Hadoop 查看某个文件分成几个块，分别在那台机架的哪个机器上

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hadoop fsck /usr/input/a.txt -files -blocks -locations -racks

[root@node1 sbin]# hadoop fsck /usr/input/a.txt -files  -blocks -locations -racksDEPRECATED: Use of this script to execute hdfs command is deprecated.Instead use the hdfs command for it.Connecting to namenode via http://node1:50070FSCK started by root (auth:SIMPLE) from /192.168.88.128 for path /usr/input/a.txt at Mon Oct 03 05:14:10 CST 2016/usr/input/a.txt 10 bytes, 1 block(s):  OK0. BP-703567924-192.168.88.128-1455139267725:blk_1073742302_1478 len=10 repl=3 [/default-rack/192.168.88.130:50010, /default-rack/192.168.88.129:50010, /default-rack/192.168.88.131:50010]Status: HEALTHY Total size:10 B Total dirs:0 Total files:1 Total symlinks:0 Total blocks (validated):1 (avg. block size 10 B) Minimally replicated blocks:1 (100.0 %) Over-replicated blocks:0 (0.0 %) Under-replicated blocks:0 (0.0 %) Mis-replicated blocks:0 (0.0 %) Default replication factor:3 Average block replication:3.0 Corrupt blocks:0 Missing replicas:0 (0.0 %) Number of data-nodes:3 Number of racks:1FSCK ended at Mon Oct 03 05:14:10 CST 2016 in 17 millisecondsThe filesystem under path '/usr/input/a.txt' is HEALTHY

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