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https://issues.apache.org/jira/browse/HDFS-1189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13022434#comment-13022434
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Hudson commented on HDFS-1189:
------------------------------
Integrated in Hadoop-Hdfs-trunk #643 (See
[https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/643/])
> Quota counts missed between clear quota and set quota
> -----------------------------------------------------
>
> Key: HDFS-1189
> URL: https://issues.apache.org/jira/browse/HDFS-1189
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Reporter: Kang Xiao
> Assignee: John George
> Labels: hdfs, quota
> Fix For: 0.20.204.0, 0.21.1, Federation Branch, 0.22.0, 0.23.0
>
> Attachments: HDFS-1189-for_20.204.patch, HDFS-1189-for_20.204.patch,
> HDFS-1189.patch, HDFS-1189.patch, HDFS-1189.patch, hdfs-1189-1.patch
>
>
> HDFS Quota counts will be missed between a clear quota operation and a set
> quota.
> When setting quota for a dir, the INodeDirectory will be replaced by
> INodeDirectoryWithQuota and dir.isQuotaSet() becomes true. When
> INodeDirectoryWithQuota is newly created, quota counting will be performed.
> However, when clearing quota, the quota conf is set to -1 and
> dir.isQuotaSet() becomes false while INodeDirectoryWithQuota will NOT be
> replaced back to INodeDirectory.
> FSDirectory.updateCount just update the quota count for inodes that
> isQuotaSet() is true. So after clear quota for a dir, its quota counts will
> not be updated and it's reasonable. But when re seting quota for this dir,
> quota counting will not be performed and some counts will be missed.
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