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https://issues.apache.org/jira/browse/HDFS-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12776226#action_12776226
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Hairong Kuang commented on HDFS-761:
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+1 The patch looks good.
> Failure to process rename operation from edits log due to quota verification
> ----------------------------------------------------------------------------
>
> Key: HDFS-761
> URL: https://issues.apache.org/jira/browse/HDFS-761
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.20.2, 0.21.0, 0.22.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Fix For: 0.20.2, 0.21.0, 0.22.0
>
> Attachments: hdfs-761.1.patch, hdfs-761.1.rel20.patch,
> hdfs-761.patch, hdfs-761.rel20.patch
>
>
> When processing edits log, quota verification is not done and the used quota
> for directories is not updated. The update is done at the end of processing
> edits log. This rule is broken by change introduced in HDFS-677. This causes
> namenode from handling rename operation from edits log due to quota
> verification failure. Once this happens, namenode does not proceed edits log
> any further. This results in check point failure on backup node or secondary
> namenode. This also prevents namenode from coming up.
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