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https://issues.apache.org/jira/browse/HDFS-5986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth resolved HDFS-5986.
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Resolution: Fixed
Fix Version/s: 2.4.0
3.0.0
Hadoop Flags: Reviewed
I committed this patch to trunk, branch-2 and branch-2.4.
> Capture the number of blocks pending deletion on namenode webUI
> ---------------------------------------------------------------
>
> Key: HDFS-5986
> URL: https://issues.apache.org/jira/browse/HDFS-5986
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Suresh Srinivas
> Assignee: Chris Nauroth
> Fix For: 3.0.0, 2.4.0
>
> Attachments: HDFS-5986-screenshot.png, HDFS-5986.1.patch
>
>
> When a directory that has large number of directories and files are deleted,
> the namespace deletes the corresponding inodes immediately. However it is
> hard to to know when the invalidated blocks are actually deleted on the
> datanodes, which could take a while.
> I propose adding on namenode webUI, along with under replicated blocks, the
> number of blocks that are pending deletion.
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