{"id":5464,"date":"2022-04-22T10:46:40","date_gmt":"2022-04-22T02:46:40","guid":{"rendered":"http:\/\/123.57.164.21\/?p=5464"},"modified":"2022-04-22T10:59:28","modified_gmt":"2022-04-22T02:59:28","slug":"%e3%80%8c%e6%89%ab%e7%9b%b2%e3%80%8d-elasticsearch","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=5464","title":{"rendered":"\u300c\u626b\u76f2\u300d Elasticsearch"},"content":{"rendered":"\n
\u524d\u8a00<\/h5>\n\n\n\n
\n\n\n\n

\u4e0d\u77e5\u9053\u5927\u5bb6\u7684\u516c\u53f8\u7528Elasticsearch\u591a\u4e0d\u591a\uff0c\u53cd\u6b63\u6211\u516c\u53f8\u7684\u662f\u6709\u5728\u7528\u7684\u3002\u5e73\u65f6\u542c\u540c\u4e8b\u4eec\u804a\u5929\u80af\u5b9a\u907f\u514d\u4e0d\u4e86\u4e0d\u8ba4\u8bc6\u7684\u6280\u672f\u6808\uff0c\u4f8b\u5982\u8bf4\uff1a\u628a\u6570\u636e\u653e\u5728\u5f15\u64ce\uff0c\u4ece\u5f15\u64ce\u53d6\u51fa\u6570\u636e\u7b49\u7b49\u3002<\/p>\n\n\n\n

\u5982\u679c\u5bf9\u5f15\u64ce\u4e0d\u4e86\u89e3\u7684\u540c\u5b66\uff0c\u5c31\u538b\u6839\u542c\u4e0d\u61c2\u4ed6\u4eec\u5728\u8bf4\u4ec0\u4e48\uff08\u6211\u5c31\u662f\u542c\u4e0d\u61c2\u7684\u4e00\u4f4d\uff0c\u624e\u5fc3\u4e86\uff09\u3002\u5f15\u64ce\u4e00\u822c\u6307\u7684\u662f\u641c\u7d22\u5f15\u64ce\uff0c\u73b0\u5728\u7528\u5f97\u6bd4\u8f83\u591a\u7684\u5c31\u662fElasticsearch\u3002<\/p>\n\n\n\n

\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u5bf9Elasticsearch\u4e00\u4e2a\u7b80\u5355\u7684\u5165\u95e8\uff0c\u6ca1\u6709\u9ad8\u6df1\u7684\u77e5\u8bc6\u548c\u4f7f\u7528\u3002\u81f3\u5c11\u6211\u60f3\u505a\u5230\u7684\u662f\uff1a\u4ee5\u540e\u540c\u4e8b\u4eec\u804a\u5f15\u64ce\u4e86\uff0c\u81f3\u5c11\u77e5\u9053\u4ed6\u4eec\u5728\u8bb2\u4ec0\u4e48\u3002<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n
\u4ec0\u4e48\u662fElasticsearch\uff1f<\/strong><\/h5>\n\n\n\n
\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

Elasticsearch \u662f\u4e00\u4e2a\u5b9e\u65f6<\/strong>\u7684\u5206\u5e03\u5f0f\u5b58\u50a8\u3001\u641c\u7d22\u3001\u5206\u6790<\/strong>\u7684\u5f15\u64ce\u3002<\/p>\n\n\n\n

\u4ecb\u7ecd\u90a3\u513f\u6709\u51e0\u4e2a\u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n

  • \u5b9e\u65f6<\/li>
  • \u5206\u5e03\u5f0f<\/li>
  • \u641c\u7d22<\/li>
  • \u5206\u6790<\/li><\/ul>\n\n\n\n

    \u4e8e\u662f\u6211\u4eec\u5c31\u5f97\u77e5\u9053Elasticsearch\u662f\u600e\u4e48\u505a\u5230\u5b9e\u65f6\u7684\uff0cElasticsearch\u7684\u67b6\u6784\u662f\u600e\u4e48\u6837\u7684\uff08\u5206\u5e03\u5f0f\uff09\u3002\u5b58\u50a8\u3001\u641c\u7d22\u548c\u5206\u6790\uff08\u5f97\u77e5\u9053Elasticsearch\u662f\u600e\u4e48\u5b58\u50a8\u3001\u641c\u7d22\u548c\u5206\u6790\u7684\uff09<\/p>\n\n\n\n

    \"\"<\/figure><\/div>\n\n\n\n
    \u4e3a\u4ec0\u4e48\u8981\u7528Elasticsearch\uff1f<\/h5>\n\n\n\n
    \n\n\n\n

    \u5728\u5b66\u4e60\u4e00\u9879\u6280\u672f\u4e4b\u524d\uff0c\u5fc5\u987b\u5148\u8981\u4e86\u89e3\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u8fd9\u9879\u6280\u672f\u3002\u6240\u4ee5\uff0c\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528Elasticsearch\u5462\uff1f\u6211\u4eec\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u5e93<\/strong>\u4e5f\u80fd\u505a\u5230\uff08\u5b9e\u65f6\u3001\u5b58\u50a8\u3001\u641c\u7d22\u3001\u5206\u6790\uff09\u3002<\/p>\n\n\n\n

    \u76f8\u5bf9\u4e8e\u6570\u636e\u5e93\uff0cElasticsearch\u7684\u5f3a\u5927\u4e4b\u5904\u5c31\u662f\u53ef\u4ee5\u6a21\u7cca\u67e5\u8be2<\/strong>\u3002<\/p>\n\n\n\n

    \u6709\u7684\u540c\u5b66\u53ef\u80fd\u5c31\u4f1a\u8bf4\uff1a\u6211\u6570\u636e\u5e93\u600e\u4e48\u5c31\u4e0d\u80fd\u6a21\u7cca\u67e5\u8be2\u4e86\uff1f\uff1f\u6211\u53cd\u624b\u5c31\u7ed9\u4f60\u5199\u4e00\u4e2aSQL\uff1a<\/p>\n\n\n\n

    \"\"<\/figure><\/div>\n\n\n\n

    \u8fd9\u4e0d\u5c31\u53ef\u4ee5\u628a\u516c\u4f17\u53f7Java3y<\/strong>\u76f8\u5173\u7684\u5185\u5bb9\u641c\u7d22\u51fa\u6765\u4e86\u5417\uff1f<\/p>\n\n\n\n

    \u7684\u786e\uff0c\u8fd9\u6837\u505a\u7684\u786e\u53ef\u4ee5\u3002\u4f46\u662f\u8981\u660e\u767d\u7684\u662f\uff1aname like %Java3y%<\/code>\u8fd9\u7c7b\u7684\u67e5\u8be2\u662f\u4e0d\u8d70\u7d22\u5f15<\/strong>\u7684\uff0c\u4e0d\u8d70\u7d22\u5f15\u610f\u5473\u7740\uff1a\u53ea\u8981\u4f60\u7684\u6570\u636e\u5e93\u7684\u91cf\u5f88\u5927\uff081\u4ebf\u6761\uff09\uff0c\u4f60\u7684\u67e5\u8be2\u80af\u5b9a\u4f1a\u662f\u79d2<\/strong>\u7ea7\u522b\u7684<\/p>\n\n\n\n

