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Type:
Bug
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Status: Open
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Priority:
Minor
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Resolution: Unresolved
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Affects Version/s: 7.5, 7.6
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Fix Version/s: 8.2, master (9.0)
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Component/s: AutoScaling
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Labels:None
The free disk variable based suggester can stop generating suggestions too early because it short circuits the suggestion loop after the first node that results in a violation (or increases the violation).
This is further exacerbated by the fact that the replicas in each node are evaluated in the order of index size ascending which causes the smallest replicas to be considered first. If a violation happens in moving this small replica then the larger replicas are never even considered for a move.
We should consider all possibilities here and stop short circuiting on a violation.