{"id":1342,"date":"2020-02-28T17:34:12","date_gmt":"2020-02-28T09:34:12","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=1342"},"modified":"2023-12-04T15:45:39","modified_gmt":"2023-12-04T07:45:39","slug":"cap%e7%90%86%e8%ae%ba","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=1342","title":{"rendered":"CAP\u539f\u5219"},"content":{"rendered":"

\u5206\u5e03\u5f0f\u7cfb\u7edf\u8d77\u70b9<\/h3>\n

\u5206\u5e03\u5f0f\u7cfb\u7edf\uff08distributed system\uff09\u6b63\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\uff0c\u5927\u578b\u7f51\u7ad9\u51e0\u4e4e\u90fd\u662f\u5206\u5e03\u5f0f\u7684\u3002<\/p>\n

\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u6700\u5927\u96be\u70b9\uff0c\u5c31\u662f\u5404\u4e2a\u8282\u70b9\u7684\u72b6\u6001\u5982\u4f55\u540c\u6b65\u3002CAP \u5b9a\u7406\u662f\u8fd9\u65b9\u9762\u7684\u57fa\u672c\u5b9a\u7406\uff0c\u4e5f\u662f\u7406\u89e3\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u8d77\u70b9\u3002<\/p>\n

1. CAP\u5168\u62fc<\/h3>\n

Consistency \u4e00\u81f4\u6027<\/p>\n

Availability \u53ef\u7528\u6027<\/p>\n

Partition \u5206\u533a<\/p>\n

\"\"<\/p>\n

\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0cP\u662f\u5fc5\u5728\u7684\u3002\u5269\u4e0b\u5c31\u662fC\u548cA\u3002\u7ec4\u5408\u6709CP\u3001AP\u3002<\/p>\n

2. \u5177\u4f53\u89e3\u91ca<\/h3>\n

CAP\u7406\u8bba\u63d0\u51fa\u5c31\u662f\u9488\u5bf9\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u73af\u5883\u7684\uff0c\u6240\u4ee5\uff0cP\u8fd9\u4e2a\u5c5e\u6027\u662f\u5fc5\u987b\u5177\u5907\u7684\u3002P\u5c31\u662f\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\uff0c\u7531\u4e8e\u7f51\u7edc\u7684\u95ee\u9898\u53ef\u80fd\u5bfc\u81f4\u67d0\u4e2a\u8282\u70b9\u548c\u5176\u5b83\u8282\u70b9\u5931\u53bb\u8054\u7cfb\uff0c\u8fd9\u65f6\u5019\u5c31\u5f62\u6210\u4e86P(partition)\uff0c\u4e5f\u5c31\u662f\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\uff0c\u5c06\u7cfb\u7edf\u7684\u6210\u5458\u9694\u79bb\u6210\u4e862\u4e2a\u533a\u57df\uff0c\u4e92\u76f8\u65e0\u6cd5\u77e5\u9053\u5bf9\u65b9\u7684\u72b6\u6001\uff0c\u8fd9\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u662f\u975e\u5e38\u5e38\u89c1\u7684\u3002<\/p>\n

\u56e0\u4e3aP\u662f\u5fc5\u987b\u7684\uff0c\u90a3\u4e48\u6211\u4eec\u9700\u8981\u9009\u62e9\u7684\u5c31\u662fA\u548cC\u3002\u5927\u5bb6\u77e5\u9053\uff0c\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u7cfb\u7edf\u53ef\u7528\u6027\uff0c\u901a\u5e38\u90fd\u91c7\u53d6\u4e86\u590d\u5236\u7684\u65b9\u5f0f\uff0c\u907f\u514d\u4e00\u4e2a\u8282\u70b9\u635f\u574f\uff0c\u5bfc\u81f4\u7cfb\u7edf\u4e0d\u53ef\u7528\u3002\u90a3\u4e48\u5c31\u51fa\u73b0\u4e86\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7684\u6570\u636e\u51fa\u73b0\u4e86\u5f88\u591a\u4e2a\u526f\u672c\u7684\u60c5\u51b5\uff0c\u800c\u6570\u636e\u4ece\u4e00\u4e2a\u8282\u70b9\u590d\u5236\u5230\u53e6\u5916\u7684\u8282\u70b9\u65f6\u9700\u8981\u65f6\u95f4\u548c\u8981\u6c42\u7f51\u7edc\u7545\u901a\u7684\uff0c\u6240\u4ee5\uff0c\u5f53P\u53d1\u751f\u65f6\uff0c\u4e5f\u5c31\u662f\u65e0\u6cd5\u5411\u67d0\u4e2a\u8282\u70b9\u590d\u5236\u6570\u636e\u65f6\uff0c\u8fd9\u65f6\u5019\u4f60\u6709\u4e24\u4e2a\u9009\u62e9\uff1a<\/p>\n

