refactor(replication): isolate queue backpressure decisions (#4202)

This commit is contained in:
Zhengchao An
2026-07-02 23:28:45 +08:00
committed by GitHub
parent a9894843d9
commit 29899f4731
4 changed files with 282 additions and 98 deletions
@@ -34,11 +34,12 @@ use super::runtime_boundary as runtime_sources;
use super::{BucketReplicationResyncStatus, ResyncOpts, TargetReplicationResyncStatus};
use lazy_static::lazy_static;
use rustfs_replication::{
DeletedObjectReplicationInfo, LARGE_WORKER_COUNT, ReplicationHealQueueAction, ReplicationHealQueueResult,
ReplicationHealResyncDeletes, ReplicationOperation, ReplicationPoolOpts, ReplicationPriority, ReplicationQueueAdmission,
WORKER_MAX_LIMIT, initial_worker_counts, mrf_worker_size_to_count, next_large_worker_count, next_mrf_worker_count,
next_regular_worker_count, replication_heal_queue_action, resized_worker_counts, should_auto_resume_resync,
should_grow_large_workers, should_queue_large_object,
DeletedObjectReplicationInfo, LARGE_WORKER_COUNT, ReplicationBackpressureRecommendation, ReplicationBackpressureState,
ReplicationHealQueueAction, ReplicationHealQueueResult, ReplicationHealResyncDeletes, ReplicationOperation,
ReplicationPoolOpts, ReplicationPriority, ReplicationQueueAdmission, ReplicationWorkerQueue, WORKER_MAX_LIMIT,
initial_worker_counts, large_worker_backpressure_resize, mrf_worker_size_to_count, replication_backpressure_recommendation,
replication_heal_queue_action, resized_worker_counts, should_auto_resume_resync, should_queue_large_object,
worker_queue_for_replication_type,
};
use rustfs_utils::http::{SUFFIX_REPLICATION_TIMESTAMP, get_str};
use std::sync::Arc;
@@ -396,6 +397,73 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
workers.get(index).cloned()
}
async fn worker_queue_channel(
&self,
op_type: &ReplicationType,
bucket: &str,
object: &str,
size: i64,
) -> Option<Sender<ReplicationOperation>> {
match worker_queue_for_replication_type(op_type) {
ReplicationWorkerQueue::Mrf => Some(self.mrf_replica_tx.clone()),
ReplicationWorkerQueue::Regular => self.get_worker_ch(bucket, object, size).await,
}
}
async fn apply_queue_backpressure(&self, queue_type: &'static str, include_mrf_workers: bool, message: &'static str) {
let priority = self.priority.read().await.clone();
let max_workers = *self.max_workers.read().await;
let current_workers = self.workers.read().await.len();
let current_mrf_workers = self.mrf_worker_size.load(Ordering::SeqCst);
let recommendation = replication_backpressure_recommendation(
&priority,
ReplicationBackpressureState {
current_workers,
active_workers: self.active_workers(),
current_mrf_workers,
active_mrf_workers: self.active_mrf_workers(),
max_workers,
include_mrf_workers,
},
);
match recommendation {
ReplicationBackpressureRecommendation::KeepFast => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type,
priority = "fast",
recommendation = "none",
"{message}"
);
}
ReplicationBackpressureRecommendation::SetPriorityAuto => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type,
priority = "slow",
recommendation = "set_priority_auto",
"{message}"
);
}
ReplicationBackpressureRecommendation::Resize(resize) => {
if let Some(regular_workers) = resize.regular_workers {
self.resize_workers(regular_workers.new_count, regular_workers.existing_count)
.await;
}
if let Some(mrf_workers) = resize.mrf_workers {
self.resize_failed_workers(mrf_workers).await;
}
}
ReplicationBackpressureRecommendation::Noop => {}
}
}
/// Queues a replica task
pub async fn queue_replica_task(&self, ri: ReplicateObjectInfo) -> ReplicationQueueAdmission {
// If object is large, queue it to a static set of large workers
@@ -418,6 +486,7 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
// Try to add more workers if possible
let max_l_workers = *self.max_l_workers.read().await;
let existing = lrg_workers.len();
let resize = large_worker_backpressure_resize(existing, self.active_lrg_workers(), max_l_workers);
drop(lrg_workers);
// Queue to MRF if worker is busy.
