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https://issues.apache.org/jira/browse/HDFS-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893456#comment-15893456
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Hudson commented on HDFS-11477:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11335 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/11335/])
Revert "HDFS-11477. Simplify file IO profiling configuration. (wang: rev
8f4817f2c5524c1891a3b3b50e396dd4ca294a2d)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeVolumeMetrics.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/tools/TestHdfsConfigFields.java
* (edit) hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/ProfilingFileIoEvents.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/FileIoProvider.java
> 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
> 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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