在IDEA运行Spark碰到报错
19/9/25 17:15:44 ERROR MetricsSystem: Sink class org.apache.spark.metrics.sink.MetricsServlet cannot be instantiated
19/9/25 17:15:44 ERROR SparkContext: Error initializing SparkContext.
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.spark.metrics.MetricsSystem$$anonfun$registerSinks$1.apply(MetricsSystem.scala:200)
at org.apache.spark.metrics.MetricsSystem$$anonfun$registerSinks$1.apply(MetricsSystem.scala:194)
at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
at org.apache.spark.metrics.MetricsSystem.registerSinks(MetricsSystem.scala:194)
at org.apache.spark.metrics.MetricsSystem.start(MetricsSystem.scala:102)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:522)
at com.hadoop.KafkaReceiver$.main(KafkaReceiver.scala:14)
at com.hadoop.KafkaReceiver.main(KafkaReceiver.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/ObjectIdResolver
at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:543)
at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:448)
at org.apache.spark.metrics.sink.MetricsServlet.<init>(MetricsServlet.scala:48)
... 21 more
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.ObjectIdResolver
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 24 more
解决方法:
修改pom文件spark的依赖顺序
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ruozedata.bigdata</groupId>
<artifactId>scala-spark-flink</artifactId>
<version>1.0</version>
<properties>
<scala.version>2.11.8</scala.version>
<hadoop.version>2.6.0-cdh5.15.1</hadoop.version>
<spark.version>2.4.4</spark.version>
</properties>
<repositories>
<repository>
<id>cloudera</id>
<url>https://repository.cloudera.com/artifactory/cloudera-repos/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
最后
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