CDH4在不同的目录中查找java

我在安装了Cloudera CDH 4.3的机器上运行了

hadoop

命令，并遇到以下错误：

/workplace/cloudera/parcels/CDH-4.3.1-1.cdh4.3.1.p0.110/bin/../lib/hadoop/bin/hadoop: line 139: /opt/java/latest/bin/java: No such file or directory
/workplace/cloudera/parcels/CDH-4.3.1-1.cdh4.3.1.p0.110/bin/../lib/hadoop/bin/hadoop: line 139: exec: /opt/java/latest/bin/java: cannot execute: No such file or directory

然后我检查了那台机器上的java，发现它安装在不同的位置：

whereis java
java: /usr/bin/java /etc/java /usr/lib/java /usr/share/java /usr/share/man/man1/java.1.gz

---

如何让CDH4从

/usr/bin/java

中提取java？

创建一个符号链接/opt/java/latest/bin/java->/usr/bin/java？

您如何设置

java\u HOME

？