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-rw-r--r--src/garage/admin.rs125
-rw-r--r--src/garage/cli/cmd.rs15
-rw-r--r--src/garage/cli/structs.rs5
-rw-r--r--src/rpc/Cargo.toml1
-rw-r--r--src/rpc/lib.rs6
-rw-r--r--src/rpc/system.rs102
-rw-r--r--src/rpc/system_metrics.rs44
7 files changed, 257 insertions, 41 deletions
diff --git a/src/garage/admin.rs b/src/garage/admin.rs
index 305c5c65..4eabebca 100644
--- a/src/garage/admin.rs
+++ b/src/garage/admin.rs
@@ -15,6 +15,7 @@ use garage_util::time::*;
use garage_table::replication::*;
use garage_table::*;
+use garage_rpc::ring::PARTITION_BITS;
use garage_rpc::*;
use garage_block::manager::BlockResyncErrorInfo;
@@ -783,6 +784,7 @@ impl AdminRpcHandler {
for node in ring.layout.node_ids().iter() {
let mut opt = opt.clone();
opt.all_nodes = false;
+ opt.skip_global = true;
writeln!(&mut ret, "\n======================").unwrap();
writeln!(&mut ret, "Stats for node {:?}:", node).unwrap();
@@ -799,6 +801,15 @@ impl AdminRpcHandler {
Err(e) => writeln!(&mut ret, "Network error: {}", e).unwrap(),
}
}
+
+ writeln!(&mut ret, "\n======================").unwrap();
+ write!(
+ &mut ret,
+ "Cluster statistics:\n\n{}",
+ self.gather_cluster_stats()
+ )
+ .unwrap();
+
Ok(AdminRpc::Ok(ret))
} else {
Ok(AdminRpc::Ok(self.gather_stats_local(opt)?))
@@ -819,22 +830,6 @@ impl AdminRpcHandler {
writeln!(&mut ret, "\nDatabase engine: {}", self.garage.db.engine()).unwrap();
- // Gather ring statistics
- let ring = self.garage.system.ring.borrow().clone();
- let mut ring_nodes = HashMap::new();
- for (_i, loc) in ring.partitions().iter() {
- for n in ring.get_nodes(loc, ring.replication_factor).iter() {
- if !ring_nodes.contains_key(n) {
- ring_nodes.insert(*n, 0usize);
- }
- *ring_nodes.get_mut(n).unwrap() += 1;
- }
- }
- writeln!(&mut ret, "\nRing nodes & partition count:").unwrap();
- for (n, c) in ring_nodes.iter() {
- writeln!(&mut ret, " {:?} {}", n, c).unwrap();
- }
-
// Gather table statistics
let mut table = vec![" Table\tItems\tMklItems\tMklTodo\tGcTodo".into()];
table.push(self.gather_table_stats(&self.garage.bucket_table, opt.detailed)?);
@@ -881,12 +876,108 @@ impl AdminRpcHandler {
.unwrap();
if !opt.detailed {
- writeln!(&mut ret, "\nIf values are missing (marked as NC), consider adding the --detailed flag - this will be slow.").unwrap();
+ writeln!(&mut ret, "\nIf values are missing above (marked as NC), consider adding the --detailed flag (this will be slow).").unwrap();
+ }
+
+ if !opt.skip_global {
+ write!(&mut ret, "\n{}", self.gather_cluster_stats()).unwrap();
}
Ok(ret)
}
+ fn gather_cluster_stats(&self) -> String {
+ let mut ret = String::new();
+
+ // Gather storage node and free space statistics
+ let layout = &self.garage.system.ring.borrow().layout;
+ let mut node_partition_count = HashMap::<Uuid, u64>::new();
+ for short_id in layout.ring_assignation_data.iter() {
+ let id = layout.node_id_vec[*short_id as usize];
+ *node_partition_count.entry(id).or_default() += 1;
+ }
+ let node_info = self
+ .garage
+ .system
+ .get_known_nodes()
+ .into_iter()
+ .map(|n| (n.id, n))
+ .collect::<HashMap<_, _>>();
+
+ let mut table = vec![" ID\tHostname\tZone\tCapacity\tPart.\tDataAvail\tMetaAvail".into()];
+ for (id, parts) in node_partition_count.iter() {
+ let info = node_info.get(id);
+ let status = info.map(|x| &x.status);
+ let role = layout.roles.get(id).and_then(|x| x.0.as_ref());
+ let hostname = status.map(|x| x.hostname.as_str()).unwrap_or("?");
+ let zone = role.map(|x| x.zone.as_str()).unwrap_or("?");
+ let capacity = role.map(|x| x.capacity_string()).unwrap_or("?".into());
+ let avail_str = |x| match x {
+ Some((avail, total)) => {
+ let pct = (avail as f64) / (total as f64) * 100.;
+ let avail = bytesize::ByteSize::b(avail);
