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Posted to hdfs-dev@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2017/03/03 00:23:46 UTC
[jira] [Reopened] (HDFS-11477) Simplify file IO profiling
configuration
[ https://issues.apache.org/jira/browse/HDFS-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Wang reopened HDFS-11477:
--------------------------------
Reopening, I think this broke the build. I saw a DNConf error referring to a FILEIO config key, reverted this and it passed afterwards.
Precommit seems pretty messed up right now unfortunately :(
> 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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