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Date: Fri, 27 Mar 2009 10:40:50 -0700 (PDT)
From: "Ari Rabkin (JIRA)" <jira@apache.org>
To: chukwa-dev@hadoop.apache.org
Subject: [jira] Commented: (CHUKWA-13) Support SQL macros in Chukwa Charting
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    [ https://issues.apache.org/jira/browse/CHUKWA-13?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689978#action_12689978 ] 

Ari Rabkin commented on CHUKWA-13:
----------------------------------

It looks like the Macro class didn't make it into the patch...:(

> 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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