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https://issues.apache.org/jira/browse/HADOOP-3577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607347#action_12607347
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Lohit Vijayarenu commented on HADOOP-3577:
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test-patch result on my local box
[exec] +1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] +1 tests included. The patch appears to include 15 new or
modified tests.
[exec]
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
warnings.
[exec]
> 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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