Deuxfleurs/garage
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refactor repair workers with a trait

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Alex 2023-05-04 10:36:48 +02:00
parent 8644376ac2
commit 058518c22b
1 changed files with 94 additions and 81 deletions
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175
src/garage/repair/online.rs
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@ -5,11 +5,15 @@ use async_trait::async_trait;
use tokio::sync::watch;
use garage_block::repair::ScrubWorkerCommand;
use garage_model::garage::Garage;
use garage_model::s3::block_ref_table::*;
use garage_model::s3::object_table::*;
use garage_model::s3::version_table::*;
use garage_table::replication::*;
use garage_table::*;
use garage_util::background::*;
use garage_util::error::Error;
use garage_util::migrate::Migrate;
@ -32,11 +36,11 @@ pub async fn launch_online_repair(
}
RepairWhat::Versions => {
info!("Repairing the versions table");
bg.spawn_worker(RepairVersionsWorker::new(garage.clone()));
bg.spawn_worker(TableRepairWorker::new(garage.clone(), RepairVersions));
}
RepairWhat::BlockRefs => {
info!("Repairing the block refs table");
bg.spawn_worker(RepairBlockrefsWorker::new(garage.clone()));
bg.spawn_worker(TableRepairWorker::new(garage.clone(), RepairBlockRefs));
}
RepairWhat::Blocks => {
info!("Repairing the stored blocks");
@ -67,71 +71,70 @@ pub async fn launch_online_repair(
// ----
struct RepairVersionsWorker {
#[async_trait]
trait TableRepair: Send + Sync + 'static {
type T: TableSchema;
fn table(garage: &Garage) -> &Table<Self::T, TableShardedReplication>;
async fn process(
&mut self,
garage: &Garage,
entry: <<Self as TableRepair>::T as TableSchema>::E,
) -> Result<bool, Error>;
}
struct TableRepairWorker<T: TableRepair> {
garage: Arc<Garage>,
pos: Vec<u8>,
counter: usize,
repairs: usize,
inner: T,
}
impl RepairVersionsWorker {
fn new(garage: Arc<Garage>) -> Self {
impl<R: TableRepair> TableRepairWorker<R> {
fn new(garage: Arc<Garage>, inner: R) -> Self {
Self {
garage,
inner,
pos: vec![],
counter: 0,
repairs: 0,
}
}
}
#[async_trait]
impl Worker for RepairVersionsWorker {
impl<R: TableRepair> Worker for TableRepairWorker<R> {
fn name(&self) -> String {
"Version repair worker".into()
format!("{} repair worker", R::T::TABLE_NAME)
}
fn status(&self) -> WorkerStatus {
WorkerStatus {
progress: Some(self.counter.to_string()),
progress: Some(format!("{} ({})", self.counter, self.repairs)),
..Default::default()
}
}
async fn work(&mut self, _must_exit: &mut watch::Receiver<bool>) -> Result<WorkerState, Error> {
let (item_bytes, next_pos) = match self.garage.version_table.data.store.get_gt(&self.pos)? {
let (item_bytes, next_pos) = match R::table(&self.garage).data.store.get_gt(&self.pos)? {
Some((k, v)) => (v, k),
None => {
info!("repair_versions: finished, done {}", self.counter);
info!(
"{}: finished, done {}, fixed {}",
self.name(),
self.counter,
self.repairs
);
return Ok(WorkerState::Done);
}
};
let version = Version::decode(&item_bytes).ok_or_message("Cannot decode Version")?;
if !version.deleted.get() {
let version_exists = match &version.backlink {
VersionBacklink::Object { bucket_id, key } => {
let object = self.garage.object_table.get(&bucket_id, &key).await?;
match object {
Some(o) => o.versions().iter().any(|x| {
x.uuid == version.uuid && x.state != ObjectVersionState::Aborted
}),
