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https://issues.apache.org/jira/browse/HDFS-8898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ming Ma updated HDFS-8898:
--------------------------
Attachment: HDFS-8898-2.patch
Here is the updated patch with new unit tests. Another change in the updated
patch is to have {{ContentSummary}} reuse {{QuotaUsage}} structure given they
have lots of overlaps. I have manually verified that existing applications
compiled with the old ContentSummary will still work with the new binary
without recompilation. Procobuf definition for these two structures remain
separate.
> Create API and command-line argument to get quota without need to get file
> and directory counts
> -----------------------------------------------------------------------------------------------
>
> Key: HDFS-8898
> URL: https://issues.apache.org/jira/browse/HDFS-8898
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fs
> Reporter: Joep Rottinghuis
> Attachments: HDFS-8898-2.patch, HDFS-8898.patch
>
>
> On large directory structures it takes significant time to iterate through
> the file and directory counts recursively to get a complete ContentSummary.
> When you want to just check for the quota on a higher level directory it
> would be good to have an option to skip the file and directory counts.
> Moreover, currently one can only check the quota if you have access to all
> the directories underneath. For example, if I have a large home directory
> under /user/joep and I host some files for another user in a sub-directory,
> the moment they create an unreadable sub-directory under my home I can no
> longer check what my quota is. Understood that I cannot check the current
> file counts unless I can iterate through all the usage, but for
> administrative purposes it is nice to be able to get the current quota
> setting on a directory without the need to iterate through and run into
> permission issues on sub-directories.
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