Aravindan Vijayan created AMBARI-20773:
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Summary: AMS: Schema changes for nextGen feature support
Key: AMBARI-20773
URL: https://issues.apache.org/jira/browse/AMBARI-20773
Project: Ambari
Issue Type: Epic
Components: ambari-metrics
Affects Versions: 3.0.0
Reporter: Aravindan Vijayan
Assignee: Aravindan Vijayan
Priority: Critical
Fix For: 3.0.0
Presently, AMS stores (metricName, hostname, serverTime, appId, instanceId) for
every row.
Although this makes SQL query easy to write, it adds duplication when storing
it in the Regions memory.
This epic is used to track the investigation and implementation of a unique
integer ID for an application-instance metric on a host and use that as a
lookup table with a write through cache when inserting or reading data in the
METRIC_RECORD table.
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