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https://issues.apache.org/jira/browse/HDDS-7121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17625222#comment-17625222
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Siyao Meng commented on HDDS-7121:
----------------------------------

Cherry-picked to [1.3.0|https://github.com/apache/ozone/commits/ozone-1.3] 
(oops I forgot to append {{--no-verify}} to ignore my gerrit hook so a 
Change-Id is appended to the commit message.. will try to do that next time)

> Support namespace summaries (du, dist & counts) for legacy FS buckets
> ---------------------------------------------------------------------
>
>                 Key: HDDS-7121
>                 URL: https://issues.apache.org/jira/browse/HDDS-7121
>             Project: Apache Ozone
>          Issue Type: Sub-task
>            Reporter: Christos Bisias
>            Assignee: Christos Bisias
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.3.0, 1.4.0
>
>
> Support has been added in Recon to track namespace summaries for FSO backed 
> data. From HDDS-5362, a bucket has a 'type' according to which how it stores 
> it underlying data varies. The existing NamespaceSummary task already works 
> only for FSO buckets since it tracks updates into only the FILE and DIRECTORY 
> tables.
> In this JIRA, we can add a task that listens on KEY table, and tracks 
> summaries for Legacy FS buckets. 
> *Note :* Based on whether the object updated has a trailing {*}/{*}, the task 
> can determine if it is a directory and create summaries at that level just 
> like the existing task does.
> cc [~smeng]



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