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https://issues.apache.org/jira/browse/HDFS-13530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16465409#comment-16465409
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maobaolong commented on HDFS-13530:
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[~liuhongtong] Thank you, this really worth to fix as soon as possible.
BTW, you can assign this ticket to yourself.
> NameNode: Fix NullPointerException when getQuotaUsageInt() invoked
> ------------------------------------------------------------------
>
> Key: HDFS-13530
> URL: https://issues.apache.org/jira/browse/HDFS-13530
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: federation, namenode
> Reporter: liuhongtong
> Priority: Major
> Attachments: HDFS-13530.001.patch
>
>
> If the directory is nonexistent, getQuotaUsage rpc call will run into
> NullPointerException throwed by
> FSDirStatAndListingOp.getQuotaUsageInt() .
> I think FSDirStatAndListingOp.getQuotaUsageInt() should throw
> FileNotFoundException when the directory is nonexistent.
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