[AMBARI-5676] Perf: Transition from Install Options to Confirm Hosts took several minutes with browser completely hung with 2000 nodes

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.6.1
• Component/s: ambari-web
• Assignee: Andrii Tkach
• Reporter: Andrii Tkach
• Created: 06/May/14 10:44
• Updated: 06/May/14 10:47
• Resolved: 06/May/14 10:47

Description

Used SSH registration option to bootstrap 2000 hosts.
After hitting next on the Install Options page and clicking on the "OK" button for the confirmation popup for host expression expansion, the browser totally hung for 2 minutes and 40 seconds.
Chrome prompted me to wait or kill the script in between.