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authorAlex Auvolat <alex@adnab.me>2023-01-26 15:04:32 +0100
committerAlex Auvolat <alex@adnab.me>2023-01-26 15:04:32 +0100
commitefb6b6e868be1be0725125485810ce96e74ed124 (patch)
tree19b63f6ac98b3125a832407c5e8618e6443face5 /src/garage
parentf251b4721f2c016e3a90d913cb766a57a53a3d30 (diff)
downloadgarage-efb6b6e868be1be0725125485810ce96e74ed124.tar.gz
garage-efb6b6e868be1be0725125485810ce96e74ed124.zip
Disk space report
Report available disk space on nodes and calculate cluster-wide available space in `garage stats` (fix #479)
Diffstat (limited to 'src/garage')
-rw-r--r--src/garage/admin.rs125
-rw-r--r--src/garage/cli/cmd.rs15
-rw-r--r--src/garage/cli/structs.rs5
3 files changed, 126 insertions, 19 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)]