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https://issues.apache.org/jira/browse/HDFS-9576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15083539#comment-15083539
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Zhe Zhang commented on HDFS-9576:
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Good point [~iwasakims]! I should have traced the write length one level up --
the {{len}} variable in the public {{write}} method. This is to give insights
on applications' I/O behavior. E.g. if in a cluster most applications send
large write requests, certain optimizations can be made.
In the next rev I'll also try to trace the return value of read.
> HTrace: collect path/offset/length information on read and write operations
> ---------------------------------------------------------------------------
>
> Key: HDFS-9576
> URL: https://issues.apache.org/jira/browse/HDFS-9576
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs-client, tracing
> Affects Versions: 2.7.1
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
> Attachments: HDFS-9576.00.patch, HDFS-9576.01.patch
>
>
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