当我运行hadoop作业时，它失败并显示以下堆栈跟踪:11/10/0613:12:49INFOmapred.FileInputFormat:Totalinputpathstoprocess:111/10/0613:12:49INFOmapred.JobClient:Cleaningupthestagingareahdfs://localhost:54310/app/hadoop/tmp/mapred/staging/Har/.staging/job_201110051450_000711/10/0613:12:49ERRORstreaming.StreamJob:ErrorLaunch
我试图让hadoop和hive在我的linux系统上本地运行，但是当我运行jps时，我注意到数据节点服务丢失了:vaughn@vaughn-notebook:/usr/local/hadoop$jps2209NameNode2682ResourceManager3084Jps2510SecondaryNameNode如果我运行bin/hadoopdatanode，会出现以下错误:17/07/1319:40:14INFOdatanode.DataNode:registeredUNIXsignalhandlersfor[TERM,HUP,INT]17/07/1319:40:14WARNut
我在装有Java1.8的Windows10上使用ApacheNutch1.14。我已按照https://wiki.apache.org/nutch/NutchTutorial中提到的相同步骤进行操作.当我尝试使用cygwin上的命令将URL注入(inject)crawldb时:bin/nutchinjectcrawl/crawldburls我收到以下错误:注入(inject)器:java.io.IOException:命令字符串中的(null)条目:nullchmod0644E:\apache-nutch-1.4\runtime\local\crawl\crawldb.locked在o
我全新安装了hadoopyarn并通过hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples...中给定的jar文件执行了wordcount示例，但是当我尝试编译wordcountsource并运行它，它给了我java.io.IOException:NoFileSystemforscheme:hdfs。上面的异常与这行代码有关:FileInputFormat.addInputPath(job,newPath(args[0]));编辑:命令和输出如下:hduser@master-virtual-machine:~$hadoopjar
publicstaticvoidmain(String[]args)throwsIOException{Configurationconf=newConfiguration();conf.addResource(newPath("/home/myname/hadoop-1.2.1/conf/core-site.xml"));conf.addResource(newPath("/home/myname/hadoop-1.2.1/conf/hdfs-site.xml"));System.out.println("AttemptinginitializationofFileSystem");
我正在尝试运行基本的EmbeddedPigJava代码。我正在从远程计算机访问Hadoop集群。Hadoop版本:2.0.0-cdh4.3.0，pig版本:0.11.0-cdh4.3.0代码如下所示:PropertieslProperties=newProperties();lProperties.setProperty("fs.defaultFS",":");lProperties.setProperty("yarn.resourcemanager.address",":");try{PigServerpigServer=newPigServer(ExecType.MAPREDUCE
我是hadoop的新手，正在尝试运行书中的示例程序。我面临错误错误:java.io.IOException:映射中的键类型不匹配:预期的org.apache.hadoop.io.Text，收到org.apache.hadoop.io.LongWritable下面是我的代码packagecom.hadoop.employee.salary;importjava.io.IOException;importorg.apache.hadoop.io.FloatWritable;importorg.apache.hadoop.io.LongWritable;importorg.apache.ha
我的MapReduce程序如下:importjava.io.IOException;importjava.util.Iterator;importorg.apache.hadoop.conf.Configuration;importorg.apache.hadoop.fs.Path;importorg.apache.hadoop.io.IntWritable;importorg.apache.hadoop.io.Text;importorg.apache.hadoop.mapreduce.Job;importorg.apache.hadoop.mapreduce.Mapper;impo
当我输入命令时:./sqoop-import--connectjdbc:mysql://localhost/sqoop2-tablesqeep2-m1-hive-import当执行这条命令时:hadoop@dewi:/opt/sqoop/bin$./sqoop-import--connectjdbc:mysql://localhost/sqoop2-tablesqeep2-m1-hive-import12/06/2010:00:44INFOtool.BaseSqoopTool:UsingHive-specificdelimitersforoutput.Youcanoverride12/
我使用Hadoop发行版1.1.2。当我尝试运行示例wordcount例程时，出现以下错误。输入命令:'D:/Files/hadoop-1.1.2/hadoop-1.1.2/bin/hadoop'jar'D:/Files/hadoop-1.1.2/hadoop-1.1.2/hadoop-examples-1.1.2.jar'wordcountinputoutput结果:13/07/0311:02:42WARNutil.NativeCodeLoader:Unabletoloadnative-hadooplibraryforyourplatform...usingbuiltin-javac
