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From "Nasir Ali (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-13390) AccessControlException for overwrite but not for delete
Date Tue, 03 Apr 2018 13:45:00 GMT
Nasir Ali created HDFS-13390:
--------------------------------

             Summary: AccessControlException for overwrite but not for delete
                 Key: HDFS-13390
                 URL: https://issues.apache.org/jira/browse/HDFS-13390
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs
    Affects Versions: 2.9.0
         Environment: *Environment:*
OS: Centos
PyArrow Version: 0.8.0
Python version: 3.6
HDFS: 2.9
            Reporter: Nasir Ali


 

*Problem:*
I have a file (F-1) saved in HDFS with permissions set to "-rw-r--r--" with user "cnali".
User "nndugudi" cannot overwrite F-1 (vice versa). hdfs.write will generate following exception:

org.apache.hadoop.security.AccessControlException: Permission denied: user=nndugudi, access=WRITE,
inode="/cerebralcortex/data/00000000-f81c-44d2-9db8-fea69f468d58/00000000-5087-3d56-ad0e-0b27c3c83182/20171105.gz":cnali:supergroup:-rw-r--r--

However, user "nndugudi" can delete the file without any problem. So why overwriting file
will produce AccessControlException and not the delete method?

*Sample Code*:
File: [https://github.com/MD2Korg/CerebralCortex/blob/master/cerebralcortex/core/data_manager/raw/stream_handler.py]

LOC: 659-705 (write_hdfs_day_file)

 

*HDFS Configurations*:

All configurations are set to default. Security is also disabled as of now.

 



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