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use std::sync::{Arc, RwLock};
use opentelemetry::{global, metrics::*, KeyValue};
use crate::system::NodeStatus;
/// TableMetrics reference all counter used for metrics
pub struct SystemMetrics {
pub(crate) _garage_build_info: ValueObserver<u64>,
pub(crate) _replication_factor: ValueObserver<u64>,
pub(crate) _disk_avail: ValueObserver<u64>,
pub(crate) _disk_total: ValueObserver<u64>,
}
impl SystemMetrics {
pub fn new(replication_factor: usize, local_status: Arc<RwLock<NodeStatus>>) -> Self {
let meter = global::meter("garage_system");
let st1 = local_status.clone();
let st2 = local_status.clone();
Self {
_garage_build_info: meter
.u64_value_observer("garage_build_info", move |observer| {
observer.observe(
1,
&[
KeyValue::new("rustversion", garage_util::version::rust_version()),
KeyValue::new("version", garage_util::version::garage_version()),
],
)
})
.with_description("Garage build info")
.init(),
_replication_factor: meter
.u64_value_observer("garage_replication_factor", move |observer| {
observer.observe(replication_factor as u64, &[])
})
.with_description("Garage replication factor setting")
.init(),
_disk_avail: meter
.u64_value_observer("garage_local_disk_avail", move |observer| {
let st = st1.read().unwrap();
if let Some((avail, _total)) = st.data_disk_avail {
observer.observe(avail, &[KeyValue::new("volume", "data")]);
}
if let Some((avail, _total)) = st.meta_disk_avail {
observer.observe(avail, &[KeyValue::new("volume", "metadata")]);
}
})
.with_description("Garage available disk space on each node")
.init(),
_disk_total: meter
.u64_value_observer("garage_local_disk_total", move |observer| {
let st = st2.read().unwrap();
if let Some((_avail, total)) = st.data_disk_avail {
observer.observe(total, &[KeyValue::new("volume", "data")]);
}
if let Some((_avail, total)) = st.meta_disk_avail {
observer.observe(total, &[KeyValue::new("volume", "metadata")]);
}
})
.with_description("Garage total disk space on each node")
.init(),
}
}
}
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