極ãã¦å¤§è¦æ¨¡ãªãã¼ã¿ã並ååæ£å¦çããããã«ãGoogleãéçºãããã¬ã¼ã ã¯ã¼ã¯ã ããå¤ã¨ãªã¹ãã®key-valueãã¢ããã¼ã¿åä½ã¨ãã Mapãã§ã¼ãº 1ã¤ã®key-valueãã¢ãã1ã¤ä»¥ä¸ã®key-valueãã¢ãçæãã Reduceãã§ã¼ãº keyãåãè¤æ°ã®key-valueãã¢ãã1ã¤ãªããå°æ°ã®key-valueãã¢ãçæãã ã¨ãã2ã¤ã®ãã§ã¼ãºããããã«ã¤ãã¦é©å½ãªããã°ã©ã ãæ¸ãã¨ãMapReduceã®ã·ã¹ãã ãèªåçã«ä¸ãããããã¹ãä¸ã§åãã§ã¼ãºã®æä½ãåæ£å¦çããã ãªãªã¸ãã«ã¯éå ¬éã ãããã®ã·ã¹ãã ã«é¢ããè«æãå ¬éããã¦ãã (http://labs.google.com/papers/mapreduce.html)ããããåºã«ãããªã¼ãã³ã½ã¼ã¹å®è£ ã¨ãã¦Hadoop MapReduceãããã ãã®ã¿ã°ã®è§£èª¬ã«ã¤ãã¦ãã®è§£èª¬æã¯ããã§ã«çµäºãããµã¼
{{#tags}}- {{label}}
{{/tags}}