Python mrjob bad--在Hadoop集群上使用make_runner时出现步骤错误

我试图以编程方式运行简单的wordcount示例，但我无法使代码在hadoop集群上运行

test_job.py中的作业： mr_job_test.py中的跑步者： 我可以在本地运行此代码（使用

inline

选项），但在hadoop上我得到了：

> Traceback (most recent call last):   File "mr_job_tester.py", line 17,
> in <module>
>     print test_runner(args, input_dir)   File "mr_job_tester.py", line 8, in test_runner
>     runner.run()   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 458, in
> run
>     self._run()   File "/usr/local/lib/python2.7/dist-packages/mrjob/hadoop.py", line 239, in
> _run
>     self._run_job_in_hadoop()   File "/usr/local/lib/python2.7/dist-packages/mrjob/hadoop.py", line 295, in
> _run_job_in_hadoop
>     for step_num in xrange(self._num_steps()):   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 742, in
> _num_steps
>     return len(self._get_steps())   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 721, in
> _get_steps
>     raise ValueError("Bad --steps response: \n%s" % stdout) ValueError: Bad --steps response:

>回溯（最后一次调用）：文件“mr_job_tester.py”，第17行，
>在
>打印test_runner（args，input_dir）文件“mr_job_tester.py”，第8行，在test_runner中
>runner.run（）文件“/usr/local/lib/python2.7/dist-packages/mrjob/runner.py”，第458行，在
>跑
>self._run（）文件“/usr/local/lib/python2.7/dist-packages/mrjob/hadoop.py”，第239行，在
>_run
>self.\u运行hadoop（）文件“/usr/local/lib/python2.7/dist packages/mrjob/hadoop.py”中的“作业”，第295行，在
>在hadoop中运行作业
>对于xrange（self._num_steps（））中的步骤数：文件“/usr/local/lib/python2.7/dist packages/mrjob/runner.py”，第742行，在
>_num_步数
>返回len（self.\u get_steps（））文件“/usr/local/lib/python2.7/dist packages/mrjob/runner.py”，第721行，在
>_获得_步骤
>raise VALUERROR（“错误--步骤响应：\n%s”%stdout）VALUE错误：错误--步骤响应：

（）mrjob提交作业文件并在mapper和reducer中远程执行作业文件的方式，使得以下行必须位于作业声明文件中：

if __name__ == "__main__":
    MRWordFreqCount.run()

> Traceback (most recent call last):   File "mr_job_tester.py", line 17,
> in <module>
>     print test_runner(args, input_dir)   File "mr_job_tester.py", line 8, in test_runner
>     runner.run()   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 458, in
> run
>     self._run()   File "/usr/local/lib/python2.7/dist-packages/mrjob/hadoop.py", line 239, in
> _run
>     self._run_job_in_hadoop()   File "/usr/local/lib/python2.7/dist-packages/mrjob/hadoop.py", line 295, in
> _run_job_in_hadoop
>     for step_num in xrange(self._num_steps()):   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 742, in
> _num_steps
>     return len(self._get_steps())   File "/usr/local/lib/python2.7/dist-packages/mrjob/runner.py", line 721, in
> _get_steps
>     raise ValueError("Bad --steps response: \n%s" % stdout) ValueError: Bad --steps response:

if __name__ == "__main__":
    MRWordFreqCount.run()