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https://issues.apache.org/jira/browse/HDFS-13772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena reassigned HDFS-13772:
-----------------------------------

    Assignee: Ayush Saxena

> Erasure coding: Unnecessary NameNode Logs displaying for Enabling/Disabling 
> Erasure coding policies which are already enabled/disabled
> --------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-13772
>                 URL: https://issues.apache.org/jira/browse/HDFS-13772
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: erasure-coding
>    Affects Versions: 3.0.0
>         Environment: 3 Node SuSE Linux cluster 
>            Reporter: Souryakanta Dwivedy
>            Assignee: Ayush Saxena
>            Priority: Trivial
>         Attachments: EC_capture1.PNG
>
>
> Unnecessary NameNode Logs displaying for Enabling/Disabling Erasure coding 
> policies which are already enabled/disabled
> - Enable any Erasure coding policy like "RS-LEGACY-6-3-1024k"
> - Check the console log display as "Erasure coding policy RS-LEGACY-6-3-1024k 
> is enabled"
> - Again try to enable the same policy multiple times "hdfs ec -enablePolicy 
> -policy RS-LEGACY-6-3-1024k"
>  instead of throwing error message as ""policy already enabled"" it will 
> display same messages as "Erasure coding policy RS-LEGACY-6-3-1024k is 
> enabled"
> - Also in NameNode log policy enabled logs are displaying multiple times 
> unnecessarily even though the policy is already enabled.
>  like this : 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Disable 
> the erasure coding policy RS-10-4-1024k
> 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Disable 
> the erasure coding policy RS-10-4-1024k
> 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Disable 
> the erasure coding policy RS-10-4-1024k
> 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Enable the 
> erasure coding policy RS-LEGACY-6-3-1024k
> 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Enable the 
> erasure coding policy RS-LEGACY-6-3-1024k
> 2018-07-27 18:50:35,084 INFO 
> org.apache.hadoop.hdfs.server.namenode.ErasureCodingPolicyManager: Enable the 
> erasure coding policy RS-LEGACY-6-3-1024k
> - While executing the Erasure coding policy disable command also same type of 
> logs coming multiple times even though the policy is already 
>  disabled.It should throw error message as ""policy is already disabled"" for 
> already disabled policy.



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