    \"\"<\/figure><\/div>\n\n\n\n

    \u800c\u4e14\uff0c\u5373\u4fbf\u7ed9\u4f60\u4ece\u6570\u636e\u5e93\u6839\u636e\u6a21\u7cca\u5339\u914d<\/strong>\u67e5\u51fa\u76f8\u5e94\u7684\u8bb0\u5f55\u4e86\uff0c\u90a3\u5f80\u5f80\u4f1a\u8fd4\u56de\u5927\u91cf\u7684\u6570\u636e<\/strong>\u7ed9\u4f60\uff0c\u5f80\u5f80\u4f60\u9700\u8981\u7684\u6570\u636e\u91cf\u5e76\u6ca1\u6709\u8fd9\u4e48\u591a\uff0c\u53ef\u80fd50\u6761\u8bb0\u5f55\u5c31\u8db3\u591f\u4e86\u3002<\/p>\n\n\n\n

    \u8fd8\u6709\u4e00\u4e2a\u5c31\u662f\uff1a\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u5f80\u5f80\u5e76\u6ca1\u6709\u8fd9\u4e48\u7684\u7cbe\u786e<\/strong>\uff0c\u6bd4\u5982\u6211\u4eceGoogle\u8f93\u5165ElastcSeach<\/code>\uff08\u6253\u9519\u5b57\uff09\uff0c\u4f46\u662fGoogle\u8fd8\u662f\u80fd\u4f30\u7b97\u6211\u60f3\u8f93\u5165\u7684\u662fElasticsearch<\/code><\/p>\n\n\n\n

    \"\"<\/figure><\/div>\n\n\n\n

    \u800cElasticsearch\u662f\u4e13\u95e8\u505a\u641c\u7d22<\/strong>\u7684\uff0c\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u4e0a\u9762\u6240\u8bb2\u7684\u95ee\u9898\u800c\u751f\u7684\uff0c\u6362\u53e5\u8bdd\u8bf4\uff1a<\/p>\n\n\n\n

    • Elasticsearch\u5bf9\u6a21\u7cca\u641c\u7d22\u975e\u5e38\u64c5\u957f\uff08\u641c\u7d22\u901f\u5ea6\u5f88\u5feb\uff09<\/li>
    • \u4eceElasticsearch\u641c\u7d22\u5230\u7684\u6570\u636e\u53ef\u4ee5\u6839\u636e\u8bc4\u5206<\/strong>\u8fc7\u6ee4\u6389\u5927\u90e8\u5206\u7684\uff0c\u53ea\u8981\u8fd4\u56de\u8bc4\u5206\u9ad8\u7684\u7ed9\u7528\u6237\u5c31\u597d\u4e86\uff08\u539f\u751f\u5c31\u652f\u6301\u6392\u5e8f\uff09<\/li>
    • \u6ca1\u6709\u90a3\u4e48\u51c6\u786e\u7684\u5173\u952e\u5b57\u4e5f\u80fd\u641c\u51fa\u76f8\u5173\u7684\u7ed3\u679c\uff08\u80fd\u5339\u914d\u6709\u76f8\u5173\u6027\u7684\u8bb0\u5f55\uff09<\/li><\/ul>\n\n\n\n

      \u4e0b\u9762\u6211\u4eec\u5c31\u6765\u5b66\u5b66\u4e3a\u4ec0\u4e48Elasticsearch\u53ef\u4ee5\u505a\u5230\u4e0a\u9762\u7684\u51e0\u70b9\u3002<\/p>\n\n\n\n

      Elasticsearch\u7684\u6570\u636e\u7ed3\u6784<\/h5>\n\n\n\n
      \n\n\n\n

      \u4f17\u6240\u5468\u77e5\uff0c\u4f60\u8981\u5728\u67e5\u8be2\u7684\u65f6\u5019\u82b1\u5f97\u66f4\u5c11\u7684\u65f6\u95f4\uff0c\u4f60\u5c31\u9700\u8981\u77e5\u9053\u4ed6\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\u662f\u600e\u4e48\u6837\u7684\uff1b\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n

      • \u6811\u578b\u7684\u67e5\u627e\u65f6\u95f4\u590d\u6742\u5ea6\u4e00\u822c\u662fO(logn)<\/li>
      • \u94fe\u8868\u7684\u67e5\u627e\u65f6\u95f4\u590d\u6742\u5ea6\u4e00\u822c\u662fO(n)<\/li>
      • \u54c8\u5e0c\u8868\u7684\u67e5\u627e\u65f6\u95f4\u590d\u6742\u5ea6\u4e00\u822c\u662fO(1)<\/li>
      • \u2026.\u4e0d\u540c\u7684\u6570\u636e\u7ed3\u6784\u6240\u82b1\u7684\u65f6\u95f4\u5f80\u5f80\u4e0d\u4e00\u6837\uff0c\u4f60\u60f3\u8981\u67e5\u627e\u7684\u65f6\u5019\u8981\u5feb<\/strong>\uff0c\u5c31\u9700\u8981\u6709\u5e95\u5c42\u7684\u6570\u636e\u7ed3\u6784\u652f\u6301<\/li><\/ul>\n\n\n\n

        \u4ece\u4e0a\u9762\u8bf4Elasticsearch\u7684\u6a21\u7cca\u67e5\u8be2\u901f\u5ea6\u5f88\u5feb\uff0c\u90a3Elasticsearch\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\u662f\u4ec0\u4e48\u5462\uff1f\u6211\u4eec\u6765\u770b\u770b\u3002<\/p>\n\n\n\n

        \u6211\u4eec\u6839\u636e\u201c\u5b8c\u6574\u7684\u6761\u4ef6<\/strong>\u201d\u67e5\u627e\u4e00\u6761\u8bb0\u5f55\u53eb\u505a\u6b63\u5411\u7d22\u5f15<\/strong>\uff1b\u6211\u4eec\u4e00\u672c\u4e66\u7684\u7ae0\u8282\u76ee\u5f55\u5c31\u662f\u6b63\u5411\u7d22\u5f15\uff0c\u901a\u8fc7\u7ae0\u8282\u540d\u79f0\u5c31\u627e\u5230\u5bf9\u5e94\u7684\u9875\u7801\u3002<\/p>\n\n\n\n

        \"\"<\/figure><\/div>\n\n\n\n

        \u9996\u5148\u6211\u4eec\u5f97\u77e5\u9053\u4e3a\u4ec0\u4e48Elasticsearch\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u5b9e\u73b0\u5feb\u901f\u7684\u201c\u6a21\u7cca\u5339\u914d<\/strong>\u201d\/\u201c\u76f8\u5173\u6027\u67e5\u8be2<\/strong>\u201d\uff0c\u5b9e\u9645\u4e0a\u662f\u4f60\u5199\u5165\u6570\u636e\u5230Elasticsearch\u7684\u65f6\u5019\u4f1a\u8fdb\u884c\u5206\u8bcd<\/strong>\u3002<\/p>\n\n\n\n

