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https://issues.apache.org/jira/browse/HADOOP-5051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677448#action_12677448
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Jerome Boulon commented on HADOOP-5051:
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+1
If the goal is to extend the macro language it may be good to look at a
template engine like Velocity for example.
> hdfs throughput calculation is incorrect in chukwa database
> -----------------------------------------------------------
>
> Key: HADOOP-5051
> URL: https://issues.apache.org/jira/browse/HADOOP-5051
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/chukwa
> Environment: Redhat 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-5051-1.patch
>
>
> 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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