{"id":453,"date":"2024-09-02T01:05:06","date_gmt":"2024-09-01T17:05:06","guid":{"rendered":"https:\/\/forelink.top\/?p=453"},"modified":"2024-09-02T01:05:06","modified_gmt":"2024-09-01T17:05:06","slug":"redis-%e6%96%b0%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/forelink.top\/index.php\/2024\/09\/02\/redis-%e6%96%b0%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b\/","title":{"rendered":"Redis \u65b0\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"\n

Bitmaps<\/h2>\n\n\n\n

\u7b80\u4ecb\uff1a<\/h3>\n\n\n\n

Redis\u63d0\u4f9b\u4e86Bitmaps\u53ef\u4ee5\u5b9e\u73b0 \u5bf9\u4f4d<\/strong> \u7684\u64cd\u4f5c\uff1a<\/p>\n\n\n\n

\u2460 Bitmaps\u672c\u8eab\u4e0d\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5b9e\u9645\u4e0a\u53ca\u65f6\u5b57\u7b26\u4e32\uff08key-value\uff09\u3002<\/p>\n\n\n\n

\u2461 Bitmaps\u7c7b\u4f3c\u4e00\u4e2a\u4ee5\u4f4d\u4e3a\u5355\u4f4d\u7684\u6570\u7ec4\uff0c\u6570\u7ec4\u7684\u6bcf\u4e2a\u5355\u5143\u53ea\u80fd\u5b58\u50a80\u548c1\uff0c\u6570\u7ec4\u7684\u4e0b\u6807\u5728Bitmaps\u4e2d\u53eb\u505a\u504f\u79fb\u91cf\u3002<\/p>\n\n\n\n

