204 lines
6.4 KiB
Rust
204 lines
6.4 KiB
Rust
use std::sync::{Arc, RwLock};
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use opentelemetry::{global, metrics::*, KeyValue};
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use crate::system::{ClusterHealth, ClusterHealthStatus, 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) health: Arc<RwLock<Option<ClusterHealth>>>,
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// Static values
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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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// Disk space values from System::local_status
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pub(crate) _disk_avail: ValueObserver<u64>,
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pub(crate) _disk_total: ValueObserver<u64>,
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// Health report from System::health()
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pub(crate) _cluster_healthy: ValueObserver<u64>,
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pub(crate) _cluster_available: ValueObserver<u64>,
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pub(crate) _known_nodes: ValueObserver<u64>,
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pub(crate) _connected_nodes: ValueObserver<u64>,
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pub(crate) _storage_nodes: ValueObserver<u64>,
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pub(crate) _storage_nodes_ok: ValueObserver<u64>,
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pub(crate) _partitions: ValueObserver<u64>,
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pub(crate) _partitions_quorum: ValueObserver<u64>,
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pub(crate) _partitions_all_ok: ValueObserver<u64>,
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}
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impl SystemMetrics {
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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 health = Arc::new(RwLock::new(None));
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Self {
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health: health.clone(),
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// Static values
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_garage_build_info: meter
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.u64_value_observer("garage_build_info", move |observer| {
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observer.observe(
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1,
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&[
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KeyValue::new("rustversion", garage_util::version::rust_version()),
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KeyValue::new("version", garage_util::version::garage_version()),
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],
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)
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})
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.with_description("Garage build info")
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.init(),
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_replication_factor: meter
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.u64_value_observer("garage_replication_factor", move |observer| {
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observer.observe(replication_factor as u64, &[])
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})
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.with_description("Garage replication factor setting")
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.init(),
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// Disk space values from System::local_status
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_disk_avail: {
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let status = local_status.clone();
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meter
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.u64_value_observer("garage_local_disk_avail", move |observer| {
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let st = status.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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},
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_disk_total: {
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let status = local_status.clone();
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meter
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.u64_value_observer("garage_local_disk_total", move |observer| {
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let st = status.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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},
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// Health report from System::health()
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_cluster_healthy: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_healthy", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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if h.status == ClusterHealthStatus::Healthy {
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observer.observe(1, &[]);
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} else {
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observer.observe(0, &[]);
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}
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}
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})
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.with_description("Whether all storage nodes are connected")
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.init()
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},
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_cluster_available: {
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let health = health.clone();
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meter.u64_value_observer("cluster_available", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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if h.status != ClusterHealthStatus::Unavailable {
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observer.observe(1, &[]);
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} else {
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observer.observe(0, &[]);
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}
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}
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})
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.with_description("Whether all requests can be served, even if some storage nodes are disconnected")
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.init()
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},
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_known_nodes: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_known_nodes", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.known_nodes as u64, &[]);
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}
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})
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.with_description("Number of nodes already seen once in the cluster")
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.init()
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},
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_connected_nodes: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_connected_nodes", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.connected_nodes as u64, &[]);
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}
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})
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.with_description("Number of nodes currently connected")
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.init()
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},
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_storage_nodes: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_storage_nodes", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.storage_nodes as u64, &[]);
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}
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})
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.with_description("Number of storage nodes declared in the current layout")
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.init()
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},
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_storage_nodes_ok: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_storage_nodes_ok", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.storage_nodes_ok as u64, &[]);
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}
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})
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.with_description("Number of storage nodes currently connected")
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.init()
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},
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_partitions: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_partitions", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.partitions as u64, &[]);
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}
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})
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.with_description("Number of partitions in the layout")
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.init()
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},
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_partitions_quorum: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_partitions_quorum", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.partitions_quorum as u64, &[]);
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}
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})
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.with_description(
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"Number of partitions for which we have a quorum of connected nodes",
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)
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.init()
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},
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_partitions_all_ok: {
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let health = health.clone();
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meter
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.u64_value_observer("cluster_partitions_all_ok", move |observer| {
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if let Some(h) = health.read().unwrap().as_ref() {
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observer.observe(h.partitions_all_ok as u64, &[]);
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}
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})
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.with_description(
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"Number of partitions for which all storage nodes are connected",
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)
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.init()
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},
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}
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}
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}
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