datanode不能启动时也可查看日志查找问题来源。 Input path does not exist: hdfs://localhost:9000/user/root/inputfile 运行hadoop程序的时候,输入文件必须先放入hdfs文件系统中,不能是本地文件,如果是本地文件就会报上述找不到文件的错误。解决方案是首先利用put或者copyFromLocal拷贝文件到hdfs中,然后再运行hadoop程...
检查Hadoop配置文件: 确保Hadoop的配置文件(如core-site.xml、hdfs-site.xml等)没有错误,并且指向正确的路径。 通过上述步骤,你应该能够解决“jar does not exist or is not a normal file”的错误。如果问题仍然存在,可能需要更详细地检查Hadoop的安装和配置。
【小技巧】Shell批量处理报错信息,检测本地jar包是否存在 .70.4.20.-0.9.1.:opt/app/apache-tez-0.9.1-bin/tez-api-0.9.1.jar:/opt/app/apache-tez-0.9.1-bin/tez-common-0.9.1.jar:/opt/app/apache-tez-0.9.1-bin/tez-dag-0.9.1.jar does not exist 抛出了一堆使用冒号分割的jar包字符串。当然...
main方法如下: public class WCRunner { public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException { Configuration conf = new Configuration(); conf.set("mapreduce.job.jar", "wc.jar"); conf.set("mapreduce.framework.name", "yarn"); conf.set("yarn....
访问HDFS Java代码 package com.yodosmart.hadoop; import java.io.BufferedReader; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; ...
ENpython开发安装第三方库时，很多人选择在cmd终端用命令行pip进行安装。 然而有时敲入pip命令会提示...
hdfs dfs -mkdir -p /user/test/ hdfs上传文件的详细步骤点击此处 2.如果读取的是本地文件,那么就好好看看命令,读取本地文件的时候文件路径前面要加 file: 我出错就是因为没加file: 这个单词 错误的命令: scala> sc.textFile("/usr/local/spark/test.txt").flatMap(_.split(" ")).map((_,1)).reduc...
HADOOP_USER_NAME=hdfs hive ... -hiveconf hive.aux.jars.path=/home/ed/Downloads/serde/json-serde-1.3.7-jar-with-dependencies.jar this errors with: File does not exist: /home/ed/Downloads/serde/json-serde-1.3.7-jar-with-dependencies.jar I have copied the file to that location for...
before count:MappedRDD[1] at textFile at Analysis.scala:35 Exception in thread "main" java.io.IOException: No FileSystem for scheme: hdfs at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2421) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2428) ...
hadoop-hdfs-2.7.2.jar file has the following types. META-INF/MANIFEST.MF META-INF/maven/org.apache.hadoop/hadoop-hdfs/pom.properties META-INF/maven/org.apache.hadoop/hadoop-hdfs/pom.xml META-INF/services/org.apache.hadoop.fs.FileSystem META-INF/services/org.apache.hadoop.security.token.Token...