{"id":129593,"date":"2024-10-26T22:48:19","date_gmt":"2024-10-26T14:48:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129593\/"},"modified":"2024-10-26T22:48:21","modified_gmt":"2024-10-26T14:48:21","slug":"redis%e7%b5%b1%e8%a8%88%e8%a1%a8%e7%9a%84%e6%95%b8%e7%9b%ae%e4%b9%8b%e7%b6%93%e9%a9%97%ef%bc%88redis%e7%8d%b2%e5%8f%96%e8%a1%a8%e6%95%b8%e9%87%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129593\/","title":{"rendered":"Redis\u7d71\u8a08\u8868\u7684\u6578\u76ee\u4e4b\u7d93\u9a57\uff08redis\u7372\u53d6\u8868\u6578\u91cf\uff09"},"content":{"rendered":"

Redis\u7d71\u8a08\u8868\u7684\u6578\u76ee\u4e4b\u7d93\u9a57\uff08redis\u7372\u53d6\u8868\u6578\u91cf\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u3002\u4e86\u89e3\u5982\u4f55\u7372\u53d6Redis\u4e2d\u7684\u8868\u6578\u91cf\u5c0d\u65bc\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7d71\u8a08\u8868\u7684\u6578\u76ee\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7d93\u9a57\u548c\u6280\u5de7\u3002<\/p>\n

Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u5834\u666f\u3002<\/p>\n

\u7372\u53d6Redis\u8868\u6578\u91cf\u7684\u65b9\u6cd5<\/h2>\n

\u5728Redis\u4e2d\uff0c\u8868\u7684\u6578\u91cf\u901a\u5e38\u6307\u7684\u662f\u9375\u7684\u6578\u91cf\u3002\u8981\u7372\u53d6Redis\u4e2d\u7684\u9375\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

DBSIZE<\/code><\/pre>\n
\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u7576\u524d\u6578\u64da\u5eab\u4e2d\u9375\u7684\u7e3d\u6578\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cRedis\u652f\u6301\u591a\u500b\u6578\u64da\u5eab\uff0c\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\u4f7f\u7528\u7684\u662f\u6578\u64da\u5eab0\u3002\u5982\u679c\u9700\u8981\u67e5\u770b\u5176\u4ed6\u6578\u64da\u5eab\u7684\u9375\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5207\u63db\u6578\u64da\u5eab\uff1a<\/p>\n
SELECT <\/code><\/pre>\n
\u4f8b\u5982\uff0c\u8981\u67e5\u770b\u6578\u64da\u5eab1\u4e2d\u7684\u9375\u6578\u91cf\uff0c\u53ef\u4ee5\u57f7\u884c\uff1a<\/p>\n
SELECT 1\nDBSIZE<\/code><\/pre>\n
\u4f7f\u7528SCAN\u547d\u4ee4\u7372\u53d6\u9375\u7684\u6578\u91cf<\/h2>\n
\u9664\u4e86DBSIZE\u547d\u4ee4\uff0cRedis\u9084\u63d0\u4f9b\u4e86SCAN\u547d\u4ee4\uff0c\u9019\u662f\u4e00\u7a2e\u66f4\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u904d\u6b77\u9375\u3002SCAN\u547d\u4ee4\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u9375\uff0c\u800c\u662f\u5206\u6279\u8fd4\u56de\uff0c\u9019\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\u7279\u5225\u6709\u7528\u3002\u4f7f\u7528SCAN\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
SCAN <\/code><\/pre>\n
\u9019\u88e1\u7684\u662f\u6e38\u6a19\uff0c\u521d\u59cb\u503c\u70ba0\u3002\u6bcf\u6b21\u57f7\u884cSCAN\u547d\u4ee4\u6642\uff0cRedis\u6703\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u6e38\u6a19\uff0c\u76f4\u5230\u6e38\u6a19\u8fd4\u56de\u52300\u70ba\u6b62\uff0c\u8868\u793a\u904d\u6b77\u5b8c\u6210\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
SCAN 0<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u4e00\u6279\u9375\u548c\u4e00\u500b\u65b0\u7684\u6e38\u6a19\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u6e38\u6a19\u7e7c\u7e8c\u4e0b\u4e00\u6b21\u7684SCAN\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u7372\u53d6\u6240\u6709\u9375\u7684\u6578\u91cf\u3002<\/p>\n
\u6027\u80fd\u8003\u91cf<\/h2>\n
\u5728\u7372\u53d6Redis\u8868\u6578\u91cf\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002DBSIZE\u547d\u4ee4\u7684\u57f7\u884c\u6642\u9593\u662fO(1)\uff0c\u5373\u4f7f\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\u4e5f\u80fd\u5feb\u901f\u8fd4\u56de\u7d50\u679c\u3002\u7136\u800c\uff0c\u4f7f\u7528SCAN\u547d\u4ee4\u6642\uff0c\u6027\u80fd\u6703\u53d7\u5230\u9375\u7684\u6578\u91cf\u548c\u6578\u64da\u7d50\u69cb\u7684\u5f71\u97ff\u3002\u5efa\u8b70\u5728\u9ad8\u8ca0\u8f09\u7684\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u76e1\u91cf\u907f\u514d\u983b\u7e41\u4f7f\u7528SCAN\u547d\u4ee4\uff0c\u4ee5\u514d\u5f71\u97ffRedis\u7684\u6027\u80fd\u3002<\/p>\n
\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n
\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u4f86\u7372\u53d6Redis\u4e2d\u7684\u9375\u6578\u91cf\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5b9a\u671f\u6aa2\u67e5\u7528\u6236\u6703\u8a71\u7684\u6578\u91cf\uff0c\u4ee5\u4fbf\u9032\u884c\u8cc7\u6e90\u8abf\u6574\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528DBSIZE\u547d\u4ee4\u5feb\u901f\u7372\u53d6\u7576\u524d\u6d3b\u8e8d\u7528\u6236\u7684\u6578\u91cf\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u4e86\u89e3\u5982\u4f55\u7372\u53d6Redis\u4e2d\u7684\u8868\u6578\u91cf\u5c0d\u65bc\u512a\u5316\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528DBSIZE\u9084\u662fSCAN\u547d\u4ee4\uff0c\u958b\u767c\u8005\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5408\u7406\u7684\u6578\u64da\u7ba1\u7406\u7b56\u7565\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dcVPS<\/code>\u3001\u9999\u6e2fVPS<\/code>\u3001\u670d\u52a1\u5668<\/code>\u3001\u4e91\u670d\u52a1\u5668<\/code>\u6216\u9999\u6e2f\u670d\u52a1\u5668<\/code>\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Redis\u7d71\u8a08\u8868\u7684\u6578\u91cf\u7372\u53d6\u7d93\u9a57\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316Redis\u6578\u64da\u5eab\u6027\u80fd\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-129593","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129593","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=129593"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129593\/revisions"}],"predecessor-version":[{"id":129594,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129593\/revisions\/129594"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}