linux+no such file or directory

hadoop version
/root/hadoop/bin/hadoop: line 169: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.161-3.b14.el6_9.i386/bin/java: No such file or directory

/root/hadoop/bin/hadoop: line 169: exec: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.161-3.b14.el6_9.i386/bin/java: cannot execute: No such file or directory

这是由于yum安装java没安装完全所致。

yum search java-1.7

看到了java-1.7.0-openjdk-devel.x86_64这个吗，当然你可以serach的是java-1.8，无所谓，你开心就好，再看后面介绍：OpenJDK Development Environment，没错，我们接下来装的就是它

yum -y install java-1.7.0-openjdk-devel.x86_64

安装之后在输入 hadoop version

Hadoop 2.9.0
Subversion https://git-wip-us.apache.org/repos/asf/hadoop.git -r 756ebc8394e473ac25feac05fa493f6d612e6c50
Compiled by arsuresh on 2017-11-13T23:15Z
Compiled with protoc 2.5.0
From source with checksum 0a76a9a32a5257331741f8d5932f183
This command was run using /root/hadoop/share/hadoop/common/hadoop-common-2.9.0.jar

成功！