Aravindan Vijayan created AMBARI-21214:
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Summary: Use a uuid vs long row key for metrics in AMS schema
Key: AMBARI-21214
URL: https://issues.apache.org/jira/browse/AMBARI-21214
Project: Ambari
Issue Type: Bug
Components: ambari-metrics
Affects Versions: 3.0.0
Reporter: Aravindan Vijayan
Assignee: Aravindan Vijayan
Fix For: 3.0.0
Presently we store (metircName, 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.
We should have 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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