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CentOS에 Spark를 설치하려고합니다. sbt/sbt assembly 명령을 사용하여 스파크를 작성하는 동안 다음과 같은 오류가 발생합니다.CentOS에서 Spark를 설치할 때 Java compliation 오류가 발생합니다.
[warn] /root/spark-0.8.0-incubating/core/src/main/scala/org/apache/spark/SparkHadoopWriter.scala:129: method cleanupJob in class OutputCommitter is deprecated: see corresponding Javadoc for more information.
[warn] getOutputCommitter().cleanupJob(getJobContext())
[warn] ^
[warn] /root/spark-0.8.0-incubating/core/src/main/scala/org/apache/spark/rdd/PairRDDFunctions.scala:592: method cleanupJob in class OutputCommitter is deprecated: see corresponding Javadoc for more information.
[warn] jobCommitter.cleanupJob(jobTaskContext)
[warn] ^
[warn] two warnings found
[error] ----------
[error] 1. WARNING in /root/spark-0.8.0-incubating/core/src/main/java/org/apache/spark/network/netty/FileClient.java (at line 22)
[error] import io.netty.channel.ChannelFuture;
[error] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[error] The import io.netty.channel.ChannelFuture is never used
[error] ----------
[error] 2. WARNING in /root/spark-0.8.0-incubating/core/src/main/java/org/apache/spark/network/netty/FileClient.java (at line 23)
[error] import io.netty.channel.ChannelFutureListener;
[error] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[error] The import io.netty.channel.ChannelFutureListener is never used
[error] ----------
[error] ----------
[error] 3. WARNING in /root/spark-0.8.0-incubating/core/src/main/java/org/apache/spark/network/netty/FileServer.java (at line 23)
[error] import io.netty.channel.Channel;
[error] ^^^^^^^^^^^^^^^^^^^^^^^^
[error] The import io.netty.channel.Channel is never used
[error] ----------
[error] ----------
[error] 4. WARNING in /root/spark-0.8.0-incubating/core/src/main/scala/org/apache/spark/api/java/JavaSparkContextVarargsWorkaround.java (at line 20)
[error] import java.util.Arrays;
[error] ^^^^^^^^^^^^^^^^
[error] The import java.util.Arrays is never used
[error] ----------
[error] ----------
[error] 5. ERROR in /root/spark-0.8.0-incubating/core/src/main/scala/org/apache/spark/api/java/function/DoubleFlatMapFunction.java (at line 36)
[error] public final Iterable<Double> apply(T t) { return call(t); }
[error] ^^^^^^^^^^
[error] The method apply(T) of type DoubleFlatMapFunction<T> must override a superclass method
[error] ----------
[error] 5 problems (1 error, 4 warnings)
[error] (core/compile:compile) javac returned nonzero exit code
[error] Total time: 431 s, completed Oct 24, 2013 7:42:21 AM
내 컴퓨터에 설치된 Java 버전은 1.7.0_45입니다.
이전에 동일한 오류 집합을 준 jdk 1.6.0_35를 사용했습니다. 나는 또한 다른 유형의 오류를 준 자바 1.4를 시도했다. 어떤 Java 버전을 사용해야합니까? 아니면 다른 문제입니까?
이 질문은 또한 ([스파크 사용자 메일 링리스트에 대한 상호 등록한이었다 https://groups.google.com/d/msg/spark-users/ ti5UF15YBq4/du_Wzhr3uCEJ) –