Scylla Rust Driver Load balancing Round robin

Round robin¶

The simplest load balancing policy available.
Takes all nodes in the cluster and uses them one after another.\

For example if there are nodes A, B, C in the cluster, this policy will use A, B, C, A, B, …

Example¶

To use this policy in Session:

# extern crate scylla;
# use scylla::Session;
# use std::error::Error;
# async fn check_only_compiles() -> Result<(), Box<dyn Error>> {
use scylla::{Session, SessionBuilder};
use scylla::transport::load_balancing::RoundRobinPolicy;
use std::sync::Arc;

let session: Session = SessionBuilder::new()
    .known_node("127.0.0.1:9042")
    .load_balancing(Arc::new(RoundRobinPolicy::new()))
    .build()
    .await?;
# Ok(())
# }