None => false,
}
}
VersionBacklink::MultipartUpload { upload_id } => {
let mpu = self.garage.mpu_table.get(&upload_id, &EmptyKey).await?;
match mpu {
Some(u) => !u.deleted.get(),
None => false,
}
}
};
if !version_exists {
info!("Repair versions: marking version as deleted: {:?}", version);
self.garage
.version_table
.insert(&Version::new(version.uuid, version.backlink, true))
.await?;
}
let entry = <R::T as TableSchema>::E::decode(&item_bytes)
.ok_or_message("Cannot decode table entry")?;
if self.inner.process(&self.garage, entry).await? {
self.repairs += 1;
}
self.counter += 1;
@ -147,49 +150,65 @@ impl Worker for RepairVersionsWorker {
// ----
struct RepairBlockrefsWorker {
garage: Arc<Garage>,
pos: Vec<u8>,
counter: usize,
}
impl RepairBlockrefsWorker {
fn new(garage: Arc<Garage>) -> Self {
Self {
garage,
pos: vec![],
counter: 0,
}
}
}
struct RepairVersions;
#[async_trait]
impl Worker for RepairBlockrefsWorker {
fn name(&self) -> String {
"Block refs repair worker".into()
impl TableRepair for RepairVersions {
type T = VersionTable;
fn table(garage: &Garage) -> &Table<Self::T, TableShardedReplication> {
&garage.version_table
}
fn status(&self) -> WorkerStatus {
WorkerStatus {
progress: Some(self.counter.to_string()),
..Default::default()
}
}
async fn work(&mut self, _must_exit: &mut watch::Receiver<bool>) -> Result<WorkerState, Error> {
let (item_bytes, next_pos) =
match self.garage.block_ref_table.data.store.get_gt(&self.pos)? {
Some((k, v)) => (v, k),
None => {
info!("repair_block_ref: finished, done {}", self.counter);
return Ok(WorkerState::Done);
async fn process(&mut self, garage: &Garage, version: Version) -> Result<bool, Error> {
if !version.deleted.get() {
let version_exists = match &version.backlink {
VersionBacklink::Object { bucket_id, key } => {
let object = garage.object_table.get(&bucket_id, &key).await?;
match object {
Some(o) => o.versions().iter().any(|x| {
x.uuid == version.uuid && x.state != ObjectVersionState::Aborted
}),
None => false,
}
}
VersionBacklink::MultipartUpload { upload_id } => {
let mpu = garage.mpu_table.get(&upload_id, &EmptyKey).await?;
match mpu {
Some(u) => !u.deleted.get(),
None => false,
}
}
};
if !version_exists {
info!("Repair versions: marking version as deleted: {:?}", version);
garage
.version_table
.insert(&Version::new(version.uuid, version.backlink, true))
.await?;
return Ok(true);
}
}
let block_ref = BlockRef::decode(&item_bytes).ok_or_message("Cannot decode BlockRef")?;
Ok(false)
}
}
// ----
struct RepairBlockRefs;
#[async_trait]
impl TableRepair for RepairBlockRefs {
type T = BlockRefTable;
fn table(garage: &Garage) -> &Table<Self::T, TableShardedReplication> {
&garage.block_ref_table
}
async fn process(&mut self, garage: &Garage, block_ref: BlockRef) -> Result<bool, Error> {
if !block_ref.deleted.get() {
let version = self
.garage
let version = garage
.version_table
.get(&block_ref.version, &EmptyKey)
.await?;
@ -200,7 +219,7 @@ impl Worker for RepairBlockrefsWorker {
"Repair block ref: marking block_ref as deleted: {:?}",
block_ref
);
self.garage
garage
.block_ref_table
.insert(&BlockRef {
block: block_ref.block,
@ -208,16 +227,10 @@ impl Worker for RepairBlockrefsWorker {
deleted: true.into(),
})
.await?;
return Ok(true);
}
}
self.counter += 1;
self.pos = next_pos;
Ok(WorkerState::Busy)
}
async fn wait_for_work(&mut self) -> WorkerState {
unreachable!()
Ok(false)
}
}