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https://issues.apache.org/jira/browse/HADOOP-3001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584985#action_12584985
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Chris Douglas commented on HADOOP-3001:
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Only two minor nits, but neither is pressing:
* It looks like you picked up a whitespace change to SequenceFileRecordReader
* The FileSystem.Statistics objects can be {{final}}
+1
> FileSystems should track how many bytes are read and written
> ------------------------------------------------------------
>
> Key: HADOOP-3001
> URL: https://issues.apache.org/jira/browse/HADOOP-3001
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Priority: Blocker
> Fix For: 0.17.0
>
> Attachments: 3001-2.patch, 3001-4.patch, 3001.patch
>
>
> It would be nice if the file systems could track the number of bytes read and
> written for each class of FileSystem. Map/Reduce could then report these
> numbers back as counters to provide information about how much data is read
> and written.
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