英文:
SparkSession initilization throws ExceptionInInitializerError
问题
Sure, here is the translated content you provided:
我尝试运行一个简单的Spark Structured Streaming作业，但在调用`SparkSession`的`getOrCreate()`时出现错误...
我像这样创建了`SparkSession`：
```java
SparkSession spark = SparkSession
.builder()
.appName("CountryCount")
.master("local[*]")
.getOrCreate();
使用这个pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<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">
<artifactId>spark-streaming</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<spark.version>3.0.0</spark.version>
<mvn-shade.version>3.2.4</mvn-shade.version>
<slf4j.version>1.7.30</slf4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${mvn-shade.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-core -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming_2.12</artifactId>
<version>${spark.version}</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-sql -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming-kafka-0-10 -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming-kafka-0-10_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${mvn-shade.version}</version>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
然而，我遇到了以下异常：
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.apache.spark.storage.BlockManagerMasterEndpoint.<init>(BlockManagerMasterEndpoint.scala:93)
at org.apache.spark.SparkEnv$.$anonfun$create$9(SparkEnv.scala:370)
at org.apache.spark.SparkEnv$.registerOrLookupEndpoint$1(SparkEnv.scala:311)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:359)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:189)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:267)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:442)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2555)
at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$1(SparkSession.scala:930)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:921)
at JobCountryCount.createJob(JobCountryCount.java:43)
at JobCountryCount.<init>(JobCountryCount.java:27)
at JobCountryCount.main(JobCountryCount.java:21)
Caused by: java.lang.NullPointerException
at org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast(SystemUtils.java:1654)
at org.apache.spark.storage.StorageUtils$.<init>(StorageUtils.scala:207)
at org.apache.spark.storage.StorageUtils$.<clinit>(StorageUtils.scala)
... 14 more
提前感谢您！
<details>
<summary>英文:</summary>
I'm trying to run a simple Spark Structured Streaming job, but I get an error when calling `getOrCreate()` on `SparkSession`...
I create the `SparkSession` like this:
```java
SparkSession spark = SparkSession
.builder()
.appName("CountryCount")
.master("local[*]")
.getOrCreate();
Using this pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<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">
<artifactId>spark-streaming</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<spark.version>3.0.0</spark.version>
<mvn-shade.version>3.2.4</mvn-shade.version>
<slf4j.version>1.7.30</slf4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${mvn-shade.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-core -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming_2.12</artifactId>
<version>${spark.version}</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-sql -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming-kafka-0-10 -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming-kafka-0-10_2.12</artifactId>
<version>${spark.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${mvn-shade.version}</version>
<executions>
<execution>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
However, I get the following exception:
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.apache.spark.storage.BlockManagerMasterEndpoint.<init>(BlockManagerMasterEndpoint.scala:93)
at org.apache.spark.SparkEnv$.$anonfun$create$9(SparkEnv.scala:370)
at org.apache.spark.SparkEnv$.registerOrLookupEndpoint$1(SparkEnv.scala:311)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:359)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:189)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:267)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:442)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2555)
at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$1(SparkSession.scala:930)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:921)
at JobCountryCount.createJob(JobCountryCount.java:43)
at JobCountryCount.<init>(JobCountryCount.java:27)
at JobCountryCount.main(JobCountryCount.java:21)
Caused by: java.lang.NullPointerException
at org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast(SystemUtils.java:1654)
at org.apache.spark.storage.StorageUtils$.<init>(StorageUtils.scala:207)
at org.apache.spark.storage.StorageUtils$.<clinit>(StorageUtils.scala)
... 14 more
Thank you in advance!
答案1
得分: 2
看起来你的类路径上的Apache commons-lang库版本低于3.8，不支持JDK11。请查看https://issues.apache.org/jira/browse/LANG-1384。
由于Apache Spark 3.0.0正在使用3.9，我猜测你的环境可能也使用了旧版本的Spark（或Hadoop）。你可以在你的代码中打印classOf[org.apache.commons.lang3.SystemUtils].getResource("SystemUtils.class")，它会告诉你这个类来自哪里。
英文:
Looks like the version of Apache commons-lang library on your classpath is less than 3.8 which doesn't support JDK11. See https://issues.apache.org/jira/browse/LANG-1384 .
Since Apache Spark 3.0.0 is using 3.9, my hunch is your environment may also have an old Spark (or Hadoop) version. You can print classOf[org.apache.commons.lang3.SystemUtils].getResource("SystemUtils.class") in your codes. It will tell you where the class comes from.
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