+ let total = bytesize::ByteSize::b(total);
+ format!("{}/{} ({:.1}%)", avail, total, pct)
+ }
+ None => "?".into(),
+ };
+ let data_avail = avail_str(status.and_then(|x| x.data_disk_avail));
+ let meta_avail = avail_str(status.and_then(|x| x.meta_disk_avail));
+ table.push(format!(
+ " {:?}\t{}\t{}\t{}\t{}\t{}\t{}",
+ id, hostname, zone, capacity, parts, data_avail, meta_avail
+ ));
+ }
+ write!(
+ &mut ret,
+ "Storage nodes:\n{}",
+ format_table_to_string(table)
+ )
+ .unwrap();
+
+ let meta_part_avail = node_partition_count
+ .iter()
+ .filter_map(|(id, parts)| {
+ node_info
+ .get(id)
+ .and_then(|x| x.status.meta_disk_avail)
+ .map(|c| c.0 / *parts)
+ })
+ .collect::<Vec<_>>();
+ let data_part_avail = node_partition_count
+ .iter()
+ .filter_map(|(id, parts)| {
+ node_info
+ .get(id)
+ .and_then(|x| x.status.data_disk_avail)
+ .map(|c| c.0 / *parts)
+ })
+ .collect::<Vec<_>>();
+ if !meta_part_avail.is_empty() && !data_part_avail.is_empty() {
+ let meta_avail =
+ bytesize::ByteSize(meta_part_avail.iter().min().unwrap() * (1 << PARTITION_BITS));
+ let data_avail =
+ bytesize::ByteSize(data_part_avail.iter().min().unwrap() * (1 << PARTITION_BITS));
+ writeln!(
+ &mut ret,
+ "\nEstimated available storage space cluster-wide (might be lower in practice):"
+ )
+ .unwrap();
+ if meta_part_avail.len() < node_partition_count.len()
+ || data_part_avail.len() < node_partition_count.len()
+ {
+ writeln!(&mut ret, " data: < {}", data_avail).unwrap();
+ writeln!(&mut ret, " metadata: < {}", meta_avail).unwrap();
+ writeln!(&mut ret, "A precise estimate could not be given as information is missing for some storage nodes.").unwrap();
+ } else {
+ writeln!(&mut ret, " data: {}", data_avail).unwrap();
+ writeln!(&mut ret, " metadata: {}", meta_avail).unwrap();
+ }
+ }
+
+ ret
+ }
+
fn gather_table_stats<F, R>(
&self,
t: &Arc<Table<F, R>>,
diff --git a/src/garage/cli/cmd.rs b/src/garage/cli/cmd.rs
index 46e9113c..af7f1aa1 100644
--- a/src/garage/cli/cmd.rs
+++ b/src/garage/cli/cmd.rs
@@ -59,18 +59,29 @@ pub async fn cmd_status(rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID) ->
let layout = fetch_layout(rpc_cli, rpc_host).await?;
println!("==== HEALTHY NODES ====");
- let mut healthy_nodes = vec!["ID\tHostname\tAddress\tTags\tZone\tCapacity".to_string()];
+ let mut healthy_nodes =
+ vec!["ID\tHostname\tAddress\tTags\tZone\tCapacity\tDataAvail\tMetaAvail".to_string()];
for adv in status.iter().filter(|adv| adv.is_up) {
match layout.roles.get(&adv.id) {
Some(NodeRoleV(Some(cfg))) => {
+ let data_avail = match &adv.status.data_disk_avail {
+ _ if cfg.capacity.is_none() => "N/A".into(),
+ Some((avail, total)) => {
+ let pct = (*avail as f64) / (*total as f64) * 100.;
+ let avail = bytesize::ByteSize::b(*avail);
+ format!("{} ({:.1}%)", avail, pct)
+ }
+ None => "?".into(),
+ };
healthy_nodes.push(format!(
- "{id:?}\t{host}\t{addr}\t[{tags}]\t{zone}\t{capacity}",
+ "{id:?}\t{host}\t{addr}\t[{tags}]\t{zone}\t{capacity}\t{data_avail}",
id = adv.id,
host = adv.status.hostname,
addr = adv.addr,
tags = cfg.tags.join(","),
zone = cfg.zone,
capacity = cfg.capacity_string(),
+ data_avail = data_avail,
));
}
_ => {
diff --git a/src/garage/cli/structs.rs b/src/garage/cli/structs.rs
index 661a71f0..01ae92da 100644
--- a/src/garage/cli/structs.rs
+++ b/src/garage/cli/structs.rs
@@ -504,6 +504,11 @@ pub struct StatsOpt {
/// Gather detailed statistics (this can be long)
#[structopt(short = "d", long = "detailed")]
pub detailed: bool,
+
+ /// Don't show global cluster stats (internal use in RPC)
+ #[structopt(skip)]
+ #[serde(default)]
+ pub skip_global: bool,
}
#[derive(Serialize, Deserialize, StructOpt, Debug, Eq, PartialEq, Clone)]
diff --git a/src/rpc/Cargo.toml b/src/rpc/Cargo.toml
index 22b15679..87ae15ac 100644
