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https://issues.apache.org/jira/browse/HDFS-17039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729684#comment-17729684
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Steve Loughran commented on HDFS-17039:
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there's a CSV writer in
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/auth/delegation/Csvout.java
> CSV output support for NNThroughputBenchmark
> --------------------------------------------
>
> Key: HDFS-17039
> URL: https://issues.apache.org/jira/browse/HDFS-17039
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: benchmarks, test
> Reporter: Mark Bukhner
> Priority: Minor
>
> Now the NNThroughputBenchmark has only console result output, i use this
> benchmark a lot and it's more convenient to have ability to write benchmark
> results in csv file.
> This change add BenchmarkOutputWriter class, which prints any benchmark
> results in csv file, this entity could work with any benchmark. To implement
> this feature in benchmark, @Parameter annotation was added in benchmark
> fields.
> I think this option very helpful for community
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