@@ -425,10 +494,8 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
queue_mrf_save_admission(&self.mrf_save_tx, ri.to_mrf_entry(), &ri.bucket, &ri.name, "large_object")
.await;
if should_grow_large_workers(self.active_lrg_workers(), max_l_workers) {
let workers = next_large_worker_count(existing, max_l_workers);
self.resize_lrg_workers(workers, existing).await;
if let Some(resize) = resize {
self.resize_lrg_workers(resize.new_count, resize.existing_count).await;
}
return admission;
}
@@ -440,10 +507,7 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
// Handle regular sized objects
let ch = match ri.op_type {
ReplicationType::Heal | ReplicationType::ExistingObject => Some(self.mrf_replica_tx.clone()),
_ => self.get_worker_ch(&ri.bucket, &ri.name, ri.size).await,
};
let ch = self.worker_queue_channel(&ri.op_type, &ri.bucket, &ri.name, ri.size).await;
let Some(channel) = ch else {
return ReplicationQueueAdmission::Missed;
@@ -457,57 +521,17 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
let admission = queue_mrf_save_admission(&self.mrf_save_tx, ri.to_mrf_entry(), &ri.bucket, &ri.name, "object").await;
// Try to scale up workers based on priority
let priority = self.priority.read().await.clone();
let max_workers = *self.max_workers.read().await;
match priority {
ReplicationPriority::Fast => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type = "object",
priority = "fast",
recommendation = "none",
"Replication queue is backpressured"
);
}
ReplicationPriority::Slow => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type = "object",
priority = "slow",
recommendation = "set_priority_auto",
"Replication queue is backpressured"
);
}
ReplicationPriority::Auto => {
let workers = self.workers.read().await;
if let Some(new_count) = next_regular_worker_count(workers.len(), self.active_workers(), max_workers) {
let existing = workers.len();
drop(workers);
self.resize_workers(new_count, existing).await;
}
let current_mrf = self.mrf_worker_size.load(Ordering::SeqCst);
if let Some(new_mrf) = next_mrf_worker_count(current_mrf, self.active_mrf_workers(), max_workers) {
self.resize_failed_workers(new_mrf).await;
}
}
}
self.apply_queue_backpressure("object", true, "Replication queue is backpressured")
.await;
admission
}
/// Queues a replica delete task
pub async fn queue_replica_delete_task(&self, doi: DeletedObjectReplicationInfo) -> ReplicationQueueAdmission {
let ch = match doi.op_type {
ReplicationType::Heal | ReplicationType::ExistingObject => Some(self.mrf_replica_tx.clone()),
_ => self.get_worker_ch(&doi.bucket, &doi.delete_object.object_name, 0).await,
};
let ch = self
.worker_queue_channel(&doi.op_type, &doi.bucket, &doi.delete_object.object_name, 0)
.await;
let Some(channel) = ch else {
return ReplicationQueueAdmission::Missed;
@@ -526,41 +550,8 @@ impl<S: ReplicationStorage> ReplicationPool<S> {
)
.await;
let priority = self.priority.read().await.clone();
let max_workers = *self.max_workers.read().await;
match priority {
ReplicationPriority::Fast => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type = "delete",
priority = "fast",
recommendation = "none",
"Replication delete queue is backpressured"
);
}
ReplicationPriority::Slow => {
debug!(
event = EVENT_REPLICATION_BACKPRESSURE,
component = LOG_COMPONENT_ECSTORE,
subsystem = LOG_SUBSYSTEM_REPLICATION,
queue_type = "delete",
priority = "slow",
recommendation = "set_priority_auto",
"Replication delete queue is backpressured"
);
}
ReplicationPriority::Auto => {
let workers = self.workers.read().await;
if let Some(new_count) = next_regular_worker_count(workers.len(), self.active_workers(), max_workers) {
let existing = workers.len();
drop(workers);
self.resize_workers(new_count, existing).await;
}
}
}
self.apply_queue_backpressure("delete", false, "Replication delete queue is backpressured")
.await;
admission
}
+6 -3
View File
@@ -46,7 +46,8 @@ pub use operation::{
};
pub use queue::{
ReplicationHealQueueAction, ReplicationHealQueueResult, ReplicationHealResyncDeletes, ReplicationOperation,
ReplicationPriority, ReplicationQueueAdmission, replication_heal_queue_action,
