NameNode benchmark using mapred is insufficient
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Key: HADOOP-763
URL: http://issues.apache.org/jira/browse/HADOOP-763
Project: Hadoop
Issue Type: Improvement
Components: test
Affects Versions: 0.8.0
Reporter: Nigel Daley
Assigned To: Nigel Daley
Priority: Minor
The current namenode benchmark (org.apache.hadoop.examples.NNBench) uses
map/reduce to distribute a load on the namenode. For the purposes of loading
the namenode, this model gives insufficient control over job start and failure
recovery. I propose the namenode benchmark be re-written to use slaves.sh
directly to execute the namenode benchmark. The benchmark should also give
finer control over the operations executed and the timings reported.
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