Re: [技術]別老扯什麼Hadoop了,你的數據根本不夠大
※ 引述《Lordaeron (Terry)》之銘言:
: 譯文: http://geek.csdn.net//news/detail/2780
: 原文: http://www.chrisstucchio.com/blog/2013/hadoop_hatred.html
: 名言:
: MapReduce explained in 41 words:
: Goal: count the number of books in the library.
: Map: You count up shelf #1, I count up shelf #2.
: (The more people we get, the faster this part goes. )
: Reduce: We all get together and add up our individual counts.
: HADOOP 多神奇呢.......
控制map-reduce是一回事
搞懂整個map-reduce每個步驟怎進行是一回事
能夠控制map-reduce每個環節是另一回事
用map-reduce控制hbase又是另一回事
使用hdfs是一回事
了解hdfs架構又是一回事
搞懂hdfs跟map-reduce之間的關連又是一回事
搞懂hdfs跟hbase name server之間的關連又是一回事
設定job tracker是一回事
控制scheduler又是另一回事
讓map-reduce 有效率的執行也是一回事
mapreduce跟mapred也是不同一件事啊 (爆
大象書其實也沒有寫太多細節的事,
能幾個字就說完hadoop, 也真的頗神奇 (笑
不過他真的很難用 (無奈
--
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本人只是打雜的 談不上專業
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