{"id":27483,"date":"2024-11-24T19:30:48","date_gmt":"2024-11-24T11:30:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=27483"},"modified":"2024-11-24T19:30:48","modified_gmt":"2024-11-24T11:30:48","slug":"mongodb%e4%b8%ad%e7%9a%84readconcern-%e4%b8%8e-readpreference%e7%9a%84%e5%8c%ba%e5%88%ab%e4%b8%8e%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27483\/","title":{"rendered":"Mongodb\u4e2d\u7684readConcern \u4e0e readPreference\u7684\u533a\u522b\u4e0e\u539f\u7406"},"content":{"rendered":"<p>\u5728\u8fd9\u4e00\u7bc7\u6587\u7ae0\u63d0\u5230\uff0creadPreference\u67095\u79cd\u7b56\u7565\uff1a<\/p>\n<pre><code>primary<\/code> \u53ea\u4ece primary \u8282\u70b9\u8bfb\u6570\u636e\uff0c\u8fd9\u4e2a\u662f\u9ed8\u8ba4\u8bbe\u7f6e <code>primaryPreferred<\/code> \u4f18\u5148\u4ece primary \u8bfb\u53d6\uff0cprimary \u4e0d\u53ef\u670d\u52a1\uff0c\r\n\u4ece secondary \u8bfb <code>secondary<\/code> \u53ea\u4ece scondary \u8282\u70b9\u8bfb\u6570\u636e <code>secondaryPreferred<\/code> \u4f18\u5148\u4ece secondary \u8bfb\u53d6\uff0c\u6ca1\u6709 secondary \u6210\u5458\u65f6\uff0c\r\n\u4ece primary \u8bfb\u53d6 <code>nearest<\/code> \u6839\u636e\u7f51\u7edc\u8ddd\u79bb\u5c31\u8fd1\u8bfb\u53d6<\/pre>\n<p>\u4f46\u5728\u5b98\u65b9\u6587\u6863\u4e2d\uff1ahttp:\/\/docs.mongoing.com\/manual-zh\/core\/read-preference.html\uff0c\u6307\u51fa\u4e00\u822c\u8bbe\u7f6e\u4e0d\u8981\u4f7f\u7528<\/p>\n<p>secondary\u548csecondaryPreferred\uff0c\u56e0\u4e3a\u6b64\u65f6\u8bfb\u5230\u7684\u6570\u636e\u53ef\u80fd\u5b58\u5728\u4e0d\u4e00\u81f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u8fd9\u4e00\u7bc7\u6587\u7ae0\u63d0\u5230\uff0creadPreference\u67095\u79cd\u7b56\u7565\uff1a primary \u53ea\u4ece primary \u8282\u70b9\u8bfb\u6570\u636e\uff0c\u8fd9\u4e2a\u662f\u9ed8\u8ba4\u8bbe\u7f6e primaryPreferred \u4f18\u5148\u4ece primary \u8bfb\u53d6\uff0cprimary \u4e0d\u53ef\u670d\u52a1\uff0c \u4ece secondary \u8bfb secondary \u53ea\u4ece scondary \u8282\u70b9\u8bfb\u6570\u636e secondaryPreferred \u4f18\u5148\u4ece secondary \u8bfb\u53d6\uff0c\u6ca1\u6709 secondary \u6210\u5458\u65f6\uff0c \u4ece primary \u8bfb\u53d6 nearest \u6839\u636e\u7f51\u7edc\u8ddd\u79bb\u5c31\u8fd1\u8bfb\u53d6 \u4f46\u5728\u5b98\u65b9\u6587\u6863\u4e2d\uff1ahttp:\/\/docs.mongoing.com\/manual-zh\/core\/read-preference.html\uff0c\u6307\u51fa\u4e00\u822c\u8bbe\u7f6e\u4e0d\u8981\u4f7f\u7528 secondary\u548csecondaryPreferred\uff0c\u56e0\u4e3a\u6b64\u65f6\u8bfb\u5230\u7684\u6570\u636e\u53ef\u80fd\u5b58\u5728\u4e0d\u4e00\u81f4\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-27483","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=27483"}],"version-history":[{"count":1,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27483\/revisions"}],"predecessor-version":[{"id":27491,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27483\/revisions\/27491"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}