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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