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https://issues.apache.org/jira/browse/HADOOP-5625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12695623#action_12695623
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Brian Bockelman commented on HADOOP-5625:
-----------------------------------------
Hi,
This patch is useful for us to do timing statistics on our cluster - without
it, we can't tell how many MB/s we're doing via pure HDFS.
Compiles and works for me -- tests pass. Don't know what the Hudson failure is
from.
Brian
> Add I/O duration time in client trace
> --------------------------------------
>
> Key: HADOOP-5625
> URL: https://issues.apache.org/jira/browse/HADOOP-5625
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.19.1
> Reporter: Lei Xu
> Assignee: Lei Xu
> Priority: Minor
> Fix For: 0.21.0
>
> Attachments: duration.patch
>
>
> Add I/O duration information into client trace log for analyzing performance.
>
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