Hadoop 常用信息

查看block数量,文件数量等集群信息

hadoop fsck /

block 元数据大小计算

Object size estimate (bytes) typical size (bytes) current typical size (bytes)
File 112 + fileName.length 125 250
Directory 144 + fileName.length 155 290
Block 112 + 24 * replication 184 368

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