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Cloudera: No Java JDK is detected on the host.

Getting this?  

"No Java JDK is detected on the host."  

One reason for this is a missing symlink /usr/java/latest :  

[root@cm-awn01 java]# ls -l /usr/java
total 0
drwxr-xr-x 7 root root 245 May 11 00:39 jdk1.8.0_181-cloudera  
lrwxrwxrwx 1 root root  21 May 27 13:27 latest -> jdk1.8.0_181-cloudera  
[root@cm-awn01 java]#  



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