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hadoop reduce task 是如何对 数据分组的 ??假设 map 输出了 n 个组,也就是 n 个不同的 key,那么这 n 个组如何分到多个 reduce task 中的呢??搜索能力有限,求救。。。先感谢各位大大了
ling123
·
Apr 14, 2016
· 2606 views
This topic created in 3792 days ago, the information mentioned may be changed or developed.
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