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https://issues.apache.org/jira/browse/HADOOP-5398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang updated HADOOP-5398:
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Attachment: HADOOP-5398.patch
- Create a new Macro class for macro substitution.
- Changed Aggregator to use Macro class.
- Added macro substitution support to Chukwa Charting.
- Added Macro test case.
> Support SQL macros in Chukwa Charting
> -------------------------------------
>
> Key: HADOOP-5398
> URL: https://issues.apache.org/jira/browse/HADOOP-5398
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/chukwa
> Environment: Redhat EL 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-5398.patch
>
>
> In Chukwa Database aggregator, we could execute SQL statement which looks
> like:
> insert into [cluster_system_metrics] (select [avg(system_metrics)] from
> [system_metrics] where timestamp between [past_10_minutes] and [now]);
> This new feature is to bring macro language to HICC charting. The user can
> write statement like:
> select timestamp,host,load_5 from [system_metrics] where timestamp between
> [start] and [end];
> This statement will automatically expand to:
> select timestamp, host, load_5 from system_metrics_2045_week where timestamp
> between '2009-03-02 00:00:00' and '2009-03-03 00:00:00';
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