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From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3062) Need to capture the metrics for the network ios generate by dfs reads/writes and map/reduce shuffling and break them down by racks
Date Fri, 21 Mar 2008 05:31:25 GMT
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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