\u9009\u62e9\u53ef\u7528\u6027 A(Availability)\uff0c\u6b64\u65f6\uff0c\u90a3\u4e2a\u5931\u53bb\u8054\u7cfb\u7684\u8282\u70b9\u4f9d\u7136\u53ef\u4ee5\u5411\u7cfb\u7edf\u63d0\u4f9b\u670d\u52a1\uff0c\u4e0d\u8fc7\u5b83\u7684\u6570\u636e\u5c31\u4e0d\u80fd\u4fdd\u8bc1\u662f\u540c\u6b65\u7684\u4e86\uff08\u5931\u53bb\u4e86C\u5c5e\u6027\uff09\u3002
\n\u9009\u62e9\u4e00\u81f4\u6027C(Consistency)\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u5e93\u7684\u4e00\u81f4\u6027\uff0c\u6211\u4eec\u5fc5\u987b\u7b49\u5f85\u5931\u53bb\u8054\u7cfb\u7684\u8282\u70b9\u6062\u590d\u8fc7\u6765\uff0c\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u90a3\u4e2a\u8282\u70b9\u662f\u4e0d\u5141\u8bb8\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u7684\uff0c\u8fd9\u65f6\u5019\u7cfb\u7edf\u5904\u4e8e\u4e0d\u53ef\u7528\u72b6\u6001(\u5931\u53bb\u4e86A\u5c5e\u6027)\u3002<\/p>\n

\u6700\u5e38\u89c1\u7684\u4f8b\u5b50\u662f\u8bfb\u5199\u5206\u79bb\uff0c\u67d0\u4e2a\u8282\u70b9\u8d1f\u8d23\u5199\u5165\u6570\u636e\uff0c\u7136\u540e\u5c06\u6570\u636e\u540c\u6b65\u5230\u5176\u5b83\u8282\u70b9\uff0c\u5176\u5b83\u8282\u70b9\u63d0\u4f9b\u8bfb\u53d6\u7684\u670d\u52a1\uff0c\u5f53\u4e24\u4e2a\u8282\u70b9\u51fa\u73b0\u901a\u4fe1\u95ee\u9898\u65f6\uff0c\u4f60\u5c31\u9762\u4e34\u7740\u9009\u62e9A\uff08\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1\uff0c\u4f46\u662f\u6570\u636e\u4e0d\u4fdd\u8bc1\u51c6\u786e\uff09\uff0cC\uff08\u7528\u6237\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u4e00\u76f4\u7b49\u5230\u6570\u636e\u540c\u6b65\u5b8c\u6210\uff09\u3002<\/p>\n

3.\u5e38\u89c1\u7528\u4f8b<\/h3>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5206\u5e03\u5f0f\u7cfb\u7edf\u8d77\u70b9 \u5206\u5e03\u5f0f\u7cfb\u7edf\uff08distributed system\uff09\u6b63\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\uff0c\u5927\u578b\u7f51\u7ad9\u51e0\u4e4e\u90fd\u662f\u5206\u5e03\u5f0f\u7684\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15],"tags":[403],"class_list":["post-1342","post","type-post","status-publish","format-standard","hentry","category-15","tag-403"],"_links":{"self":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1342"}],"version-history":[{"count":11,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1342\/revisions"}],"predecessor-version":[{"id":3266,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/1342\/revisions\/3266"}],"wp:attachment":[{"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wyxxt.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}