[SOLR-13124] Free disk based suggestions do not guard against running out of disk

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 7.5, 7.6
• Fix Version/s: 8.2, 9.0
• Component/s: AutoScaling
• Assignee: Unassigned
• Reporter: Shalin Shekhar Mangar
• Created: 07/Jan/19 10:20
• Updated: 12/May/22 00:26
• Resolved: 14/Aug/21 01:33

Description

I have seen instances where free disk based optimization suggestions can go overboard and cause too many cores to be moved to a disk causing it to go out of disk space. At the end of the suggestions, the computed freedisk goes negative. We need to add a guard during suggestion computation to prevent this.