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https://issues.apache.org/jira/browse/HDFS-17190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17765260#comment-17765260
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ASF GitHub Bot commented on HDFS-17190:
---------------------------------------

hadoop-yetus commented on PR #6067:
URL: https://github.com/apache/hadoop/pull/6067#issuecomment-1719784383

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
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> EC: Fix bug of OIV processing XAttr.
> ------------------------------------
>
>                 Key: HDFS-17190
>                 URL: https://issues.apache.org/jira/browse/HDFS-17190
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Shuyan Zhang
>            Priority: Major
>              Labels: pull-request-available
>
> When we need to use OIV to print EC information for a directory, 
> `PBImageTextWriter#getErasureCodingPolicyName` will be called. Currently, 
> this method uses `XATTR_ERASURECODING_POLICY.contains(xattr.getName())` to 
> filter and obtain EC XAttr, which is very dangerous. If we have an XAttr 
> whose name happens to be a substring of `hdfs.erasurecoding.policy`, then 
> `getErasureCodingPolicyName` will return the wrong result. Our internal 
> production environment has customized some XAttrs, and this bug caused errors 
> in the parsing results of OIV when using `-ec` option. 



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