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https://issues.apache.org/jira/browse/HDFS-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15036932#comment-15036932
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Konstantin Shvachko commented on HDFS-9436:
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{{numOpsRequired = 10}} and the {{nuDatanodes = 10}} implies that each DN sends
exactly one block report. I'd probably prefer a couple of block reports per DN
for better testing, but it's up to you.
Otherwise patch looks good.
> Make NNThroughputBenchmark$BlockReportStats run with 10 datanodes by default
> ----------------------------------------------------------------------------
>
> Key: HDFS-9436
> URL: https://issues.apache.org/jira/browse/HDFS-9436
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: test
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Priority: Minor
> Attachments: HDFS-9436.000.patch, HDFS-9436.001.patch
>
>
> This is a follow-up of [HDFS-9379].
> Though for actual benchmarking the defaults are rarely used, it would be good
> to change the default for {{numThreads}} as a >=10 value and may be
> {{numOpsRequired}} in {{BlockReportStats}} just to make sure the condition in
> [HDFS-9379] is tested in the future.
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