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https://issues.apache.org/jira/browse/HADOOP-3938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12625547#action_12625547
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Raghu Angadi commented on HADOOP-3938:
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Patch for diskspace quotas is attached.
It works very similar to name space quotas implemented in HADOOP-3187 and
[design
document|https://issues.apache.org/jira/secure/attachment/12383512/QuotasDesign2.pdf]
attached applies to this jira as well.
Description of "Space quotas" in the admin guide attached pretty much serves as
the spec.
DFSClient is modified so that it throws the actual exception (including
QuotaExceededException) when these exception occurs in other threads (most of
the time).
TestQuota.java tests space quotas as well.
Currently there are differences in dfsadmin command names. will fix them.
> Quotas for disk space management
> --------------------------------
>
> Key: HADOOP-3938
> URL: https://issues.apache.org/jira/browse/HADOOP-3938
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: Robert Chansler
> Assignee: Raghu Angadi
> Fix For: 0.19.0
>
> Attachments: HADOOP-3938.patch, hdfs_quota_admin_guide.pdf,
> hdfs_quota_admin_guide.xml
>
>
> Directory quotas for bytes limit the number of bytes used by files in and
> below the directory. Operation is independent of name quotas (HADOOP-3187),
> but the implementation is parallel. Each file is charged according to its
> length multiplied by its intended replication factor.
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