hadoop伪分布式-all-in-one安装
#查看hadoop 版本
[root@hadoop-allinone-200-123 bin]# pwd
/wdcloud/app/hadoop-2.7.3/bin [root@hadoop-allinone-200-123 bin]# ./hadoop version
Hadoop 2.7.3
Subversion https://git-wip-us.apache.org/repos/asf/hadoop.git -r baa91f7c6bc9cb92be5982de4719c1c8af91ccff
Compiled by root on 2016-08-18T01:41Z
Compiled with protoc 2.5.0
From source with checksum 2e4ce5f957ea4db193bce3734ff29ff4
This command was run using /wdcloud/app/hadoop-2.7.3/share/hadoop/common/hadoop-common-2.7.3.jar