[jira] [Created] (HDFS-8159) [HDFS-Quota] Verification is not done while setting dir namequota and size

["Jagadesh Kiran N (JIRA)" <ji...@apache.org>]

Jagadesh Kiran N created HDFS-8159:
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             Summary: [HDFS-Quota] Verification is not done while setting dir namequota and size
                 Key: HDFS-8159
                 URL: https://issues.apache.org/jira/browse/HDFS-8159
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: HDFS
    Affects Versions: 2.6.0
         Environment: Suse 11 SP3
            Reporter: Jagadesh Kiran N
            Priority: Minor


Name Quota and space quota is not verifying when setting a new value to a directory which already has subdirectories or contents.
Below are the steps to re-produce the cases:

*+Case-1+*

Step-1) Create a New folder 
hdfs dfs -mkdir /test
Step-2) Create sub folders
hdfs dfs -mkdir /test/one
hdfs dfs -mkdir /test/two
hdfs dfs -mkdir /test/three
Step-3) Set Name Quota as two 
hdfs dfsadmin  -setQuota 2 /test
Step-3) Quota will be set with out the validating the dirs 

+Output:+ Eventhough name quota value is lower than the existing number of dirs, its not validating and allowing to set the new value.

+Suggestion:+ Validate the name quota against the number of contents before setting the new value.

*+Case-2+*

Step-1) Add any new folder or file , it will give error message
mkdir: The NameSpace quota (directories and files) of directory /test is exceeded: quota=2 file count=5
Step-2) Clear the Quota 
hdfs dfsadmin -clrQuota /test
Step-3) Now Set the Size less than the folder size 
hdfs dfsadmin -setSpaceQuota 10 /test

+Output:+ Eventhough space quota value is less than the size of the existing dir contents, its not validating and allowing to set the new value.

+Suggestion:+ Validate the quota against the used space before setting the new value.




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