Jonathan Hurley created AMBARI-20847:
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Summary: Remove Refresh Query Hint From Upgrade DAO
Key: AMBARI-20847
URL: https://issues.apache.org/jira/browse/AMBARI-20847
Project: Ambari
Issue Type: Task
Components: ambari-server
Affects Versions: 2.4.0
Reporter: Jonathan Hurley
Assignee: Jonathan Hurley
Priority: Critical
Fix For: 2.5.1
Repeated requests to the {{org.apache.ambari.server.orm.dao.UpgradeDAO}}
methods during upgrades can cause large delays retrieving active upgrades. This
is because the {{QueryHint.REFRESH}} is being used in almost every method. This
causes a re-read on every {{UpgradeEntity -> UpgradeGroupEntity ->
UpgradeItemEntity}} in the entire database for every query.
These query hints should be removed.
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