{"id":56040,"date":"2018-09-06T19:31:45","date_gmt":"2018-09-06T11:31:45","guid":{"rendered":"http:\/\/www.fagao.me\/?p=56040"},"modified":"2018-09-06T19:31:45","modified_gmt":"2018-09-06T11:31:45","slug":"esearch58%e9%9b%86%e5%9b%a2%e5%9f%ba%e4%ba%8ec%e8%af%ad%e8%a8%80%e8%87%aa%e4%b8%bb%e7%a0%94%e5%8f%91%e7%9a%84%e6%90%9c%e7%b4%a2%e8%90%a5%e9%94%80%e5%86%85%e6%a0%b8","status":"publish","type":"post","link":"https:\/\/www.fagao.me\/p\/56040.htm","title":{"rendered":"ESearch58\u96c6\u56e2\u57fa\u4e8eC++\u8bed\u8a00\u81ea\u4e3b\u7814\u53d1\u7684\u641c\u7d22\u8425\u9500\u5185\u6838"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/F003.jpg\" alt=\"\"><\/p>\n<section><span class=\"a-image\" id=\"article-img-0\"><\/span><\/section>\n<section>\u4f5c\u8005\uff5c \u6768\u9038 <\/section>\n<section>\u51fa\u5904\uff5c58\u67b6\u6784\u5e08 \u516c\u4f17\u53f7 <\/section>\n<section>58 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\u6539\u5199\u7b49\u591a\u79cd\u6027\u80fd\u4f18\u5316\u63aa\u65bd\uff0c\u53ef\u8fbe\u5230\u5355\u673a\u5343\u4e07\u7ea7\u6587\u6863\u30018000 QPS\u3001\u6beb\u79d2\u7ea7\u5e73\u5747\u5ef6\u8fdf\u3002<\/p>\n<\/li>\n<li>\n<p>\u529f\u80fd\u4e30\u5bcc\uff1a\u652f\u6301\u590d\u5408\u6761\u4ef6\u67e5\u8be2\u3001\u7a7a\u95f4\u67e5\u8be2\u3001Facet \u67e5\u8be2\u3001\u5206\u7ec4\u67e5\u8be2\u3001\u7ed3\u679c\u53bb\u91cd\u7b49\u529f\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e1a\u52a1\u53ef\u5b9a\u5236\uff1a\u652f\u6301 SKU 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\u641c\u7d22\u7cfb\u7edf\u7684\u6574\u4f53\u67b6\u6784\uff0c\u5206\u4e3a\u5e94\u7528\u5c42\u548c\u5185\u6838\u5c42\u4e24\u5927\u90e8\u5206\uff0c\u5e94\u7528\u5c42\u5305\u62ec Proxy \u548c Builder \u4e24\u4e2a\u6a21\u5757\uff0c\u8d1f\u8d23\u4e0e\u4e1a\u52a1\u76f8\u5173\u7684\u903b\u8f91\uff0c\u5185\u6838\u5c42\u5c31\u662f\u672c\u6587\u91cd\u70b9\u4ecb\u7ecd\u7684 ESearch\uff0c\u5305\u62ec Merger \u548c Searcher \u4e24\u4e2a\u6a21\u5757\uff0c\u8d1f\u8d23\u901a\u7528\u7684\u68c0\u7d22\u529f\u80fd\u3002\u5404\u4e2a\u6a21\u5757\u7684\u5177\u4f53\u529f\u80fd\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p>Proxy\uff1a\u67e5\u8be2\u4ee3\u7406\uff0c\u63a5\u6536\u524d\u7aef\u67e5\u8be2\u8bf7\u6c42\uff0c\u8fdb\u884c\u610f\u56fe\u8bc6\u522b\u548c\u67e5\u8be2\u6539\u5199\u7b49\u5de5\u4f5c\uff0c\u7136\u540e\u53d1\u9001\u8bf7\u6c42\u5230 