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From "Lohit Vijayarenu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3577) Tools to inject blocks into name node and simulated data nodes for testing
Date Mon, 23 Jun 2008 19:04:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607347#action_12607347

Lohit Vijayarenu commented on HADOOP-3577:

test-patch result on my local box
 [exec] +1 overall.  
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]     +1 tests included.  The patch appears to include 15 new or modified tests.
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.

> Tools to inject blocks into name node and simulated data nodes for testing
> --------------------------------------------------------------------------
>                 Key: HADOOP-3577
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3577
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>            Priority: Minor
>             Fix For: 0.19.0
>         Attachments: inject.patch, inject2.patch, inject3.patch
> This jira adds the following 2 features to src/test
> 1) it extends DataNodeCluster to allow blocks to be injected for simulted data nodes.
> 2) a new command, CreatedEditsLog which creates an NN image edits logs that has a transactions
for new files. The edits log file can be copied to the NN's image.
> Using the two in conjunction one can inject a set of blocks in a NN and in a set of Datanodes
and use it for testing, for example a cluster of 3K DNs

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