在IDEA运行Spark碰到报错
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3619/9/25 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
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31<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>
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