我是分布式计算的新手。我能够在我的本地机器上运行Spark 2.2中的类似代码而没有任何问题。现在我试图在Java中做同样的事情，并继续得到这个error。我可以创建JavaSparkContext并在我的代码中使用这个对象.Issue是我使用builder创建SparkSession的时候。 我的本地环境是：Window 7，Spark 2.2，Java 1.8
我的代码看起来像
public static void main(String[] args) {
SparkConf sparkConf = new SparkConf();
sparkConf.setAppName("Java-Spark");
sparkConf.setMaster("local");
SparkSession sc= SparkSession.builder().appName("test").master("local[*]").config("spark.driver.cores", 1).getOrCreate();
/* this commented code works fine.
JavaSparkContext context = new JavaSparkContext(sparkConf);
JavaRDD<Integer> numbersRDD = context.parallelize(Arrays.asList(1,2,3));
JavaRDD<Integer> squaresRDD = numbersRDD.map( n -> n*n );
System.out.println("1 :");
System.out.println(squaresRDD.collect().toString());
JavaRDD<Integer> evenRDD = squaresRDD.filter( n -> n%2==0 );
System.out.println("2 :");
System.out.println(evenRDD.collect().toString());
JavaRDD<Integer> multipliedRDD = numbersRDD.flatMap( n->Arrays.asList(n,n*2,n*3).iterator());
System.out.println("3 :");
System.out.println(multipliedRDD.collect().toString());
context.close();
*/
sc.close();
}
我正在使用Maven来管理依赖项。 pom.xml看起来像
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ICC_POC</groupId>
<artifactId>spark</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spark</name>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>com.bazaarvoice.jolt</groupId>
<artifactId>jolt-complete</artifactId>
<version>0.1.0</version>
</dependency>
<dependency>
<groupId>com.bazaarvoice.jolt</groupId>
<artifactId>jolt-core</artifactId>
<version>0.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-launcher_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-network-common_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-network-shuffle_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-unsafe_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-tags_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-catalyst_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sketch_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-asm5-shaded</artifactId>
<version>4.5</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
</plugin>
</plugins>
</build>
</project>
我正在努力解决过去2天的这个错误，无法弄清楚我在这里缺少什么。需要另一双眼睛才能找到问题。谢谢
编辑：为mvn依赖项添加输出：树
ICC_POC:spark:jar:0.0.1-SNAPSHOT
+- org.apache.spark:spark-core_2.11:jar:2.2.0:compile
| +- org.apache.avro:avro:jar:1.7.7:compile
| | +- org.codehaus.jackson:jackson-core-asl:jar:1.9.13:compile
| | +- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.13:compile
| | +- com.thoughtworks.paranamer:paranamer:jar:2.3:compile
| | \- org.apache.commons:commons-compress:jar:1.4.1:compile
| | \- org.tukaani:xz:jar:1.0:compile
| +- org.apache.avro:avro-mapred:jar:hadoop2:1.7.7:compile
| | +- org.apache.avro:avro-ipc:jar:1.7.7:compile
| | \- org.apache.avro:avro-ipc:jar:tests:1.7.7:compile
| +- com.twitter:chill_2.11:jar:0.8.0:compile
| | \- com.esotericsoftware:kryo-shaded:jar:3.0.3:compile
| | +- com.esotericsoftware:minlog:jar:1.3.0:compile
| | \- org.objenesis:objenesis:jar:2.1:compile
| +- com.twitter:chill-java:jar:0.8.0:compile
| +- org.apache.hadoop:hadoop-client:jar:2.6.5:compile
| | +- org.apache.hadoop:hadoop-common:jar:2.6.5:compile
| | | +- commons-cli:commons-cli:jar:1.2:compile
| | | +- xmlenc:xmlenc:jar:0.52:compile
| | | +- commons-httpclient:commons-httpclient:jar:3.1:compile
| | | +- commons-io:commons-io:jar:2.4:compile
| | | +- commons-collections:commons-collections:jar:3.2.2:compile
| | | +- commons-lang:commons-lang:jar:2.6:compile
| | | +- commons-configuration:commons-configuration:jar:1.6:compile
| | | | +- commons-digester:commons-digester:jar:1.8:compile
