[BROOKLYN-212] Auto-scaling in finite BYON cluster keeps adding on-fire entities

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Assignee: Unassigned
• Reporter: Aled Sage
• Created: 06/Jan/16 14:01
• Updated: 27/Apr/17 22:28
• Resolved: 27/Apr/17 22:28

Description

When using a BYON location of a limited size (e.g. four vagrant VMs), if an auto-scaler policy tries to resize above this number of VMs then it goes badly wrong!

Auto-scaling causes a new entity to be added to the cluster, but it fails to start because the location.obtain() call fails. That entity is left in quarantine, on-fire.

The auto-scaler will then try again: another new entity is added, but this also fails. This repeats, adding more and more entities.