按照文档:http://www.micmiu.com/bigdata/hadoop/hadoop2x-eclipse-mapreduce-demo/安装配置好Eclipse后,运行WordCount程序报错: log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory). log4j:WARN Please initialize the log4j…

报错信息 17/07/06 17:00:27 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same.17/07/06 17:00:27 WARN mapred.JobClient: No job jar file set. User classes may not be found. See JobConf…

eclipse运行hadoop程序报错:Connection refused: no further information log4j:WARN No appenders could be found for logger (org.apache.hadoop.conf.Configuration.deprecation). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging…

windows下Eclipse操作MapReduce例子报错: 14/05/18 22:05:29 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 14/05/18 22:05:29 ERROR security.UserGroupInformation: PriviledgedActi…

debug运行java程序报错 ERROR: transport error 202: connect failed: Connection timed out ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510) JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [debugInit.c:750] 错误…

用java运行Hadoop例程报错:org.apache.hadoop.fs.LocalFileSystem cannot be cast to org.apache.所写代码如下: package com.pcitc.hadoop; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileSystem; import org.apache.h…

1. 安装了eclipsecdt版 2. 采用mingw 编译第一个c程序,报错“launch failed,binary not found”.检查是mingw下的bin目录在环境变量里设置错了. set path=%path%;G:/mingw/bin //放在系统环境变量 set LIBRARY_PATH=G:/lib set C_INCLUDE_PATH=G:/mingw/include 在CDT中每一次新项目建成后,系统一般默认会进行第一次的构建,也就是自动生成可执行文件.可是事实我们…

mapreduce真的是门学问,遇到的问题逼着我把它从MRv1摸索到MRv2,从年前就牵挂在心里,连过年回家的旅途上都是心情凝重,今天终于在eclipse控制台看到了job completed successfully,当时的兴奋难以形容,都有些不敢相信自己的眼睛,压抑住激动的心情再试了一遍,特么真的跑通了,喜极而泣. 总结起来就是两处 1.报错Class not found 或者 No job jar file set 这是由于及集群中没有我们提交的jar包,所以namenode不知道怎么执行…

首先,当在运行java程序出现这个错误时,首先考虑是不是路径或者未指定正确的包名,例如当运行下面这个文件时: package cn.wgh.socket; public class HelloWorld { public static void main(String[] args) { System.out.println("Hello world!"); } } 应该要将cmd的目录设置到项目的根目录后,再来进行运行操作,比如说我的项目目录是这样的: E:\Work\MyJava\…

创建一个VC++空工程,将Project Properties->General->Use of MFC改为Use MFC in a Shared DLL 新建一个源文件,内容如下 #include <iostream> #include <afxinet.h> using namespace std; int main() { system("pause"); ; } 运行工程,没问题 将Project Properties->General…