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Elliott Clark updated HDFS-5274: -------------------------------- Attachment: HDFS-5274-6.patch Here's a patch that adds annotations for DFSInputStream.seek > 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, > 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. -- This message was sent by Atlassian JIRA (v6.1#6144)