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https://issues.apache.org/jira/browse/HADOOP-5051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang updated HADOOP-5051:
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Attachment: HADOOP-5051.patch
- Added ability to expand sum(table) macro into SQL statement.
- Change SQL statement to calculate rate for individual datanode, then
aggregate the cluster throughput from datanode rates.
> 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
> Environment: Redhat 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-5051.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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