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CCA-500 · Question #17

Which command does Hadoop offer to discover missing or corrupt HDFS data?

The correct answer is B. Hdfs fsck. https://twiki.grid.iu.edu/bin/view/Storage/HadoopRecovery

Troubleshooting

Question

Which command does Hadoop offer to discover missing or corrupt HDFS data?

Options

AHdfs fs -du
BHdfs fsck
CDskchk
DThe map-only checksum
EHadoop does not provide any tools to discover missing or corrupt data; there is not need because

How the community answered

(35 responses)

A
6% (2)
B
74% (26)
C
3% (1)
D
14% (5)
E
3% (1)

Explanation

https://twiki.grid.iu.edu/bin/view/Storage/HadoopRecovery

Topics

#hdfs fsck#data integrity#corrupt blocks#HDFS tools

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