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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-567) Two contrib tools to facilitate searching for block history information
Date Thu, 17 Sep 2009 23:27:57 GMT

    [ https://issues.apache.org/jira/browse/HDFS-567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756847#action_12756847
] 

Suresh Srinivas commented on HDFS-567:
--------------------------------------

I noticed that the contrib is called corrupted_blocks. The name does not seem appropriate.
It needs to be changed to block_forensics. Also package o.a.h.corrupted_blocks needs to be
changed to o.a.h.blockforensics. The class BlocksLog could be renamed as BlockSearch.

> Two contrib tools to facilitate searching for block history information 
> ------------------------------------------------------------------------
>
>                 Key: HDFS-567
>                 URL: https://issues.apache.org/jira/browse/HDFS-567
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: tools
>    Affects Versions: 0.21.0
>            Reporter: Bill Zeller
>            Assignee: Bill Zeller
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: hdfs-567-1.patch, hdfs-567-2.patch, hdfs-567-3.patch, hdfs-567-4.patch,
hdfs-567-5.patch
>
>   Original Estimate: 5h
>  Remaining Estimate: 5h
>
> Includes a java program to query the namenode for corrupt replica information at some
interval. If a corrupt replica is found, a map reduce job is launched that will search (supplied)
log files for one or more block ids. The mapred job can be used independently of the java
client program and can also be used for arbitrary text searches. 

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