\u57fa\u7840\u547d\u4ee4\uff1a<\/h3>\n\n\n\n
setbit [key] [offset] [value] \u8bbe\u7f6ebitmaps\u4e2d\u67d0\u4e2a\u504f\u79fb\u91cf\u7684\u503c\uff080\u62161\uff09\n                            \u504f\u79fb\u91cf\u4ece0\u5f00\u59cb\u3002\ngetbit [key] [offset] \u53d6\u51fabitmaps\u4e2d\u67d0\u4e2a\u504f\u79fb\u91cf\u7684\u503c\nbitcount [key] [\\st] [\\ed] \u83b7\u53d6value\u8bbe\u7f6e\u4e3a1\u7684\u6570\u91cf\uff08st\u3001ed\u53ef\u9009\uff09\nbitop and [result key] [key1] [key2] ... bitop\u662f\u4e00\u4e2a\u7b26\u5408\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5c06\u591a\u4e2abitmaps\n                        \u7684and\uff08\u4ea4\u96c6\uff09\u3001or\uff08\u5e76\u96c6\uff09\u3001not\uff08\u975e\uff09\u3001xor\uff08\u5f02\u6216\uff09\u64cd\u4f5c\n                        \u7ed3\u679c\u4fdd\u5b58\u5728result key\u4e2d\n<\/code><\/pre>\n\n\n\n
\u5728\u7b2c\u4e00\u6b21\u521d\u59cb\u5316Bitmaps\u65f6\uff0c\u5982\u679c\u504f\u79fb\u91cf\u975e\u5e38\u5927\uff0c\u90a3\u4e48\u6574\u4e2a\u521d\u59cb\u5316\u8fc7\u7a0b\u6267\u884c\u4f1a\u975e\u5e38\u6162\uff0c\u53ef\u80fd\u4f1a\u9020\u6210Redis\u7684\u963b\u585e\u3002<\/p>\n\n\n\n
redis\u7684setbit\u8bbe\u7f6e\u6216\u6e05\u9664\u7684\u662fbit\u4f4d\u7f6e\uff0cbitcount\u8bbe\u7f6e\u7684\u662fbyte\u8bbe\u7f6e<\/p>\n\n\n\n
set\u548cbitmaps\u5bf9\u6bd4<\/h3>\n\n\n\n
bitmaps\u80fd\u6781\u5927\u7684\u8282\u7ea6\u7a7a\u95f4\u3002\n<\/code><\/pre>\n\n\n\n
HyperLogLog<\/h2>\n\n\n\n
\u7b80\u4ecb\uff1a<\/h3>\n\n\n\n
\u200b    \u5728\u5de5\u4f5c\u4e2d\uff0c\u7ecf\u5e38\u9047\u5230\u4e0e\u7edf\u8ba1\u76f8\u5173\u7684\u529f\u80fd\u5b9e\u73b0\uff0c\u6bd4\u5982\u7edf\u8ba1\u7f51\u7ad9PV(ageView)\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684incr\u3001incrby\u8f7b\u677e\u5b9e\u73b0\u3002<\/p>\n\n\n\n
\u200b    \u4f46\u50cfUV\uff08UniqueVisitor\uff0c\u72ec\u7acb\u8bbf\u5ba2\uff09\u3001\u72ec\u7acbip\u6570\u3001\u641c\u7d22\u8bb0\u5f55\u6570\u7b49\u9700\u8981\u53bb\u91cd\u548c\u8ba1\u6570\u7684\u95ee\u9898\uff0c\u6216\u8005\u8bf4\u662f\u6c42\u96c6\u5408\u4e2d\u4e0d\u91cd\u590d\u5143\u7d20\u4e2a\u6570\u7684\u95ee\u9898\uff0c\u5c31\u662f \u57fa\u6570\u95ee\u9898<\/strong> \u3002<\/p>\n\n\n\n
\u200b     HyperLogLog \u662f\u4e00\u79cd\u7528\u6765\u505a\u57fa\u6570\u7edf\u8ba1\u7684\u7b97\u6cd5\uff0cHyperLogLog\u7684\u663e\u8457\u7279\u70b9\u662f\uff0c\u5728\u8f93\u5165\u7684\u5143\u7d20\u6570\u91cf\u6216\u8005\u4f53\u79ef\u975e\u5e38\u5e9e\u5927\u65f6\uff0c\u8ba1\u7b97\u57fa\u6570\u6240\u9700\u7684\u7a7a\u95f4\u603b\u662f\u56fa\u5b9a\u3002\u5728Redis\u7684\u5177\u4f53\u5b9e\u73b0\u4e2d\uff0c\u6bcf\u4e2aHyperLogLog\u952e\u53ea\u9700\u8981\u82b1\u8d3912kb\u5185\u5b58\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u63a5\u8fd12^64\u4e2a\u4e0d\u540c\u5143\u7d20\u7684\u57fa\u6570\u3002<\/p>\n\n\n\n
\u200b    \u4f46\u662f\uff0cHyperLogLog\u53ea\u4f1a\u6839\u636e\u8f93\u5165\u5143\u7d20\u6765\u8ba1\u7b97\u57fa\u6570\uff0c\u800c\u4e0d\u4f1a\u5b58\u50a8\u8f93\u5165\u5143\u7d20\u672c\u8eab\uff0c\u6240\u4ee5HyperLogLog\u4e0d\u80fd\u50cf\u96c6\u5408\u90a3\u6837\uff0c\u8fd4\u56de\u8f93\u5165\u7684\u5404\u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n
\u57fa\u7840\u547d\u4ee4\uff1a<\/h3>\n\n\n\n
