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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5051) hdfs throughput calculation is incorrect in chukwa database
Date Thu, 15 Jan 2009 17:58:59 GMT
hdfs throughput calculation is incorrect in chukwa database
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                 Key: HADOOP-5051
                 URL: https://issues.apache.org/jira/browse/HADOOP-5051
             Project: Hadoop Core
          Issue Type: Bug
         Environment: Redhat 5.1, Java 6
            Reporter: Eric Yang


The SQL statement to calculate hdfs throughput is incorrect.  The correct algorithm is to
calculate metrics rate for individual datanode then sum up of all datanode's rate to get the
total throughput for the cluster.

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