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https://issues.apache.org/jira/browse/HDFS-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893248#comment-15893248
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Arpit Agarwal edited comment on HDFS-11477 at 3/2/17 11:51 PM:
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Thanks [~hanishakoneru]. +1.
was (Author: arpitagarwal):
Thanks [~hanishakoneru]. +1 pending Jenkins.
> Simplify file IO profiling configuration
> ----------------------------------------
>
> 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
> Fix For: 2.9.0, 3.0.0-alpha3
>
> 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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