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https://issues.apache.org/jira/browse/HDFS-5098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13745308#comment-13745308
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Colin Patrick McCabe commented on HDFS-5098:
--------------------------------------------
You can get the local read and short-circuit statistics for each input stream
from {{HdfsDataInputStream#getReadStatistics}}. This was added by HDFS-4698.
Any objections to marking this as a duplicate of HDFS-4698, which added this
feature?
> Enhance FileSystem.Statistics to have locality information
> ----------------------------------------------------------
>
> Key: HDFS-5098
> URL: https://issues.apache.org/jira/browse/HDFS-5098
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Bikas Saha
> Fix For: 2.1.1-beta
>
>
> Currently in MR/Tez we dont have a good and accurate means to detect how much
> the the IO was actually done locally. Getting this information from the
> source of truth would be much better.
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