        \u8fd8\u662f\u4ee5\u4e0a\u56fe\u4e3a\u4f8b\uff0c\u4e0a\u56fe\u51fa\u73b0\u4e864\u6b21\u201c\u7b97\u6cd5<\/strong>\u201d\u8fd9\u4e2a\u8bcd\uff0c\u6211\u4eec\u80fd\u4e0d\u80fd\u6839\u636e\u8fd9\u6b21\u8bcd\u4e3a\u5b83\u627e\u4ed6\u5bf9\u5e94\u7684\u76ee\u5f55\uff1fElasticsearch\u6b63\u662f\u8fd9\u6837\u5e72\u7684\uff0c\u5982\u679c\u6211\u4eec\u6839\u636e\u4e0a\u56fe\u6765\u505a\u8fd9\u4e2a\u4e8b\uff0c\u4f1a\u5f97\u5230\u7c7b\u4f3c\u8fd9\u6837\u7684\u7ed3\u679c\uff1a<\/p>\n\n\n\n

            \u7b97\u6cd5  ->2,13,42,56<\/pre>\n\n\n\n
        \u8fd9\u4ee3\u8868\u7740\u201c\u7b97\u6cd5\u201d\u8fd9\u4e2a\u8bcd\u80af\u5b9a\u662f\u5728\u7b2c\u4e8c\u9875\u3001\u7b2c\u5341\u4e09\u9875\u3001\u7b2c\u56db\u5341\u4e8c\u9875\u3001\u7b2c\u4e94\u5341\u516d\u9875\u51fa\u73b0\u8fc7\u3002\u8fd9\u79cd\u6839\u636e\u67d0\u4e2a\u8bcd<\/strong>(\u4e0d\u5b8c\u6574\u7684\u6761\u4ef6)\u518d\u67e5\u627e\u5bf9\u5e94\u8bb0\u5f55\uff0c\u53eb\u505a\u5012\u6392\u7d22\u5f15<\/strong>\u3002<\/p>\n\n\n\n
        \u518d\u770b\u4e0b\u9762\u7684\u56fe\uff0c\u597d\u597d\u4f53\u4f1a\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
        \"\"<\/figure><\/div>\n\n\n\n
        \u4f17\u6240\u5468\u77e5\uff0c\u4e16\u754c\u4e0a\u6709\u8fd9\u4e48\u591a\u7684\u8bed\u8a00\uff0c\u90a3Elasticsearch\u600e\u4e48\u5207\u5206\u8fd9\u4e9b\u8bcd\u5462\uff1f<\/strong>\uff0cElasticsearch\u5185\u7f6e<\/strong>\u4e86\u4e00\u4e9b\u5206\u8bcd\u5668<\/p>\n\n\n\n
        • Standard  Analyzer \u3002\u6309\u8bcd\u5207\u5206\uff0c\u5c06\u8bcd\u5c0f\u5199<\/li>
        • Simple Analyzer\u3002\u6309\u975e\u5b57\u6bcd\u8fc7\u6ee4\uff08\u7b26\u53f7\u88ab\u8fc7\u6ee4\u6389\uff09\uff0c\u5c06\u8bcd\u5c0f\u5199<\/li>
        • WhitespaceAnalyzer\u3002\u6309\u7167\u7a7a\u683c\u5207\u5206\uff0c\u4e0d\u8f6c\u5c0f\u5199<\/li>
        • \u2026.\u7b49\u7b49\u7b49<\/li><\/ul>\n\n\n\n
          Elasticsearch\u5206\u8bcd\u5668\u4e3b\u8981\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n\n\n\n
          • Character Filters\uff08\u6587\u672c\u8fc7\u6ee4\u5668\uff0c\u53bb\u9664HTML\uff09<\/li>
          • Tokenizer\uff08\u6309\u7167\u89c4\u5219\u5207\u5206\uff0c\u6bd4\u5982\u7a7a\u683c\uff09<\/li>
          • TokenFilter\uff08\u5c06\u5207\u5206\u540e\u7684\u8bcd\u8fdb\u884c\u5904\u7406\uff0c\u6bd4\u5982\u8f6c\u6210\u5c0f\u5199\uff09<\/li><\/ul>\n\n\n\n
            \u663e\u7136\uff0cElasticsearch\u662f\u8001\u5916\u5199\u7684\uff0c\u5185\u7f6e\u7684\u5206\u8bcd\u5668\u90fd\u662f\u82f1\u6587\u7c7b\u7684\uff0c\u800c\u6211\u4eec\u7528\u6237\u641c\u7d22\u7684\u65f6\u5019\u5f80\u5f80\u641c\u7684\u662f\u4e2d\u6587\uff0c\u73b0\u5728\u4e2d\u6587\u5206\u8bcd\u5668\u7528\u5f97\u6700\u591a\u7684\u5c31\u662fIK<\/strong>\u3002<\/p>\n\n\n\n
            \u626f\u4e86\u4e00\u5927\u5806\uff0c\u90a3Elasticsearch\u7684\u6570\u636e\u7ed3\u6784\u662f\u600e\u4e48\u6837\u7684\u5462\uff1f\u770b\u4e0b\u9762\u7684\u56fe\uff1a<\/p>\n\n\n\n
            \"\"<\/figure><\/div>\n\n\n\n
            \u6211\u4eec\u8f93\u5165\u4e00\u6bb5\u6587\u5b57\uff0cElasticsearch\u4f1a\u6839\u636e\u5206\u8bcd\u5668\u5bf9\u6211\u4eec\u7684\u90a3\u6bb5\u6587\u5b57\u8fdb\u884c\u5206\u8bcd<\/strong>\uff08\u4e5f\u5c31\u662f\u56fe\u4e0a\u6240\u770b\u5230\u7684Ada\/Allen\/Sara..)\uff0c\u8fd9\u4e9b\u5206\u8bcd\u6c47\u603b\u8d77\u6765\u6211\u4eec\u53eb\u505aTerm Dictionary<\/code>\uff0c\u800c\u6211\u4eec\u9700\u8981\u901a\u8fc7\u5206\u8bcd\u627e\u5230\u5bf9\u5e94\u7684\u8bb0\u5f55\uff0c\u8fd9\u4e9b\u6587\u6863ID\u4fdd\u5b58\u5728PostingList<\/code><\/p>\n\n\n\n
            \u5728Term Dictionary<\/code>\u4e2d\u7684\u8bcd\u7531\u4e8e\u662f\u975e\u5e38\u975e\u5e38\u591a\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u4f1a\u4e3a\u5176\u8fdb\u884c\u6392\u5e8f<\/strong>\uff0c\u7b49\u8981\u67e5\u627e\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u901a\u8fc7\u4e8c\u5206<\/strong>\u6765\u67e5\uff0c\u4e0d\u9700\u8981\u904d\u5386\u6574\u4e2aTerm Dictionary<\/code><\/p>\n\n\n\n
            \u7531\u4e8eTerm Dictionary<\/code>\u7684\u8bcd\u5b9e\u5728\u592a\u591a\u4e86\uff0c\u4e0d\u53ef\u80fd\u628aTerm Dictionary<\/code>\u6240\u6709\u7684\u8bcd\u90fd\u653e\u5728\u5185\u5b58\u4e2d\uff0c\u4e8e\u662fElasticsearch\u8fd8\u62bd\u4e86\u4e00\u5c42\u53eb\u505aTerm Index<\/code>\uff0c\u8fd9\u5c42\u53ea\u5b58\u50a8  \u90e8\u5206   \u8bcd\u7684\u524d\u7f00<\/strong>\uff0cTerm Index<\/code>\u4f1a\u5b58\u5728\u5185\u5b58\u4e2d\uff08\u68c0\u7d22\u4f1a\u7279\u522b\u5feb\uff09<\/p>\n\n\n\n
