(HBase) Error: JAVA_HOME is not set and Java could not be found
Hbase tries to read JAVA_HOME directory set on hbase-env.sh file.
In hbase-env.sh file
export JAVA_HOME=/usr/java/jdk1.6.0/ is set and commented.Default JAVA_HOME set for hbase.
If you set java home in different directory please edit the line and comment out it.
It will solve your problem.
Please refer to below:
"Java needs to be installed and available. If you get an error indicating that Java is not installed, but it is on your system, perhaps in a non-standard location, edit the conf/hbase-env.sh file and modify the JAVA_HOME setting to point to the directory that contains bin/java your system."
The link is http://hbase.apache.org/book/quickstart.html