[AMBARI-18680] Add orchestration for HOST_ORDERED upgrades

• Type: Task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.5.0
• Component/s: ambari-server
• Epic Link: Ambari: Support for Offline Stack Upgrades
• Assignee: Nate Cole
• Reporter: Nate Cole
• Created: 24/Oct/16 15:36
• Updated: 04/Nov/16 15:25
• Resolved: 04/Nov/16 15:25

Description

Orchestration via UpgradeHelper need to orchestrate via HOSTS instead of the UpgradePack services. This will entail:

• Refactor UpgradeHelper to choose orchestration model
• Upgrade Pack changes are minimal, StageWrapper and Manual tasks are generated in-code.
• Determine service check changes (if any)
• HostGrouping should use the following stages per-host:
  1. Stop command for each component
  2. Manual message to ask to proceed
  3. install_packages task - ONE per host. The purpose is to make sure all the symlink logic already in place is called correctly
  4. START commands for daemons, INSTALL commands for clients, just as a new cluster would do.

Issue Links

• blocks: AMBARI-18681 Add host structured_out to manual task