Which command does Hadoop offer to discover missing or corrupt HDFS data?
A.
Hdfs fs –du
B.
Hdfs fsck
C.
Dskchk
D.
The map-only checksum
E.
Hadoop does not provide any tools to discover missing or corrupt data; there is not need
because three replicas are kept for each data block
Explanation:
https://twiki.grid.iu.edu/bin/view/Storage/HadoopRecovery
B
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B
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B is correct
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B
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B
0
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B
0
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B
0
0
I choose B
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