forked from Deuxfleurs/garage
[peer-metrics] refactor/simplify SystemMetrics
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0b9859befa
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00d479358d
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0E496D15096376BE
2 changed files with 41 additions and 88 deletions
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@ -3,11 +3,9 @@ use std::collections::HashMap;
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use std::io::{Read, Write};
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use std::net::{IpAddr, SocketAddr};
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use std::path::{Path, PathBuf};
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use std::sync::atomic::Ordering;
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use std::sync::{Arc, RwLock};
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use std::time::{Duration, Instant};
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use arc_swap::ArcSwap;
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use async_trait::async_trait;
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use futures::join;
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use serde::{Deserialize, Serialize};
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@ -88,7 +86,7 @@ pub struct System {
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persist_cluster_layout: Persister<ClusterLayout>,
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persist_peer_list: Persister<PeerList>,
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local_status: ArcSwap<NodeStatus>,
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local_status: Arc<RwLock<NodeStatus>>,
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node_status: RwLock<HashMap<Uuid, (u64, NodeStatus)>>,
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pub netapp: Arc<NetApp>,
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@ -106,7 +104,7 @@ pub struct System {
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#[cfg(feature = "kubernetes-discovery")]
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kubernetes_discovery: Option<KubernetesDiscoveryConfig>,
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metrics: SystemMetrics,
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_metrics: SystemMetrics,
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replication_mode: ReplicationMode,
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replication_factor: usize,
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@ -280,10 +278,11 @@ impl System {
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}
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};
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let metrics = SystemMetrics::new(replication_factor);
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let mut local_status = NodeStatus::initial(replication_factor, &cluster_layout);
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local_status.update_disk_usage(&config.metadata_dir, &config.data_dir, &metrics);
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local_status.update_disk_usage(&config.metadata_dir, &config.data_dir);
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let local_status = Arc::new(RwLock::new(local_status));
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let metrics = SystemMetrics::new(replication_factor, local_status.clone());
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let ring = Ring::new(cluster_layout, replication_factor);
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let (update_ring, ring) = watch::channel(Arc::new(ring));
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@ -357,7 +356,7 @@ impl System {
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id: netapp.id.into(),
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persist_cluster_layout,
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persist_peer_list,
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local_status: ArcSwap::new(Arc::new(local_status)),
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local_status,
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node_status: RwLock::new(HashMap::new()),
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netapp: netapp.clone(),
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peering: peering.clone(),
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@ -377,7 +376,7 @@ impl System {
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consul_discovery,
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#[cfg(feature = "kubernetes-discovery")]
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kubernetes_discovery: config.kubernetes_discovery.clone(),
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metrics,
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_metrics: metrics,
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ring,
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update_ring: Mutex::new(update_ring),
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@ -546,12 +545,9 @@ impl System {
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}
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};
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let hostname = self.local_status.read().unwrap().hostname.clone();
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if let Err(e) = c
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.publish_consul_service(
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self.netapp.id,
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&self.local_status.load_full().hostname,
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rpc_public_addr,
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)
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.publish_consul_service(self.netapp.id, &hostname, rpc_public_addr)
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.await
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{
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error!("Error while publishing Consul service: {}", e);
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@ -573,13 +569,8 @@ impl System {
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}
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};
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if let Err(e) = publish_kubernetes_node(
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k,
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self.netapp.id,
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&self.local_status.load_full().hostname,
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rpc_public_addr,
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)
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.await
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let hostname = self.local_status.read().unwrap().hostname.clone();
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if let Err(e) = publish_kubernetes_node(k, self.netapp.id, &hostname, rpc_public_addr).await
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{
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error!("Error while publishing node to Kubernetes: {}", e);
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}
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@ -596,15 +587,13 @@ impl System {
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}
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fn update_local_status(&self) {
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let mut new_si: NodeStatus = self.local_status.load().as_ref().clone();
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let mut local_status = self.local_status.write().unwrap();
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let ring = self.ring.borrow();
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new_si.cluster_layout_version = ring.layout.version;
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new_si.cluster_layout_staging_hash = ring.layout.staging_hash;
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local_status.cluster_layout_version = ring.layout.version;
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local_status.cluster_layout_staging_hash = ring.layout.staging_hash;
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new_si.update_disk_usage(&self.metadata_dir, &self.data_dir, &self.metrics);
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self.local_status.swap(Arc::new(new_si));
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local_status.update_disk_usage(&self.metadata_dir, &self.data_dir);
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}
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// --- RPC HANDLERS ---
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@ -629,7 +618,7 @@ impl System {
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from: Uuid,
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info: &NodeStatus,
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) -> Result<SystemRpc, Error> {
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let local_info = self.local_status.load();
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let local_info = self.local_status.read().unwrap();
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if local_info.replication_factor < info.replication_factor {
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error!("Some node have a higher replication factor ({}) than this one ({}). This is not supported and will lead to data corruption. Shutting down for safety.",
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@ -644,6 +633,8 @@ impl System {
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tokio::spawn(self.clone().pull_cluster_layout(from));
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}
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drop(local_info);
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self.node_status
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.write()
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.unwrap()
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@ -708,7 +699,7 @@ impl System {
