我正在运行 hadoop 提供的字数统计示例。以下是我收到的错误:
-bash-4.1$ ./hadoop jar /home/chanders/Hadoop/bin/hadoop-examples-0.20.203.0.jar wordcount /usr/temp_hadoop /usr/output
Warning: Maximum heap size rounded up to 1024 MB
Warning: Maximum heap size rounded up to 1024 MB
Exception in thread "main" java.io.IOException: Error opening job jar: /home/chanders/Hadoop/bin/hadoop-examples-0.20.203.0.jar
at org.apache.hadoop.util.RunJar.main(RunJar.java:90)
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:129)
at java.util.jar.JarFile.<init>(JarFile.java:141)
at java.util.jar.JarFile.<init>(JarFile.java:78)
at org.apache.hadoop.util.RunJar.main(RunJar.java:88)
-bash-4.1$ ^C
-bash-4.1$ ./hadoop jar /home/chanders/Hadoop/bin/hadoop*examples*.jar wordcount /usr/temp_hadoop /usr/output
Warning: Maximum heap size rounded up to 1024 MB
Warning: Maximum heap size rounded up to 1024 MB
Exception in thread "main" java.io.IOException: Error opening job jar: /home/chanders/Hadoop/bin/hadoop*examples*.jar
at org.apache.hadoop.util.RunJar.main(RunJar.java:90)
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:129)
at java.util.jar.JarFile.<init>(JarFile.java:141)
at java.util.jar.JarFile.<init>(JarFile.java:78)
at org.apache.hadoop.util.RunJar.main(RunJar.java:88)
关于我的安装的信息:我按照 Michael Noll 的链接 Here 中的安装说明进行操作。 唯一的变化是我没有创建单独的 hadoop 用户。我在我的登录名下使用它。
最佳答案
jar 的路径有误。我更正了它。
关于hadoop - 在单节点集群上运行 Hadoop 示例时出错,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6877215/