{"id":50162,"date":"2023-11-08T18:44:49","date_gmt":"2023-03-02T17:20:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%a0%e6%98%af%e5%90%a6%e5%af%b9cassandra-day%e4%b9%8b%e8%b7%af%e6%9c%89%e6%ad%a3%e7%a1%ae%e7%9a%84%e7%90%86%e8%a7%a3%ef%bc%9f\/"},"modified":"2024-05-04T08:08:40","modified_gmt":"2024-05-04T00:08:40","slug":"%e4%bd%a0%e6%98%af%e5%90%a6%e5%af%b9cassandra-day%e4%b9%8b%e8%b7%af%e6%9c%89%e6%ad%a3%e7%a1%ae%e7%9a%84%e7%90%86%e8%a7%a3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%a0%e6%98%af%e5%90%a6%e5%af%b9cassandra-day%e4%b9%8b%e8%b7%af%e6%9c%89%e6%ad%a3%e7%a1%ae%e7%9a%84%e7%90%86%e8%a7%a3%ef%bc%9f\/","title":{"rendered":"\u4f60\u662f\u5426\u5bf9\u201cCassandra Day\u4e4b\u8def\u201d\u6709\u6b63\u786e\u7684\u7406\u89e3\uff1f"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<h2>\u5173\u4e8eCassandra Day\u7684\u4e8b\u60c5<\/h2>\n<p>\u4eca\u5e74\u76846\u67081\u65e5\uff0cCassandra Day\u5c06\u5728\u65e5\u672c\u4e3e\u529e\u3002\u53bb\u5e74\uff0cCassandra Day\u5df2\u7ecf\u5728\u67cf\u6797\u3001\u4f26\u6566\u3001\u963f\u59c6\u65af\u7279\u4e39\u3001\u6cb3\u5185\u3001\u96c5\u52a0\u8fbe\u3001\u4f11\u65af\u6566\u3001\u5723\u514b\u62c9\u62c9\u3001\u897f\u96c5\u56fe\u548c\u65b0\u52a0\u5761\u4e3e\u529e\u8fc7\u3002<\/p>\n<p>\u4e3a\u4e86\u672c\u6b21\u5728\u4e1c\u4eac\u7684\u4e3e\u529e\uff0c\u6211\u4eec\u5c06\u53d1\u5e03\u6709\u5173Apache Cassandra\u7684\u6587\u7ae0\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d8fc8913a08637a6da34f\/4-0.png\" alt=\"image.png\" \/><\/div>\n<h2>\u5173\u4e8eApache Cassandra<\/h2>\n<p>\u5982\u679c\u8981\u7528\u4e00\u53e5\u8bdd\u6765\u6982\u62ec\uff0cApache Cassandra\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002<\/p>\n<p>\u4e0e\u5176\u4ed6\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7c7b\u4f3c\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u901a\u7528\u670d\u52a1\u5668\u6765\u6784\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\uff08\u4e5f\u53ef\u4ee5\u4ec5\u4f7f\u7528\u4e00\u4e2a\u670d\u52a1\u5668\u6765\u6ee1\u8db3\u5f00\u53d1\u7b49\u76ee\u7684\uff09\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u7565\u53bb\u8be6\u7ec6\u7684\u89e3\u91ca\uff0c\u800c\u5c06\u4ecb\u7ecd\u7684\u4efb\u52a1\u7559\u7ed9\u5bf9\u6b64\u611f\u5174\u8da3\u7684\u4eba\uff0c\u8fd9\u90e8\u5206\u53ef\u4ee5\u901a\u8fc7\u5b98\u65b9\u7f51\u7ad9\u6216\u7ef4\u57fa\u767e\u79d1\u6765\u4e86\u89e3\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5173\u4e8e\u6570\u636e\u5e93\u7684\u5206\u7c7b<\/h2>\n<p>\u5728\u8fd9\u91cc\uff0c\u9996\u5148\u6211\u4eec\u79bb\u5f00\u7279\u5b9a\u540d\u8bcdCassandra\u3002<br \/>\n\u5bf9\u4e8e\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u5206\u7c7b\u7684\u65b9\u6cd5\uff0c\u6709\u51e0\u4e2a\u9009\u62e9\uff0c\u4f46\u6211\u4eec\u4ece\u4e2d\u9009\u53d6\u4e00\u4e2a\u8fdb\u884c\u8ba8\u8bba\u3002<\/p>\n<h1>\u5217\u6307\u5411\u6570\u636e\u5e93\u548c\u884c\u6307\u5411\u6570\u636e\u5e93<\/h1>\n<h2>\u5e38\u898b\u7684\u89c0\u9ede<\/h2>\n<p>\u4f5c\u4e3a\u6570\u636e\u5e93\u7684\u5206\u7c7b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5206\u4e3a\u5217\u5411\u6570\u636e\u5e93\u548c\u884c\u5411\u6570\u636e\u5e93\u3002<\/p>\n<p>\u5bf9\u4e8e\u4f5c\u4e3a\u5173\u7cfb\u6570\u636e\u5e93\uff08RDB\uff09\u7684\u884c\u5bfc\u5411\u6570\u636e\u5e93\uff0c\u6709\u65f6\u4f1a\u5c06\u65e0\u6570\u4e2aNoSQL\u6570\u636e\u5e93\u65e0\u5dee\u522b\u5730\u79f0\u4e4b\u4e3a\u5217\u5bfc\u5411\u6570\u636e\u5e93\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u88ab\u79f0\u4e3a\u201c\u5217\u5f0f\u6570\u636e\u5e93\u201d\u7684\u6570\u636e\u5e93\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5728\u65e5\u8bed\u7684\u7ef4\u57fa\u767e\u79d1\u4e2d\uff0c\u867d\u7136\u5bf9\u8fd9\u4e24\u8005\u7684\u5dee\u522b\u8fdb\u884c\u4e86\u6ce8\u610f\uff0c\u4f46\u662f\u4f7f\u7528\u4e86\u201c\u5217\u6307\u5411\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u201d\u5bf9\u5e94\u7684\u201c\u30ab\u30e9\u30e0\u6307\u5411\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u201d\u7684\u8868\u8fbe\u65b9\u5f0f\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u65e5\u8bed\u4e2d\uff0c\u5c06\u201c\u5217\u201d\u7684\u672c\u571f\u8bcd\u6c47\u548c\u5916\u6765\u8bcd\u201c\u30ab\u30e9\u30e0\u201d\u7684\u7247\u5047\u540d\u62fc\u5199\u8fdb\u884c\u533a\u5206\uff0c\u6211\u8ba4\u4e3a\u662f\u4e00\u79cd\u4e3b\u89c2\u4e14\u4ec5\u4ec5\u5728\u65e5\u672c\u56fd\u5185\u6210\u7acb\u7684\u4e0d\u5145\u5206\u8868\u8fbe\u3002\u6211\u8ba4\u4e3a\u8fd9\u79cd\u533a\u5206\u5e76\u4e0d\u51c6\u786e\uff0c\u56e0\u4e3a\u5b83\u5e76\u6ca1\u6709\u8868\u793a\u201c\u6570\u636e\u6a21\u578b\u201d\u800c\u662f\u8868\u793a\u4e86\u201c\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u5185\u90e8\u7684\u6570\u636e\u5b58\u50a8\u65b9\u5f0f\u201d\u3002\u8003\u8651\u5230\u8fd9\u4e00\u70b9\uff0c\u6211\u60f3\u8fdb\u884c\u6574\u7406\u3002<\/p>\n<h2>\u5217\uff08\u4e5f\u53ef\u4ee5\u79f0\u4e3a\u201c\u680f\u76ee\u201d\uff09\u6307\u5411\u6709\u4e24\u4e2a\u4e0d\u540c\u7684\u610f\u601d\u3002<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u8ba4\u4e3a\u5c06\u201c\u5217\uff08column\uff09\u5bfc\u5411\u201d\u8fd9\u4e2a\u8bcd\u666e\u904d\u5316\u6574\u7406\u4e00\u4e0b\uff0c\u53ef\u80fd\u4f1a\u5f97\u51fa\u4ee5\u4e0b\u7ed3\u8bba\u3002<\/p>\n<ul