nul*_*ari 2 scala apache-spark
我正在尝试运行由Spark结构化流组成的应用程序-来自kafka的数据输入。Spark版本是2.4.0,scala版本是2.12.7。我正在使用sbt制作多个胖子-我的项目是多模块项目。建立罐子不是问题。当我尝试spark-submit用我的罐子时,NoSuchMethodError发生了。
provided从删除了范围spark-sql-kafka-0-10。val sparkSqlKafka = "org.apache.spark" %% "spark-sql-kafka-0-10" % sparkVersion
assemblyMergeStrategy我在下面添加了一行。case "META-INF/services/org.apache.spark.sql.sources.DataSourceRegister" => MergeStrategy.concat
这是整个错误日志。
2019-01-08 11:55:12 ERROR ApplicationMaster:91 - User class threw exception: java.util.ServiceConfigurationError: org.apache.spark.sql.sources.DataSourceRegister: Provider org.apache.spark.sql.kafka010.KafkaSourceProvider could not be instantiated
java.util.ServiceConfigurationError: org.apache.spark.sql.sources.DataSourceRegister: Provider org.apache.spark.sql.kafka010.KafkaSourceProvider could not be instantiated
at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at scala.collection.convert.Wrappers$JIteratorWrapper.next(Wrappers.scala:43)
at scala.collection.Iterator$class.foreach(Iterator.scala:891)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$class.filterImpl(TraversableLike.scala:247)
at scala.collection.TraversableLike$class.filter(TraversableLike.scala:259)
at scala.collection.AbstractTraversable.filter(Traversable.scala:104)
at org.apache.spark.sql.execution.datasources.DataSource$.lookupDataSource(DataSource.scala:630)
at org.apache.spark.sql.streaming.DataStreamReader.load(DataStreamReader.scala:161)
at ThisIsMyClass$.main(ThisIsMyClass.scala:28)
at ThisIsMyClass.main(ThisIsMyClass.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:497)
at org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:678)
Caused by: java.lang.NoSuchMethodError: org.apache.spark.internal.Logging.$init$(Lorg/apache/spark/internal/Logging;)V
at org.apache.spark.sql.kafka010.KafkaSourceProvider.<init>(KafkaSourceProvider.scala:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at java.lang.Class.newInstance(Class.java:442)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
... 19 more
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编辑1。
整个依赖项如下。
val sparkVersion = "2.4.0"
val typesafeConfigVersion = "1.3.3"
val scalaTestVersion = "3.0.5"
val junitVersion = "4.12"
val sparkCore = "org.apache.spark" %% "spark-core" % sparkVersion % "provided"
val sparkSql = "org.apache.spark" %% "spark-sql" % sparkVersion % "provided"
val sparkMllib = "org.apache.spark" %% "spark-mllib" % sparkVersion % "provided"
val typesafeConfig = "com.typesafe" % "config" % typesafeConfigVersion
val scalaTest = "org.scalatest" %% "scalatest" % scalaTestVersion % Test
val junit = "junit" % "junit" % "4.12" % Test
val logback = "ch.qos.logback" % "logback-classic" % "1.2.3"
val scalaLogging = "com.typesafe.scala-logging" %% "scala-logging" % "3.9.0"
val sparkStreaming = "org.apache.spark" %% "spark-streaming" % sparkVersion % "provided"
val sparkSqlKafka = "org.apache.spark" %% "spark-sql-kafka-0-10" % sparkVersion
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编辑2。
我发现我的依赖版本存在问题slf4j-api。
因此,我已将构建配置更改为仅使用一个版本slf4j-api-具有spark-core依赖性的版本匹配。并排除其他slf4j-api。
而且仍然相同的错误。:(
编辑3。
我已经--packages org.apache.spark:spark-sql-kafka-0-10_2.12:2.4.0在spark-submit脚本中添加了。
而且仍然相同的错误。
问题解决了。
当我打开时spark-shell,我发现Spark版本是2.4.0,scala版本是2.11。
我的Scala版本build.sbt为2.12。
Scala版本是关键!
谢谢大家
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