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https://issues.apache.org/jira/browse/HDFS-14505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17075246#comment-17075246
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Ayush Saxena commented on HDFS-14505:
-------------------------------------
Well honestly, I didn't understand the fix itself.
how is quota being ensured that it wont get violated post create? There is
mkdir for the parent too, if the parent doesn't exist and moreover quota should
be checked once only, if it is checked before during delete itself, it
shouldn't be checked in that case later...
> "touchz" command should check quota limit before deleting an already existing
> file
> ----------------------------------------------------------------------------------
>
> Key: HDFS-14505
> URL: https://issues.apache.org/jira/browse/HDFS-14505
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Shashikant Banerjee
> Assignee: hemanthboyina
> Priority: Major
> Attachments: HDFS-14505.001.patch
>
>
> {code:java}
> HW15685:bin sbanerjee$ ./hdfs dfs -ls /dir2
> 2019-05-21 15:14:01,080 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> Found 1 items
> -rw-r--r-- 1 sbanerjee hadoop 0 2019-05-21 15:10 /dir2/file4
> HW15685:bin sbanerjee$ ./hdfs dfs -touchz /dir2/file4
> 2019-05-21 15:14:12,247 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> touchz: The NameSpace quota (directories and files) of directory /dir2 is
> exceeded: quota=3 file count=5
> HW15685:bin sbanerjee$ ./hdfs dfs -ls /dir2
> 2019-05-21 15:14:20,607 WARN util.NativeCodeLoader: Unable to load
> native-hadoop library for your platform... using builtin-java classes where
> applicable
> {code}
> Here, the "touchz" command failed to create the file as the quota limit was
> hit, but ended up deleting the original file which existed. It should do the
> quota check before deleting the file so that after successful deletion,
> creation should succeed.
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