Struct Migration 

pub struct Migration {
    pub id: MigrationId,
    pub slot: u16,
    pub source: NodeId,
    pub target: NodeId,
    pub state: MigrationState,
    pub started_at: Option<Instant>,
    pub keys_migrated: u64,
    pub keys_total: Option<u64>,
}

A single slot migration operation.

Fields

id: MigrationId

Unique migration identifier.

slot: u16

The slot being migrated.

source: NodeId

Node currently owning the slot.

target: NodeId

Node receiving the slot.

state: MigrationState

Current migration state.

started_at: Option<Instant>

When migration started.

keys_migrated: u64

Number of keys migrated so far.

keys_total: Option<u64>

Total keys to migrate (if known).

Implementations

impl Migration

pub fn new_importing(slot: u16, source: NodeId, target: NodeId) -> Self

Create a new migration in the importing state (target perspective).

pub fn new_migrating(slot: u16, source: NodeId, target: NodeId) -> Self

Create a new migration in the migrating state (source perspective).

pub fn involves(&self, node: &NodeId) -> bool

Check if this migration involves a specific node.

pub fn progress(&self) -> Option<u8>

Get progress as a percentage (0-100).

pub fn start_streaming(&mut self, total_keys: u64)

Transition to streaming state.

pub fn record_migrated(&mut self, count: u64)

Record migrated keys.

pub fn start_finalizing(&mut self)

Transition to finalizing state.

pub fn complete(&mut self)

Mark migration as complete.

Trait Implementations

impl Clone for Migration

fn clone(&self) -> Migration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Migration

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Migration

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Migration

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.