Merger\uff0c\u83b7\u53d6\u68c0\u7d22\u7ed3\u679c\u3002<\/p>\n<\/li>\n<li>\n<p>Merger\uff1a\u57fa\u4e8e\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u5c06\u8bf7\u6c42\u5206\u53d1\u5230\u591a\u4e2a Searcher\uff0c\u7136\u540e\u5408\u5e76\u7ed3\u679c\uff0c\u5e76\u8fdb\u884c\u4e00\u4e9b\u6392\u5e8f\u8c03\u6574\u3002<\/p>\n<\/li>\n<li>\n<p>Searcher\uff1a\u5305\u542b\u7d22\u5f15\u6570\u636e\u548c\u6392\u5e8f\u6a21\u578b\uff0c\u8d1f\u8d23\u5b9e\u65f6\u5efa\u7d22\u5f15\u5e76\u6267\u884c\u53ec\u56de\u3001\u6253\u5206\u3001\u6392\u5e8f\u7b49\u68c0\u7d22\u6d41\u7a0b\u3002<\/p>\n<\/li>\n<li>\n<p>Builder\uff1a\u63a5\u6536\u5916\u90e8\u8bf7\u6c42\u8fdb\u884c\u8fdb\u884c\u6587\u6863\u6784\u5efa\uff0c\u5e76\u5c06\u6587\u6863\u53d1\u7ed9 Searcher\u3002<\/p>\n<\/li>\n<\/ul>\n<section>\u4e8c\u3001\u5b9e\u65f6\u7d22\u5f15<\/section>\n<p>\u5b9e\u65f6\u7d22\u5f15\u7684\u8bbe\u8ba1\u4e3b\u8981\u9700\u8981\u8003\u8651\u4e24\u4e2a\u9700\u6c42\uff1a<\/p>\n<ul>\n<li>\n<p>\u6587\u6863\u66f4\u65b0\u80fd\u5728\u79d2\u7ea7\u65f6\u95f4\u5185\u751f\u6548\uff1a\u7528\u6237\u4fe1\u606f\u53d1\u5e03\u6216\u8005\u4fee\u6539\u66f4\u65b0\u4e4b\u540e\uff0c\u9700\u8981\u80fd\u5c3d\u5feb\u88ab\u68c0\u7d22\u5230\u3002<\/p>\n<\/li>\n<li>\n<p>\u6587\u6863\u66f4\u65b0\u65f6\u4e0d\u5f71\u54cd\u67e5\u8be2\u6548\u7387\uff1a\u5728\u5927\u6570\u636e\u91cf\u5927\u66f4\u65b0\u91cf\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0d\u80fd\u5f71\u54cd\u67e5\u8be2\u5ef6\u65f6\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4ece\u67e5\u8be2\u6548\u7387\u51fa\u53d1\uff0c\u4e1a\u754c\u901a\u5e38\u91c7\u7528\u8bfb\u5199\u5206\u79bb\u7684\u8bbe\u8ba1\uff0c\u5373\u7d22\u5f15\u4e0d\u63d0\u4f9b\u66f4\u65b0\u529f\u80fd\uff0c\u907f\u514d\u66f4\u65b0\u64cd\u4f5c\u963b\u585e\u67e5\u8be2\u7ebf\u7a0b\u3002\u63a5\u6536\u5230\u65b0\u6587\u6863\u4e4b\u540e\uff0c\u5148\u4e0e\u539f\u7d22\u5f15\u6570\u636e\u5408\u5e76\u4e3a\u65b0\u7d22\u5f15\uff0c\u7136\u540e\u66ff\u6362\u6389\u65e7\u7d22\u5f15\uff0c\u4ece\u800c\u4f7f\u65b0\u6587\u6863\u751f\u6548\u3002\u4f46\u5728\u6587\u6863\u66f4\u65b0\u91cf\u6bd4\u8f83\u5927\uff0c\u5e76\u4e14\u7d22\u5f15\u91cf\u968f\u65f6\u95f4\u9010\u6e10\u589e\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u5408\u5e76\u65f6\u95f4\u4f1a\u53d8\u5f97\u5f88\u957f\uff0c\u5bfc\u81f4\u65b0\u6587\u6863\u957f\u65f6\u95f4\u65e0\u6cd5\u751f\u6548\u3002\u6b64\u5916\u8fd8\u6709\u4e00\u4e9b\u641c\u7d22\u5f15\u64ce\u91c7\u7528\u4e86\u65e0\u9501\u6570\u636e\u7ed3\u6784\uff0c\u652f\u6301\u7d22\u5f15\u7684\u9ad8\u5e76\u53d1\u8bfb\u5199\uff0c\u4f46\u5b9e\u73b0\u76f8\u5bf9\u590d\u6742\u3002<\/p>\n<p>ESearch \u4e5f\u91c7\u7528\u4e86\u8bfb\u5199\u5206\u79bb\u8bbe\u8ba1\uff0c\u4e3a\u4e86\u514b\u670d\u5408\u5e76\u65f6\u95f4\u8fc7\u957f\u7684\u95ee\u9898\uff0c\u5bf9\u5408\u5e76\u673a\u5236\u505a\u4e86\u6539\u8fdb\u8bbe\u8ba1\uff1a\u5bf9\u6bcf\u4e2a\u68c0\u7d22\u8282\u70b9\u7684\u7d22\u5f15\u6570\u636e\u6309\u751f\u547d\u5468\u671f\u5206\u4e3a\u591a\u6bb5\uff0c\u6bcf\u6bb5\u662f\u4e00\u4efd\u5b8c\u6574\u7684\u5c0f\u7d22\u5f15\uff0c\u5305\u542b\u72ec\u7acb\u7684\u5012\u6392\u548c\u6b63\u6392\u7d22\u5f15\u7b49\u6570\u636e\u3002\u65b0\u589e\u7684\u6587\u6863\u6570\u636e\u53ea\u548c\u6700\u5c0f\u7684\u7d22\u5f15\u6bb5\u5408\u5e76\uff0c\u786e\u4fdd\u4e86\u7d22\u5f15\u7684\u66f4\u65b0\u901f\u5ea6\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u7684\u5e94\u7528\u5c42\u9762\uff0c\u6839\u636e\u81ea\u8eab\u6570\u636e\u91cf\u548c\u4e1a\u52a1\u7279\u70b9\uff0c\u6211\u4eec\u91c7\u53d6\u4e86\u4ee5\u4e0b\u65b9\u6848\uff1a\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7d22\u5f15\u6309\u751f\u547d\u5468\u671f\u5206\u4e3a 3 \u79d2\u300115 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alt=\"\"><\/p>\n<p>\u5728\u8fd9\u79cd\u5206\u6bb5\u8bbe\u8ba1\u4e0b\uff0c\u67e5\u8be2\u5904\u7406\u5668\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u67e5\u8be2\u5206\u914d\u591a\u4e2a\u7ebf\u7a0b\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u68c0\u7d22\u4e00\u4e2a\u6bb5\uff0c\u6700\u7ec8\u5c06\u7ed3\u679c\u5408\u5e76\u3002\u56e0\u6b64\u5206\u6bb5\u8bbe\u8ba1\u4e5f\u4fbf\u4e8e\u5229\u7528\u5e76\u53d1\u80fd\u529b\u964d\u4f4e\u67e5\u8be2\u5ef6\u65f6\u3002<\/p>\n<p>\u5982\u679c\u6587\u6863\u7684\u66f4\u65b0\u548c\u67e5\u8be2\u7684\u53ec\u56de\u6761\u4ef6\u6216\u6392\u5e8f\u5747\u9075\u5faa\u65f6\u95f4\u5e8f\uff08\u4f8b\u5982\u65e5\u5fd7\u7d22\u5f15\uff09\uff0c\u90a3\u4e48\u53ef\u4ee5\u53ea\u68c0\u7d22\u4e0e\u67e5\u8be2\u4e2d\u7684\u65f6\u95f4\u6bb5\u76f8\u5173\u7684\u7d22\u5f15\u6bb5\uff0c\u63d0\u5347\u68c0\u7d22\u6548\u7387\uff0c\u56e0\u6b64\u8fd9\u79cd\u8bbe\u8ba1\u5f88\u9002\u5408\u4ee5\u65f6\u95f4\u5e8f\u4e3a\u4e3b\u8981\u6392\u5e8f\u9700\u6c42\u7684\u641c\u7d22\u7cfb\u7edf\u3002<\/p>\n<section>\u4e09\u3001\u7d22\u5f15\u7ed3\u6784<\/section>\n<p>\u4e0a\u4e00\u8282\u4ecb\u7ecd\u4e86\u5b9e\u65f6\u7d22\u5f15\u6574\u4f53\u7684\u8bbe\u8ba1\uff0c\u672c\u8282\u4ecb\u7ecd\u7d22\u5f15\u6bb5\u5185\u7684\u5177\u4f53\u7ed3\u6784\u3002<\/p>\n<p>\u5728 