: 1px; height: 1px; overflow: hidden;\">\n<p>\u6709\u4eba\u5c31\u8bf4\uff0c\u4e3a\u4ec0\u4e48\u4e00\u5b9a\u8981\u52a0\u9501\u624d\u80fd\u4fdd\u8bc1\u4e00\u81f4\uff1f\u56e0\u4e3a\u6570\u636e\u603b\u662f\u4ee5\u4e32\u884c\u7684\u8fdb\u5165\u7684\uff0c\u5982\u679c\u662f\u5e8f\u5217\u5316\uff0c\u90a3\u4e48\u7248\u672c1\u548c\u7248\u672c2\u4e4b\u95f4\u5c31\u4e0d\u80fd\u76f4\u63a5\u8f6c\u6362\uff0c\u4ed6\u4eec\u770b\u8d77\u6765\u4e0d\u50cf\u540c\u4e00 \u4e2a\u6570\u636e\u7684\u4e24\u4e2a\u7248\u672c\uff0c\u800c\u50cf\u4e24\u4e2a\u4e0d\u540c\u7684\u6570\u636e\u3002\u6240\u6709\u66f4\u65b0\u64cd\u4f5c\u5fc5\u987b\u6765\u52a0\u9501\u4ec0\u4e48\u7684\uff0c\u624d\u80fd\u4fdd\u8bc1\u4e0d\u51fa\u73b0\u810f\u6570\u636e\u4ec0\u4e48\u7684\u3002\u5982\u679c\u4e0d\u662f\u5e8f\u5217\u5316\u5462\uff1f\u6570\u636e\u7684\u66f4\u65b0\u4e0d\u662f\u65b0\u6570\u636e\u66ff\u6362\u6389\u65e7\u6570 \u636e\uff0c\u800c\u662f\u4e00\u79cd\u64cd\u4f5c\u3002\u6570\u636e\u5e93\u6709\u4e00\u4e2aAgent\u53ef\u4ee5\u4ee5\u4e00\u79cd\u79ef\u6781\u7684\u6001\u5ea6\u6765\u9632\u6b62\u51fa\u73b0\u975e\u4e00\u81f4\u66f4\u65b0\u3002\u8fd9\u79cd\u7cfb\u7edf\u6709\u5982\u4e0b\u7279\u70b9\uff1a<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CAP\u7684\u5d29\u6e83 CAP\u731c\u60f3\u53ef\u662fNoSQL\u7684\u57fa\u77f3\u3002\u4e0a\u56fe\u975e\u5e38\u6709\u610f\u601d\uff0c\u4ed6\u4eceCAP,\u548c\u6570\u636e\u5e93\u79cd\u7c7b\u4e24\u4e2a\u65b9\u5411\u5bf9NoSQL\u8fdb\u884c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u53cdNoSQL\u7684\u547c\u58f0 - \u6211\u81ea\u7136<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/yankay.com\/nosql\u7684\u771f\u76f8\u548c\u8c0e\u8a00\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u53cdNoSQL\u7684\u547c\u58f0 - \u6211\u81ea\u7136\" \/>\n<meta property=\"og:description\" content=\"CAP\u7684\u5d29\u6e83 CAP\u731c\u60f3\u53ef\u662fNoSQL\u7684\u57fa\u77f3\u3002\u4e0a\u56fe\u975e\u5e38\u6709\u610f\u601d\uff0c\u4ed6\u4eceCAP,\u548c\u6570\u636e\u5e93\u79cd\u7c7b\u4e24\u4e2a\u65b9\u5411\u5bf9NoSQL\u8fdb\u884c [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"http:\/\/yankay.com\/nosql\u7684\u771f\u76f8\u548c\u8c0e\u8a00\/\" \/>\n<meta property=\"og:site_name\" content=\"\u6211\u81ea\u7136\" \/>\n<meta property=\"article:published_time\" content=\"2010-03-16T05:47:36+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.yankay.com\/wp-content\/uploads\/2010\/03\/media_httpfarm5static_mevIk_png_scaled1000-300x225.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data1\" content=\"1\u5206\" \/>\n<script 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