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https://issues.apache.org/jira/browse/HADOOP-19854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18078242#comment-18078242
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Anuj Modi commented on HADOOP-19854:
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Hi [~ppothnis] 
Sorry for the delay, we have been engaged in some priority work at our end.

[~manika137] did try to raise a backport PR for 3.4.3 but it has more dependent 
changes which are missing in that branch hence finding it difficult to backport.
Manual changes to an already released branch are not welcomed. I would suggest 
you to wait for the next official release to happen which will surely contain 
the fix. If wait is not possible on then I would suggest you either:
 # Upgrade your workspace to use the latest Hadoop version which has the fix 
i.e. 3.6.0-SNAPSHOT
 # Or manually pick the changes to your fork of hadoop, build and use it.

Let me know if you need any help in this matter.

> ABFS: Forced DFS Endpoint Usage Causes Failure on FNS-Blob Accounts with Soft 
> Delete Enabled
> --------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-19854
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19854
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>    Affects Versions: 3.5.0, 3.4.2, 3.4.3
>            Reporter: Manika Joshi
>            Assignee: Manika Joshi
>            Priority: Major
>              Labels: pull-request-available
>
> If _fs.azure.account.hns.enabled_ is not configured, ABFS driver issues a 
> getAcl call +using the DFS endpoint+ to detect the account type (HNS or FNS)
> For FNS Blob accounts with Soft Delete enabled, this behavior leads to 
> failures because the DFS endpoint used does not support Soft Delete semantics.
> Temporary fix is to explicitly set the configuration: 
> _fs.azure.account.hns.enabled_ so the redundant DFS-based detection is 
> bypassed and the issue does not occur.



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