[AMBARI-24483] Timeline v2 HBase Does Start After Upgrade Due to Missing System Queue

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.1, 2.8.0
• Labels: pull-request-available
• Assignee: Jonathan Hurley
• Reporter: Jonathan Hurley
• Created: 15/Aug/18 13:01
• Updated: 20/Oct/22 07:27
• Resolved: 15/Aug/18 15:24

Description

During Upgrade

1. If cluster is big i.e >50GB and each machines has minimum 10GB resources
   • If yarn-system queue doesn't exist then we shall create a queue with zero capacity.
   • All the necessary setting for queue such as queue-priority, queue-acls, disabling pre-emption for this queue are set.
   • ats-hbase app queue name also set to yarn-system
   • But do NOT enable system service mode by default. Let upgrade happens in embedded mode successfully.
   • Post upgrade, admin can change flag to enable system_service mode if required by providing sufficient capacity to yarn-system queue. This step need to be documented.
2. If cluster is small
   • Continue upgrade in embedded mode without creating a yarn-system queue.

Issue Links

• links to: GitHub PR#3399
• links to: GitHub Pull Request #2079