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HDFS-17221. Add NNThroughputBenchmark params to specify subcluster lo… #6230

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HDFS-17221. Add NNThroughputBenchmark params to specify subcluster lo… #6230

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5 changes: 4 additions & 1 deletion hadoop-common-project/hadoop-common/src/site/markdown/Benchmarking.md
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Expand Up @@ -30,7 +30,10 @@ The benchmark first generates inputs for each thread so that the input generatio

The general command line syntax is:

`hadoop org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark [genericOptions] [commandOptions]`
`hadoop org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark [genericOptions] [commandOptions] .. [genericOptions] [commandOptions]`

Each genericOptions starts with `-op`. You may specify many commands in one run (each starting with `-op`).
Operations will run in parallel per `-baseDirName`. Separate statistics will be printed per `-baseDirName`.

#### Generic Options

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