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authorAlex Auvolat <alex@adnab.me>2023-01-26 15:30:36 +0100
committerAlex Auvolat <alex@adnab.me>2023-01-26 15:30:36 +0100
commitc7d0ad0aa0e492b913c5dda8ff1a7ad5a579fb3a (patch)
tree77a3bab6c1a68ace9591ea737274c3a47b0a690b
parentefb6b6e868be1be0725125485810ce96e74ed124 (diff)
downloadgarage-report-disk-usage.tar.gz
garage-report-disk-usage.zip
Add local disk usage to exported prometheus metricsreport-disk-usage
-rw-r--r--src/rpc/lib.rs6
-rw-r--r--src/rpc/system.rs37
-rw-r--r--src/rpc/system_metrics.rs44
3 files changed, 75 insertions, 12 deletions
diff --git a/src/rpc/lib.rs b/src/rpc/lib.rs
index a8cc0030..5aec92c0 100644
--- a/src/rpc/lib.rs
+++ b/src/rpc/lib.rs
@@ -3,6 +3,9 @@
#[macro_use]
extern crate tracing;
+mod metrics;
+mod system_metrics;
+
#[cfg(feature = "consul-discovery")]
mod consul;
#[cfg(feature = "kubernetes-discovery")]
@@ -13,9 +16,6 @@ pub mod replication_mode;
pub mod ring;
pub mod system;
-mod metrics;
pub mod rpc_helper;
pub use rpc_helper::*;
-
-pub mod system_metrics;
diff --git a/src/rpc/system.rs b/src/rpc/system.rs
index a9e91e19..e0ced8cc 100644
--- a/src/rpc/system.rs
+++ b/src/rpc/system.rs
@@ -3,6 +3,7 @@ use std::collections::HashMap;
use std::io::{Read, Write};
use std::net::{IpAddr, SocketAddr};
use std::path::{Path, PathBuf};
+use std::sync::atomic::Ordering;
use std::sync::{Arc, RwLock};
use std::time::{Duration, Instant};
@@ -38,7 +39,6 @@ use crate::replication_mode::*;
use crate::ring::*;
use crate::rpc_helper::*;
-#[cfg(feature = "metrics")]
use crate::system_metrics::*;
const DISCOVERY_INTERVAL: Duration = Duration::from_secs(60);
@@ -106,7 +106,7 @@ pub struct System {
consul_discovery: Option<ConsulDiscovery>,
#[cfg(feature = "kubernetes-discovery")]
kubernetes_discovery: Option<KubernetesDiscoveryConfig>,
- #[cfg(feature = "metrics")]
+
metrics: SystemMetrics,
replication_mode: ReplicationMode,
@@ -281,12 +281,11 @@ impl System {
}
};
- let mut local_status = NodeStatus::initial(replication_factor, &cluster_layout);
- local_status.update_disk_usage(&config.metadata_dir, &config.data_dir);
-
- #[cfg(feature = "metrics")]
let metrics = SystemMetrics::new(replication_factor);
+ let mut local_status = NodeStatus::initial(replication_factor, &cluster_layout);
+ local_status.update_disk_usage(&config.metadata_dir, &config.data_dir, &metrics);
+
let ring = Ring::new(cluster_layout, replication_factor);
let (update_ring, ring) = watch::channel(Arc::new(ring));
@@ -377,7 +376,6 @@ impl System {
consul_discovery,
#[cfg(feature = "kubernetes-discovery")]
kubernetes_discovery: config.kubernetes_discovery.clone(),
- #[cfg(feature = "metrics")]
metrics,
ring,
@@ -601,7 +599,7 @@ impl System {
new_si.cluster_layout_version = ring.layout.version;
new_si.cluster_layout_staging_hash = ring.layout.staging_hash;
- new_si.update_disk_usage(&self.metadata_dir, &self.data_dir);
+ new_si.update_disk_usage(&self.metadata_dir, &self.data_dir, &self.metrics);
self.local_status.swap(Arc::new(new_si));
}
@@ -892,7 +890,7 @@ impl NodeStatus {
}
}
- fn update_disk_usage(&mut self, meta_dir: &Path, data_dir: &Path) {
+ fn update_disk_usage(&mut self, meta_dir: &Path, data_dir: &Path, metrics: &SystemMetrics) {
use systemstat::{Platform, System};
let mounts = System::new().mounts().unwrap_or_default();
@@ -906,6 +904,27 @@ impl NodeStatus {
self.meta_disk_avail = mount_avail(meta_dir);
self.data_disk_avail = mount_avail(data_dir);
+
+ if let Some((avail, total)) = self.meta_disk_avail {
+ metrics
+ .values
+ .meta_disk_avail
+ .store(avail, Ordering::Relaxed);
+ metrics
+ .values
+ .meta_disk_total
+ .store(total, Ordering::Relaxed);
+ }
+ if let Some((avail, total)) = self.data_disk_avail {
+ metrics
+ .values
+ .data_disk_avail
+ .store(avail, Ordering::Relaxed);
+ metrics
+ .values
+ .data_disk_total
+ .store(total, Ordering::Relaxed);
+ }
}
}
diff --git a/src/rpc/system_metrics.rs b/src/rpc/system_metrics.rs
index d96b67e4..83f5fa97 100644
--- a/src/rpc/system_metrics.rs
+++ b/src/rpc/system_metrics.rs
@@ -1,14 +1,31 @@
+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| {
@@ -28,6 +45,33 @@ impl SystemMetrics {
})
.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,
}
}
}