            Term Index<\/code>\u5728\u5185\u5b58\u4e2d\u662f\u4ee5FST<\/strong>\uff08Finite State Transducers\uff09\u7684\u5f62\u5f0f\u4fdd\u5b58\u7684\uff0c\u5176\u7279\u70b9\u662f\u975e\u5e38\u8282\u7701\u5185\u5b58<\/strong>\u3002FST\u6709\u4e24\u4e2a\u4f18\u70b9\uff1a<\/p>\n\n\n\n
            • 1\uff09\u7a7a\u95f4\u5360\u7528\u5c0f\u3002\u901a\u8fc7\u5bf9\u8bcd\u5178\u4e2d\u5355\u8bcd\u524d\u7f00\u548c\u540e\u7f00\u7684\u91cd\u590d\u5229\u7528\uff0c\u538b\u7f29\u4e86\u5b58\u50a8\u7a7a\u95f4\uff1b<\/li>
            • 2\uff09\u67e5\u8be2\u901f\u5ea6\u5feb\u3002O(len(str))\u7684\u67e5\u8be2\u65f6\u95f4\u590d\u6742\u5ea6\u3002<\/li><\/ul>\n\n\n\n
              \u524d\u9762\u8bb2\u5230\u4e86Term Index<\/code>\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\uff0c\u4e14Elasticsearch\u7528FST<\/strong>\uff08Finite State Transducers\uff09\u7684\u5f62\u5f0f\u4fdd\u5b58\uff08\u8282\u7701\u5185\u5b58\u7a7a\u95f4\uff09\u3002Term Dictionary<\/code>\u5728Elasticsearch\u4e5f\u662f\u4e3a\u4ed6\u8fdb\u884c\u6392\u5e8f\uff08\u67e5\u627e\u7684\u65f6\u5019\u65b9\u4fbf\uff09\uff0c\u5176\u5b9ePostingList<\/code>\u4e5f\u6709\u5bf9\u5e94\u7684\u4f18\u5316\u3002<\/p>\n\n\n\n
              PostingList<\/code>\u4f1a\u4f7f\u7528Frame Of Reference\uff08FOR<\/strong>\uff09\u7f16\u7801\u6280\u672f\u5bf9\u91cc\u8fb9\u7684\u6570\u636e\u8fdb\u884c\u538b\u7f29\uff0c\u8282\u7ea6\u78c1\u76d8\u7a7a\u95f4<\/strong>\u3002<\/p>\n\n\n\n
              \"\"<\/figure><\/div>\n\n\n\n
              PostingList<\/code>\u91cc\u8fb9\u5b58\u7684\u662f\u6587\u6863ID\uff0c\u6211\u4eec\u67e5\u7684\u65f6\u5019\u5f80\u5f80\u9700\u8981\u5bf9\u8fd9\u4e9b\u6587\u6863ID\u505a\u4ea4\u96c6\u548c\u5e76\u96c6<\/strong>\u7684\u64cd\u4f5c\uff08\u6bd4\u5982\u5728\u591a\u6761\u4ef6\u67e5\u8be2\u65f6)\uff0cPostingList<\/code>\u4f7f\u7528Roaring Bitmaps<\/strong>\u6765\u5bf9\u6587\u6863ID\u8fdb\u884c\u4ea4\u5e76\u96c6\u64cd\u4f5c\u3002<\/p>\n\n\n\n
              \u4f7f\u7528Roaring Bitmaps<\/strong>\u7684\u597d\u5904\u5c31\u662f\u53ef\u4ee5\u8282\u7701\u7a7a\u95f4\u548c\u5feb\u901f\u5f97\u51fa\u4ea4\u5e76\u96c6\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n
              \"\"<\/figure><\/div>\n\n\n\n
              \u6240\u4ee5\u5230\u8fd9\u91cc\u6211\u4eec\u603b\u7ed3\u4e00\u4e0bElasticsearch\u7684\u6570\u636e\u7ed3\u6784\u6709\u4ec0\u4e48\u7279\u70b9\uff1a<\/p>\n\n\n\n
              \"\"<\/figure><\/div>\n\n\n\n
              Elasticsearch\u7684\u672f\u8bed\u548c\u67b6\u6784<\/h5>\n\n\n\n
              \u4ece\u5b98\u7f51\u7684\u4ecb\u7ecd\u6211\u4eec\u5df2\u7ecf\u77e5\u9053Elasticsearch\u662f\u5206\u5e03\u5f0f<\/strong>\u5b58\u50a8\u7684\uff0c\u5982\u679c\u770b\u8fc7\u6211\u7684\u6587\u7ae0\u7684\u540c\u5b66\uff0c\u5bf9\u5206\u5e03\u5f0f<\/strong>\u8fd9\u4e2a\u6982\u5ff5\u5e94\u8be5\u4e0d\u964c\u751f\u4e86\u3002<\/p>\n\n\n\n
              \"\"<\/figure><\/div>\n\n\n\n
              \u5728\u8bb2\u89e3Elasticsearch\u7684\u67b6\u6784\u4e4b\u524d\uff0c\u9996\u5148\u6211\u4eec\u5f97\u4e86\u89e3\u4e00\u4e0bElasticsearch\u7684\u4e00\u4e9b\u5e38\u89c1\u672f\u8bed\u3002<\/p>\n\n\n\n
              • Index<\/strong>\uff1aElasticsearch\u7684Index\u76f8\u5f53\u4e8e\u6570\u636e\u5e93\u7684Table<\/li>
              • Type<\/strong>\uff1a\u8fd9\u4e2a\u5728\u65b0\u7684Elasticsearch\u7248\u672c\u5df2\u7ecf\u5e9f\u9664\uff08\u5728\u4ee5\u524d\u7684Elasticsearch\u7248\u672c\uff0c\u4e00\u4e2aIndex\u4e0b\u652f\u6301\u591a\u4e2aType–\u6709\u70b9\u7c7b\u4f3c\u4e8e\u6d88\u606f\u961f\u5217\u4e00\u4e2atopic\u4e0b\u591a\u4e2agroup\u7684\u6982\u5ff5\uff09<\/li>
              • Document<\/strong>\uff1aDocument\u76f8\u5f53\u4e8e\u6570\u636e\u5e93\u7684\u4e00\u884c\u8bb0\u5f55<\/li>
              • Field<\/strong>\uff1a\u76f8\u5f53\u4e8e\u6570\u636e\u5e93\u7684Column\u7684\u6982\u5ff5<\/li>
              • Mapping<\/strong>\uff1a\u76f8\u5f53\u4e8e\u6570\u636e\u5e93\u7684Schema\u7684\u6982\u5ff5<\/li>
              • DSL<\/strong>\uff1a\u76f8\u5f53\u4e8e\u6570\u636e\u5e93\u7684SQL\uff08\u7ed9\u6211\u4eec\u8bfb\u53d6Elasticsearch\u6570\u636e\u7684API\uff09<\/li><\/ul>\n\n\n\n
                \"\"<\/figure><\/div>\n\n\n\n
                \u76f8\u4fe1\u5927\u5bb6\u770b\u5b8c\u4e0a\u9762\u7684\u5bf9\u6bd4\u56fe\uff0c\u5bf9Elasticsearch\u7684\u4e00\u4e9b\u672f\u8bed\u5c31\u4e0d\u96be\u7406\u89e3\u4e86\u3002\u90a3Elasticsearch\u7684\u67b6\u6784\u662f\u600e\u4e48\u6837\u7684\u5462\uff1f\u4e0b\u9762\u6211\u4eec\u6765\u770b\u770b\uff1a<\/p>\n\n\n\n
                \u4e00\u4e2aElasticsearch\u96c6\u7fa4\u4f1a\u6709\u591a\u4e2aElasticsearch\u8282\u70b9\uff0c\u6240\u8c13\u8282\u70b9\u5b9e\u9645\u4e0a\u5c31\u662f\u8fd0\u884c\u7740Elasticsearch\u8fdb\u7a0b\u7684\u673a\u5668\u3002<\/p>\n\n\n\n
