Hanisha Koneru created HDFS-11477:
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Summary: 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
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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