Struct fred :: types :: ClusterRouting Copy item path

impl ClusterRouting

pub fn new() -> Self

Create a new empty routing table.

pub fn from_cluster_slots<S: Into<Str>>( value: RedisValue, default_host: S, ) -> Result<Self, RedisError>

Create a new routing table from the result of the CLUSTER SLOTS command.

The default_host value refers to the server that provided the response.

pub fn unique_hash_slots(&self) -> Vec<u16>

Read a set of unique hash slots that each map to a different primary/main node in the cluster.

pub fn unique_primary_nodes(&self) -> Vec<Server>

Read the set of unique primary nodes in the cluster.

pub fn hash_key(key: &[u8]) -> u16

Calculate the cluster hash slot for the provided key.

pub fn get_server(&self, slot: u16) -> Option<&Server>

Find the primary server that owns the provided hash slot.

pub fn replicas(&self, primary: &Server) -> Vec<Server>

Available on crate feature replicas only.

Read the replicas associated with the provided primary node based on the cached CLUSTER SLOTS response.

pub fn len(&self) -> usize

Read the number of hash slot ranges in the cluster.

pub fn slots(&self) -> &[SlotRange]

Read the hash slot ranges in the cluster.

pub fn random_slot(&self) -> Option<&SlotRange>

Read a random primary node hash slot range from the cluster cache.

pub fn random_node(&self) -> Option<&Server>

Read a random primary node from the cluster cache.

pub fn pretty(&self) -> BTreeMap<Server, (Vec<(u16, u16)>, BTreeSet<Server>)>

Print the contents of the routing table as a human-readable map.

Trait Implementations§

impl Clone for ClusterRouting

fn clone(&self) -> ClusterRouting

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for ClusterRouting

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl UnwindSafe for ClusterRouting

Blanket Implementations§

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where T: 'static + ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more