Dmitry Lysnichenko created AMBARI-10466:
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Summary: RU TODO : Get rid of the UPGRADE_FORCE_DOWNGRADE property
Key: AMBARI-10466
URL: https://issues.apache.org/jira/browse/AMBARI-10466
Project: Ambari
Issue Type: Improvement
Components: ambari-server
Reporter: Dmitry Lysnichenko
Assignee: Dmitry Lysnichenko
Fix For: 2.1.0
org.apache.ambari.server.controller.internal.UpgradeResourceProvider
{code}
// TODO : Get rid of the UPGRADE_FORCE_DOWNGRADE property... should use
downgrade create directive
protected static final String UPGRADE_FORCE_DOWNGRADE =
"Upgrade/force_downgrade";
{code}
initailly there was an UPGRADE_FORCE_DOWNGRADE property for the upgrade
resource. This property would be set to true and passed in the body of a POST
to create an upgrade to indicate that the upgrade was really a downgrade. It
was suggested that instead of having a property on the resource that it would
be better to use a create directive of 'downgrade' in the POST when the
resource was first created. When I added the directive, I didn't immediately
remove the property since it would have broken the existing users (Ambari UI)
of the API. Instead I added the TODO.
Right now the code looks for the directive first and then checks for the
property. As long as nobody is still creating the upgrade resource with the
UPGRADE_FORCE_DOWNGRADE property, it should be safe to just remove it and the
little bit of related code.
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