class=\"post-ul\">\u30c7\u30fc\u30bf\u306e\u7de8\u6210\u306b\u5217\u304c\u91cd\u8981\u306a\u610f\u5473\u3092\u3082\u3064<\/ul>\n<p>\u8fd9\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5206\u89e3\u4e3a\u4ee5\u4e0b\u4e24\u4e2a\u7279\u5f81\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5217\u304c\u300c\u7269\u7406\u914d\u7f6e\u300d\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5217\u5358\u4f4d\u3067\u306e\u30c7\u30fc\u30bf\u300c\u30a2\u30af\u30bb\u30b9\u300d\uff08\u30c7\u30fc\u30bf\u306e\u300c\u96c6\u7d04\u300d\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\uff09\u306b\u512a\u308c\u308b<\/ul>\n<p>\u5982\u679c\u7528\u4e00\u4e2a\u666e\u904d\u7684\u8868\u8fbe\u6765\u66ff\u4ee3\u8fd9\u53e5\u8bdd\uff0c\u53ef\u4ee5\u8bf4\uff0c\u8fd9\u9002\u7528\u4e8e\u4e0e\u201c\u5217\u201d\u76f8\u5173\u7684\u8bb8\u591a\u6570\u636e\u5e93\u7684\u8bf4\u660e\u3002\u4f46\u662f\uff0c\u5b9e\u9645\u4e0a\u5b58\u5728\u4e24\u79cd\u5b9e\u4f53\u5927\u4e0d\u76f8\u540c\u7684\u7c7b\u578b\u3002<\/p>\n<h2>\u5728\u7269\u7406\u914d\u7f6e\u65b9\u9762\u7684\u5dee\u5f02<\/h2>\n<p>\u5728\u7269\u7406\u914d\u7f6e\u65b9\u9762\uff0c\u6709\u4ee5\u4e0b\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">A\uff1a\u5404\u884c\u6bce\u306b\u7570\u306a\u308b\u30d5\u30a1\u30a4\u30eb\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">B\uff1a\u7279\u5b9a\u306e\u9805\u76ee\uff08\u5217\uff09\u306e\u5024\uff08\u3068\u305d\u306e\u4e26\u3073\u9806\uff09\u306b\u3088\u3063\u3066\u3001\u30ec\u30b3\u30fc\u30c9\uff08\u884c\uff09\u304c\u3001\u7269\u7406\u7684\u306b\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u3002<\/ul>\n<h2>\u5728\u6570\u636e\u8bbf\u95ee\u65b9\u9762\u7684\u5dee\u5f02\u3002<\/h2>\n<p>\u5728\u81ea\u8c6a\u7684\u6570\u636e\u8bbf\u95ee\u65b9\u5f0f\u4e2d\uff0c\u6709\u4ee5\u4e0b\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">A\uff1a\u7279\u5b9a\u306e\u5217\u306e\u5024\u306e\u300c\u96c6\u8a08\u300d<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">B\uff1a\u7279\u5b9a\u306e\u5217\u306e\u5024\u306b\u3088\u308b\u300c\u30ec\u30b3\u30fc\u30c9\u62bd\u51fa\u300d\u3001\u300c\u691c\u7d22\uff08\u3068\u30bd\u30fc\u30c8\uff09\u300d<\/ul>\n<p>\u5728\u6b64\uff0c\u53ef\u80fd\u4f1a\u4f7f\u60c5\u51b5\u53d8\u5f97\u590d\u6742\u5316\u7684\u662f\u4e00\u4e2a\u8bcd\uff0c\u201c\u96c6\u7d04\u201d\uff0c\u6709\u65f6\u4f1a\u88ab\u7528\u6765\u89e3\u91caB\u7684\u610f\u601d\uff08\u5728\u65e5\u8bed\u4e2d\u5e76\u4e0d\u4e0d\u81ea\u7136\uff0c\u4f46\u53ef\u80fd\u6709\u4eba\u4f1a\u5728\u542c\u5230\u201c\u96c6\u7d04\u201d\u4e00\u8bcd\u65f6\u8054\u60f3\u5230\u201c\u96c6\u8a08\u201d\u7684\u610f\u601d\u3002\u5982\u679c\u975e\u8981\u5bfb\u627e\u4e0e\u82f1\u8bed\u7684\u5bf9\u5e94\u5173\u7cfb\u7684\u8bdd\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u201c\u96c6\u8a08(aggregation)\u201d\u548c\u201c\u96c6\u7d04(consolidation)\u201d\u3002<\/p>\n<h1>\u4e13\u680f\u548c\u5bbd\u680f<\/h1>\n<p>\u8fd9\u6bb5\u8bf4\u660e\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u89e3\u5f00\u53ef\u80fd\u5f15\u8d77\u8bef\u89e3\u7684\u90e8\u5206\uff0c\u4f46\u53ef\u80fd\u5bf9\u5df2\u7ecf\u7406\u89e3\u7684\u4eba\u6765\u8bf4\u4f1a\u611f\u5230\u6709\u4e9b\u7e41\u7410\u3002\uff08\u9700\u8981\u81f3\u5c11\u4e5d\u4e5d\u5341\u4e5d\u5929\u4e5f\u8bb8\uff09<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u901a\u5e38\u7528\u53e6\u4e00\u79cd\u666e\u904d\u4f7f\u7528\u7684\u8bed\u8a00\u6765\u9610\u8ff0\uff0c\u5373\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">A = \u30ab\u30e9\u30e0\u30ca\u30fc<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">B = \u30ef\u30a4\u30c9\u30ab\u30e9\u30e0<\/ul>\n<p>\u5173\u4e8e\u6bcf\u4e2a\u95ee\u9898\uff0c\u6211\u5c06\u8bd5\u7740\u7528\u6761\u76ee\u7684\u5f62\u5f0f\u8fdb\u884c\u6574\u7406\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u89e3\u91ca\u8fc7\u7684\u5173\u4e8e\u54ea\u79cd\u8bbf\u95ee\u65b9\u5f0f\u5353\u8d8a\u7684\u8981\u7d20\u89e3\u8bfb\u4e3a\u6570\u636e\u5e93\u8bbe\u8ba1\u76ee\u7684\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<h2>\u4e13\u680f\u4f5c\u5bb6<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c6\u30a3\u30d6\uff1a\u7279\u5b9a\u306e\u5217\u306e\u5024\u306e\u300c\u96c6\u8a08\u300d<\/ul>\n<\/li>\n<\/ul>\n<p>\u300c\u5929\u6587\u5b66\u7684\uff08\u30d2\u30e5\u30fc\u30de\u30f3\u30fb\u30ea\u30fc\u30c0\u30d6\u30eb\u3067\u306a\u3044\uff09\u300d\u91cf\u306e\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u3092\u3001\u4eba\u9593\u306b\u3068\u3063\u3066\u610f\u5473\u306e\u3042\u308b\u5024\u306b\u300c\u96c6\u7d04\u300d\uff08\u548c\u30fb\u5e73\u5747\u30fb\u6700\u5927\u5024\u306a\u3069\u3044\u308f\u3086\u308b\u96c6\u7d04\u95a2\u6570\u306e\u7bc4\u7587\uff09<\/p>\n<p>\u884c\u8ffd\u52a0\u306f\u9ad8\u30b3\u30b9\u30c8\uff08\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u66f8\u304d\u8fbc\u307f\uff09<br \/>\n\u30c7\u30fc\u30bf\u306f\u8ad6\u7406\u7684\u306b\u300c\u904e\u53bb\u300d\u30c7\u30fc\u30bf<br \/>\n\u4ee3\u8868\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08\u30b9\u30c8\u30ec\u30fc\u30b8\uff09\uff1aGoogle Bigquery\u3001Amazon Athena\u3001Cloudera Impala (Apache Avro, Apache Parquet, Apache ORC)<\/p>\n<h2>\u5e7f\u64ad\u7535\u89c6\u8282\u76ee\u680f\u76ee<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c6\u30a3\u30d6\uff1a\u7279\u5b9a\u306e\u884c\u306e\u5024\u306b\u3088\u308b\u300c\u691c\u7d22\uff08\u3068\u30bd\u30fc\u30c8\uff09\u300d<\/ul>\n<\/li>\n<\/ul>\n<p>\u300c\u7121\u9650\u306b\u30b9\u30b1\u30fc\u30eb\uff08\u6210\u9577\uff09\u300d\u3059\u308b\u30c7\u30fc\u30bf\u306e\u5206\u6563\u914d\u7f6e\uff1d\u63a2\u7d22\u7d4c\u8def\u6700\u9069\u5316<\/p>\n<p>\u884c\u8ffd\u52a0\u306b\u30b3\u30b9\u30c8\u6700\u9069\u5316\uff08\u30bd\u30fc\u30c8\u9806\u306b\u8ffd\u52a0\u66f8\u304d\u8fbc\u307f\uff09<br \/>\n\u300c\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u300d\u30c7\u30fc\u30bf\u306e\u6271\u3044\u306b\u512a\u308c\u308b<br 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