Support SQL macros in Chukwa Charting
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Key: HADOOP-5398
URL: https://issues.apache.org/jira/browse/HADOOP-5398
Project: Hadoop Core
Issue Type: New Feature
Environment: Redhat EL 5.1, Java 6
Reporter: Eric Yang
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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