Struct ConsistentHashRing 

pub struct ConsistentHashRing { /* private fields */ }

Consistent hash ring for stable partition assignment.

Virtual nodes (vnodes) per physical node are proportional to weight.

Implementations

impl ConsistentHashRing

pub fn new(vnodes_per_weight: u32) -> Self

Create a new ring with the given vnode density.

pub fn add_node(&mut self, node: ClusterNode)

Add a node to the ring.

pub fn remove_node(&mut self, node_id: &str)

Remove a node from the ring.

pub fn get_node(&self, key: &[u8]) -> Option<&ClusterNode>

Look up the responsible node for a given key.

pub fn node_count(&self) -> usize

Return the number of physical nodes.

pub fn vnode_count(&self) -> usize

Return the total number of virtual nodes in the ring.