Hadoop - block,replication,architecture

Hadoop - block,replication,architecture 1.Block hadoop2.0以上,一個block塊的大小爲128m,hadoop2.0以下爲64m block塊爲128m,並不意味着存儲就是128m,打個比方,一瓶水500ml,用150ml的杯子來分,那麼至少需要4個杯子,3*150ml=450ml,剩下的一個杯子只有50ml了,這個150ml就相當於一個bl

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