Enum RoutingChange 

pub enum RoutingChange {
    ReassignVShard {
        vshard_id: u32,
        new_group_id: u64,
        new_leaseholder_node_id: u64,
    },
    LeadershipTransfer {
        group_id: u64,
        new_leader_node_id: u64,
    },
    RemoveMember {
        group_id: u64,
        node_id: u64,
    },
}

Routing-table mutations proposed through the metadata group.

Variants

ReassignVShard

Move a vShard to a new raft group leaseholder.

Fields

vshard_id: u32

new_group_id: u64

new_leaseholder_node_id: u64

LeadershipTransfer

Record a leadership transfer within an existing group.

Fields

group_id: u64

new_leader_node_id: u64

RemoveMember

Remove a node from a Raft group’s member and learner sets.

Used by the decommission flow to strip a draining node out of every group it belongs to. Proposing this is only safe once safety::check_can_decommission has confirmed the group will still satisfy the configured replication factor.

Fields

group_id: u64

node_id: u64

Trait Implementations

impl Clone for RoutingChange

fn clone(&self) -> RoutingChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoutingChange

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RoutingChange

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'__msgpack_de> FromMessagePack<'__msgpack_de> for RoutingChange

fn read<R: Read<'__msgpack_de>>(reader: &mut R) -> Result<Self, Error>

where Self: Sized,

Reads the MessagePack representation of this value from the provided reader.

impl PartialEq for RoutingChange

fn eq(&self, other: &RoutingChange) -> 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 Serialize for RoutingChange

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToMessagePack for RoutingChange

fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error>

Writes the MessagePack representation of this value into the provided writer.

impl Eq for RoutingChange

impl StructuralPartialEq for RoutingChange