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Contents

1 hadoop fs
2 hadoop dfsadmin
3 谿瑚襭


1 hadoop fs #

stdinput (pipe; |) 襦 hdfs ロ蠍


cat test.txt | hadoop fs -put - /tmp

2 hadoop dfsadmin #

螳 碁れ 螻 讌 危エ覲伎.
hadoop dfsadmin -report

huser@nameNode:~$ hadoop dfsadmin -report
Warning: $HADOOP_HOME is deprecated.

Configured Capacity: 80319594496 (74.8 GB)
Present Capacity: 63944634368 (59.55 GB)
DFS Remaining: 63753732096 (59.38 GB)
DFS Used: 190902272 (182.06 MB)
DFS Used%: 0.3%
Under replicated blocks: 40
Blocks with corrupt replicas: 0
Missing blocks: 0

-------------------------------------------------
Datanodes available: 4 (4 total, 0 dead)

Name: 192.168.136.5:50010
Decommission Status : Normal
Configured Capacity: 20079898624 (18.7 GB)
DFS Used: 47538176 (45.34 MB)
Non DFS Used: 4093796352 (3.81 GB)
DFS Remaining: 15938564096(14.84 GB)
DFS Used%: 0.24%
DFS Remaining%: 79.38%
Last contact: Wed Nov 28 09:01:22 KST 2012


Name: 192.168.136.4:50010
Decommission Status : Normal
Configured Capacity: 20079898624 (18.7 GB)
DFS Used: 47890432 (45.67 MB)
Non DFS Used: 4093718528 (3.81 GB)
DFS Remaining: 15938289664(14.84 GB)
DFS Used%: 0.24%
DFS Remaining%: 79.37%
Last contact: Wed Nov 28 09:01:21 KST 2012


Name: 192.168.136.6:50010
Decommission Status : Normal
Configured Capacity: 20079898624 (18.7 GB)
DFS Used: 47534080 (45.33 MB)
Non DFS Used: 4093710336 (3.81 GB)
DFS Remaining: 15938654208(14.84 GB)
DFS Used%: 0.24%
DFS Remaining%: 79.38%
Last contact: Wed Nov 28 09:01:21 KST 2012


Name: 192.168.136.7:50010
Decommission Status : Normal
Configured Capacity: 20079898624 (18.7 GB)
DFS Used: 47939584 (45.72 MB)
Non DFS Used: 4093734912 (3.81 GB)
DFS Remaining: 15938224128(14.84 GB)
DFS Used%: 0.24%
DFS Remaining%: 79.37%
Last contact: Wed Nov 28 09:01:22 KST 2012


huser@nameNode:~$

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