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https://issues.apache.org/jira/browse/HDFS-13785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572786#comment-16572786
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Vinayakumar B commented on HDFS-13785:
--------------------------------------
+1,
Committed to trunk.
bq. HDFSErasureCoding.md: Remove an User Defined erasure coding policy. should
be lower case for consistency. (e.g. Remove an user defined erasure coding
policy.)
Handled this nit before commit. Test failure and asflicense errors are
unrelated to this change.
Thanks [~ayushtkn] for the contribution, [~SouryakantaDwivedy] for reporting
the issue, [~jojochuang] and [~xiaochen] for reviews.
> 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
> Fix For: 3.2.0
>
> Attachments: HDFS-13785-01.patch, HDFS-13785-02.patch,
> HDFS-13785-03.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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