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https://issues.apache.org/jira/browse/HDFS-11722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15990976#comment-15990976
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Arpit Agarwal commented on HDFS-11722:
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Also can you please update
{{hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md}} which
still refers to sampling fraction:
{code}
Per-volume metrics contain Datanode Volume IO related statistics. Per-volume
metrics are off by default. They can be enabled by setting `dfs.datanode
.fileio.profiling.sampling.fraction` to a fraction between 0.0 and 1.0.
{code}
> Change Datanode file IO profiling sampling to percentage
> --------------------------------------------------------
>
> Key: HDFS-11722
> URL: https://issues.apache.org/jira/browse/HDFS-11722
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Attachments: HDFS-11722.001.patch
>
>
> Datanode disk IO profiling sampling is controlled by the setting
> _dfs.datanode.fileio.profiling.sampling.fraction_. Instead of fraction, we
> can a percentage value to make it easier to set.
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