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https://issues.apache.org/jira/browse/AMBARI-20847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15983711#comment-15983711
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Hudson commented on AMBARI-20847:
---------------------------------
SUCCESS: Integrated in Jenkins build Ambari-trunk-Commit #7354 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/7354/])
AMBARI-20847 - Remove Refresh Query Hint From Upgrade DAO (jhurley:
[http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=09ca4857986eb734b93b5862620a85c8bff7b691])
* (edit)
ambari-server/src/main/java/org/apache/ambari/server/orm/entities/UpgradeEntity.java
* (edit)
ambari-server/src/main/java/org/apache/ambari/server/orm/dao/UpgradeDAO.java
> 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
>
> Attachments: AMBARI-20847.patch
>
>
> 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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