我的理解是,Hadoop需要一大笔档案,将其保存在“发射锁”的空白处。 这些数据区块是否储存在T-file中? 数据栏与T-file 1-1之间的关系吗?
https://web.archive.org/web/20120513124017/http://hadoop.apache.org/common/docs/ 当前/hdfs_ Design.html” rel=“nofollow noreferer”HDFS 储存大量文档,作为一系列数据区块(如64/128/256/512 MB)。 你们有1个GB档案,256MB的块块面积——科索沃警察部队将代表这一档案4个区块。 姓名节点将跟踪这些区块的哪些数据点有(或复制)。
T-Files 是一个档案格式,包含钥匙/Value pairs。 Hadoop将储存一台T-File,使用科索沃警察部队的一个或多个数据区块(视T-File的大小和固定的块体大小——系统缺省或具体存档)。
简言之,你可以储存在《人类发展报告》中的任何档案格式,仅将其细分为固定的区块,在整个组群中分发和复制。
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