Unable to find java executable. Is it in your PATH?

flume报错

[root@localhost bin]# ./flume-ng version
Error: Unable to find java executable. Is it in your PATH?

需要配置lunix上jdk环境变量

[root@localhost bin]# vi /etc/profile
在文件最后添加：
JAVA_HOME=/usr/local/jdk
PATH=$PATH:$JAVA_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
 
export JAVA_HOME
export PATH
export CLASSPATH
[root@localhost bin]# source /etc/profile
使文件修改立即生效
[root@localhost bin]# java -version
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)
验证修改生效