Need to capture the metrics for the network ios generate by dfs reads/writes
and map/reduce shuffling and break them down by racks
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Key: HADOOP-3062
URL: https://issues.apache.org/jira/browse/HADOOP-3062
Project: Hadoop Core
Issue Type: Improvement
Components: metrics
Reporter: Runping Qi
In order to better understand the relationship between hadoop performance and
the network bandwidth, we need to know
what the aggregated traffic data in a cluster and its breakdown by racks. With
these data, we can determine whether the network
bandwidth is the bottleneck when certain jobs are running on a cluster.
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