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From "Hanisha Koneru (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11477) Simplify file IO profiling configuration
Date Fri, 03 Mar 2017 20:21:47 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hanisha Koneru updated HDFS-11477:
----------------------------------
    Attachment: HDFS-11477.003.patch

Thank you [~arpitagarwal] and [~andrew.wang].
I have updated the patch to take care of the issue (v03).
Between the jenkins runs for patch v1 and v2, there was a commit in trunk which used the Config
Key removed in this patch.

> 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,
HDFS-11477.003.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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