小编bau*_*auz的帖子

我为以下数据结构创建了MapReduce作业:

{ "_id" : 1), "docid" : 119428, "term" : 5068, "score" : 0.198 }
{ "_id" : 2), "docid" : 154690, "term" : 5068, "score" : 0.21 }
{ "_id" : 3), "docid" : 156278, "term" : 5068, "score" : 0.128 }

{ "_id" : 4), "docid" : 700, "term" : "fire", "score" : 0.058 }
{ "_id" : 5), "docid" : 857, "term" : "fire", "score" : 0.133 }
{ "_id" : 6), "docid" : 900, "term" : …