                \"\"<\/figure><\/div>\n\n\n\n
                \u5728\u4f17\u591a\u7684\u8282\u70b9\u4e2d\uff0c\u5176\u4e2d\u4f1a\u6709\u4e00\u4e2aMaster Node<\/code>\uff0c\u5b83\u4e3b\u8981\u8d1f\u8d23\u7ef4\u62a4\u7d22\u5f15\u5143\u6570\u636e\u3001\u8d1f\u8d23\u5207\u6362\u4e3b\u5206\u7247\u548c\u526f\u672c\u5206\u7247\u8eab\u4efd\u7b49\u5de5\u4f5c\uff08\u540e\u9762\u4f1a\u8bb2\u5230\u5206\u7247\u7684\u6982\u5ff5\uff09\uff0c\u5982\u679c\u4e3b\u8282\u70b9\u6302\u4e86\uff0c\u4f1a\u9009\u4e3e\u51fa\u4e00\u4e2a\u65b0\u7684\u4e3b\u8282\u70b9\u3002<\/p>\n\n\n\n
                \"\"<\/figure><\/div>\n\n\n\n
                \u4ece\u4e0a\u9762\u6211\u4eec\u4e5f\u5df2\u7ecf\u5f97\u77e5\uff0cElasticsearch\u6700\u5916\u5c42\u7684\u662fIndex\uff08\u76f8\u5f53\u4e8e\u6570\u636e\u5e93 \u8868\u7684\u6982\u5ff5\uff09\uff1b\u4e00\u4e2aIndex\u7684\u6570\u636e\u6211\u4eec\u53ef\u4ee5\u5206\u53d1\u5230\u4e0d\u540c\u7684Node\u4e0a\u8fdb\u884c\u5b58\u50a8\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u5c31\u53eb\u505a\u5206\u7247<\/strong>\u3002<\/p>\n\n\n\n
                \u6bd4\u5982\u73b0\u5728\u6211\u96c6\u7fa4\u91cc\u8fb9\u67094\u4e2a\u8282\u70b9\uff0c\u6211\u73b0\u5728\u6709\u4e00\u4e2aIndex\uff0c\u60f3\u5c06\u8fd9\u4e2aIndex\u57284\u4e2a\u8282\u70b9\u4e0a\u5b58\u50a8\uff0c\u90a3\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e3a4\u4e2a\u5206\u7247\u3002\u8fd94\u4e2a\u5206\u7247\u7684\u6570\u636e\u5408\u8d77\u6765<\/strong>\u5c31\u662fIndex\u7684\u6570\u636e<\/p>\n\n\n\n
                \"\"<\/figure><\/div>\n\n\n\n
                \u4e3a\u4ec0\u4e48\u8981\u5206\u7247\uff1f\u539f\u56e0\u4e5f\u5f88\u7b80\u5355\uff1a<\/p>\n\n\n\n
                • \u5982\u679c\u4e00\u4e2aIndex\u7684\u6570\u636e\u91cf\u592a\u5927\uff0c\u53ea\u6709\u4e00\u4e2a\u5206\u7247\uff0c\u90a3\u53ea\u4f1a\u5728\u4e00\u4e2a\u8282\u70b9\u4e0a\u5b58\u50a8\uff0c\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u957f\uff0c\u4e00\u4e2a\u8282\u70b9\u672a\u5fc5\u80fd\u628a\u4e00\u4e2aIndex\u5b58\u50a8\u4e0b\u6765\u3002<\/li>
                • \u591a\u4e2a\u5206\u7247\uff0c\u5728\u5199\u5165\u6216\u67e5\u8be2\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u5e76\u884c\u64cd\u4f5c\uff08\u4ece\u5404\u4e2a\u8282\u70b9\u4e2d\u8bfb\u5199\u6570\u636e\uff0c\u63d0\u9ad8\u541e\u5410\u91cf\uff09<\/li><\/ul>\n\n\n\n
                  \u73b0\u5728\u95ee\u9898\u6765\u4e86\uff0c\u5982\u679c\u67d0\u4e2a\u8282\u70b9\u6302\u4e86\uff0c\u90a3\u90e8\u5206\u6570\u636e\u5c31\u4e22\u4e86\u5417\uff1f\u663e\u7136Elasticsearch\u4e5f\u4f1a\u60f3\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u6240\u4ee5\u5206\u7247\u4f1a\u6709\u4e3b\u5206\u7247\u548c\u526f\u672c\u5206\u7247\u4e4b\u5206\uff08\u4e3a\u4e86\u5b9e\u73b0\u9ad8\u53ef\u7528<\/strong>\uff09<\/p>\n\n\n\n
                  \u6570\u636e\u5199\u5165\u7684\u65f6\u5019\u662f\u5199\u5230\u4e3b\u5206\u7247<\/strong>\uff0c\u526f\u672c\u5206\u7247\u4f1a\u590d\u5236<\/strong>\u4e3b\u5206\u7247\u7684\u6570\u636e\uff0c\u8bfb\u53d6\u7684\u65f6\u5019\u4e3b\u5206\u7247\u548c\u526f\u672c\u5206\u7247\u90fd\u53ef\u4ee5\u8bfb<\/strong>\u3002<\/p>\n\n\n\n
                  \"\"<\/figure><\/div>\n\n\n\n
                  \"\"<\/figure><\/div>\n\n\n\n
                  \u5982\u679c\u67d0\u4e2a\u8282\u70b9\u6302\u4e86\uff0c\u524d\u9762\u6240\u63d0\u9ad8\u7684Master Node<\/code>\u5c31\u4f1a\u628a\u5bf9\u5e94\u7684\u526f\u672c\u5206\u7247\u63d0\u62d4\u4e3a\u4e3b\u5206\u7247\uff0c\u8fd9\u6837\u5373\u4fbf\u8282\u70b9\u6302\u4e86\uff0c\u6570\u636e\u5c31\u4e0d\u4f1a\u4e22\u3002<\/p>\n\n\n\n
                  \u5230\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u603b\u7ed3\u4e00\u4e0bElasticsearch\u7684\u67b6\u6784\u4e86\uff1a<\/p>\n\n\n\n
                  \"\"<\/figure><\/div>\n\n\n\n
                  Elasticsearch \u5199\u5165\u7684\u6d41\u7a0b<\/h6>\n\n\n\n
                  \n\n\n\n
                  \u4e0a\u9762\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u5f53\u6211\u4eec\u5411Elasticsearch\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u662f\u5199\u5230\u4e3b\u5206\u7247\u4e0a\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3\u66f4\u591a\u7684\u7ec6\u8282\u3002<\/p>\n\n\n\n
                  \u5ba2\u6237\u7aef\u5199\u5165\u4e00\u6761\u6570\u636e\uff0c\u5230Elasticsearch\u96c6\u7fa4\u91cc\u8fb9\u5c31\u662f\u7531\u8282\u70b9<\/strong>\u6765\u5904\u7406\u8fd9\u6b21\u8bf7\u6c42\uff1a<\/p>\n\n\n\n
                  \"\"<\/figure><\/div>\n\n\n\n
