[AMBARI-13424] Allow disabling RU/EU PreChecks

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.2
• Component/s: ambari-web

Environment

Ambari 2.1.2, upgrading HDP 2.2.8 to 2.3.0.0.
Single CentOS VM running Ambari Server and Ambari Agent 2.1.2, and HDP.
Only hdfs, zookeeper and ambari metrics components are installed.
The cluster has no NameNode HA enabled.

• Assignee: Alejandro Fernandez
• Reporter: Robert Ketcherside
• Created: 14/Oct/15 19:54
• Updated: 24/Feb/16 21:04
• Resolved: 24/Feb/16 20:04

Description

In some environments, the customer still wants to proceed with RU & EU even if PreChecks fail. E.g.,
NameNode HA doesn't actually exist if they have their own distribution of HDFS
Hosts be down at the time the upgrade is starting, but will come online during the upgrade.

Today, they are unable to start RU/EU if any of the PreChecks fail.
Introduce a config in ambari.properties file called "stack.upgrade.bypass.prechecks" whose default value is "false"

Issue Links

• links to: Review Board patch