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specify spark version (#1224)

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Nan Zhu
2016-05-24 18:19:32 -04:00
parent c85b9012c6
commit c6631ad2ed
3 changed files with 16 additions and 4 deletions
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doc/jvm/index.md
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@@ -11,9 +11,9 @@ Currently, XGBoost4J only support installation from source. Building XGBoost4J u
Before you install XGBoost4J, you need to define environment variable `JAVA_HOME` as your JDK directory to ensure that your compiler can find `jni.h` correctly, since XGBoost4J relies on JNI to implement the interaction between the JVM and native libraries.
After your `JAVA_HOME` is defined correctly, it is as simple as run `mvn package` under jvm-packages directory to install XGBoost4J.
After your `JAVA_HOME` is defined correctly, it is as simple as run `mvn package` under jvm-packages directory to install XGBoost4J. You can also skip the tests by running `mvn -DskipTests=true package`, if you are sure about the correctness of your local setup.
NOTE: XGBoost4J requires to run with Spark 1.6 or newer
XGBoost4J-Spark which integrates XGBoost with Spark requires to run with Spark 1.6 or newer (the default version is 1.6.1). You can build XGBoost4J-Spark as a component of XGBoost4J by running `mvn package` or specifying the spark version by `mvn -Dspark.version=1.6.0 package`.
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