Enum PoolSizingRecommendation 

#[non_exhaustive]
pub enum PoolSizingRecommendation {
    Stable,
    RecommendScaleUp {
        new_size: u32,
        reason: String,
    },
    RecommendScaleDown {
        new_size: u32,
        reason: String,
    },
}

Recommendation produced by PoolSizingAdvisor::evaluate.

RecommendScaleUp and RecommendScaleDown are recommendations, not executed actions. Whether they are applied depends on whether a resize_fn was configured in PoolSizingAdvisor::start. Without a resize_fn, decisions are logged at INFO level only — no actual pool resize occurs.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Stable

Pool size is appropriate. No action needed.

RecommendScaleUp

Pool should be grown to new_size connections.

Applied only if a resize_fn was configured; otherwise logged as an advisory.

Fields

new_size: u32

New target pool size.

reason: String

Human-readable reason for the recommendation.

RecommendScaleDown

Pool should be shrunk to new_size connections.

Applied only if a resize_fn was configured; otherwise logged as an advisory.

Fields

new_size: u32

New target pool size.

reason: String

Human-readable reason for the recommendation.

Trait Implementations

impl Debug for PoolSizingRecommendation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for PoolSizingRecommendation

fn eq(&self, other: &PoolSizingRecommendation) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for PoolSizingRecommendation

impl StructuralPartialEq for PoolSizingRecommendation