pfadd [key] [value1] [value2] ... \u5f80\u5c06\u503c\u52a0\u5165\u5230key\u6307\u5b9a\u7684HyperLogLog\u6570\u636e\u7ed3\u6784\u4e2d\n                            \u5982\u679c\u5728\u6dfb\u52a0\u540e\uff0cHLL\u4f30\u8ba1\u7684\u8fd1\u4f3c\u57fa\u6570\u53d1\u751f\u53d8\u5316\uff0c\n                            \u5219\u8fd4\u56de1\uff0c\u5426\u5219\u8fd4\u56de0\u3002\npfcount [key1] [key2] ... \u8ba1\u7b97\u6307\u5b9aHLL\u7684\u8fd1\u4f3c\u57fa\u6570\uff0c\u53ef\u4ee5\u8ba1\u7b97\u591a\u4e2aHLL               pfmerge [result key] [key1] [key2] ... \u5c06\u4e00\u4e2a\u6216\u8005\u591a\u4e2aHLL\u5408\u5e76\u540e\u7684\u7ed3\u679c\u5b58\u5728\n                                    result key\u5f53\u4e2d\n<\/code><\/pre>\n\n\n\n
Geospatial<\/h2>\n\n\n\n
\u7b80\u4ecb\uff1a<\/h3>\n\n\n\n
GEO\u63d0\u4f9b\u4e86\u7ecf\u7eac\u5ea6\u8bbe\u7f6e\uff0c\u67e5\u8be2\uff0c\u8303\u56f4\u67e5\u8be2\uff0c\u8ddd\u79bb\u67e5\u8be2\uff0c\u7ecf\u7eac\u5ea6Hash\u7b49\u4fe1\u606f<\/p>\n\n\n\n
\u6709\u6548\u7684\u7ecf\u5ea6 \u4ece -180\u5ea6 \u5230 180\u5ea6\u3002\n\u6709\u6548\u7684\u7eac\u5ea6 \u4ece -85.05112827\u5ea6 \u5230 85.05112827\u5ea6 <\/p>\n\n\n\n
\u5f53\u5750\u6807\u4f4d\u7f6e\u8d85\u51fa\u8303\u56f4\u65f6\uff0c\u8be5\u547d\u4ee4\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\n\u5df2\u6dfb\u52a0\u7684\u6570\u636e\uff0c\u662f\u65e0\u6cd5\u518d\u6b21\u5f80\u91cc\u6dfb\u52a0\u7684\u3002<\/p>\n\n\n\n
\u57fa\u7840\u547d\u4ee4\uff1a<\/h3>\n\n\n\n
geoadd [key] [longitute] [latitude] [value] \u5728key\u4e2d\u6dfb\u52a0\u5305\u542b\u7ecf\u7eac\u5ea6\u4fe1\u606f\u7684value\n                                        \ngeopos [key] [value] \u83b7\u53d6value\u7684\u7ecf\u7eac\u5ea6\n\ngeodist [key] [value1] [value2] \u83b7\u53d6\u4e24\u4e2a\u4f4d\u7f6e\u4e4b\u95f4\u7684\u76f4\u7ebf\u8ddd\u79bb\n\ngeoradius [key] [longitude] [latitude] [radius] [m\/km\/ft\/mi]\n                            \u4ee5\u7ed9\u5b9a\u7684\u7ecf\u7eac\u5ea6\u4e3a\u4e2d\u5fc3\uff0c\u627e\u51fa\u67d0\u4e00\u534a\u5f84\u5185\u7684\u5143\u7d20\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Bitmaps \u7b80\u4ecb\uff1a Redis\u63d0\u4f9b\u4e86Bitmaps\u53ef\u4ee5\u5b9e\u73b0 \u5bf9\u4f4d \u7684\u64cd\u4f5c\uff1a \u2460 Bitmaps\u672c\u8eab\u4e0d\u662f\u4e00\u79cd […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[40,39],"tags":[],"class_list":["post-453","post","type-post","status-publish","format-standard","hentry","category-redis","category-39"],"_links":{"self":[{"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/posts\/453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/comments?post=453"}],"version-history":[{"count":1,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/posts\/453\/revisions"}],"predecessor-version":[{"id":454,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/posts\/453\/revisions\/454"}],"wp:attachment":[{"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/media?parent=453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/categories?post=453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forelink.top\/index.php\/wp-json\/wp\/v2\/tags?post=453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}