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https://issues.apache.org/jira/browse/HDFS-13785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572141#comment-16572141
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Wei-Chiu Chuang commented on HDFS-13785:
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Patch looks good. Would you please also update TestErasureCodingCLI? This test
verifies the output string of ec commands and it failed as a result of the
message change.
> EC: "removePolicy" is not working for built-in/system Erasure Code policies
> ---------------------------------------------------------------------------
>
> Key: HDFS-13785
> URL: https://issues.apache.org/jira/browse/HDFS-13785
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation, erasure-coding
> Affects Versions: 3.0.0
> Environment: 3 Node SUSE Linux Cluster
> Reporter: Souryakanta Dwivedy
> Assignee: Ayush Saxena
> Priority: Minor
> Attachments: HDFS-13785-01.patch, HDFS-13785-02.patch
>
>
> EC: "removePolicy" is not working for built-in/system Erasure Code policies
> - Check the existing built-in EC policies with command "hdfs ec -listPolicies"
> - try to remove any of the EC policies,it will throw error message as
> "RemoteException: System erasure coding policy RS-3-2-1024k cannot be removed"
> - add user-defined EC policies
> - Try to remove any user-defined policy,it will be removed successfully
> - But in help option it is specified as :
> vm1:/opt/client/install/hadoop/namenode/bin> ./hdfs ec -help removePolicy
> [-removePolicy -policy <policy>]
> Remove an erasure coding policy.
> <policy> The name of the erasure coding policy
> vm1:/opt/client/install/hadoop/namenode/bin>
> Actual result :-
> hdfs ec -removePolicy not working for built-in/system EC policies ,where as
> usage description
> provided as "Remove an erasure coding policy".throwing exception as :
> "RemoteException: System erasure coding policy RS-3-2-1024k cannot be removed"
> Expected output : Either EC "removePolicy" option should be applicable for
> all type of EC policies
> Or it has to be specified in usage that EC "removePolicy" will be applicable
> to remove
> only user-defined EC policies, not applicable for system EC coding policies.
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