Struct NodeInfoKey

pub struct NodeInfoKey {
    pub cluster_id: ClusterId,
    pub role: Role,
    pub node_id: u64,
}

The key of NodeInfo in the storage. The format is __meta_cluster_node_info-{cluster_id}-{role}-{node_id}.

This key cannot be used to describe the Metasrv because the Metasrv does not have a cluster_id, it serves multiple clusters.

Fields

cluster_id: ClusterId

The cluster id.

role: Role

The role of the node. It can be [Role::Datanode] or [Role::Frontend].

node_id: u64

The node id.

Implementations

impl NodeInfoKey

pub fn key_prefix_with_cluster_id(cluster_id: u64) -> String

pub fn key_prefix_with_role(cluster_id: ClusterId, role: Role) -> String

Trait Implementations

impl Clone for NodeInfoKey

fn clone(&self) -> NodeInfoKey

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NodeInfoKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NodeInfoKey

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<NodeInfoKey> for Vec<u8>

fn from(key: NodeInfoKey) -> Self

Converts to this type from the input type.

impl FromStr for NodeInfoKey

type Err = Error

The associated error which can be returned from parsing.

fn from_str(key: &str) -> Result<Self>

Parses a string s to return a value of this type.

impl Hash for NodeInfoKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for NodeInfoKey

fn eq(&self, other: &NodeInfoKey) -> 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 NodeInfoKey

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Vec<u8>> for NodeInfoKey

type Error = Error

The type returned in the event of a conversion error.

fn try_from(bytes: Vec<u8>) -> Result<Self>

Performs the conversion.

impl Eq for NodeInfoKey

impl StructuralPartialEq for NodeInfoKey