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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5986) Capture the number of blocks pending deletion on namenode webUI
Date Fri, 07 Mar 2014 07:19:44 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HDFS-5986:
--------------------------------

    Attachment: HDFS-5986.1.patch

This patch adds the pending deletion count to the FSNamesystemState mbean and displays it
in the web UI right underneath the count of under-replicated blocks.

> 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
>            Reporter: Suresh Srinivas
>            Assignee: Chris Nauroth
>         Attachments: 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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