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https://issues.apache.org/jira/browse/CHUKWA-13?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12693658#action_12693658
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Ari Rabkin commented on CHUKWA-13:
----------------------------------
Note that in the future, this should probably come with a modification to
CHANGES.txt, and also perhaps a release note.
> Support SQL macros in Chukwa Charting
> -------------------------------------
>
> Key: CHUKWA-13
> URL: https://issues.apache.org/jira/browse/CHUKWA-13
> Project: Hadoop Chukwa
> Issue Type: New Feature
> Environment: Redhat EL 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Blocker
> Attachments: CHUKWA-13.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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