Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

refactor(meta): break hummock manager Versioning into smaller structs #16710

Merged
merged 2 commits into from
May 16, 2024
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 14 additions & 11 deletions src/common/metrics/src/monitor/rwlock.rs
Original file line number Diff line number Diff line change
Expand Up @@ -16,31 +16,34 @@ use prometheus::HistogramVec;
use tokio::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard};

pub struct MonitoredRwLock<T> {
// labels: [lock_name, lock_type]
metrics: HistogramVec,
inner: RwLock<T>,
lock_name: &'static str,
}

impl<T> MonitoredRwLock<T> {
pub fn new(metrics: HistogramVec, val: T) -> Self {
pub fn new(metrics: HistogramVec, val: T, lock_name: &'static str) -> Self {
Self {
metrics,
inner: RwLock::new(val),
lock_name,
}
}

pub async fn read<'a, 'b>(
&'a self,
label_values: &'b [&'static str],
) -> RwLockReadGuard<'a, T> {
let _timer = self.metrics.with_label_values(label_values).start_timer();
pub async fn read(&self) -> RwLockReadGuard<'_, T> {
let _timer = self
.metrics
.with_label_values(&[self.lock_name, "read"])
.start_timer();
self.inner.read().await
}

pub async fn write<'a, 'b>(
&'a self,
label_values: &'b [&'static str],
) -> RwLockWriteGuard<'a, T> {
let _timer = self.metrics.with_label_values(label_values).start_timer();
pub async fn write(&self) -> RwLockWriteGuard<'_, T> {
let _timer = self
.metrics
.with_label_values(&[self.lock_name, "write"])
.start_timer();
self.inner.write().await
}
}
22 changes: 10 additions & 12 deletions src/meta/src/hummock/manager/checkpoint.rs
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@ use std::ops::Bound::{Excluded, Included};
use std::ops::{Deref, DerefMut};
use std::sync::atomic::Ordering;

use function_name::named;
use risingwave_hummock_sdk::compaction_group::hummock_version_ext::{
object_size_map, summarize_group_deltas,
};
Expand All @@ -32,7 +31,6 @@ use tracing::warn;

use crate::hummock::error::Result;
use crate::hummock::manager::versioning::Versioning;
use crate::hummock::manager::{read_lock, write_lock};
use crate::hummock::metrics_utils::{trigger_gc_stat, trigger_split_stat};
use crate::hummock::HummockManager;

Expand Down Expand Up @@ -122,11 +120,10 @@ impl HummockManager {
/// Returns the diff between new and old checkpoint id.
/// Note that this method must not be called concurrently, because internally it doesn't hold
/// lock throughout the method.
#[named]
pub async fn create_version_checkpoint(&self, min_delta_log_num: u64) -> Result<u64> {
let timer = self.metrics.version_checkpoint_latency.start_timer();
// 1. hold read lock and create new checkpoint
let versioning_guard = read_lock!(self, versioning).await;
let versioning_guard = self.versioning.read().await;
let versioning: &Versioning = versioning_guard.deref();
let current_version: &HummockVersion = &versioning.current_version;
let old_checkpoint: &HummockVersionCheckpoint = &versioning.checkpoint;
Expand All @@ -137,9 +134,10 @@ impl HummockManager {
}
if cfg!(test) && new_checkpoint_id == old_checkpoint_id {
drop(versioning_guard);
let mut versioning = write_lock!(self, versioning).await;
versioning.mark_objects_for_deletion();
let min_pinned_version_id = versioning.min_pinned_version_id();
let versioning = self.versioning.read().await;
let context_info = self.context_info.read().await;
versioning.mark_objects_for_deletion(&context_info, &self.delete_object_tracker);
let min_pinned_version_id = context_info.min_pinned_version_id();
trigger_gc_stat(&self.metrics, &versioning.checkpoint, min_pinned_version_id);
return Ok(0);
}
Expand Down Expand Up @@ -224,16 +222,17 @@ impl HummockManager {
}
}
// 3. hold write lock and update in memory state
let mut versioning_guard = write_lock!(self, versioning).await;
let mut versioning_guard = self.versioning.write().await;
let versioning = versioning_guard.deref_mut();
let context_info = self.context_info.read().await;
assert!(new_checkpoint.version.id > versioning.checkpoint.version.id);
versioning.checkpoint = new_checkpoint;
// Not delete stale objects when archive is enabled
if !self.env.opts.enable_hummock_data_archive {
versioning.mark_objects_for_deletion();
versioning.mark_objects_for_deletion(&context_info, &self.delete_object_tracker);
}

