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https://issues.apache.org/jira/browse/HADOOP-5060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676043#action_12676043
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Jerome Boulon commented on HADOOP-5060:
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Should be able to compute recursive aggregation in one pass based on the key:
ex: Aggregation Key = ABCD => ABC,AB, A should automatically be computed
Real AVG will be compute at the minute level, approximation will be done for
5,10,30, etc aggregation periods
> Create a generic aggregator for Chukwa
> --------------------------------------
>
> Key: HADOOP-5060
> URL: https://issues.apache.org/jira/browse/HADOOP-5060
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/chukwa
> Reporter: Jerome Boulon
> Assignee: Jerome Boulon
>
> Create a generic way to compute aggregation on top of chukwaRecords based on
> a config file
> Should be able:
> - work on several Chukwa streams
> - To aggregate by time period
> - Group by values for specific keys
> - Provide a redefine list of functions (AVG,MIN,MAX,Counter->Rate
> conversion...)
> - work with new functions
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