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|
use std::sync::Arc;
use tokio::sync::watch;
use garage_model::block_ref_table::*;
use garage_model::garage::Garage;
use garage_model::object_table::*;
use garage_model::version_table::*;
use garage_table::*;
use garage_util::error::Error;
use crate::*;
pub struct Repair {
pub garage: Arc<Garage>,
}
impl Repair {
pub async fn repair_worker(&self, opt: RepairOpt, must_exit: watch::Receiver<bool>) {
if let Err(e) = self.repair_worker_aux(opt, must_exit).await {
warn!("Repair worker failed with error: {}", e);
}
}
async fn repair_worker_aux(
&self,
opt: RepairOpt,
must_exit: watch::Receiver<bool>,
) -> Result<(), Error> {
let todo = |x| opt.what.as_ref().map(|y| *y == x).unwrap_or(true);
if todo(RepairWhat::Tables) {
info!("Launching a full sync of tables");
self.garage.bucket_table.syncer.add_full_sync();
self.garage.object_table.syncer.add_full_sync();
self.garage.version_table.syncer.add_full_sync();
self.garage.block_ref_table.syncer.add_full_sync();
self.garage.key_table.syncer.add_full_sync();
}
// TODO: wait for full sync to finish before proceeding to the rest?
if todo(RepairWhat::Versions) {
info!("Repairing the versions table");
self.repair_versions(&must_exit).await?;
}
if todo(RepairWhat::BlockRefs) {
info!("Repairing the block refs table");
self.repair_block_ref(&must_exit).await?;
}
if opt.what.is_none() {
info!("Repairing the RC");
self.repair_rc(&must_exit).await?;
}
if todo(RepairWhat::Blocks) {
info!("Repairing the stored blocks");
self.garage
.block_manager
.repair_data_store(&must_exit)
.await?;
}
Ok(())
}
async fn repair_versions(&self, must_exit: &watch::Receiver<bool>) -> Result<(), Error> {
let mut pos = vec![];
while let Some((item_key, item_bytes)) =
self.garage.version_table.data.store.get_gt(&pos)?
{
pos = item_key.to_vec();
let version = rmp_serde::decode::from_read_ref::<_, Version>(item_bytes.as_ref())?;
if version.deleted.get() {
continue;
}
let object = self
.garage
.object_table
.get(&version.bucket, &version.key)
.await?;
let version_exists = match object {
Some(o) => o
.versions()
.iter()
.any(|x| x.uuid == version.uuid && x.state != ObjectVersionState::Aborted),
None => false,
};
if !version_exists {
info!("Repair versions: marking version as deleted: {:?}", version);
self.garage
.version_table
.insert(&Version::new(
version.uuid,
version.bucket,
version.key,
true,
))
.await?;
}
if *must_exit.borrow() {
break;
}
}
Ok(())
}
async fn repair_block_ref(&self, must_exit: &watch::Receiver<bool>) -> Result<(), Error> {
let mut pos = vec![];
while let Some((item_key, item_bytes)) =
self.garage.block_ref_table.data.store.get_gt(&pos)?
{
pos = item_key.to_vec();
let block_ref = rmp_serde::decode::from_read_ref::<_, BlockRef>(item_bytes.as_ref())?;
if block_ref.deleted.get() {
continue;
}
let version = self
.garage
.version_table
.get(&block_ref.version, &EmptyKey)
.await?;
// The version might not exist if it has been GC'ed
let ref_exists = version.map(|v| !v.deleted.get()).unwrap_or(false);
if !ref_exists {
info!(
"Repair block ref: marking block_ref as deleted: {:?}",
block_ref
);
self.garage
.block_ref_table
.insert(&BlockRef {
block: block_ref.block,
version: block_ref.version,
deleted: true.into(),
})
.await?;
}
if *must_exit.borrow() {
break;
}
}
Ok(())
}
async fn repair_rc(&self, _must_exit: &watch::Receiver<bool>) -> Result<(), Error> {
// TODO
warn!("repair_rc: not implemented");
Ok(())
}
}
|