let min_pinned_version_id = versioning.min_pinned_version_id();
let min_pinned_version_id = context_info.min_pinned_version_id();
trigger_gc_stat(&self.metrics, &versioning.checkpoint, min_pinned_version_id);
trigger_split_stat(&self.metrics, &versioning.current_version);
drop(versioning_guard);
Expand All @@ -260,9 +259,8 @@ impl HummockManager {
self.pause_version_checkpoint.load(Ordering::Relaxed)
}

#[named]
pub async fn get_checkpoint_version(&self) -> HummockVersion {
let versioning_guard = read_lock!(self, versioning).await;
let versioning_guard = self.versioning.read().await;
versioning_guard.checkpoint.version.clone()
}
}
20 changes: 6 additions & 14 deletions src/meta/src/hummock/manager/compaction.rs
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,6 @@
use std::collections::{BTreeMap, HashMap, HashSet};
use std::sync::Arc;

use function_name::named;
use futures::future::Shared;
use itertools::Itertools;
use risingwave_hummock_sdk::{CompactionGroupId, HummockCompactionTaskId};
Expand All @@ -37,7 +36,7 @@ use tokio::sync::oneshot::Receiver as OneShotReceiver;
use crate::hummock::compaction::selector::level_selector::PickerInfo;
use crate::hummock::compaction::selector::DynamicLevelSelectorCore;
use crate::hummock::compaction::{CompactStatus, CompactionDeveloperConfig, CompactionSelector};
use crate::hummock::manager::{init_selectors, read_lock};
use crate::hummock::manager::init_selectors;
use crate::hummock::HummockManager;

const MAX_SKIP_TIMES: usize = 8;
Expand All @@ -54,17 +53,12 @@ pub struct Compaction {
}

impl HummockManager {
#[named]
pub async fn get_assigned_compact_task_num(&self) -> u64 {
read_lock!(self, compaction)
.await
.compact_task_assignment
.len() as u64
self.compaction.read().await.compact_task_assignment.len() as u64
}

#[named]
pub async fn list_all_tasks_ids(&self) -> Vec<HummockCompactionTaskId> {
let compaction = read_lock!(self, compaction).await;
let compaction = self.compaction.read().await;

compaction
.compaction_statuses
Expand All @@ -77,11 +71,10 @@ impl HummockManager {
.collect_vec()
}

#[named]
pub async fn list_compaction_status(
&self,
) -> (Vec<PbCompactStatus>, Vec<CompactTaskAssignment>) {
let compaction = read_lock!(self, compaction).await;
let compaction = self.compaction.read().await;
(
compaction.compaction_statuses.values().map_into().collect(),
compaction
Expand All @@ -92,14 +85,13 @@ impl HummockManager {
)
}

#[named]
pub async fn get_compaction_scores(
&self,
compaction_group_id: CompactionGroupId,
) -> Vec<PickerInfo> {
let (status, levels, group) = {
let compaction = read_lock!(self, compaction).await;
let versioning = read_lock!(self, versioning).await;
let compaction = self.compaction.read().await;
let versioning = self.versioning.read().await;
let config_manager = self.compaction_group_manager.read().await;
match (
compaction.compaction_statuses.get(&compaction_group_id),
Expand Down
Loading
Loading