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https://issues.apache.org/jira/browse/HDFS-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hanisha Koneru updated HDFS-11477:
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Attachment: HDFS-11477.002.patch
Added Log statements in patch v02.
> Combine FileIO Profiling Enable and Sampling Fraction Config Key into one
> -------------------------------------------------------------------------
>
> Key: HDFS-11477
> URL: https://issues.apache.org/jira/browse/HDFS-11477
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Minor
> Attachments: HDFS-11477.000.patch, HDFS-11477.001.patch,
> HDFS-11477.002.patch
>
>
> For Profiling FileIO events, there are 2 keys:
> - DFS_DATANODE_ENABLE_FILEIO_PROFILING_KEY for enabling the hooks
> - DFS_DATANODE_FILEIO_PROFILING_SAMPLING_FRACTION_KEY for setting the
> sampling fraction
> We can instead have only the sampling fraction key and set it to 0 if we want
> to disable profiling.
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