| | | | | \- commons-beanutils:commons-beanutils:jar:1.7.0:compile
| | | | \- commons-beanutils:commons-beanutils-core:jar:1.8.0:compile
| | | +- com.google.protobuf:protobuf-java:jar:2.5.0:compile
| | | +- com.google.code.gson:gson:jar:2.2.4:compile
| | | +- org.apache.hadoop:hadoop-auth:jar:2.6.5:compile
| | | | \- org.apache.directory.server:apacheds-kerberos-codec:jar:2.0.0-M15:compile
| | | | +- org.apache.directory.server:apacheds-i18n:jar:2.0.0-M15:compile
| | | | +- org.apache.directory.api:api-asn1-api:jar:1.0.0-M20:compile
| | | | \- org.apache.directory.api:api-util:jar:1.0.0-M20:compile
| | | +- org.apache.curator:curator-client:jar:2.6.0:compile
| | | \- org.htrace:htrace-core:jar:3.0.4:compile
| | +- org.apache.hadoop:hadoop-hdfs:jar:2.6.5:compile
| | | +- org.mortbay.jetty:jetty-util:jar:6.1.26:compile
| | | \- xerces:xercesImpl:jar:2.9.1:compile
| | | \- xml-apis:xml-apis:jar:1.3.04:compile
| | +- org.apache.hadoop:hadoop-mapreduce-client-app:jar:2.6.5:compile
| | | +- org.apache.hadoop:hadoop-mapreduce-client-common:jar:2.6.5:compile
| | | | +- org.apache.hadoop:hadoop-yarn-client:jar:2.6.5:compile
| | | | \- org.apache.hadoop:hadoop-yarn-server-common:jar:2.6.5:compile
| | | \- org.apache.hadoop:hadoop-mapreduce-client-shuffle:jar:2.6.5:compile
| | +- org.apache.hadoop:hadoop-yarn-api:jar:2.6.5:compile
| | +- org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.6.5:compile
| | | \- org.apache.hadoop:hadoop-yarn-common:jar:2.6.5:compile
| | | +- javax.xml.bind:jaxb-api:jar:2.2.2:compile
| | | | \- javax.xml.stream:stax-api:jar:1.0-2:compile
| | | +- org.codehaus.jackson:jackson-jaxrs:jar:1.9.13:compile
| | | \- org.codehaus.jackson:jackson-xc:jar:1.9.13:compile
| | +- org.apache.hadoop:hadoop-mapreduce-client-jobclient:jar:2.6.5:compile
| | \- org.apache.hadoop:hadoop-annotations:jar:2.6.5:compile
| +- net.java.dev.jets3t:jets3t:jar:0.9.3:compile
| | +- org.apache.httpcomponents:httpcore:jar:4.3.3:compile
| | +- org.apache.httpcomponents:httpclient:jar:4.3.6:compile
| | +- commons-codec:commons-codec:jar:1.8:compile
| | +- javax.activation:activation:jar:1.1.1:compile
| | +- mx4j:mx4j:jar:3.0.2:compile
| | +- javax.mail:mail:jar:1.4.7:compile
| | +- org.bouncycastle:bcprov-jdk15on:jar:1.51:compile
| | \- com.jamesmurty.utils:java-xmlbuilder:jar:1.0:compile
| | \- net.iharder:base64:jar:2.3.8:compile
| +- org.apache.curator:curator-recipes:jar:2.6.0:compile
| | +- org.apache.curator:curator-framework:jar:2.6.0:compile
| | +- org.apache.zookeeper:zookeeper:jar:3.4.6:compile
| | \- com.google.guava:guava:jar:16.0.1:compile
| +- javax.servlet:javax.servlet-api:jar:3.1.0:compile
| +- org.apache.commons:commons-lang3:jar:3.5:compile
| +- org.apache.commons:commons-math3:jar:3.4.1:compile
| +- com.google.code.findbugs:jsr305:jar:1.3.9:compile
| +- org.slf4j:slf4j-api:jar:1.7.16:compile
| +- org.slf4j:jul-to-slf4j:jar:1.7.16:compile
| +- org.slf4j:jcl-over-slf4j:jar:1.7.16:compile
| +- log4j:log4j:jar:1.2.17:compile
| +- org.slf4j:slf4j-log4j12:jar:1.7.16:compile
| +- com.ning:compress-lzf:jar:1.0.3:compile
| +- org.xerial.snappy:snappy-java:jar:1.1.2.6:compile
| +- net.jpountz.lz4:lz4:jar:1.3.0:compile
| +- org.roaringbitmap:RoaringBitmap:jar:0.5.11:compile
| +- commons-net:commons-net:jar:2.2:compile
| +- org.scala-lang:scala-library:jar:2.11.8:compile
| +- org.json4s:json4s-jackson_2.11:jar:3.2.11:compile
| | \- org.json4s:json4s-core_2.11:jar:3.2.11:compile
| | +- org.json4s:json4s-ast_2.11:jar:3.2.11:compile
| | \- org.scala-lang:scalap:jar:2.11.0:compile
| | \- org.scala-lang:scala-compiler:jar:2.11.0:compile
