rsbalancer

A rust library that implements load balancing algorithms.

• round robin
• weighted round robin(like nginx)
• random
• consistent hashing

Installation

shell cargo add rsbalancer

Usage

Weighted round robin

```rust use rsbalancer::Node;

fn main() { let mut balancer = rsbalancer::weightedroundrobin(vec![ Node::new("ip1", 1), // ip、weight Node::new("ip2", 1), Node::new("ip3", 2), ]);

for _ in 0..10 {
    println!("{}", balancer.next_id().unwrap());
}

} ```

Consistent hashing

```rust use rsbalancer::Node;

fn main() { // number of virtual nodes = node.weight * replicas let balancer = rsbalancer::consistenthashing( vec![ Node::new("ip1".tostring(), 1), // ip、weight Node::new("ip2".tostring(), 1), Node::new("ip3".tostring(), 1), ], 160, //replicas );

for random_ip in 0..10 {
    println!(
        "{} == {}",
        balancer
            .get_matching_node_id(&random_ip.to_string())
            .unwrap(),
        balancer
            .get_matching_node(&random_ip.to_string())
            .unwrap()
            .get_id()
    );
}

}

```