[AMBARI-10568] Rolling Restart: batch size is fixed and cannot be changed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.1.0
• Component/s: ambari-web
• Assignee: Aleksandr Kovalenko
• Reporter: Aleksandr Kovalenko
• Created: 17/Apr/15 14:09
• Updated: 17/Apr/15 16:23
• Resolved: 17/Apr/15 14:57

Description

Let the user set the batch size for datanodes > # of slaves and don't show the warning. If they do, it just restarts all. Always recommend "1", and if greater than 1 is entered, show the new warning "Restarting more than one DataNode at a time is not recommended. Doing so can lead to data unavailability and/or possible loss of data being actively written to HFDS".