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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5274) Add Tracing to HDFS
Date Fri, 21 Feb 2014 22:33:26 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13908918#comment-13908918
] 

stack commented on HDFS-5274:
-----------------------------

bq. But I am afraid this could start a trend of capabilities hosted/attributed especially
to vendor companies making its way into Hadoop.

[~sureshms] I just got perms on this lib.  I'll go get a domain, convert the code package
names, make a new release, and publish to maven central... will report back when done.

> Add Tracing to HDFS
> -------------------
>
>                 Key: HDFS-5274
>                 URL: https://issues.apache.org/jira/browse/HDFS-5274
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, namenode
>    Affects Versions: 2.1.1-beta
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>         Attachments: HDFS-5274-0.patch, HDFS-5274-1.patch, HDFS-5274-2.patch, HDFS-5274-3.patch,
HDFS-5274-4.patch, HDFS-5274-5.patch, HDFS-5274-6.patch, HDFS-5274-7.patch, HDFS-5274-8.patch,
HDFS-5274-8.patch, Zipkin   Trace a06e941b0172ec73.png, Zipkin   Trace d0f0d66b8a258a69.png,
ss-5274v8-get.png, ss-5274v8-put.png
>
>
> Since Google's Dapper paper has shown the benefits of tracing for a large distributed
system, it seems like a good time to add tracing to HDFS.  HBase has added tracing using HTrace.
 I propose that the same can be done within HDFS.



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