| | +- org.scala-lang.modules:scala-xml_2.11:jar:1.0.1:compile
| | \- org.scala-lang.modules:scala-parser-combinators_2.11:jar:1.0.1:compile
| +- org.glassfish.jersey.core:jersey-client:jar:2.22.2:compile
| | +- javax.ws.rs:javax.ws.rs-api:jar:2.0.1:compile
| | +- org.glassfish.hk2:hk2-api:jar:2.4.0-b34:compile
| | | +- org.glassfish.hk2:hk2-utils:jar:2.4.0-b34:compile
| | | \- org.glassfish.hk2.external:aopalliance-repackaged:jar:2.4.0-b34:compile
| | +- org.glassfish.hk2.external:javax.inject:jar:2.4.0-b34:compile
| | \- org.glassfish.hk2:hk2-locator:jar:2.4.0-b34:compile
| | \- org.javassist:javassist:jar:3.18.1-GA:compile
| +- org.glassfish.jersey.core:jersey-common:jar:2.22.2:compile
| | +- javax.annotation:javax.annotation-api:jar:1.2:compile
| | +- org.glassfish.jersey.bundles.repackaged:jersey-guava:jar:2.22.2:compile
| | \- org.glassfish.hk2:osgi-resource-locator:jar:1.0.1:compile
| +- org.glassfish.jersey.core:jersey-server:jar:2.22.2:compile
| | +- org.glassfish.jersey.media:jersey-media-jaxb:jar:2.22.2:compile
| | \- javax.validation:validation-api:jar:1.1.0.Final:compile
| +- org.glassfish.jersey.containers:jersey-container-servlet:jar:2.22.2:compile
| +- org.glassfish.jersey.containers:jersey-container-servlet-core:jar:2.22.2:compile
| +- io.netty:netty-all:jar:4.0.43.Final:compile
| +- io.netty:netty:jar:3.9.9.Final:compile
| +- com.clearspring.analytics:stream:jar:2.7.0:compile
| +- io.dropwizard.metrics:metrics-core:jar:3.1.2:compile
| +- io.dropwizard.metrics:metrics-jvm:jar:3.1.2:compile
| +- io.dropwizard.metrics:metrics-json:jar:3.1.2:compile
| +- io.dropwizard.metrics:metrics-graphite:jar:3.1.2:compile
| +- com.fasterxml.jackson.core:jackson-databind:jar:2.6.5:compile
| | \- com.fasterxml.jackson.core:jackson-core:jar:2.6.5:compile
| +- com.fasterxml.jackson.module:jackson-module-scala_2.11:jar:2.6.5:compile
| | +- org.scala-lang:scala-reflect:jar:2.11.7:compile
| | \- com.fasterxml.jackson.module:jackson-module-paranamer:jar:2.6.5:compile
| +- org.apache.ivy:ivy:jar:2.4.0:compile
| +- oro:oro:jar:2.0.8:compile
| +- net.razorvine:pyrolite:jar:4.13:compile
| +- net.sf.py4j:py4j:jar:0.10.4:compile
| +- org.apache.commons:commons-crypto:jar:1.0.0:compile
| \- org.spark-project.spark:unused:jar:1.0.0:compile
+- com.bazaarvoice.jolt:jolt-complete:jar:0.1.0:compile
| \- com.bazaarvoice.jolt:json-utils:jar:0.1.0:compile
+- com.bazaarvoice.jolt:jolt-core:jar:0.1.0:compile
| \- javax.inject:javax.inject:jar:1:compile
+- org.apache.spark:spark-launcher_2.11:jar:2.2.0:compile
+- org.apache.spark:spark-network-common_2.11:jar:2.2.0:compile
| +- org.fusesource.leveldbjni:leveldbjni-all:jar:1.8:compile
| \- com.fasterxml.jackson.core:jackson-annotations:jar:2.6.5:compile
+- org.apache.spark:spark-network-shuffle_2.11:jar:2.2.0:compile
+- org.apache.spark:spark-unsafe_2.11:jar:2.2.0:compile
+- org.apache.spark:spark-tags_2.11:jar:2.2.0:compile
+- org.apache.spark:spark-sql_2.11:jar:2.2.0:compile
| +- com.univocity:univocity-parsers:jar:2.2.1:compile
| +- org.apache.parquet:parquet-column:jar:1.8.2:compile
| | +- org.apache.parquet:parquet-common:jar:1.8.2:compile
| | \- org.apache.parquet:parquet-encoding:jar:1.8.2:compile
| \- org.apache.parquet:parquet-hadoop:jar:1.8.2:compile
| +- org.apache.parquet:parquet-format:jar:2.3.1:compile
| \- org.apache.parquet:parquet-jackson:jar:1.8.2:compile
+- org.apache.spark:spark-catalyst_2.11:jar:2.2.0:compile
+- org.apache.spark:spark-sketch_2.11:jar:2.2.0:compile
\- org.apache.xbean:xbean-asm5-shaded:jar:4.5:compile
答案 0 :(得分：0)
我可以解决此问题。我查看了mvn生成的项目依赖项，发现缺少ANTLR ref。将其添加到mvn dependncy列表中，代码开始工作。感谢Alexandre Dupriez的指点。我自己从未猜到过。