releaseMarginPercent

How far below a limit a resource has to fall before the node accepts work again.

Without a margin a resource resting on its limit crosses it in both directions on the noise between two readings, taking the node in and out of service each time and restarting any shard recovery with it. Leave it unset to keep the server's default rather than pinning a number a later Qdrant may want to revise; 0 releases as soon as usage is back under the limit.