[AMBARI-23127] Allow default value of number of parallel tasks run during Upgrade to be customizable

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.6.2
• Component/s: ambari-server
• Labels: pull-request-available
• Assignee: Siddharth Wagle
• Reporter: Siddharth Wagle
• Created: 01/Mar/18 22:13
• Updated: 02/Mar/18 19:41
• Resolved: 02/Mar/18 19:41

Description

On large clusters of 1000+ nodes the default value of 100 for max degree of parallelism results in Stop and Start command batches of 100 hosts and resulting operation taking longer because of the default batch size. This Jira adds a possible override through ambari.properties.

Property:

stack.upgrade.default.parallelism

Issue Links

• links to: GitHub Pull Request #522
• links to: GitHub Pull Request #523