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use std::sync::Arc;
use opentelemetry::{global, metrics::*};
use tokio::sync::Semaphore;
/// TableMetrics reference all counter used for metrics
pub struct RpcMetrics {
pub(crate) _rpc_available_permits: ValueObserver<u64>,
pub(crate) rpc_counter: Counter<u64>,
pub(crate) rpc_timeout_counter: Counter<u64>,
pub(crate) rpc_netapp_error_counter: Counter<u64>,
pub(crate) rpc_garage_error_counter: Counter<u64>,
pub(crate) rpc_duration: ValueRecorder<f64>,
pub(crate) rpc_queueing_time: ValueRecorder<f64>,
}
impl RpcMetrics {
pub fn new(sem: Arc<Semaphore>) -> Self {
let meter = global::meter("garage_rpc");
RpcMetrics {
_rpc_available_permits: meter
.u64_value_observer("rpc.available_permits", move |observer| {
observer.observe(sem.available_permits() as u64, &[])
})
.with_description("Number of available RPC permits")
.init(),
rpc_counter: meter
.u64_counter("rpc.request_counter")
.with_description("Number of RPC requests emitted")
.init(),
rpc_timeout_counter: meter
.u64_counter("rpc.timeout_counter")
.with_description("Number of RPC timeouts")
.init(),
rpc_netapp_error_counter: meter
.u64_counter("rpc.netapp_error_counter")
.with_description("Number of communication errors (errors in the Netapp library)")
.init(),
rpc_garage_error_counter: meter
.u64_counter("rpc.garage_error_counter")
.with_description("Number of RPC errors (errors happening when handling the RPC)")
.init(),
rpc_duration: meter
.f64_value_recorder("rpc.duration")
.with_description("Duration of RPCs")
.init(),
rpc_queueing_time: meter
.f64_value_recorder("rpc.queueing_time")
.with_description("Time RPC requests were queued for before being sent")
.init(),
}
}
}
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