这是我第一次使用mrjob，但是在使用mrjob执行相关python脚本时遇到以下问题：
No configs found; falling back on auto-configuration
Looking for hadoop binary in /home/work/alex/tools/hadoop-client-1.5.5/hadoop/bin...
Found hadoop binary: /home/work/alex/tools/hadoop-client-1.5.5/hadoop/bin/hadoop
Creating temp directory /tmp/simrank_mr.work.20161204.050846.350418
Using Hadoop version 2
STDERR: 16/12/04 13:08:48 INFO common.UpdateService: ZkstatusUpdater to hn01-lp-hdfs.dmop.ac.com:54310 started
STDERR: mkdir: cannot create directory -p: File exists
STDERR: java.io.IOException: cannot create directory -p: File exists
STDERR: at org.apache.hadoop.fs.FsShell.mkdir(FsShell.java:1020)
STDERR: at org.apache.hadoop.fs.FsShell.doall(FsShell.java:1934)
STDERR: at org.apache.hadoop.fs.FsShell.run(FsShell.java:2259)
STDERR: at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
STDERR: at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
STDERR: at org.apache.hadoop.fs.FsShell.main(FsShell.java:2331)
Traceback (most recent call last):
File "simrank_mr.py", line 121, in <module>
MRSimRank.run()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/job.py", line 429, in run
mr_job.execute()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/job.py", line 447, in execute
super(MRJob, self).execute()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/launch.py", line 158, in execute
self.run_job()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/launch.py", line 228, in run_job
runner.run()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/runner.py", line 481, in run
self._run()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/hadoop.py", line 335, in _run
self._upload_local_files_to_hdfs()
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/hadoop.py", line 362, in _upload_local_files_to_hdfs
self.fs.mkdir(self._upload_mgr.prefix)
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/fs/composite.py", line 76, in mkdir
return self._do_action('mkdir', path)
File "/home/work/.jumbo/lib/python2.7/site-packages/mrjob-0.5.6-py2.7.egg/mrjob/fs/composite.py", line 63, in _do_action
raise first_exception
IOError: Could not mkdir hdfs:///user/work/alex/tmp/cluster/mrjob/tmp/tmp/simrank_mr.work.20161204.050846.350418/files/
任何人都知道如何解决这个问题？非常感谢！