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https://issues.apache.org/jira/browse/HDFS-5274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13907816#comment-13907816
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stack commented on HDFS-5274:
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[~iwasakims] Thanks. When you are done, I'll try hooking it up w/ hbase to
make sure we get a trace that spans the two systems.
[~sureshms] Wouldn't adding htrace to the common pom.xml make it "...available
in Hadoop common"? Thanks.
> 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, Zipkin Trace a06e941b0172ec73.png, Zipkin Trace
> d0f0d66b8a258a69.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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