ReplicationPriority, ReplicationQueueAdmission, ReplicationWorkerQueue, mrf_save_admission, replication_heal_queue_action,
worker_queue_for_replication_type,
};
pub use resync::{
BucketReplicationResyncStatus, Error, Result, ResyncOpts, ResyncStatusType, TargetReplicationResyncStatus,
@@ -56,8 +57,10 @@ pub use resync::{
pub use rule::ReplicationRuleExt;
pub use runtime::{
LARGE_WORKER_COUNT, MIN_LARGE_OBJ_SIZE, MRF_WORKER_AUTO_DEFAULT, MRF_WORKER_MAX_LIMIT, MRF_WORKER_MIN_LIMIT,
ReplicationPoolOpts, ReplicationWorkerCounts, WORKER_AUTO_DEFAULT, WORKER_MAX_LIMIT, WORKER_MIN_LIMIT, initial_worker_counts,
mrf_worker_size_to_count, next_large_worker_count, next_mrf_worker_count, next_regular_worker_count, resized_worker_counts,
ReplicationBackpressureRecommendation, ReplicationBackpressureResize, ReplicationBackpressureState, ReplicationPoolOpts,
ReplicationWorkerCounts, ReplicationWorkerResize, WORKER_AUTO_DEFAULT, WORKER_MAX_LIMIT, WORKER_MIN_LIMIT,
initial_worker_counts, large_worker_backpressure_resize, mrf_worker_size_to_count, next_large_worker_count,
next_mrf_worker_count, next_regular_worker_count, replication_backpressure_recommendation, resized_worker_counts,
should_grow_large_workers, should_queue_large_object, worker_counts_for_priority,
};
pub use rustfs_filemeta::{
+49 -2
View File
@@ -40,6 +40,27 @@ impl ReplicationQueueAdmission {
}
}
pub fn mrf_save_admission(saved: bool) -> ReplicationQueueAdmission {
if saved {
ReplicationQueueAdmission::Queued
} else {
ReplicationQueueAdmission::Missed
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ReplicationWorkerQueue {
Regular,
Mrf,
}
pub fn worker_queue_for_replication_type(op_type: &ReplicationType) -> ReplicationWorkerQueue {
match op_type {
ReplicationType::Heal | ReplicationType::ExistingObject => ReplicationWorkerQueue::Mrf,
_ => ReplicationWorkerQueue::Regular,
}
}
#[derive(Debug, Clone, Default)]
pub struct ReplicationHealQueueResult {
pub object_info: ReplicateObjectInfo,
@@ -247,11 +268,14 @@ mod tests {
use rustfs_storage_api::DeletedObject;
use uuid::Uuid;
use super::{ReplicationHealQueueAction, ReplicationOperation, ReplicationPriority, ReplicationQueueAdmission};
use super::{
ReplicationHealQueueAction, ReplicationOperation, ReplicationPriority, ReplicationQueueAdmission, ReplicationWorkerQueue,
};
use crate::{
DeletedObjectReplicationInfo, REPLICATE_EXISTING, REPLICATE_HEAL, REPLICATE_HEAL_DELETE, ReplicateDecision,
ReplicateObjectInfo, ReplicateTargetDecision, ReplicationStatusType, ReplicationType, ReplicationWorkerOperation,
ResyncTargetDecision, VersionPurgeStatusType, replication_heal_queue_action,
ResyncTargetDecision, VersionPurgeStatusType, mrf_save_admission, replication_heal_queue_action,
worker_queue_for_replication_type,
};
#[test]
@@ -268,6 +292,29 @@ mod tests {
assert_eq!(admission, ReplicationQueueAdmission::Missed);
}
#[test]
fn mrf_save_admission_maps_send_result() {
assert_eq!(mrf_save_admission(true), ReplicationQueueAdmission::Queued);
assert_eq!(mrf_save_admission(false), ReplicationQueueAdmission::Missed);
}
#[test]
fn worker_queue_routes_heal_and_existing_objects_to_mrf() {
assert_eq!(worker_queue_for_replication_type(&ReplicationType::Heal), ReplicationWorkerQueue::Mrf);
assert_eq!(
worker_queue_for_replication_type(&ReplicationType::ExistingObject),
ReplicationWorkerQueue::Mrf
);
assert_eq!(
worker_queue_for_replication_type(&ReplicationType::Object),
ReplicationWorkerQueue::Regular
);
assert_eq!(
worker_queue_for_replication_type(&ReplicationType::Delete),
ReplicationWorkerQueue::Regular
);
}
#[test]
fn heal_queue_action_routes_failed_objects_to_heal_queue() {
let mut roi = replicate_object_info(ReplicationStatusType::Failed);
+143
View File
@@ -23,6 +23,36 @@ pub const MRF_WORKER_AUTO_DEFAULT: usize = 4;
pub const LARGE_WORKER_COUNT: usize = 10;
pub const MIN_LARGE_OBJ_SIZE: i64 = 128 * 1024 * 1024;
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct ReplicationWorkerResize {
pub new_count: usize,
pub existing_count: usize,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct ReplicationBackpressureState {
