[jira] [Created] (HDFS-13832) EC: No administrative command provided to delete an user-defined erasure coding policy

["Souryakanta Dwivedy (JIRA)" <ji...@apache.org>]

Souryakanta Dwivedy created HDFS-13832:
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             Summary: EC: No administrative command provided to delete an user-defined erasure coding policy
                 Key: HDFS-13832
                 URL: https://issues.apache.org/jira/browse/HDFS-13832
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: erasure-coding
    Affects Versions: 3.0.0
         Environment: 3 node SUSE linux cluster
            Reporter: Souryakanta Dwivedy
         Attachments: Delete_ec_policy.PNG

No administrative command provided to delete an user defined erasure coding policy 

Step : -

---------------
 * Create a Directory
 - Add 64 user-defined ec policies in the ID range of [64 to 127].Beyond that system will not allow 
 to add any more policy.
 - Enable an ec policy and the set it to the directory.
 - Disable the policy and check the state of the policy in -listPolicies
 -If the ec policy is in disable state ,system will not allow you to set it on any directory
 -Remove the ec policy and check the state of the policy in -listPolicies.
 Its just set the state as removed ,but the policy is still present in the list.
 -If the ec policy is in remove state,system will not allow you to set it on any directory
 - There is no difference between disable and remove state.
 -After adding 64 user-defined ec policies ,if an user wants to delete a policy which is not usable any more or not correctly added instead of that wants to add a new desired user-defined ec policy ,it can not be possible as no delete option is provided.Only remove policy option is given,which is not removing an user-defined policy,only set the policy state as removed.

Actual ouput :-
 
 No administrative command provided to delete an user defined erasure coding policy.With "-removePolicy" we can set a policy state as removed,we cann't delete the user-defined ec policy.After adding 64 user-defined ec policies,if a user wants to delete an policy and add a new desired policy,there is no administrative provision provided to perform this operation.
 
 Expected output :-
 
 Either "-removePolicy" should remove the user-defined ec policy ,instead of changing the policy state to removed only or administrative privilege should be provided to delete an user-defined ec policy.



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