--- a/src/rpc/Cargo.toml
+++ b/src/rpc/Cargo.toml
@@ -23,6 +23,7 @@ hex = "0.4"
tracing = "0.1"
rand = "0.8"
sodiumoxide = { version = "0.2.5-0", package = "kuska-sodiumoxide" }
+systemstat = "0.2.3"
async-trait = "0.1.7"
serde = { version = "1.0", default-features = false, features = ["derive", "rc"] }
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 90f6a4c2..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,
@@ -118,18 +118,28 @@ pub struct System {
/// Path to metadata directory
pub metadata_dir: PathBuf,
+ /// Path to data directory
+ pub data_dir: PathBuf,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NodeStatus {
/// Hostname of the node
pub hostname: String,
+
/// Replication factor configured on the node
pub replication_factor: usize,
/// Cluster layout version
pub cluster_layout_version: u64,
/// Hash of cluster layout staging data
pub cluster_layout_staging_hash: Hash,
+
+ /// Disk usage on partition containing metadata directory (tuple: `(avail, total)`)
+ #[serde(default)]
+ pub meta_disk_avail: Option<(u64, u64)>,
+ /// Disk usage on partition containing data directory (tuple: `(avail, total)`)
+ #[serde(default)]
+ pub data_disk_avail: Option<(u64, u64)>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
@@ -271,18 +281,11 @@ impl System {
}
};
- let local_status = NodeStatus {
- hostname: gethostname::gethostname()
- .into_string()
- .unwrap_or_else(|_| "<invalid utf-8>".to_string()),
- replication_factor,
- cluster_layout_version: cluster_layout.version,
- cluster_layout_staging_hash: cluster_layout.staging_hash,
- };
-
- #[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));
@@ -373,12 +376,12 @@ impl System {
consul_discovery,
#[cfg(feature = "kubernetes-discovery")]
kubernetes_discovery: config.kubernetes_discovery.clone(),
- #[cfg(feature = "metrics")]
metrics,
ring,
update_ring: Mutex::new(update_ring),
metadata_dir: config.metadata_dir.clone(),
+ data_dir: config.data_dir.clone(),
});
sys.system_endpoint.set_handler(sys.clone());
Ok(sys)
@@ -416,12 +419,7 @@ impl System {
.get(&n.id.into())
.cloned()
.map(|(_, st)| st)
- .unwrap_or(NodeStatus {
- hostname: "?".to_string(),
- replication_factor: 0,
- cluster_layout_version: 0,
- cluster_layout_staging_hash: Hash::from([0u8; 32]),
- }),
+ .unwrap_or(NodeStatus::unknown()),
})
.collect::<Vec<_>>();
known_nodes
@@ -600,6 +598,9 @@ impl System {
let ring = self.ring.borrow();
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, &self.metrics);
+
self.local_status.swap(Arc::new(new_si));
}
@@ -864,6 +865,69 @@ impl EndpointHandler<SystemRpc> for System {
}
}
+impl NodeStatus {
+ fn initial(replication_factor: usize, layout: &ClusterLayout) -> Self {
+ NodeStatus {
+ hostname: gethostname::gethostname()
+ .into_string()
+ .unwrap_or_else(|_| "<invalid utf-8>".to_string()),
+ replication_factor,
+ cluster_layout_version: layout.version,
+ cluster_layout_staging_hash: layout.staging_hash,
+ meta_disk_avail: None,
+ data_disk_avail: None,
+ }
+ }
+
+ fn unknown() -> Self {
+ NodeStatus {
+ hostname: "?".to_string(),
+ replication_factor: 0,
+ cluster_layout_version: 0,
+ cluster_layout_staging_hash: Hash::from([0u8; 32]),
+ meta_disk_avail: None,
+ data_disk_avail: None,
+ }
+ }
+
+ 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();
+
+ let mount_avail = |path: &Path| {
+ mounts
+ .iter()
+ .filter(|x| path.starts_with(&x.fs_mounted_on))
+ .max_by_key(|x| x.fs_mounted_on.len())
+ .map(|x| (x.avail.as_u64(), x.total.as_u64()))
+ };
+
+ 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);
+ }
+ }
+}
+
fn get_default_ip() -> Option<IpAddr> {
pnet_datalink::interfaces()
.iter()
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,
}
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 03:42:07 +0000