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let restart_at = Instant::now() + STATUS_EXCHANGE_INTERVAL;
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self.update_local_status();
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let local_status: NodeStatus = self.local_status.load().as_ref().clone();
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let local_status: NodeStatus = self.local_status.read().unwrap().clone();
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let _ = self
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.rpc
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.broadcast(
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@ -893,12 +884,7 @@ impl NodeStatus {
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}
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}
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fn update_disk_usage(
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&mut self,
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meta_dir: &Path,
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data_dir: &DataDirEnum,
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metrics: &SystemMetrics,
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) {
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fn update_disk_usage(&mut self, meta_dir: &Path, data_dir: &DataDirEnum) {
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use nix::sys::statvfs::statvfs;
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let mount_avail = |path: &Path| match statvfs(path) {
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Ok(x) => {
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@ -934,27 +920,6 @@ impl NodeStatus {
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)
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})(),
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};
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if let Some((avail, total)) = self.meta_disk_avail {
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metrics
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.values
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.meta_disk_avail
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.store(avail, Ordering::Relaxed);
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metrics
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.values
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.meta_disk_total
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.store(total, Ordering::Relaxed);
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}
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if let Some((avail, total)) = self.data_disk_avail {
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metrics
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.values
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.data_disk_avail
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.store(avail, Ordering::Relaxed);
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metrics
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.values
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.data_disk_total
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.store(total, Ordering::Relaxed);
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}
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}
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}
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@ -1,31 +1,22 @@
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use std::sync::atomic::{AtomicU64, Ordering};
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use std::sync::Arc;
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use std::sync::{Arc, RwLock};
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use opentelemetry::{global, metrics::*, KeyValue};
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use crate::system::NodeStatus;
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/// TableMetrics reference all counter used for metrics
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pub struct SystemMetrics {
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pub(crate) _garage_build_info: ValueObserver<u64>,
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pub(crate) _replication_factor: ValueObserver<u64>,
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pub(crate) _disk_avail: ValueObserver<u64>,
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pub(crate) _disk_total: ValueObserver<u64>,
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pub(crate) values: Arc<SystemMetricsValues>,
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}
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#[derive(Default)]
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pub struct SystemMetricsValues {
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pub(crate) data_disk_total: AtomicU64,
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pub(crate) data_disk_avail: AtomicU64,
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pub(crate) meta_disk_total: AtomicU64,
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pub(crate) meta_disk_avail: AtomicU64,
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}
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impl SystemMetrics {
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pub fn new(replication_factor: usize) -> Self {
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pub fn new(replication_factor: usize, local_status: Arc<RwLock<NodeStatus>>) -> Self {
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let meter = global::meter("garage_system");
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let values = Arc::new(SystemMetricsValues::default());
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let values1 = values.clone();
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let values2 = values.clone();
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let st1 = local_status.clone();
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let st2 = local_status.clone();
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Self {
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_garage_build_info: meter
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.u64_value_observer("garage_build_info", move |observer| {
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@ -47,31 +38,28 @@ impl SystemMetrics {
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.init(),
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_disk_avail: meter
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.u64_value_observer("garage_local_disk_avail", move |observer| {
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match values1.data_disk_avail.load(Ordering::Relaxed) {
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0 => (),
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x => observer.observe(x, &[KeyValue::new("volume", "data")]),
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};
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match values1.meta_disk_avail.load(Ordering::Relaxed) {
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0 => (),
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x => observer.observe(x, &[KeyValue::new("volume", "metadata")]),
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};
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let st = st1.read().unwrap();
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if let Some((avail, _total)) = st.data_disk_avail {
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observer.observe(avail, &[KeyValue::new("volume", "data")]);
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}
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if let Some((avail, _total)) = st.meta_disk_avail {
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observer.observe(avail, &[KeyValue::new("volume", "metadata")]);
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}
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})
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.with_description("Garage available disk space on each node")
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.init(),
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_disk_total: meter
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.u64_value_observer("garage_local_disk_total", move |observer| {
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match values2.data_disk_total.load(Ordering::Relaxed) {
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0 => (),
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x => observer.observe(x, &[KeyValue::new("volume", "data")]),
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};
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match values2.meta_disk_total.load(Ordering::Relaxed) {
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0 => (),
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x => observer.observe(x, &[KeyValue::new("volume", "metadata")]),
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};
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let st = st2.read().unwrap();
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if let Some((_avail, total)) = st.data_disk_avail {
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observer.observe(total, &[KeyValue::new("volume", "data")]);
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}
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if let Some((_avail, total)) = st.meta_disk_avail {
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observer.observe(total, &[KeyValue::new("volume", "metadata")]);
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}
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})
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.with_description("Garage total disk space on each node")
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.init(),
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values,
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}
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}
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}
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