                  \u96c6\u7fa4\u4e0a\u7684\u6bcf\u4e2a\u8282\u70b9\u90fd\u662fcoordinating node<\/code>\uff08\u534f\u8c03\u8282\u70b9<\/strong>\uff09\uff0c\u534f\u8c03\u8282\u70b9\u8868\u660e\u8fd9\u4e2a\u8282\u70b9\u53ef\u4ee5\u505a\u8def\u7531<\/strong>\u3002\u6bd4\u5982\u8282\u70b91<\/strong>\u63a5\u6536\u5230\u4e86\u8bf7\u6c42\uff0c\u4f46\u53d1\u73b0\u8fd9\u4e2a\u8bf7\u6c42\u7684\u6570\u636e\u5e94\u8be5\u662f\u7531\u8282\u70b92<\/strong>\u5904\u7406\uff08\u56e0\u4e3a\u4e3b\u5206\u7247\u5728\u8282\u70b92<\/strong>\u4e0a\uff09\uff0c\u6240\u4ee5\u4f1a\u628a\u8bf7\u6c42\u8f6c\u53d1\u5230\u8282\u70b92<\/strong>\u4e0a\u3002<\/p>\n\n\n\n
                  • coodinate\uff08\u534f\u8c03<\/strong>\uff09\u8282\u70b9\u901a\u8fc7hash\u7b97\u6cd5\u53ef\u4ee5\u8ba1\u7b97\u51fa\u662f\u5728\u54ea\u4e2a\u4e3b\u5206\u7247\u4e0a\uff0c\u7136\u540e\u8def\u7531\u5230\u5bf9\u5e94\u7684\u8282\u70b9<\/strong><\/li>
                  • shard = hash(document_id) % (num_of_primary_shards)<\/code><\/li><\/ul>\n\n\n\n
                    \u8def\u7531\u5230\u5bf9\u5e94\u7684\u8282\u70b9\u4ee5\u53ca\u5bf9\u5e94\u7684\u4e3b\u5206\u7247\u65f6\uff0c\u4f1a\u505a\u4ee5\u4e0b\u7684\u4e8b\uff1a<\/p>\n\n\n\n
                    • \u5c06\u6570\u636e\u5199\u5230\u5185\u5b58\u7f13\u5b58\u533a<\/li>
                    • \u7136\u540e\u5c06\u6570\u636e\u5199\u5230translog\u7f13\u5b58\u533a<\/li>
                    • \u6bcf\u96941s<\/strong>\u6570\u636e\u4ecebuffer\u4e2drefresh\u5230FileSystemCache\u4e2d\uff0c\u751f\u6210segment\u6587\u4ef6\uff0c\u4e00\u65e6\u751f\u6210segment\u6587\u4ef6\uff0c\u5c31\u80fd\u901a\u8fc7\u7d22\u5f15\u67e5\u8be2\u5230\u4e86<\/li>
                    • refresh\u5b8c\uff0cmemory buffer\u5c31\u6e05\u7a7a\u4e86\u3002<\/li>
                    • \u6bcf\u96945s<\/strong>\u4e2d\uff0ctranslog \u4ecebuffer flush\u5230\u78c1\u76d8\u4e2d<\/li>
                    • \u5b9a\u671f\/\u5b9a\u91cf\u4eceFileSystemCache\u4e2d,\u7ed3\u5408translog\u5185\u5bb9flush index<\/code>\u5230\u78c1\u76d8\u4e2d\u3002<\/li><\/ul>\n\n\n\n
                      \"\"<\/figure><\/div>\n\n\n\n
                      \u89e3\u91ca\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
                      • Elasticsearch\u4f1a\u628a\u6570\u636e\u5148\u5199\u5165\u5185\u5b58\u7f13\u51b2\u533a\uff0c\u7136\u540e\u6bcf\u96941s<\/strong>\u5237\u65b0\u5230\u6587\u4ef6\u7cfb\u7edf\u7f13\u5b58\u533a\uff08\u5f53\u6570\u636e\u88ab\u5237\u65b0\u5230\u6587\u4ef6\u7cfb\u7edf\u7f13\u51b2\u533a\u4ee5\u540e\uff0c\u6570\u636e\u624d\u53ef\u4ee5\u88ab\u68c0\u7d22\u5230\uff09\u3002\u6240\u4ee5\uff1aElasticsearch\u5199\u5165\u7684\u6570\u636e\u9700\u89811s<\/strong>\u624d\u80fd\u67e5\u8be2\u5230<\/li>
                      • \u4e3a\u4e86\u9632\u6b62\u8282\u70b9\u5b95\u673a\uff0c\u5185\u5b58\u4e2d\u7684\u6570\u636e\u4e22\u5931\uff0cElasticsearch\u4f1a\u53e6\u5199\u4e00\u4efd\u6570\u636e\u5230\u65e5\u5fd7\u6587\u4ef6<\/strong>\u4e0a\uff0c\u4f46\u6700\u5f00\u59cb\u7684\u8fd8\u662f\u5199\u5230\u5185\u5b58\u7f13\u51b2\u533a\uff0c\u6bcf\u96945s<\/strong>\u624d\u4f1a\u5c06\u7f13\u51b2\u533a\u7684\u5237\u5230\u78c1\u76d8\u4e2d\u3002\u6240\u4ee5\uff1aElasticsearch\u67d0\u4e2a\u8282\u70b9\u5982\u679c\u6302\u4e86\uff0c\u53ef\u80fd\u4f1a\u9020\u6210\u67095s<\/strong>\u7684\u6570\u636e\u4e22\u5931\u3002<\/li>
                      • \u7b49\u5230\u78c1\u76d8\u4e0a\u7684translog\u6587\u4ef6\u5927\u5230\u4e00\u5b9a\u7a0b\u5ea6\u6216\u8005\u8d85\u8fc7\u4e8630\u5206\u949f\uff0c\u4f1a\u89e6\u53d1commit<\/strong>\u64cd\u4f5c\uff0c\u5c06\u5185\u5b58\u4e2d\u7684segement\u6587\u4ef6\u5f02\u6b65\u5237\u5230\u78c1\u76d8\u4e2d\uff0c\u5b8c\u6210\u6301\u4e45\u5316\u64cd\u4f5c\u3002<\/li><\/ul>\n\n\n\n
                        \u8bf4\u767d\u4e86\u5c31\u662f\uff1a\u5199\u5185\u5b58\u7f13\u51b2\u533a\uff08\u5b9a\u65f6<\/strong>\u53bb\u751f\u6210segement\uff0c\u751f\u6210translog\uff09\uff0c\u80fd\u591f\u8ba9\u6570\u636e\u80fd\u88ab\u7d22\u5f15\u3001\u88ab\u6301\u4e45\u5316<\/strong>\u3002\u6700\u540e\u901a\u8fc7commit\u5b8c\u6210\u4e00\u6b21\u7684\u6301\u4e45\u5316\u3002<\/p>\n\n\n\n
                        \"\"<\/figure><\/div>\n\n\n\n
                        \u7b49\u4e3b\u5206\u7247\u5199\u5b8c\u4e86\u4ee5\u540e\uff0c\u4f1a\u5c06\u6570\u636e\u5e76\u884c\u53d1\u9001\u5230\u526f\u672c\u96c6\u8282\u70b9\u4e0a\uff0c\u7b49\u5230\u6240\u6709\u7684\u8282\u70b9\u5199\u5165\u6210\u529f\u5c31\u8fd4\u56deack<\/strong>\u7ed9\u534f\u8c03\u8282\u70b9\uff0c\u534f\u8c03\u8282\u70b9\u8fd4\u56deack<\/strong>\u7ed9\u5ba2\u6237\u7aef\uff0c\u5b8c\u6210\u4e00\u6b21\u7684\u5199\u5165\u3002<\/p>\n\n\n\n
