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use std::sync::atomic::{AtomicU64, Ordering};
use std::sync::Arc;
use opentelemetry::{global, metrics::*, KeyValue};
/// 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>,
pub(crate) values: Arc<SystemMetricsValues>,
}
#[derive(Default)]
pub struct SystemMetricsValues {
pub(crate) data_disk_total: AtomicU64,
pub(crate) data_disk_avail: AtomicU64,
pub(crate) meta_disk_total: AtomicU64,
pub(crate) meta_disk_avail: AtomicU64,
}
impl SystemMetrics {
pub fn new(replication_factor: usize) -> Self {
let meter = global::meter("garage_system");
let values = Arc::new(SystemMetricsValues::default());
let values1 = values.clone();
let values2 = values.clone();
Self {
_garage_build_info: meter
.u64_value_observer("garage_build_info", move |observer| {
observer.observe(
1,
&[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| {
match values1.data_disk_avail.load(Ordering::Relaxed) {
0 => (),
x => observer.observe(x, &[KeyValue::new("volume", "data")]),
};
match values1.meta_disk_avail.load(Ordering::Relaxed) {
0 => (),
x => observer.observe(x, &[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| {
match values2.data_disk_total.load(Ordering::Relaxed) {
0 => (),
x => observer.observe(x, &[KeyValue::new("volume", "data")]),
};
match values2.meta_disk_total.load(Ordering::Relaxed) {
0 => (),
x => observer.observe(x, &[KeyValue::new("volume", "metadata")]),
};
})
.with_description("Garage total disk space on each node")
.init(),
values,
}
}
}
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