. , java. jre, jdk. JAVA_HOME, , sbt clean .
[root @spark-sql-perf] # update-alternatives --config java
2 , "java".
* + 1 java-1.8.0-openjdk.ppc64le (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-2.b15.el7_3.ppc64le/jre/bin/java) 2 java-1.7.0-openjdk.ppc64le (/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.121-2.6.8.0.el7_3.ppc64le/jre/bin/java)
, [+], : q
2 , "java".
* + 1 java-1.8.0-openjdk.ppc64le (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-2.b15.el7_3.ppc64le/jre/bin/java) 2 java-1.7.0-openjdk.ppc64le (/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.121-2.6.8.0.el7_3.ppc64le/jre/bin/java)
, [+], : ^ C
[root @spark-sql-perf] # export JAVA_HOME =/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-2.b15.el7_3.ppc64le/
[root @ spark-sql-perf] # export PATH = $ JAVA_HOME / bin: $ PATH
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