ESearch \u4e2d\uff0c\u6bcf\u4e2a\u7d22\u5f15\u6bb5\u5305\u542b\u56db\u79cd\u7d22\u5f15\u7ed3\u6784\uff1a\u4e3b\u952e\u7d22\u5f15\u3001\u5220\u9664\u8868\u3001\u5012\u6392\u7d22\u5f15\u548c\u6b63\u6392\u7d22\u5f15\u3002<\/p>\n<p><strong>3.1\u3001\u4e3b\u952e\u7d22\u5f15<\/strong><\/p>\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u9ad8\u6548\u8ba1\u7b97\uff0c\u7d22\u5f15\u5185\u90e8\u4e3a\u6574\u4e2a\u6587\u6863\u96c6\u5206\u914d\u4e86\u4ece 0 \u5f00\u59cb\u9012\u589e\u7684 doc id\uff0c\u5012\u6392\u548c\u6b63\u6392\u7d22\u5f15\u5747\u57fa\u4e8e doc id \u6765\u7ec4\u7ec7\uff0c\u800c\u4e0d\u4f7f\u7528\u6587\u6863\u7684\u539f\u59cb\u4e3b\u952e\u3002\u4e3a\u4e86\u80fd\u4ece\u6587\u6863\u7684\u539f\u59cb\u4e3b\u952e\u67e5\u627e\u5230\u5bf9\u5e94\u7684\u7d22\u5f15\u6570\u636e\uff0c\u5fc5\u987b\u5148\u5c06\u4e3b\u952e\u6620\u5c04\u4e3a doc id\uff0c\u4e3b\u952e\u7d22\u5f15\u5c31\u662f\u4e3a\u6b64\u800c\u5b58\u5728\u7684\uff0c\u5b83\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u4ece\u4e3b\u952e\u6620\u5c04\u5230 doc id \u7684\u54c8\u5e0c\u8868\u3002<\/p>\n<p><strong>3.2\u3001\u5220\u9664\u8868<\/strong><\/p>\n<p>\u5012\u6392\u7d22\u5f15\u662f\u4e3a\u67e5\u8be2\u4f18\u5316\u7684\uff0c\u4e0d\u5229\u4e8e\u539f\u5730\u66f4\u65b0\u548c\u5220\u9664\uff0c\u56e0\u6b64\u5f53\u6587\u6863\u88ab\u5220\u9664\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u5220\u9664\u8868\u6765\u6807\u8bb0\u6587\u6863\u7684\u5220\u9664\u72b6\u6001\uff0c\u5b83\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a bitmap\u3002<\/p>\n<p><strong>3.3\u3001\u5012\u6392\u7d22\u5f15<\/strong><\/p>\n<p>\u5012\u6392\u7d22\u5f15\u7528\u4e8e\u6839\u636e term \u5feb\u901f\u67e5\u627e\u5305\u542b\u8be5 term \u7684\u6240\u6709\u6587\u6863\u3002\u7531\u4e8e\u91c7\u7528\u4e86\u8bfb\u5199\u5206\u79bb\u8bbe\u8ba1\uff0cESearch \u7684\u5012\u6392\u7d22\u5f15\u6570\u636e\u7ed3\u6784\u4e0d\u9700\u8981\u652f\u6301\u66f4\u65b0\uff0c\u6bcf\u4e2a term \u5bf9\u5e94\u7684 doc id \u96c6\u5408\u4ee5\u6709\u5e8f\u6570\u7ec4\u7684\u5f62\u5f0f\u5b58\u50a8\u5373\u53ef\u3002\u5bf9\u4e8e\u6587\u672c\u57df\uff0c\u5012\u6392\u6570\u636e\u8fd8\u5305\u542b\u8bcd\u9891\u3001\u8bcd\u6743\u3001\u4f4d\u7f6e\u7b49\u4fe1\u606f\u3002<\/p>\n<p>58 \u7684\u5173\u952e\u8bcd\u67e5\u8be2\u901a\u5e38\u9700\u8981\u5728\u591a\u4e2a\u6587\u672c\u57df\u4e2d\u67e5\u8be2\uff0c\u6bd4\u5982\u201ctitle: \u79df\u623f OR content: \u79df\u623f\u201d\uff0c\u9700\u8981\u53ec\u56de title \u6216\u8005 content \u8fd9\u4e24\u4e2a\u57df\u4e2d\u5305\u542b\u79df\u623f\u7684\u6587\u6863\u3002\u4e3a\u4e86\u4f18\u5316\u8fd9\u7c7b\u5e38\u89c1\u67e5\u8be2\u7684\u6027\u80fd\uff0c\u540c\u65f6\u4e5f\u8ba9\u6587\u672c\u76f8\u5173\u6027\u8ba1\u7b97\u66f4\u65b9\u4fbf\uff0cESearch \u652f\u6301\u5012\u6392\u57df\u6253\u5305\u529f\u80fd\uff08\u6216\u79f0\u8054\u5408\u57df\uff09\uff0c\u5373\u81ea\u52a8\u628a\u540c\u4e00\u4e2a term \u5728\u591a\u4e2a\u6587\u672c\u57df\u4e2d\u7684\u6587\u6863\u96c6\u5408\u5e76\u5230\u540c\u4e00\u4e2a\u5012\u6392\u94fe\uff08Posting List\uff09\u4e2d\uff0c\u6b64\u529f\u80fd\u53ea\u9700\u5728 schema \u4e2d\u7a0d\u4f5c\u914d\u7f6e\u5373\u53ef\u542f\u7528\u3002\u5982\u6b64\uff0c\u76f8\u5f53\u4e8e\u5728\u7d22\u5f15\u4e2d\u5bf9\u6bcf\u4e2a term \u9884\u8ba1\u7b97\u4e86\u591a\u4e2a\u57df\u7684\u5e76\u96c6\u3002\u53e6\u5916\uff0c\u7531\u4e8e\u4e0d\u540c\u6587\u672c\u57df\u7684\u6743\u91cd\u4e0d\u540c\uff0c\u8fdb\u884c\u6587\u672c\u76f8\u5173\u6027\u6253\u5206\u65f6\u9700\u8981\u8bc6\u522b\u51fa\u4e00\u4e2a term \u547d\u4e2d\u4e86\u54ea\u4e9b\u6587\u672c\u57df\uff0c\u56e0\u6b64\u8054\u5408\u57df\u5012\u6392\u94fe\u4e2d\u7684\u6bcf\u4e2a doc id \u8fd8\u5fc5\u987b\u9644\u5e26\u4e00\u4e2a\u5fae\u578b bitmap \u6765\u6807\u8bb0\u5176\u6240\u547d\u4e2d\u7684\u57df\u3002<\/p>\n<p>\u4e0b\u56fe\u4e3a\u628a Title \u57df\u548c Content \u57df\u5408\u5e76\u4e3a Fulltext 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class=\"a-image\" id=\"article-img-4\"><\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/F019.jpg\" alt=\"\"><\/p>\n<p>\u6b64\u5916\uff0c\u5bf9\u4e8e\u5e03\u5c14\u578b\u7684\u6b63\u6392\u57df\uff0c\u6211\u4eec\u76f4\u63a5\u91c7\u7528 Bitmap \u4f5c\u4e3a\u5b58\u50a8\u5f62\u5f0f\u3002<\/p>\n<p>\u5217\u5b58\u50a8\u7684\u4e00\u4e2a\u7f3a\u9677\u662f\u7f3a\u4e4f\u7a7a\u95f4\u5c40\u90e8\u6027\uff0c\u53ef\u80fd\u5f71\u54cd CPU 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