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https://issues.apache.org/jira/browse/HDFS-13528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16469716#comment-16469716
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Xiaoyu Yao commented on HDFS-13528:
-----------------------------------

{quote}I have observed one more scenario, when destination directory of a mount 
entry is not present in the file system it is throwing NPE and quota refresh is 
not happening for rest of the entries.
{quote}
[~dibyendu_hadoop], the NPE issue of getQuotaUsage on non-existing directory 
has also been reported in HDFS-13530 and will be fixed. 

Will the RBF quota refresh issue still exist after that?

> RBF: If a directory exceeds quota limit then quota usage is not refreshed for 
> other mount entries 
> --------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-13528
>                 URL: https://issues.apache.org/jira/browse/HDFS-13528
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Dibyendu Karmakar
>            Assignee: Dibyendu Karmakar
>            Priority: Major
>         Attachments: HDFS-13528-000.patch
>
>
> If quota limit is exceeded, RouterQuotaUpdateService#periodicInvoke is 
> getting QuotaExceededException and it is not updating the quota usage for 
> rest of the mount table entries.



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