org.apache.hadoop.io.LongWritable cannot be cast to org.apache.hadoop.io.Text - 代码天地

org.apache.hadoop.io.LongWritable cannot be cast to org.apache.hadoop.io.Text

其他 2018-10-25 04:34:24 阅读次数: 0

public static class MyMapper extends Mapper<Text,Text,Text,IntWritable>{
解决办法：将Text改为Object或者LonWritable
public static class MyMapper extends Mapper<Object,Text,Text,IntWritable>{

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转载自blog.csdn.net/sofun2018/article/details/83001859

org.apache.hadoop.io.LongWritable cannot be cast to org.apache.hadoop.io.Text

Hadoop: LongWritable cannot be cast to org.apache.hadoop.io.IntWritable

SEQ!org.apache.hadoop.io.LongWritable

Type mismatch in key from map: expected org.apache.hadoop.io.Text, received org.apache.hadoop.io.LongWritable

HiveHBaseTableOutputFormat cannot be cast to org.apache.hadoop.hive.ql.io.HiveOutputFormat解决方法

org.apache.hadoop.io.Text使用的问题

expected org.apache.hadoop.io.IntWritable, recieved org.apache.hadoop.io.Text

大数据篇 --错题集 java.lang.ClassCastException: cannot be cast to org.apache.hadoop.io.ByteWritable

大数据篇 --错题集自定义InputFromat的错误cannot be cast to org.apache.hadoop.io.NullWritable

Type mismatch in value from map: expected org.apache.hadoop.io.Text, received org.apache.hadoop.io.

DefaultDataBufferFactory cannot be cast to org.springframework.core.io.buffer.NettyDataBufferFactory

JavaReflectionManager cannot be cast to org hibernate annota

org.apache.catalina.util.DefaultAnnotationProcessor cannot be cast to org.apache

org.apache.spark.rdd.MapPartitionsRDD cannot be cast to org.apache.spark.streaming.kafka010.HasOffse

org.apache.jasper.el.ELContextImpl cannot be cast to org.apache.jasper.el.ELContextImpl

org.apache.catalina.connector.RequestFacade cannot be cast to org.springframewor

org.apache.catalina.util.DefaultAnnotationProcessor cannot be cast to org.ap解决方

org.springframework.web.struts.ContextLoaderPlugIn cannot be cast to org.apache.

org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.Mult

java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.spri

spring mvc 上传时 org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework

org.apache.catalina.util.DefaultAnnotationProcessor cannot be cast to org.ap解决方案

java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.spri...

java.io.IOException: java.lang.ClassCastException: Cannot cast org.springframework.web.SpringServlet

tomcat启动报错：java.lang.ClassCastException: org.apache.jasper.runtime.ELContextImpl cannot be cast to..

报错HTTP Status 500 - java.lang.ClassCastException: org.apache.jasper.el.ELContextImpl cannot be cast

org.apache.spark.sql.catalyst.expressions.GenericRowWithSchema cannot be cast to scala.Tuple2

com.github.pagehelper.PageHelper cannot be cast to org.apache.ibatis.plugin.Interceptor

PageHelper：com.github.pagehelper.PageHelper cannot be cast to org.apache.ibatis.plugin.Interceptor

PageHelper-com.github.pagehelper.PageHelper cannot be cast to org.apache.ibatis.plugin.Interceptor

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