Driver metrics | ScyllaDB Docs

Driver metrics¶

During operation the driver collects various metrics.

They can be accessed at any moment using Session::get_metrics()

Collected metrics:¶

Query latencies
Total number of nonpaged queries
Number of errors during nonpaged queries
Total number of paged queries
Number of errors during paged queries
Number of retries

Example¶

let metrics = session.get_metrics();

println!("Queries requested: {}", metrics.get_queries_num());
println!("Iter queries requested: {}", metrics.get_queries_iter_num());
println!("Errors occurred: {}", metrics.get_errors_num());
println!("Iter errors occurred: {}", metrics.get_errors_iter_num());
println!("Average latency: {}", metrics.get_latency_avg_ms().unwrap());
println!(
    "99.9 latency percentile: {}",
    metrics.get_latency_percentile_ms(99.9).unwrap()
);