在CDH虚拟机上找不到python mrjob模块

我正在使用Mrjob在Hadoop中运行python代码。我在单个节点群集上使用CDH软件包和虚拟机。我mrjob正确运行，当我测试本地代码，但是当我跑了Hadoop集群，它抛出一个错误：在CDH虚拟机上找不到python mrjob模块

No module named mrjob

当我删除“命令”蟒蛇之前命令，我得到了以下信息。

no configs found; falling back on auto-configuration 
no configs found; falling back on auto-configuration 
creating tmp directory /tmp/main_mrjob.cloudera.20131022.180113.820659 
writing wrapper script to /tmp/main_mrjob.cloudera.20131022.180113.820659/setup-wrapper.sh 
STDERR: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/util/PlatformName 
STDERR: Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.util.PlatformName 
STDERR:  at java.net.URLClassLoader$1.run(URLClassLoader.java:202) 
STDERR:  at java.security.AccessController.doPrivileged(Native Method) 
STDERR:  at java.net.URLClassLoader.findClass(URLClassLoader.java:190) 
STDERR:  at java.lang.ClassLoader.loadClass(ClassLoader.java:306) 
STDERR:  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) 
STDERR:  at java.lang.ClassLoader.loadClass(ClassLoader.java:247) 
STDERR: Could not find the main class: org.apache.hadoop.util.PlatformName. Program will exit. 
STDERR: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/fs/FsShell 
STDERR: Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.fs.FsShell 
STDERR:  at java.net.URLClassLoader$1.run(URLClassLoader.java:202) 
STDERR:  at java.security.AccessController.doPrivileged(Native Method) 
STDERR:  at java.net.URLClassLoader.findClass(URLClassLoader.java:190) 
STDERR:  at java.lang.ClassLoader.loadClass(ClassLoader.java:306) 
STDERR:  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) 
STDERR:  at java.lang.ClassLoader.loadClass(ClassLoader.java:247) 
STDERR: Could not find the main class: org.apache.hadoop.fs.FsShell. Program will exit. 
Traceback (most recent call last): 
    File "main_mrjob.py", line 17, in <module> 
    MRWordFrequencyCount.run() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/job.py", line 500, in run 
    mr_job.execute() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/job.py", line 518, in execute 
    super(MRJob, self).execute() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/launch.py", line 146, in execute 
    self.run_job() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/launch.py", line 207, in run_job 
    runner.run() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/runner.py", line 458, in run 
    self._run() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/hadoop.py", line 236, in _run 
    self._upload_local_files_to_hdfs() 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/hadoop.py", line 263, in _upload_local_files_to_hdfs 
    self._mkdir_on_hdfs(self._upload_mgr.prefix) 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/hadoop.py", line 271, in _mkdir_on_hdfs 
    self.invoke_hadoop(['fs', '-mkdir', path]) 
    File "/home/cloudera/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/mrjob/fs/hadoop.py", line 104, in invoke_hadoop 
    raise CalledProcessError(proc.returncode, args) 
subprocess.CalledProcessError: Command '['/usr/lib/hadoop-0.20-mapreduce/bin/hadoop', 'fs', '-mkdir', 'hdfs:///user/cloudera/tmp/mrjob/main_mrjob.cloudera.20131022.180113.820659/files/']' returned non-zero exit status 1

它似乎不能“mkdir”hdfs没有sudo但与sudo它无法找到mrjob。我真的很困惑....

非常感谢！

杨

来源

2013-10-22 sky jiao

当使用Cloudera的快速启动虚拟机，我经历了同样的问题。

的解决方案是：

设置HADOOP_HOME为 “/ usr/lib中/ Hadoop的”：
```
export HADOOP_HOME=/usr/lib/hadoop 
```

创建符号链接到Hadoop的streaming.jar：

sudo ln -s /usr/lib/hadoop-mapreduce/hadoop-streaming.jar /usr/lib/hadoop

来源

2013-11-06 13:58:51 Simikolon

在CDH虚拟机上找不到python mrjob模块

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