                        Elasticsearch \u66f4\u65b0\u548c\u5220\u9664<\/h5>\n\n\n\n
                        \n\n\n\n
                        Elasticsearch\u7684\u66f4\u65b0\u548c\u5220\u9664\u64cd\u4f5c\u6d41\u7a0b\uff1a<\/p>\n\n\n\n
                        • \u7ed9\u5bf9\u5e94\u7684doc<\/code>\u8bb0\u5f55\u6253\u4e0a.del<\/code>\u6807\u8bc6\uff0c\u5982\u679c\u662f\u5220\u9664\u64cd\u4f5c\u5c31\u6253\u4e0adelete<\/code>\u72b6\u6001\uff0c\u5982\u679c\u662f\u66f4\u65b0\u64cd\u4f5c\u5c31\u628a\u539f\u6765\u7684doc<\/code>\u6807\u5fd7\u4e3adelete<\/code>\uff0c\u7136\u540e\u91cd\u65b0\u65b0\u5199\u5165\u4e00\u6761\u6570\u636e<\/li><\/ul>\n\n\n\n
                          \u524d\u9762\u63d0\u5230\u4e86\uff0c\u6bcf\u96941s<\/strong>\u4f1a\u751f\u6210\u4e00\u4e2asegement \u6587\u4ef6\uff0c\u90a3segement\u6587\u4ef6\u4f1a\u8d8a\u6765\u8d8a\u591a\u8d8a\u6765\u8d8a\u591a\u3002Elasticsearch\u4f1a\u6709\u4e00\u4e2amerge<\/strong>\u4efb\u52a1\uff0c\u4f1a\u5c06\u591a\u4e2asegement\u6587\u4ef6\u5408\u5e76<\/strong>\u6210\u4e00\u4e2asegement\u6587\u4ef6\u3002<\/p>\n\n\n\n
                          \u5728\u5408\u5e76\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u628a\u5e26\u6709delete<\/code>\u72b6\u6001\u7684doc<\/code>\u7ed9\u7269\u7406\u5220\u9664<\/strong>\u6389\u3002<\/p>\n\n\n\n
                          \"\"<\/figure><\/div>\n\n\n\n
                          Elasticsearch \u67e5\u8be2<\/h5>\n\n\n\n
                          \n\n\n\n
                          \u67e5\u8be2\u6211\u4eec\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff1a<\/p>\n\n\n\n
                          • \u6839\u636eID\u67e5\u8be2doc<\/li>
                          • \u6839\u636equery\uff08\u641c\u7d22\u8bcd\uff09\u53bb\u67e5\u8be2\u5339\u914d\u7684doc<\/li><\/ul>\n\n\n\n
                            \"\"<\/figure><\/div>\n\n\n\n
                            \u6839\u636eID<\/strong>\u53bb\u67e5\u8be2\u5177\u4f53\u7684doc\u7684\u6d41\u7a0b\u662f\uff1a<\/p>\n\n\n\n
                            • \u68c0\u7d22\u5185\u5b58\u7684Translog\u6587\u4ef6<\/li>
                            • \u68c0\u7d22\u786c\u76d8\u7684Translog\u6587\u4ef6<\/li>
                            • \u68c0\u7d22\u786c\u76d8\u7684Segement\u6587\u4ef6<\/li><\/ul>\n\n\n\n
                              \u6839\u636equery<\/strong>\u53bb\u5339\u914ddoc\u7684\u6d41\u7a0b\u662f\uff1a<\/p>\n\n\n\n
                              • \u540c\u65f6\u53bb\u67e5\u8be2\u5185\u5b58\u548c\u786c\u76d8\u7684Segement\u6587\u4ef6<\/li><\/ul>\n\n\n\n
                                \"\"<\/figure><\/div>\n\n\n\n
                                \u4ece\u4e0a\u9762\u6240\u8bb2\u7684\u5199\u5165\u6d41\u7a0b\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u77e5\u9053\uff1aGet\uff08\u901a\u8fc7ID\u53bb\u67e5Doc\u662f\u5b9e\u65f6\u7684\uff09\uff0cQuery\uff08\u901a\u8fc7query\u53bb\u5339\u914dDoc\u662f\u8fd1\u5b9e\u65f6\u7684\uff09<\/p>\n\n\n\n
                                • \u56e0\u4e3asegement\u6587\u4ef6\u662f\u6bcf\u9694\u4e00\u79d2\u624d\u751f\u6210\u4e00\u6b21\u7684<\/li><\/ul>\n\n\n\n
                                  Elasticsearch\u67e5\u8be2\u53c8\u5206\u53ef\u4ee5\u4e3a\u4e09\u4e2a\u9636\u6bb5\uff1a<\/p>\n\n\n\n
                                  • QUERY_AND_FETCH\uff08\u67e5\u8be2\u5b8c\u5c31\u8fd4\u56de\u6574\u4e2aDoc\u5185\u5bb9\uff09<\/li>
                                  • QUERY_THEN_FETCH\uff08\u5148\u67e5\u8be2\u51fa\u5bf9\u5e94\u7684Doc id \uff0c\u7136\u540e\u518d\u6839\u636eDoc id \u5339\u914d\u53bb\u5bf9\u5e94\u7684\u6587\u6863\uff09<\/li>
                                  • DFS_QUERY_THEN_FETCH\uff08\u5148\u7b97\u5206\uff0c\u518d\u67e5\u8be2\uff09<\/li>
                                  • \u300c\u8fd9\u91cc\u7684\u5206\u6307\u7684\u662f \u8bcd\u9891\u7387\u548c\u6587\u6863\u7684\u9891\u7387<\/strong>\uff08Term Frequency\u3001Document Frequency\uff09\u4f17\u6240\u5468\u77e5\uff0c\u51fa\u73b0\u9891\u7387\u8d8a\u9ad8\uff0c\u76f8\u5173\u6027\u5c31\u66f4\u5f3a\u300d<\/li><\/ul>\n\n\n\n
                                    \"\"<\/figure><\/div>\n\n\n\n
                                    \u4e00\u822c\u6211\u4eec\u7528\u5f97\u6700\u591a\u7684\u5c31\u662fQUERY_THEN_FETCH<\/strong>\uff0c\u7b2c\u4e00\u79cd\u67e5\u8be2\u5b8c\u5c31\u8fd4\u56de\u6574\u4e2aDoc\u5185\u5bb9\uff08QUERY_AND_FETCH\uff09\u53ea\u9002\u5408\u4e8e\u53ea\u9700\u8981\u67e5\u4e00\u4e2a\u5206\u7247\u7684\u8bf7\u6c42\u3002<\/p>\n\n\n\n
