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https://issues.apache.org/jira/browse/HDDS-13130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arafat Khan resolved HDDS-13130.
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Fix Version/s: 2.1.0
Resolution: Fixed
> Rename "diskUsage" Feature in Recon UI and Documentation to Avoid Misleading
> Users
> ----------------------------------------------------------------------------------
>
> Key: HDDS-13130
> URL: https://issues.apache.org/jira/browse/HDDS-13130
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Recon
> Reporter: Arafat Khan
> Assignee: Abhishek Pal
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.1.0
>
>
> The current "{*}diskUsage{*}" endpoint and feature in Recon are misleadingly
> named. Contrary to what the name suggests, this endpoint does *not* provide
> the actual disk usage statistics (as one would expect from a typical Linux
> {{du}} command). Instead, it iterates over the metadata in the OM database
> and builds a tree-like structure that provides a high-level overview of
> various OM DB namespace statistics, such as:
> * Quota space
> * Data size of directories
> * File and directory listing capabilities
> * File size distribution under directories and buckets
> This feature does *not* interact with the underlying filesystem to retrieve
> actual hard storage usage statistics for files and directories. Instead, it
> offers a "bird’s eye view" based on metadata only.
> *Reason for Change:*
> The name "diskUsage" can easily confuse users into believing it represents
> actual disk usage, similar to what they would get from running {{du}} or
> similar commands on a filesystem. To prevent this confusion and improve user
> experience and clarity, we want to rename this feature in the Recon UI, Recon
> documentation, and API documentation to better reflect its true functionality.
> *Tasks:*
> * Propose and finalize a new name that better represents this feature (e.g.,
> "Namespace Usage Overview", "Metadata Usage Explorer", etc.)
> * Update all instances of "diskUsage" in the Recon UI.
> * Update all references in the Recon and API documentation.
> * Update API endpoint names and descriptions as needed.
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