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https://issues.apache.org/jira/browse/HDFS-5274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Elliott Clark updated HDFS-5274:
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Attachment: HDFS-5274-0.patch
Here's an initial implementation of the tracing. Some more annotations and
instrumentation could be added if needed.
> 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
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HDFS-5274-0.patch
>
>
> 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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