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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3577) Tools to inject blocks into name node and simulated data nodes for testing
Date Tue, 17 Jun 2008 04:49:45 GMT
Tools to inject blocks into name node and simulated data nodes for testing
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                 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


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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