                                    QUERY_THEN_FETCH<\/strong>\u603b\u4f53\u7684\u6d41\u7a0b\u6d41\u7a0b\u5927\u6982\u662f\uff1a<\/p>\n\n\n\n
                                    • \u5ba2\u6237\u7aef\u8bf7\u6c42\u53d1\u9001\u5230\u96c6\u7fa4\u7684\u67d0\u4e2a\u8282\u70b9\u4e0a\u3002\u96c6\u7fa4\u4e0a\u7684\u6bcf\u4e2a\u8282\u70b9\u90fd\u662fcoordinate node\uff08\u534f\u8c03\u8282\u70b9\uff09<\/li>
                                    • \u7136\u540e\u534f\u8c03\u8282\u70b9\u5c06\u641c\u7d22\u7684\u8bf7\u6c42\u8f6c\u53d1\u5230\u6240\u6709\u5206\u7247\u4e0a<\/strong>\uff08\u4e3b\u5206\u7247\u548c\u526f\u672c\u5206\u7247\u90fd\u884c\uff09<\/li>
                                    • \u6bcf\u4e2a\u5206\u7247\u5c06\u81ea\u5df1\u641c\u7d22\u51fa\u7684\u7ed3\u679c(doc id)<\/code>\u8fd4\u56de\u7ed9\u534f\u8c03\u8282\u70b9\uff0c\u7531\u534f\u8c03\u8282\u70b9\u8fdb\u884c\u6570\u636e\u7684\u5408\u5e76\u3001\u6392\u5e8f\u3001\u5206\u9875\u7b49\u64cd\u4f5c\uff0c\u4ea7\u51fa\u6700\u7ec8\u7ed3\u679c\u3002<\/li>
                                    • \u63a5\u7740\u7531\u534f\u8c03\u8282\u70b9\u6839\u636e doc id<\/code> \u53bb\u5404\u4e2a\u8282\u70b9\u4e0a\u62c9\u53d6\u5b9e\u9645<\/strong>\u7684 document<\/code> \u6570\u636e\uff0c\u6700\u7ec8\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/li><\/ul>\n\n\n\n
                                      Query Phase\u9636\u6bb5<\/strong>\u65f6\u8282\u70b9\u505a\u7684\u4e8b\uff1a<\/p>\n\n\n\n
                                      • \u534f\u8c03\u8282\u70b9\u5411\u76ee\u6807\u5206\u7247\u53d1\u9001\u67e5\u8be2\u7684\u547d\u4ee4\uff08\u8f6c\u53d1\u8bf7\u6c42\u5230\u4e3b\u5206\u7247\u6216\u8005\u526f\u672c\u5206\u7247\u4e0a\uff09<\/li>
                                      • \u6570\u636e\u8282\u70b9\uff08\u5728\u6bcf\u4e2a\u5206\u7247\u5185\u505a\u8fc7\u6ee4\u3001\u6392\u5e8f\u7b49\u7b49\u64cd\u4f5c\uff09\uff0c\u8fd4\u56dedoc id<\/code>\u7ed9\u534f\u8c03\u8282\u70b9<\/li><\/ul>\n\n\n\n
                                        Fetch Phase\u9636\u6bb5<\/strong>\u65f6\u8282\u70b9\u505a\u7684\u662f\uff1a<\/p>\n\n\n\n
                                        • \u534f\u8c03\u8282\u70b9\u5f97\u5230\u6570\u636e\u8282\u70b9\u8fd4\u56de\u7684doc id<\/code>\uff0c\u5bf9\u8fd9\u4e9bdoc id<\/code>\u505a\u805a\u5408\uff0c\u7136\u540e\u5c06\u76ee\u6807\u6570\u636e\u5206\u7247\u53d1\u9001\u6293\u53d6\u547d\u4ee4\uff08\u5e0c\u671b\u62ff\u5230\u6574\u4e2aDoc\u8bb0\u5f55\uff09<\/li>
                                        • \u6570\u636e\u8282\u70b9\u6309\u534f\u8c03\u8282\u70b9\u53d1\u9001\u7684doc id<\/code>\uff0c\u62c9\u53d6\u5b9e\u9645\u9700\u8981\u7684\u6570\u636e\u8fd4\u56de\u7ed9\u534f\u8c03\u8282\u70b9<\/li><\/ul>\n\n\n\n
                                          \u4e3b\u6d41\u7a0b\u6211\u76f8\u4fe1\u5927\u5bb6\u4e5f\u4e0d\u4f1a\u592a\u96be\u7406\u89e3\uff0c\u8bf4\u767d\u4e86\u5c31\u662f\uff1a\u7531\u4e8eElasticsearch\u662f\u5206\u5e03\u5f0f\u7684\uff0c\u6240\u4ee5\u9700\u8981\u4ece\u5404\u4e2a\u8282\u70b9\u90fd\u62c9\u53d6\u5bf9\u5e94\u7684\u6570\u636e\uff0c\u7136\u540e\u6700\u7ec8\u7edf\u4e00\u5408\u6210\u7ed9\u5ba2\u6237\u7aef<\/strong><\/p>\n\n\n\n
                                          \u53ea\u662fElasticsearch\u628a\u8fd9\u4e9b\u6d3b\u90fd\u5e72\u4e86\uff0c\u6211\u4eec\u5728\u4f7f\u7528\u7684\u65f6\u5019\u65e0\u611f\u77e5\u800c\u5df2\u3002<\/p>\n\n\n\n
                                          \"\"<\/figure><\/div>\n\n\n\n
                                          \u6700\u540e<\/h5>\n\n\n\n
                                          \n\n\n\n
                                          \u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u5bf9Elasticsearch\u7b80\u5355\u5165\u4e86\u4e2a\u95e8\uff0c\u5b9e\u9645\u4f7f\u7528\u80af\u5b9a\u8fd8\u4f1a\u9047\u5230\u5f88\u591a\u5751\uff0c\u4f46\u6211\u76ee\u524d\u5c31\u5230\u8fd9\u91cc\u5c31\u7ed3\u675f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                                          \u524d\u8a00 \u4e0d\u77e5\u9053\u5927\u5bb6\u7684\u516c\u53f8\u7528Elasticsearch\u591a\u4e0d\u591a\uff0c\u53cd\u6b63\u6211\u516c\u53f8\u7684\u662f\u6709\u5728\u7528\u7684\u3002\u5e73\u65f6\u542c\u540c\u4e8b\u4eec\u804a\u5929\u80af\u5b9a\u907f\u514d\u4e0d\u4e86 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5464"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5464"}],"version-history":[{"count":12,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5464\/revisions"}],"predecessor-version":[{"id":5508,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5464\/revisions\/5508"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}