pub current_workers: usize,
pub active_workers: i32,
pub current_mrf_workers: i32,
pub active_mrf_workers: i32,
pub max_workers: usize,
pub include_mrf_workers: bool,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct ReplicationBackpressureResize {
pub regular_workers: Option<ReplicationWorkerResize>,
pub mrf_workers: Option<i32>,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ReplicationBackpressureRecommendation {
KeepFast,
SetPriorityAuto,
Resize(ReplicationBackpressureResize),
Noop,
}
#[derive(Debug, Clone)]
pub struct ReplicationPoolOpts {
pub priority: ReplicationPriority,
@@ -133,6 +163,49 @@ pub fn next_mrf_worker_count(current_mrf_workers: i32, active_mrf_workers: i32,
}
}
pub fn large_worker_backpressure_resize(
existing_workers: usize,
active_lrg_workers: i32,
max_l_workers: usize,
) -> Option<ReplicationWorkerResize> {
should_grow_large_workers(active_lrg_workers, max_l_workers).then_some(ReplicationWorkerResize {
new_count: next_large_worker_count(existing_workers, max_l_workers),
existing_count: existing_workers,
})
}
pub fn replication_backpressure_recommendation(
priority: &ReplicationPriority,
state: ReplicationBackpressureState,
) -> ReplicationBackpressureRecommendation {
match priority {
ReplicationPriority::Fast => ReplicationBackpressureRecommendation::KeepFast,
ReplicationPriority::Slow => ReplicationBackpressureRecommendation::SetPriorityAuto,
ReplicationPriority::Auto => {
let regular_workers =
next_regular_worker_count(state.current_workers, state.active_workers, state.max_workers).map(|new_count| {
ReplicationWorkerResize {
new_count,
existing_count: state.current_workers,
}
});
let mrf_workers = state
.include_mrf_workers
.then(|| next_mrf_worker_count(state.current_mrf_workers, state.active_mrf_workers, state.max_workers))
.flatten();
if regular_workers.is_none() && mrf_workers.is_none() {
ReplicationBackpressureRecommendation::Noop
} else {
ReplicationBackpressureRecommendation::Resize(ReplicationBackpressureResize {
regular_workers,
mrf_workers,
})
}
}
}
}
fn auto_worker_count(current_workers: usize, auto_default: usize) -> usize {
if current_workers < auto_default {
current_workers.saturating_add(1).min(auto_default)
@@ -229,4 +302,74 @@ mod tests {
assert!(should_grow_large_workers(1, LARGE_WORKER_COUNT));
assert_eq!(next_large_worker_count(LARGE_WORKER_COUNT, LARGE_WORKER_COUNT), LARGE_WORKER_COUNT);
}
#[test]
fn large_worker_resize_recommendation_respects_growth_limit() {
assert_eq!(
large_worker_backpressure_resize(3, 2, LARGE_WORKER_COUNT),
Some(ReplicationWorkerResize {
new_count: 4,
existing_count: 3
})
);
assert_eq!(
large_worker_backpressure_resize(LARGE_WORKER_COUNT, usize_to_i32_saturating(LARGE_WORKER_COUNT), LARGE_WORKER_COUNT),
None
);
}
#[test]
fn queue_backpressure_recommendation_preserves_priority_semantics() {
let state = ReplicationBackpressureState {
current_workers: 4,
active_workers: 4,
current_mrf_workers: 2,
active_mrf_workers: 2,
max_workers: WORKER_MAX_LIMIT,
include_mrf_workers: true,
};
assert_eq!(
replication_backpressure_recommendation(&ReplicationPriority::Fast, state),
ReplicationBackpressureRecommendation::KeepFast
);
assert_eq!(
replication_backpressure_recommendation(&ReplicationPriority::Slow, state),
ReplicationBackpressureRecommendation::SetPriorityAuto
);
assert_eq!(
replication_backpressure_recommendation(&ReplicationPriority::Auto, state),
ReplicationBackpressureRecommendation::Resize(ReplicationBackpressureResize {
regular_workers: Some(ReplicationWorkerResize {
new_count: 5,
existing_count: 4
}),
mrf_workers: Some(3),
})
);
}
#[test]
fn delete_queue_backpressure_skips_mrf_growth() {
let state = ReplicationBackpressureState {
current_workers: 4,
active_workers: 4,
current_mrf_workers: 2,
active_mrf_workers: 2,
max_workers: WORKER_MAX_LIMIT,
include_mrf_workers: false,
};
assert_eq!(
replication_backpressure_recommendation(&ReplicationPriority::Auto, state),
ReplicationBackpressureRecommendation::Resize(ReplicationBackpressureResize {
regular_workers: Some(ReplicationWorkerResize {
new_count: 5,
existing_count: 4
}),
mrf_workers: None,
})
);
}
}