spark报错:java.lang.ClassNotFoundException: org.apache.parquet.Log

spark启动报错:java.lang.ClassNotFoundException: org.apache.parquet.Log

错误的全部描述如下:

java.util.ServiceConfigurationError: org.apache.spark.sql.sources.DataSourceRegister: Provider org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat 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$class.foreach(Iterator.scala:893)
  at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
  at scala.collection.IterableLike$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$.lookupDataSource(DataSource.scala:526)
  at org.apache.spark.sql.execution.datasources.DataSource.providingClass$lzycompute(DataSource.scala:87)
  at org.apache.spark.sql.execution.datasources.DataSource.providingClass(DataSource.scala:87)
  at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:302)
  at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178)
  at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:146)
  at org.apache.spark.sql.DataFrameReader.jdbc(DataFrameReader.scala:193)
  ... 48 elided
Caused by: java.lang.NoClassDefFoundError: org/apache/parquet/Log
  at org.apache.spark.sql.execution.datasources.parquet.ParquetLogRedirector.(ParquetLogRedirector.java:37)
  at org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.(ParquetFileFormat.scala:64)
  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 java.lang.Class.newInstance(Class.java:442)
  at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
  ... 65 more
Caused by: java.lang.ClassNotFoundException: org.apache.parquet.Log
  at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
  ... 73 more

分析

出现这类java.lang.ClassNotClassFoundExcepetion的错误就说明找不到相关的类，所以解决方案如下:

• 如果是在Idea中编写程序的时候出现了上述的错误，则在pom文件里面添加相关依赖:

    org.apache.parquet
    parquet-common
    1.8.2

• 如果在启动spark-shell，然后在里面使用交互式命令的时候出现这个错误的话，请下载这个jar包点我下载，然后将这个jar包添加到你的SPARK_HOME的jars目录下。然后重启spark-shell。这个错误就应该解决了。没有解决的话，重启一下spark再看看(毕竟我这边测试的时候，重新重启了一下spark，然后测试通过了的)