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cluster layout: adapt all uses of ClusterLayout to LayoutHistory

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This commit is contained in:
Alex Auvolat
2023-11-08 19:28:36 +01:00
parent fe9af1dcaa
commit 8dccee3ccf
12 changed files with 80 additions and 69 deletions
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src/rpc/layout/history.rs
+5 -12
View File
@@ -1,5 +1,4 @@
use std::cmp::Ordering;
use std::sync::Arc;
use garage_util::crdt::{Crdt, Lww, LwwMap};
use garage_util::data::*;
@@ -64,24 +63,22 @@ impl LayoutHistory {
}
// Add any new versions to history
let mut versions = self.versions.to_vec();
for v2 in other.versions.iter() {
if let Some(v1) = versions.iter().find(|v| v.version == v2.version) {
if let Some(v1) = self.versions.iter().find(|v| v.version == v2.version) {
if v1 != v2 {
error!("Inconsistent layout histories: different layout compositions for version {}. Your cluster will be broken as long as this layout version is not replaced.", v2.version);
}
} else if versions.iter().all(|v| v.version != v2.version - 1) {
} else if self.versions.iter().all(|v| v.version != v2.version - 1) {
error!(
"Cannot receive new layout version {}, version {} is missing",
v2.version,
v2.version - 1
);
} else {
versions.push(v2.clone());
self.versions.push(v2.clone());
changed = true;
}
}
self.versions = Arc::from(versions.into_boxed_slice());
// Merge trackers
self.update_trackers.merge(&other.update_trackers);
@@ -117,9 +114,7 @@ To know the correct value of the new layout version, invoke `garage layout show`
let msg = new_version.calculate_partition_assignment()?;
let mut versions = self.versions.to_vec();
versions.push(new_version);
self.versions = Arc::from(versions.into_boxed_slice());
self.versions.push(new_version);
Ok((self, msg))
}
@@ -149,9 +144,7 @@ To know the correct value of the new layout version, invoke `garage layout show`
let mut new_version = self.current().clone();
new_version.version += 1;
let mut versions = self.versions.to_vec();
versions.push(new_version);
self.versions = Arc::from(versions.into_boxed_slice());
self.versions.push(new_version);
Ok(self)
}
src/rpc/layout/schema.rs
+2 -3
View File
@@ -184,7 +184,6 @@ mod v010 {
use garage_util::data::{Hash, Uuid};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::sync::Arc;
pub use v09::{LayoutParameters, NodeRole, NodeRoleV, ZoneRedundancy};
/// The layout of the cluster, i.e. the list of roles
@@ -215,7 +214,7 @@ mod v010 {
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct LayoutHistory {
/// The versions currently in use in the cluster
pub versions: Arc<[LayoutVersion]>,
pub versions: Vec<LayoutVersion>,
/// Update trackers
pub update_trackers: UpdateTrackers,
@@ -267,7 +266,7 @@ mod v010 {
.collect::<HashMap<Uuid, u64>>(),
);
let mut ret = Self {
versions: Arc::from(vec![version].into_boxed_slice()),
versions: vec![version],
update_trackers: UpdateTrackers {
ack_map: update_tracker.clone(),
sync_map: update_tracker.clone(),