Enum MigrationReason 

pub enum MigrationReason {
    TooOld,
    UnderAccessed,
    Oversized,
    Undersized,
    PolicyChange,
    Manual,
}

Reason code explaining why a migration was triggered.

Variants

TooOld

Block has not been accessed within the policy’s max_age_ms window.

UnderAccessed

Block’s cumulative access count is below min_access_count.

Oversized

Block is too large for the current tier (max_block_size_bytes exceeded).

Undersized

Block is too small for the current tier (min_block_size_bytes not met).

PolicyChange

An explicit policy change was applied — re-evaluation required.

Manual

Migration was requested manually (e.g. operator command).

Trait Implementations

impl Clone for MigrationReason

fn clone(&self) -> MigrationReason

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MigrationReason

impl Debug for MigrationReason

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

Formats the value using the given formatter.

impl Display for MigrationReason

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

Formats the value using the given formatter.

impl Eq for MigrationReason

impl PartialEq for MigrationReason

fn eq(&self, other: &MigrationReason) -> 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 StructuralPartialEq for MigrationReason